CA2444552C - Filler extended fiberglass binder - Google Patents
Filler extended fiberglass binder Download PDFInfo
- Publication number
- CA2444552C CA2444552C CA2444552A CA2444552A CA2444552C CA 2444552 C CA2444552 C CA 2444552C CA 2444552 A CA2444552 A CA 2444552A CA 2444552 A CA2444552 A CA 2444552A CA 2444552 C CA2444552 C CA 2444552C
- Authority
- CA
- Canada
- Prior art keywords
- binder
- fiberglass
- filler material
- filler
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011230 binding agent Substances 0.000 title claims abstract description 86
- 239000000945 filler Substances 0.000 title claims abstract description 60
- 239000011152 fibreglass Substances 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 30
- 229920005862 polyol Polymers 0.000 claims abstract description 25
- 150000003077 polyols Chemical class 0.000 claims abstract description 25
- 239000004927 clay Substances 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 11
- 239000003365 glass fiber Substances 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229920001519 homopolymer Polymers 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000006060 molten glass Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 abstract description 12
- 239000000047 product Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 18
- 239000004606 Fillers/Extenders Substances 0.000 description 12
- 150000008064 anhydrides Chemical class 0.000 description 10
- 239000000654 additive Substances 0.000 description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 8
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical group [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 239000012467 final product Substances 0.000 description 7
- -1 aorylonitrile Chemical compound 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 230000027455 binding Effects 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- ANFKICQAFDDROM-UHFFFAOYSA-N 2-(carboxymethyl)cyclopropane-1-carboxylic acid Chemical compound OC(=O)CC1CC1C(O)=O ANFKICQAFDDROM-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 1
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 description 1
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- GVNWZKBFMFUVNX-UHFFFAOYSA-N Adipamide Chemical compound NC(=O)CCCCC(N)=O GVNWZKBFMFUVNX-UHFFFAOYSA-N 0.000 description 1
- WIVTXBIFTLNVCZ-UHFFFAOYSA-N CC(=C)C(=O)OCCP(=O)=O Chemical compound CC(=C)C(=O)OCCP(=O)=O WIVTXBIFTLNVCZ-UHFFFAOYSA-N 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001253 acrylic acids Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- PMMYEEVYMWASQN-IMJSIDKUSA-N cis-4-Hydroxy-L-proline Chemical compound O[C@@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-IMJSIDKUSA-N 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- LDHQCZJRKDOVOX-IHWYPQMZSA-N isocrotonic acid Chemical compound C\C=C/C(O)=O LDHQCZJRKDOVOX-IHWYPQMZSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 150000002689 maleic acids Chemical class 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- XJRBAMWJDBPFIM-UHFFFAOYSA-N methyl vinyl ether Chemical compound COC=C XJRBAMWJDBPFIM-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- HNEGQIOMVPPMNR-UHFFFAOYSA-N methylfumaric acid Natural products OC(=O)C(C)=CC(O)=O HNEGQIOMVPPMNR-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 150000003008 phosphonic acid esters Chemical class 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/14—Spraying
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/465—Coatings containing composite materials
- C03C25/47—Coatings containing composite materials containing particles, fibres or flakes, e.g. in a continuous phase
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0366—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
Abstract
Provided herewith is a fiberglass binder comprising an aqueous solution of a polycarboxy polymer, a polyol and at least 30 weight percent of a filler material, preferably clay. The clay filler material is generally present in the aqueous solution as a suspension of particles having an average size of 3 µm or less. The clay filler extended fiberglass binder of the present invention is more cost effective without significantly altering the appearance or function of the binder.
Description
FILLER EXTENDED FIBERGLASS BINDER
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to the production of fibrous products. More particularly, the present invention relates to the production of fiberglass products which incorporate a filler, preferably a clay filler.
Description of the Related Art Fiberglass products are commonly produced by melting the glass and then fiberizing the molten liquid. Primary fibers so produced are attenuated into smaller diameter fibers of finite length which typically are deposited onto a moving support or collection surface to form a mass or layer of uniformly distributed, intertwined fibers.
Liquid binder is sprayed on the fibers as they move toward the support. The mass or layer of fibers is subsequently transported into an oven in which the binder is set or cured.
The properties of the fibrous products produced in this manner are based upon the properties of the glass fibers, and the compositions of the glasses themselves. It would at times be beneficial to modify the products in order to enhance certain properties and/or reduce costs. A major problem encountered in introducing additive materials or extenders is the difficulty in uniformly distributing them throughout the fibrous matrix. If liquid additives are not sticky, they may be difficult to adhere to the fibers when sprayed onto the fibers as they move toward the collection surface. If liquid additives are sprayed onto an already formed fibrous mass, it is difficult to uniformly disperse them throughout the mass. It is even more difficult to add solid additives to a layer or a mass of collected fibers so as to uniformly penetrate and become dispersed throughout the mass. Indeed, if the particular additive or extender desired is available only in solid form, the present state of the art of introducing it to the fibrous product dictates against such addition.
U.S. Patent No. 5,123,949 discloses a particular method of adding solid additives to a fiber product. A heat curable liquid binder is sprayed at the same time as the particle additives onto the moving fibers, from a point inside the fiber veil. The specific extenders noted as useful include volcanic ash, expanded perlite, or I
vermiculite. The size of the extender particles generally ranges from one-eighth to one-quarter inch. Such extenders may typically be present in the product up to 70%
by weight, with 40% being a commercially practical maximum amount, as disclosed in the patent.
The addition of fillers or extenders, as well as other additives to the binder solution, is known in the art. For example, see U.S. Patent No. 5,661,213, which lists many different types of additives for a curable aqueous composition used as a binder, including fillers. The use of large amounts of fillers or extenders in binder solutions, if the filler or extender were to not interfere with the appearance or function of the binder, would enable the use of binders in a more cost effective manner.
While the concept of adding fillers to a binder solution has been suggested, particular fillers and their amounts, and/or particular effective methods of adding the filler to the binder solution have not heretofore been contemplated. If such fillers or extenders also enhanced certain properties of the fiberglass product, not only would the economics of its use be desirable, but product advantages would also be realized.
The use of such fillers or extenders in conjunction with binder compositions would be greatly desirable.
Accordingly, an objective of the present invention is to provide an extended binder system for fiberglass which enables the use of the binder in a more cost effective manner, and also avoids substantial problems in the application of the binder containing the filler or extender.
Yet another object of the present invention is to provide an extended binder which also enhances the physical characteristics of the fiberglass product.
These and other objects of the present invention will become apparent to the skilled artisan upon a reading of the following specification and the claims appended hereto.
SUMMARY OF THE INVENTION
In accordance with the foregoing objectives, the present invention provides one with a fiberglass binder comprising an aqueous solution of a polycarboxy polymer, a polyol and at least 30 weight percent of a filler material, preferably a clay filler material. The clay filler preferably comprises bentonite or kaolin. The filler material is suspended in the fiberglass binder aqueous solution, with the average size of the filler material particles being about 3 }gym or less. Such a stable suspension is important to the success of extending the binder.
Among other factors, the present invention is based upon the discovery that the use of a filler material such as clay can be stably suspended in a binder aqueous solution comprised of a polycarboxy polymer and a polyol, in amounts of at least 30 weight percent, thereby enabling a more cost effective use of the fiberglass binder.
The filler material is suspended in the solution by employing particles having an average size of about 3 pm or less, thereby leading to a stable suspension.
Application of the binder using conventional methods is therefore appropriate.
The final product has also been found to exhibit enhanced toughness, and thus better performance, upon suspending the filler, especially clay, in the binder solution.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Fillers and extenders for fiberglass products have been known. Problems with their incorporation into the product, however, have often been difficult, requiring the use of special application techniques. The present invention, however, has found that incorporating a filler into a binder solution as a stable suspension can provide a more economic binder, as well as enhance the binding effectiveness and the ultimate properties of the final product. The presence of the filler in accordance with the present invention actually seems to provide a stronger binder, particularly the clay filler. Employing a suspension of the filler also results in the binder being better dispersed, more uniformly.
The present invention provides one with the opportunity to extend a fiberglass binder solution, thereby making its use more cost effective and economic. As well, the final product is surprisingly found to have enhanced performance characteristics with regard to the toughness of the fiberglass fibers. The final fiberglass product is less brittle as compared to products employed using a binder without the filler.
The fiberglass binder of the present invention comprises an aqueous solution of a polycarboxy polymer, a polyol and at least 30 weight percent of a filler material, preferably clay. The fiberglass binder solution can contain at least 35 weight percent and upwards of 40 weight percent and more of the filler material with good results, for example, from 30-50 weight percent or more. The most preferred filler material is that of clay, and specifically bentonite or kaolin. Other filler materials such as talc, vermiculite, expanded perlite and volcanic ash can be used, as long as they can form a stable suspension of particles in the binder solution.
The filler material is mixed in with the fiberglass binder solution to form a suspension of the filler material in the binder solution. The fiberglass binder solution to which the filler material is added, and in which it is suspended, also comprises a polycarboxy polymer and a polyol. A stable suspension has been found to be obtained when the filler material has an average size of about 3 pm or less, more preferably about 2 pm or less, and most preferably about 1 pm or less. The use of such small particle sizes allows the suspension to maintain its stability for times ranging from days to several hours depending on the initial concentration of solids in the binder system. In production, such suspension times are believed to be adequate for transportation of the binder and the spraying of the binder onto the glass fibers prior to curing.
The use of such a suspended filler material has been found to avoid any substantial effect on the thermoset behavior of the filled binder compared to unfilled.
Thus, the binder can be cured as efficiently and effectively in the oven while achieving the economic and performance benefits realized by the presence of the filler. The cost benefits are achieved due to the binder solution being extended. The performance advantages are achieved in that the final fiberglass product shows additional toughness, and is less brittle than products prepared using a binder that does not contain the filler material of the present invention.
It is also preferred that the fillers employed in the present invention are sufficiently white to maintain acceptable whiteness of the binder after cure.
Such binders include bentonite and kaolin. Titanium dioxide may be added in small quantities to the fiberglass binder to increase whiteness, if desired..
The polycarboxy polymer used in the binder of the present invention comprises an organic polymer or oligomer containing more than one pendant carboxy group. The polycarboxy polymer may be a homopolymer or copolymer prepared from unsaturated carboxylic acids including but not necessarily limited to, acrylic acid, methacrylic acid, crotonic acid, isocrotonic acid, maleic acid, cinnamic acid, 2-methylmaleic acid, itaconic acid, 2-methylitaeonic acid, alpha, beta-methyleneglutaric acid, and the like. Alternative, the polycarboxy polymer may be prepared from unsaturated anhydrides including, but not necessarily limited to, maleic anhydride. methacrylic anhydride, and the like, as well as mixtures thereof.
Methods for polymerizing these acids and anhydrides are well-known in the chemical art.
The polycarboxy polymer of the present invention may additionally comprise a copolymer of one or more of the aforementioned unsaturated carboxylic acids or anhydrides and one or more vinyl compounds including, but not necessarily limited to, styrene, alpha-methylstyrene, aorylonitrile, methacrylonitrile, methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, methyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, blycidyl methacrylate, vinyl methyl ether, vinyl acetate, and the like. Methods for preparing these copolymers are well-known in the art.
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to the production of fibrous products. More particularly, the present invention relates to the production of fiberglass products which incorporate a filler, preferably a clay filler.
Description of the Related Art Fiberglass products are commonly produced by melting the glass and then fiberizing the molten liquid. Primary fibers so produced are attenuated into smaller diameter fibers of finite length which typically are deposited onto a moving support or collection surface to form a mass or layer of uniformly distributed, intertwined fibers.
Liquid binder is sprayed on the fibers as they move toward the support. The mass or layer of fibers is subsequently transported into an oven in which the binder is set or cured.
The properties of the fibrous products produced in this manner are based upon the properties of the glass fibers, and the compositions of the glasses themselves. It would at times be beneficial to modify the products in order to enhance certain properties and/or reduce costs. A major problem encountered in introducing additive materials or extenders is the difficulty in uniformly distributing them throughout the fibrous matrix. If liquid additives are not sticky, they may be difficult to adhere to the fibers when sprayed onto the fibers as they move toward the collection surface. If liquid additives are sprayed onto an already formed fibrous mass, it is difficult to uniformly disperse them throughout the mass. It is even more difficult to add solid additives to a layer or a mass of collected fibers so as to uniformly penetrate and become dispersed throughout the mass. Indeed, if the particular additive or extender desired is available only in solid form, the present state of the art of introducing it to the fibrous product dictates against such addition.
U.S. Patent No. 5,123,949 discloses a particular method of adding solid additives to a fiber product. A heat curable liquid binder is sprayed at the same time as the particle additives onto the moving fibers, from a point inside the fiber veil. The specific extenders noted as useful include volcanic ash, expanded perlite, or I
vermiculite. The size of the extender particles generally ranges from one-eighth to one-quarter inch. Such extenders may typically be present in the product up to 70%
by weight, with 40% being a commercially practical maximum amount, as disclosed in the patent.
The addition of fillers or extenders, as well as other additives to the binder solution, is known in the art. For example, see U.S. Patent No. 5,661,213, which lists many different types of additives for a curable aqueous composition used as a binder, including fillers. The use of large amounts of fillers or extenders in binder solutions, if the filler or extender were to not interfere with the appearance or function of the binder, would enable the use of binders in a more cost effective manner.
While the concept of adding fillers to a binder solution has been suggested, particular fillers and their amounts, and/or particular effective methods of adding the filler to the binder solution have not heretofore been contemplated. If such fillers or extenders also enhanced certain properties of the fiberglass product, not only would the economics of its use be desirable, but product advantages would also be realized.
The use of such fillers or extenders in conjunction with binder compositions would be greatly desirable.
Accordingly, an objective of the present invention is to provide an extended binder system for fiberglass which enables the use of the binder in a more cost effective manner, and also avoids substantial problems in the application of the binder containing the filler or extender.
Yet another object of the present invention is to provide an extended binder which also enhances the physical characteristics of the fiberglass product.
These and other objects of the present invention will become apparent to the skilled artisan upon a reading of the following specification and the claims appended hereto.
SUMMARY OF THE INVENTION
In accordance with the foregoing objectives, the present invention provides one with a fiberglass binder comprising an aqueous solution of a polycarboxy polymer, a polyol and at least 30 weight percent of a filler material, preferably a clay filler material. The clay filler preferably comprises bentonite or kaolin. The filler material is suspended in the fiberglass binder aqueous solution, with the average size of the filler material particles being about 3 }gym or less. Such a stable suspension is important to the success of extending the binder.
Among other factors, the present invention is based upon the discovery that the use of a filler material such as clay can be stably suspended in a binder aqueous solution comprised of a polycarboxy polymer and a polyol, in amounts of at least 30 weight percent, thereby enabling a more cost effective use of the fiberglass binder.
The filler material is suspended in the solution by employing particles having an average size of about 3 pm or less, thereby leading to a stable suspension.
Application of the binder using conventional methods is therefore appropriate.
The final product has also been found to exhibit enhanced toughness, and thus better performance, upon suspending the filler, especially clay, in the binder solution.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Fillers and extenders for fiberglass products have been known. Problems with their incorporation into the product, however, have often been difficult, requiring the use of special application techniques. The present invention, however, has found that incorporating a filler into a binder solution as a stable suspension can provide a more economic binder, as well as enhance the binding effectiveness and the ultimate properties of the final product. The presence of the filler in accordance with the present invention actually seems to provide a stronger binder, particularly the clay filler. Employing a suspension of the filler also results in the binder being better dispersed, more uniformly.
The present invention provides one with the opportunity to extend a fiberglass binder solution, thereby making its use more cost effective and economic. As well, the final product is surprisingly found to have enhanced performance characteristics with regard to the toughness of the fiberglass fibers. The final fiberglass product is less brittle as compared to products employed using a binder without the filler.
The fiberglass binder of the present invention comprises an aqueous solution of a polycarboxy polymer, a polyol and at least 30 weight percent of a filler material, preferably clay. The fiberglass binder solution can contain at least 35 weight percent and upwards of 40 weight percent and more of the filler material with good results, for example, from 30-50 weight percent or more. The most preferred filler material is that of clay, and specifically bentonite or kaolin. Other filler materials such as talc, vermiculite, expanded perlite and volcanic ash can be used, as long as they can form a stable suspension of particles in the binder solution.
The filler material is mixed in with the fiberglass binder solution to form a suspension of the filler material in the binder solution. The fiberglass binder solution to which the filler material is added, and in which it is suspended, also comprises a polycarboxy polymer and a polyol. A stable suspension has been found to be obtained when the filler material has an average size of about 3 pm or less, more preferably about 2 pm or less, and most preferably about 1 pm or less. The use of such small particle sizes allows the suspension to maintain its stability for times ranging from days to several hours depending on the initial concentration of solids in the binder system. In production, such suspension times are believed to be adequate for transportation of the binder and the spraying of the binder onto the glass fibers prior to curing.
The use of such a suspended filler material has been found to avoid any substantial effect on the thermoset behavior of the filled binder compared to unfilled.
Thus, the binder can be cured as efficiently and effectively in the oven while achieving the economic and performance benefits realized by the presence of the filler. The cost benefits are achieved due to the binder solution being extended. The performance advantages are achieved in that the final fiberglass product shows additional toughness, and is less brittle than products prepared using a binder that does not contain the filler material of the present invention.
It is also preferred that the fillers employed in the present invention are sufficiently white to maintain acceptable whiteness of the binder after cure.
Such binders include bentonite and kaolin. Titanium dioxide may be added in small quantities to the fiberglass binder to increase whiteness, if desired..
The polycarboxy polymer used in the binder of the present invention comprises an organic polymer or oligomer containing more than one pendant carboxy group. The polycarboxy polymer may be a homopolymer or copolymer prepared from unsaturated carboxylic acids including but not necessarily limited to, acrylic acid, methacrylic acid, crotonic acid, isocrotonic acid, maleic acid, cinnamic acid, 2-methylmaleic acid, itaconic acid, 2-methylitaeonic acid, alpha, beta-methyleneglutaric acid, and the like. Alternative, the polycarboxy polymer may be prepared from unsaturated anhydrides including, but not necessarily limited to, maleic anhydride. methacrylic anhydride, and the like, as well as mixtures thereof.
Methods for polymerizing these acids and anhydrides are well-known in the chemical art.
The polycarboxy polymer of the present invention may additionally comprise a copolymer of one or more of the aforementioned unsaturated carboxylic acids or anhydrides and one or more vinyl compounds including, but not necessarily limited to, styrene, alpha-methylstyrene, aorylonitrile, methacrylonitrile, methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, methyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, blycidyl methacrylate, vinyl methyl ether, vinyl acetate, and the like. Methods for preparing these copolymers are well-known in the art.
Preferred polycarboxy polymers comprise homopolymers and copolymers of polyacrylic acid. It is particularly preferred that the molecular weight of the polycarboxy polymer, and in particular polyacrylic acid polymer, is less than 10000, more preferably less than 5000, and most preferably about 3000 or less. The low molecular weight polycarboxy polymer, when combined with a low pH binder, results in a final product which exhibits excellent reco/ery and rigidity.
The formaldehyde-free curable aqueous binder composition of the present invention also contains a polyol. containing at least two hydroxyl groups. The polyol must be sufficiently nonvolatile such that it will substantially remain available for reaction with the polyacid in the composition during heating and curing operations.
The polyol may be a compound with a molecular weight less than about 1000 bearing at least two hydroxyl groups such as, for example, ethylene glycol, glycerol, pentaerythritol, trimethylol propane, sorbitol, sucrose, glucose, resorcinol, catechol, pyrogallol, glycollated ureas, 1,4-cyclohexane diol, diethanolamine, triethanolamine, and certain reactive polyols such as, for example, beta-hydroxyalkylamides such as, for example, bis[N,N-di(beta-hydroxyethyl)]adipamide, as may be prepared according to the teachings of U.S. Patent No. 4,076,917, or it may be an addition polymer containing at least two hydroxyl groups such as, for example, polyvinyl alcohol, partially hydrolyzed polyvinyl acetate, and homopolymers or copolymers of hydroxyethyl (meth) acrylate," hydroxypropyl(meth) acrylate, and the like. The most preferred polyol for the purposes of the present invention is triethanolamine (TEA).
The ratio of the number of equivalents of carboxy, anhydride, or salts thereof of the polyacid to the number of equivalents of hydroxyl in the polyol is from about 1/0.01 to about 1/3. An excess of equivalents of carboxy, anhydride, or salts thereof of the polyacid to the equivalents of hydroxyl in the polyol is preferred. The more preferred ratio of the number of equivalents of carboxy, anhydride, or salts thereof in the polyacid to the number of equivalents of hydroxyl in the polyol is from about 1/0.4 to about 1/1. The most preferred ratio of the number of equivalents of carboxy, anhydride, or salts thereof in the polyacid to the number of equivalents of hydroxyl in the polyol is from about 1/0.2 to about 1/0.95, more preferably from 1/0.6 to 1/0.8, and most preferably from 1/0.65 to 1/0.75. A low ratio, approaching 1/0.7 has been found to be of particular advantage in the present invention, when combined with a low molecular weight polycarboxy polymer, and also preferably with a low pH
binder.
It is preferred that the formaldehyde-free curable aqueous binder composition of the present invention also contain a catalyst. Most preferably, the catalyst is a phosphorous-containing accelerator which may be a compound with a molecular weight less than about 1000 such as, for example, an alkali metal polyphosphate, an alkali metal dihydrogen phosphate, a polyphosphoric acid, and an alkyl phosphinic acid or it may be an oligomer or polymer bearing phosphorous-containing groups such as, for example, addition polymers of acrylic and/or maleic acids formed in the presence of sodium hypophosphite, addition polymers prepared from ethylenically unsaturated monomers in the presence of phosphorous salt chain transfer agents or terminators, and addition polymers containing acid-functional monomer residues such as, for example, copolymerized phosphoethyl methacrylate, and like phosphonic acid esters, and copolymerized vinyl sulfonic acid monomers, and their salts. The phosphorous-containing accelerator may be used at a level of from about 1% to about 40%, by weight based on the combined weight of the polyacid and the polyol. Preferred is a level of phosphorous-containing accelerator of from about 2.5% to about 10%, by weight based on the combined weight of the polyacid and the polyol.
It is most preferred that the pH of the binder of the present invention also be low, i.e., no greater than 4.5. For it has been found that the combination of low molecular weight polycarboxy polymer with a lowered pH provides a binder exhibiting minimal processing difficulties and a final product with excellent recovery and rigidity.
Maintaining the pH in the range of greater than 3.5 to 4.5 or less, also allows one to avoid serious problems with corrosion of the equipment while still realizing the benefits of the low pH.
The formaldehyde-free curable aqueous binder composition may be prepared by admixing the polyacid, the polyol, and the phosphorous-containing accelerator using conventional mixing techniques. In another embodiment, a carboxyl- or anhydride-containing addition polymer and a polyol may be present in the same addition polymer, which addition polymer would contain both carboxyl, anhydride, or salts thereof functionality and hydroxyl functionality. In another embodiment, the salts of the carboxy-group are salts of functional alkanolamines with at least two hydroxyl groups such as, for example, diethanolamine, triethanolamine, dipropanolamine, and di-isopropanolamine. In an additional embodiment, the polyol and the phosphorous-containing accelerator may be present in the same addition polymer, which addition polymer may be mixed with a polyacid. In yet another embodiment the carboxyl- or anhydride-containing addition polymer, the polyol, and the phosphorous-containing accelerator may be present in the same addition polymer. Other embodiments will be apparent to one skilled in the art. As disclosed herein-above, the carboxyl groups of the polyacid may be neutralized to an extent of less than about 35% with a fixed base before, during, or after the mixing to provide the aqueous composition. Neutralization may be partially effected during the formation of the polyacid.
Once the composition of the polyacid and the polyol has been prepared, the filler in fine particulate form can then be mixed in with the composition to form the final composition to be sprayed on the fiberglass. As molten streams of glass are drawn into fibers of random lengths and blown into a forming chamber where they are randomly deposited as a mat onto a traveling conveyor, the fibers, while in transit in the forming chamber, are simply sprayed, as is conventional, with the filler extended aqueous binder composition of the present invention. While being drawn, the molten glass fibers generally form a veil. The binder of the present invention can be effectively sprayed from a point inside or outside the fiber veil.
More particularly, in the preparation of fiberglass insulation products, the products can be prepared using conventional techniques. As is well known, a porous mat of fibrous glass can be produced by fiberizing molten glass and immediately forming a fibrous glass mat on a moving conveyor. The expanded mat is then conveyed to and through a curing oven wherein heated air is passed through the mat to cure the resin. The mat is slightly compressed to give the finished product a predetermined thickness and surface finish. Typically, the curing oven is operated at a temperature from about 150 C to about 325 C. Preferably, the temperature ranges from about 180 E to about 225 C. Generally, the mat resides within the oven for a period of time from about %2 minute to about 3 minutes. For the manufacture of conventional thermal or acoustical insulation products, the time -ranges from about 3/4 minute to about 1%2 minutes. The fibrous glass having a cured, rigid binder matrix emerges from the oven in the form of a bat which may be compressed for packaging and shipping and which will thereafter substantially recover its vertical dimension when unconstrained.
The formaldehyde-free curable aqueous composition may also be applied to an already formed nonwoven by conventional techniques such as, for example, air or airless spraying, padding, saturating, roll coating, curtain coating, beater deposition, coagulation, or the like.
The waterborne formaldehyde-free composition, after it is applied to a nonwoven, is heated to effect drying and curing. The duration and temperature of heating will affect the rate of drying, processability and handleability, and property development of the treated substrate. Heat treatment at about 120 C, to about 400 C, for a period of time between about 3 seconds to about 15 minutes may be carried out; treatment at about 150 C, to about 250 C, is preferred. The drying and curing functions may be effected in two or more distinct steps, if desired.
For example, the composition may be first heated at a temperature and for a time sufficient to substantially dry but not to substantially cure the composition and then heated for a second time at a higher temperature and/or for a longer period of time to effect curing. Such a procedure, referred to as "B-staging", may be used to provide binder-treated nonwoven, for example, in roll form, which may at a later stage be cured, with or without forming or molding into a particular configuration, concurrent with the curing process.
The final fiberglass products may be used for applications such as, for example, insulation balls or rolls, as reinforcing mat for roofing or flooring applications, as roving, as microglass-based substrate for printed circuit boards or battery separators, as filter stock, as tape stock, as tape board for office petitions, in duct liners or duct board, and as reinforcement scrim in cementitious and non-cementitious coatings for masonry.
The present invention thereby provides one with a novel binder composition which is a suspension of the filler particles in an aqueous solution of a polycarboxy polymer and a polyol. The suspension allows for a more economic use of a binder solution, while not interfering in the binding activity or curing of the binder.
Furthermore, the filler presence has been found to improve the performance characteristics of the final product, in that the final product is generally less brittle as compared to the use of an unfilled binder.
While the invention has been described with preferred embodiments, it is to be understood that variations and modifications may be resorted to as will be apparent to those skilled in the art. Such variations and modifications are to be considered within the purview and the scope of the claims appended hereto.
.8
The formaldehyde-free curable aqueous binder composition of the present invention also contains a polyol. containing at least two hydroxyl groups. The polyol must be sufficiently nonvolatile such that it will substantially remain available for reaction with the polyacid in the composition during heating and curing operations.
The polyol may be a compound with a molecular weight less than about 1000 bearing at least two hydroxyl groups such as, for example, ethylene glycol, glycerol, pentaerythritol, trimethylol propane, sorbitol, sucrose, glucose, resorcinol, catechol, pyrogallol, glycollated ureas, 1,4-cyclohexane diol, diethanolamine, triethanolamine, and certain reactive polyols such as, for example, beta-hydroxyalkylamides such as, for example, bis[N,N-di(beta-hydroxyethyl)]adipamide, as may be prepared according to the teachings of U.S. Patent No. 4,076,917, or it may be an addition polymer containing at least two hydroxyl groups such as, for example, polyvinyl alcohol, partially hydrolyzed polyvinyl acetate, and homopolymers or copolymers of hydroxyethyl (meth) acrylate," hydroxypropyl(meth) acrylate, and the like. The most preferred polyol for the purposes of the present invention is triethanolamine (TEA).
The ratio of the number of equivalents of carboxy, anhydride, or salts thereof of the polyacid to the number of equivalents of hydroxyl in the polyol is from about 1/0.01 to about 1/3. An excess of equivalents of carboxy, anhydride, or salts thereof of the polyacid to the equivalents of hydroxyl in the polyol is preferred. The more preferred ratio of the number of equivalents of carboxy, anhydride, or salts thereof in the polyacid to the number of equivalents of hydroxyl in the polyol is from about 1/0.4 to about 1/1. The most preferred ratio of the number of equivalents of carboxy, anhydride, or salts thereof in the polyacid to the number of equivalents of hydroxyl in the polyol is from about 1/0.2 to about 1/0.95, more preferably from 1/0.6 to 1/0.8, and most preferably from 1/0.65 to 1/0.75. A low ratio, approaching 1/0.7 has been found to be of particular advantage in the present invention, when combined with a low molecular weight polycarboxy polymer, and also preferably with a low pH
binder.
It is preferred that the formaldehyde-free curable aqueous binder composition of the present invention also contain a catalyst. Most preferably, the catalyst is a phosphorous-containing accelerator which may be a compound with a molecular weight less than about 1000 such as, for example, an alkali metal polyphosphate, an alkali metal dihydrogen phosphate, a polyphosphoric acid, and an alkyl phosphinic acid or it may be an oligomer or polymer bearing phosphorous-containing groups such as, for example, addition polymers of acrylic and/or maleic acids formed in the presence of sodium hypophosphite, addition polymers prepared from ethylenically unsaturated monomers in the presence of phosphorous salt chain transfer agents or terminators, and addition polymers containing acid-functional monomer residues such as, for example, copolymerized phosphoethyl methacrylate, and like phosphonic acid esters, and copolymerized vinyl sulfonic acid monomers, and their salts. The phosphorous-containing accelerator may be used at a level of from about 1% to about 40%, by weight based on the combined weight of the polyacid and the polyol. Preferred is a level of phosphorous-containing accelerator of from about 2.5% to about 10%, by weight based on the combined weight of the polyacid and the polyol.
It is most preferred that the pH of the binder of the present invention also be low, i.e., no greater than 4.5. For it has been found that the combination of low molecular weight polycarboxy polymer with a lowered pH provides a binder exhibiting minimal processing difficulties and a final product with excellent recovery and rigidity.
Maintaining the pH in the range of greater than 3.5 to 4.5 or less, also allows one to avoid serious problems with corrosion of the equipment while still realizing the benefits of the low pH.
The formaldehyde-free curable aqueous binder composition may be prepared by admixing the polyacid, the polyol, and the phosphorous-containing accelerator using conventional mixing techniques. In another embodiment, a carboxyl- or anhydride-containing addition polymer and a polyol may be present in the same addition polymer, which addition polymer would contain both carboxyl, anhydride, or salts thereof functionality and hydroxyl functionality. In another embodiment, the salts of the carboxy-group are salts of functional alkanolamines with at least two hydroxyl groups such as, for example, diethanolamine, triethanolamine, dipropanolamine, and di-isopropanolamine. In an additional embodiment, the polyol and the phosphorous-containing accelerator may be present in the same addition polymer, which addition polymer may be mixed with a polyacid. In yet another embodiment the carboxyl- or anhydride-containing addition polymer, the polyol, and the phosphorous-containing accelerator may be present in the same addition polymer. Other embodiments will be apparent to one skilled in the art. As disclosed herein-above, the carboxyl groups of the polyacid may be neutralized to an extent of less than about 35% with a fixed base before, during, or after the mixing to provide the aqueous composition. Neutralization may be partially effected during the formation of the polyacid.
Once the composition of the polyacid and the polyol has been prepared, the filler in fine particulate form can then be mixed in with the composition to form the final composition to be sprayed on the fiberglass. As molten streams of glass are drawn into fibers of random lengths and blown into a forming chamber where they are randomly deposited as a mat onto a traveling conveyor, the fibers, while in transit in the forming chamber, are simply sprayed, as is conventional, with the filler extended aqueous binder composition of the present invention. While being drawn, the molten glass fibers generally form a veil. The binder of the present invention can be effectively sprayed from a point inside or outside the fiber veil.
More particularly, in the preparation of fiberglass insulation products, the products can be prepared using conventional techniques. As is well known, a porous mat of fibrous glass can be produced by fiberizing molten glass and immediately forming a fibrous glass mat on a moving conveyor. The expanded mat is then conveyed to and through a curing oven wherein heated air is passed through the mat to cure the resin. The mat is slightly compressed to give the finished product a predetermined thickness and surface finish. Typically, the curing oven is operated at a temperature from about 150 C to about 325 C. Preferably, the temperature ranges from about 180 E to about 225 C. Generally, the mat resides within the oven for a period of time from about %2 minute to about 3 minutes. For the manufacture of conventional thermal or acoustical insulation products, the time -ranges from about 3/4 minute to about 1%2 minutes. The fibrous glass having a cured, rigid binder matrix emerges from the oven in the form of a bat which may be compressed for packaging and shipping and which will thereafter substantially recover its vertical dimension when unconstrained.
The formaldehyde-free curable aqueous composition may also be applied to an already formed nonwoven by conventional techniques such as, for example, air or airless spraying, padding, saturating, roll coating, curtain coating, beater deposition, coagulation, or the like.
The waterborne formaldehyde-free composition, after it is applied to a nonwoven, is heated to effect drying and curing. The duration and temperature of heating will affect the rate of drying, processability and handleability, and property development of the treated substrate. Heat treatment at about 120 C, to about 400 C, for a period of time between about 3 seconds to about 15 minutes may be carried out; treatment at about 150 C, to about 250 C, is preferred. The drying and curing functions may be effected in two or more distinct steps, if desired.
For example, the composition may be first heated at a temperature and for a time sufficient to substantially dry but not to substantially cure the composition and then heated for a second time at a higher temperature and/or for a longer period of time to effect curing. Such a procedure, referred to as "B-staging", may be used to provide binder-treated nonwoven, for example, in roll form, which may at a later stage be cured, with or without forming or molding into a particular configuration, concurrent with the curing process.
The final fiberglass products may be used for applications such as, for example, insulation balls or rolls, as reinforcing mat for roofing or flooring applications, as roving, as microglass-based substrate for printed circuit boards or battery separators, as filter stock, as tape stock, as tape board for office petitions, in duct liners or duct board, and as reinforcement scrim in cementitious and non-cementitious coatings for masonry.
The present invention thereby provides one with a novel binder composition which is a suspension of the filler particles in an aqueous solution of a polycarboxy polymer and a polyol. The suspension allows for a more economic use of a binder solution, while not interfering in the binding activity or curing of the binder.
Furthermore, the filler presence has been found to improve the performance characteristics of the final product, in that the final product is generally less brittle as compared to the use of an unfilled binder.
While the invention has been described with preferred embodiments, it is to be understood that variations and modifications may be resorted to as will be apparent to those skilled in the art. Such variations and modifications are to be considered within the purview and the scope of the claims appended hereto.
.8
Claims (20)
1. A fiberglass binder, comprising an aqueous solution of a polycarboxy polymer, a polyol, and at least 30 wt.% of a filler material, with the filler material being suspended in the aqueous solution.
2. The fiberglass binder of claim 1, wherein the polycarboxy polymer comprises a homopolymer or copolymer of polyacrylic acid.
3. The fiberglass binder of claim 1, wherein the amount of filler material in the fiberglass binder is at least 35% by weight.
4. The fiberglass binder of claim 1, wherein the amount of filler material in the fiberglass binder is at least 40% by weight.
5. The fiberglass binder of claim 1, wherein the filler material is comprised of clay.
6. The fiberglass binder of claim 5, wherein the clay filler comprises bentonite.
7. The fiberglass binder of claim 5, wherein the clay filler comprises kaolin.
8. The fiberglass binder of claim 1, wherein the polyol is triethanoiamine.
9. The fiberglass binder of claim 1, wherein the binder further comprises a phosphorus based catalyst.
10. The fiberglass binder of claim 1, wherein the filler material suspended in the solution is of an average particle size of 3 µm or less.
11. The fiberglass binder of claim 1, wherein the filler material suspended in solution is of an average size of 1 µm or less.
12. The fiberglass binder of claim 1, wherein the solution has a pH
ranging from 3.5 to 4.5.
ranging from 3.5 to 4.5.
13. A fiberglass product, comprised of the binder of claim 1.
14. The fiberglass product of claim 13, wherein the product is insulation.
15. A fiberglass product, comprised of the binder of claim 10.
16. The fiberglass product of claim 15, wherein the product is insulation.
17. A process for preparing fiberglass mat, which comprises preparing an aqueous binder solution comprised of a polycarboxy polymer, a polyol, and at least 30 wt% of a filler material suspended therein, drawing molten streams of glass into fibers, spraying the binder solution containing the suspended filler material onto the molten streams of glass fibers, and collecting the glass fibers as a mat.
18. The process of claim 17, wherein the filler material comprises a clay material.
19. The process of claim 17, wherein the average particle size of the filler material suspended in the binder solution is about 3 µm or less.
20. The process of claim 17, wherein the molten glass fibers when drawn form a veil, and the binder is sprayed onto the fibers from a point inside the veil.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/268,594 US6818694B2 (en) | 2002-10-10 | 2002-10-10 | Filler extended fiberglass binder |
US10/268,594 | 2002-10-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2444552A1 CA2444552A1 (en) | 2004-04-10 |
CA2444552C true CA2444552C (en) | 2011-09-20 |
Family
ID=32068610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2444552A Expired - Lifetime CA2444552C (en) | 2002-10-10 | 2003-10-10 | Filler extended fiberglass binder |
Country Status (2)
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US (1) | US6818694B2 (en) |
CA (1) | CA2444552C (en) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7026390B2 (en) * | 2002-12-19 | 2006-04-11 | Owens Corning Fiberglas Technology, Inc. | Extended binder compositions |
US7842382B2 (en) | 2004-03-11 | 2010-11-30 | Knauf Insulation Gmbh | Binder compositions and associated methods |
US20050214534A1 (en) * | 2004-03-29 | 2005-09-29 | Adamo Joseph R | Extended curable compositions for use as binders |
US20080014814A1 (en) * | 2006-07-13 | 2008-01-17 | Geel Paul A | Highly filled fibrous veil |
EP1776504A1 (en) * | 2004-06-18 | 2007-04-25 | Owens Corning | Fibrous veil impregnated with surface finish formulation |
JP2008516071A (en) | 2004-10-13 | 2008-05-15 | クナーフ インシュレーション ゲーエムベーハー | Polyester binding composition |
US20070014995A1 (en) | 2005-07-12 | 2007-01-18 | Jacob Chacko | Thin rotary-fiberized glass insulation and process for producing same |
DK2574639T3 (en) | 2005-07-26 | 2019-07-15 | Knauf Insulation Gmbh | Method for making glass fiber insulation products |
JP4876468B2 (en) * | 2005-07-27 | 2012-02-15 | パナソニック株式会社 | Nonaqueous electrolyte secondary battery |
US20080014815A1 (en) * | 2006-07-13 | 2008-01-17 | Geel Paul A | Highly filled fibrous veil |
US7638592B2 (en) | 2007-01-16 | 2009-12-29 | Battelle Memorial Institute | Formaldehyde free binders |
CN101668713B (en) | 2007-01-25 | 2012-11-07 | 可耐福保温材料有限公司 | Mineral fibre board |
EP2108006B8 (en) | 2007-01-25 | 2020-11-11 | Knauf Insulation GmbH | Binders and materials made therewith |
WO2008089847A1 (en) | 2007-01-25 | 2008-07-31 | Knauf Insulation Limited | Composite wood board |
EP2137223B1 (en) | 2007-04-13 | 2019-02-27 | Knauf Insulation GmbH | Composite maillard-resole binders |
GB0715100D0 (en) | 2007-08-03 | 2007-09-12 | Knauf Insulation Ltd | Binders |
US20090275699A1 (en) * | 2008-05-05 | 2009-11-05 | Mingfu Zhang | Starch containing formaldehyde-free thermoset binders for fiber products |
US20100007135A1 (en) * | 2008-07-10 | 2010-01-14 | Pil-Se Lee | Fiberglass Pipe-shaped Insulator and Method of Manufacturing the Same |
US20100040832A1 (en) * | 2008-08-13 | 2010-02-18 | Saint-Gobain Technical Fabrics America, Inc. | Formaldehyde free woven and non-woven fabrics having improved hot wet tensile strength and binder formulations for same |
EP2462169B1 (en) | 2009-08-07 | 2019-02-27 | Knauf Insulation | Molasses binder |
KR101835899B1 (en) | 2010-05-07 | 2018-03-07 | 크나우프 인설레이션, 인크. | Carbohydrate binders and materials made therewith |
PT2566904T (en) | 2010-05-07 | 2021-08-30 | Knauf Insulation | Carbohydrate polyamine binders and materials made therewith |
EP2576882B1 (en) | 2010-06-07 | 2015-02-25 | Knauf Insulation | Fiber products having temperature control additives |
US20120146297A1 (en) * | 2010-12-08 | 2012-06-14 | Mayer Goyenechea Caballero Juan Antonio | Textile material impregnated with water base solution |
US10301454B2 (en) | 2010-12-08 | 2019-05-28 | Juan Antonio MAYER GOYENECHEA CABALLERO | Water-based elastomeric composition for impregnating textile material and uses thereof |
US10017648B2 (en) * | 2010-12-16 | 2018-07-10 | Awi Licensing Llc | Sag resistant, formaldehyde-free coated fibrous substrate |
US20140186635A1 (en) | 2011-05-07 | 2014-07-03 | Knauf Insulation | Liquid high solids binder composition |
GB201206193D0 (en) | 2012-04-05 | 2012-05-23 | Knauf Insulation Ltd | Binders and associated products |
GB201214734D0 (en) | 2012-08-17 | 2012-10-03 | Knauf Insulation Ltd | Wood board and process for its production |
RU2502602C1 (en) * | 2012-09-06 | 2013-12-27 | Общество с ограниченной ответственностью "Стеклопластик" | Binder for glass-fiber material and pull-extruded section thereof |
PL2928936T3 (en) | 2012-12-05 | 2022-12-27 | Knauf Insulation Sprl | Binder |
US11401204B2 (en) | 2014-02-07 | 2022-08-02 | Knauf Insulation, Inc. | Uncured articles with improved shelf-life |
GB201408909D0 (en) | 2014-05-20 | 2014-07-02 | Knauf Insulation Ltd | Binders |
GB201412709D0 (en) | 2014-07-17 | 2014-09-03 | Knauf Insulation And Knauf Insulation Ltd | Improved binder compositions and uses thereof |
GB201517867D0 (en) | 2015-10-09 | 2015-11-25 | Knauf Insulation Ltd | Wood particle boards |
GB201610063D0 (en) | 2016-06-09 | 2016-07-27 | Knauf Insulation Ltd | Binders |
GB201701569D0 (en) | 2017-01-31 | 2017-03-15 | Knauf Insulation Ltd | Improved binder compositions and uses thereof |
JP7219270B2 (en) | 2017-10-09 | 2023-02-07 | オウェンス コーニング インテレクチュアル キャピタル リミテッド ライアビリティ カンパニー | Aqueous binder composition |
CN111201275B (en) | 2017-10-09 | 2022-07-01 | 欧文斯科宁知识产权资产有限公司 | Aqueous adhesive composition |
GB201804907D0 (en) | 2018-03-27 | 2018-05-09 | Knauf Insulation Ltd | Composite products |
GB201804908D0 (en) | 2018-03-27 | 2018-05-09 | Knauf Insulation Ltd | Binder compositions and uses thereof |
US11813833B2 (en) | 2019-12-09 | 2023-11-14 | Owens Corning Intellectual Capital, Llc | Fiberglass insulation product |
CA3164193A1 (en) * | 2019-12-11 | 2021-06-17 | Owens Corning Intellectual Capital, Llc | Nonwoven mat with reduced permeability and increased caliper |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5123949A (en) * | 1991-09-06 | 1992-06-23 | Manville Corporation | Method of introducing addivites to fibrous products |
US5318990A (en) * | 1993-06-21 | 1994-06-07 | Owens-Corning Fiberglas Technology Inc. | Fibrous glass binders |
GB9524608D0 (en) * | 1995-12-01 | 1996-01-31 | Rockwool Int | Manufacture of man-made vitreous fibre products |
DE19729161A1 (en) * | 1997-07-08 | 1999-01-14 | Basf Ag | Thermally curable, aqueous compositions |
DE19735959A1 (en) * | 1997-08-19 | 1999-02-25 | Basf Ag | Thermally curable, aqueous binding agent composition |
EP1082272B1 (en) * | 1998-05-28 | 2001-11-21 | Owens Corning | Corrosion inhibiting composition for polyacrylic acid based binders |
US6331350B1 (en) * | 1998-10-02 | 2001-12-18 | Johns Manville International, Inc. | Polycarboxy/polyol fiberglass binder of low pH |
-
2002
- 2002-10-10 US US10/268,594 patent/US6818694B2/en not_active Expired - Lifetime
-
2003
- 2003-10-10 CA CA2444552A patent/CA2444552C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20040069020A1 (en) | 2004-04-15 |
CA2444552A1 (en) | 2004-04-10 |
US6818694B2 (en) | 2004-11-16 |
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