CA2007482A1 - Laminated packing material with good gas and aroma barrier properties - Google Patents
Laminated packing material with good gas and aroma barrier propertiesInfo
- Publication number
- CA2007482A1 CA2007482A1 CA002007482A CA2007482A CA2007482A1 CA 2007482 A1 CA2007482 A1 CA 2007482A1 CA 002007482 A CA002007482 A CA 002007482A CA 2007482 A CA2007482 A CA 2007482A CA 2007482 A1 CA2007482 A1 CA 2007482A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- barrier
- carrier
- gas
- carrier layer
- 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.)
- Abandoned
Links
- 230000004888 barrier function Effects 0.000 title claims abstract description 37
- 238000012856 packing Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000002648 laminated material Substances 0.000 claims abstract description 14
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 11
- 239000011147 inorganic material Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000007767 bonding agent Substances 0.000 claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- 238000001771 vacuum deposition Methods 0.000 claims description 6
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 150000003377 silicon compounds Chemical class 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229920003182 Surlyn® Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- -1 3uice Chemical compound 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910021331 inorganic silicon compound Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31692—Next to addition polymer from unsaturated monomers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31844—Of natural gum, rosin, natural oil or lac
- Y10T428/31848—Next to cellulosic
Abstract
ABSTRACT (Figure 2) A laminated material for the manufacture of packing containers with good gas and aroma barrier properties and or parts for such containers, and a method for the manufacture of the laminated material (1).
The laminated material (1) comprises a first partial laminate (1) comprising a carrier layer (2) of thermoplastics and a barrier layer (3) of inorganic material of 50-500 .ANG.
thickness serving as a gas and aroma barrier, and a second partial laminate (1b) comprising a carrier layer (4) and a barrier layer (5) of inorganic material of 50-500 .ANG. thickness serving as a gas and aroma barrier, these partial laminates being joined to one another by means of an intermediate layer (6) of bonding agent, their respective barrier layers facing inwards towards one another.
The laminated material (1) comprises a first partial laminate (1) comprising a carrier layer (2) of thermoplastics and a barrier layer (3) of inorganic material of 50-500 .ANG.
thickness serving as a gas and aroma barrier, and a second partial laminate (1b) comprising a carrier layer (4) and a barrier layer (5) of inorganic material of 50-500 .ANG. thickness serving as a gas and aroma barrier, these partial laminates being joined to one another by means of an intermediate layer (6) of bonding agent, their respective barrier layers facing inwards towards one another.
Description
1~3~
A LA~.T~AT~ PACKING MATERlA~ WlTY. GOO~ GAS AND AROMA ~ARRIER
PRO~T~ES AN~ P ~ETH03 FO~ TU.E MP.~ ACTURE OF T~, MATERlAL
L~ . . _. _ The present invention relates to a lsminated material for the manufacture of packing containers with good gas and aroma bsrrier properties ~nd~or parts for such containers. The invention also relates to a method for the manufacture of the laminated material~
In packing technology so-called non-returnable or one-wAy packages have beqn used for a long time for liquid foodstuffs.
A very large group of these packages ls m~nufactured from a laminated ma~erial comprisinz a stiffness l~yer of paper or cardboard and outer and inner ~oatings of thermoplaatics which on the one hand provide the package with the required llquid-tightness and on the other hand make it possible for thepackage to be made permanent in ~ts desired seometric outer shape by means of so-called heat-sealing which is based on the surface-fusin~ of ther~oplastic-coated regions of the ~aterlal folded az~inst one ~nother by means of a supply of heat and pressure so as to form liquid-tight, mechanically strong sealing 30ints. This material; which is often used in pJckages for less oxygen gas sensitive foodstuffs, e.g. milk, iacks the necessary tightness properties towards gas and certlin types of aroma substances ~nd is less suitable, therefore, in packages intended for foodstuffs more sensitive to oxygen gas, e.g. 3uice, which also contains such readily penetrating and~or readily sbsorbed aroma substances. To furnish these packa~es with the required ti~htness characteristics towards light and the said aroma substances, the materl~l is complemented, therefore, usually by An aluminium foil <Al foll) applied to the lnside of the package which provides the packaze with these necessary g85 and aroma barrier properties.
A serious problem in the case of the p~ckin~ material described, which comprises an A1 foil as a ~as and aroma b~rrier, ls that an Al foil bscause of its low entensibility easily ~ursts or cracks along particularly exposed rezions or so-called crosses during the conversion of the material to pac~age,, and the stralns on the materi~l within these re~ions m~y even be 50 strong that the thermopla~tic coatings included in the material also rupture and seriously im?ai~ the tightness 5 propertie~ of the finished psck~ges as ~ conse~uence.
It is also known to pro~id0 ~ packing m~terial with a barrier laye. of ~ polymer materisl e.g. ethylene-vinyl slcohol copolymer (EYOH),serving as a gas and aroma barrier, but known barrier l~ye.s of this type as a rule ~re moisture-sensitve and lose gas-tightness properttès if they are exposed to molsture.
It is in ob~ect of the prqsent invention, therefore, to provide directlons re~srding a new laminsted matsrial for the manufacture of packing containers with good gas and aro~a barrier properties snd~or pa~ts fo~ ~uch coL.tainers, without, or with ne~ligible, risk of ruptures and crack formation in the m~terial during it~ conr~èrslon to packin~ cont~iners~
It is a further ob~ect to provide 8 packing material free from moisture-sensitive gas snd aroma barrier layers.
It is a furthar ob~ect to proYide d laminsted material for th~ ~anufacture of gas and aroma-tight pscking containers with good dimensional stsbility without the use of a stiffness Iayer of paper or slmilar moisture-sensitive mAterial.
These objects are achieYed in accordance with the present inYentiOn in that a l~minated material of the type described ln the introduction has been giYen the characteristic that it compris2s ~ first partial laminate comprising ~ carrler lsyer and a barrier lsyer of lnorg~nlc mat.erlal with a layer thickness of 50-500 A serving as a gas and uroma barrier, ~nd a second partisl laminate comprislnz Q carrier layer ~nd a barrler layer of inorganic materi~l with a lay2r thlckness of 50-500 A serving ~s a ga~ and aroma barrier, snd that the partial laminates are Joined to one another by means of an lntermediate layer of bonding sgent, their respective barrier layers facing inwards tow~rds one another, It has been found that the inorganic material layers which, for exa~plq, may consist of an inorgAnic silicon compound, e.g.
silicon dioxide ~SiO2~ or silicon nitride ~Si~N4~, in spite of their s~ aterial thickness possess extruordinarlly good gdS
and aroma ~arrier properties at the same time us, thanks to their ~mall material thickness, they are sufficiently flexi~le snd extensible to make possible u conver~ion of the ~aterial to packing contuiners snd/or parts for containers without any risk of cracking or hursting even in the most e~posed materlal regions~ A further advantage which is obtsined by the barrier layer of the preferred type mentioned here ~s thst it is practically completely inert and therefore does not, or only to 8 negligible degree, ~ffect, or is ~ffected by, the particular contents in the finished package.
It is a further object of the present invention to provide a method for he msnufacture of the l~minated material.
This object is 6chieved in ~ccordsnce with the invention either by the method which is descrlbed in the following clal~ 6 or by the method described in the following claim 7 The invention will now be described in detsil wlth specisl reference to the attached drawings, wherein Figure 1 shows schematic~lly a pert of a la~inated,weblike material in accordance with the invention, Figure 2 is a cross-section ulong the line II-Il in Figure 1, Figure 3 illustrutes schematically a method for the manuf~cture of the laminated material in ~ccordance with the invention, and Figurs 4 illustr~tes schemstically a second method for the m~nufacture of the laminsted material ln sccord~nce with the invention.
Figure 1 thus shows schematically ~ portlon corresponding to a whole package length L of a weblike, lsminsted materi&l 1 in uccordQnce with the invention for the manufacture of packing contsiners with good gas and aromu b~rrier properties. As 1 evident from Figure 2 the materisl 1 consists of u first purti~l luminete la comprising ~ carrier layer 2 and a b~rrier l~yer 3 of inorganic materlul with tightness properties towards gBS and ~0 ~8'~
aroma substances applied to the side of the carrler layer facin~
inwards, and a second partial laminate Ib co~prising a carrier layer 4 and a barrier layer 5 of inorganic ma~eri~l with similarly goo~ tightness properties towards gas and a~oma substsnces applied to the side of the carrier layer 4 facing inwards. The two partial laminet~es la and lb sre ~oined t ~ne another by means of an intermediate layer ~ of bondin~ agent with good adhesion to the mutually facin~ barrier lsyers 3 and 5, for exsmple a conventionsl bonding agent of the surlyn, EAA
etc~ type.
The barrler layers 3 and 5 which may consist, for example, of silicon dioxide ~SiOz~ or silicon nitride (Si.~4) are spplied to their respectivs carrier lsyers 2 and 4 by vacuum deposition or by so-called hot stamp technique end hsve a ~sterial 15 thlckness of only 50-500, prefarably 200 A.
From the materisl 1 are manufactured packages with good gas ~nd urom~ bsrrier properties in accordance with conventional technio~ue in thst the two lGngitudinal edge zones 7 and 8 of the ~ateri~l first are combined with one ~nother by ~esns of so-called heat-sealing in an overlap join~ so as to for~ a tube.
The tube i~ filled with the particuler contents and is di~ided into closed packing units by repeated flattening and tr~nsverse sealing along zones ~ at right angles to the longitudinAl axis - of the tubs. There~fter the packing units are separated from oneanother by mesns of cuts in the transverse sesl~ng zone~ 9 and are glven the desired finul geometric shape, usually a parallelepiped, with the help of u further forming and sealing operation during which the double-wslled, triangular corner lugs of the cushionlike packing units ~re folded in against, and are sealed to, the outside of the packag2s.
The m~nufacture of the packages in the known msnner described ~bove is facilitated in that the carrier l~yers 2 and 4 are constituted of thermoplastics, preferably polythene, which thus makes it possible to combine thermopla~tic-coated material regions ~olded towards one unother along longitudinal edge ~ones 7 snd 8 und transverse seallng zone.s ~ re~pectively by so-called .
:
,,'' : :
heQt-sealing during which the mutually facing thermo?~astic coatings with the help of a sup?ly of heat and pressure are made to surface-fuse with one snother so as to form li~uid-ti~ht, mechanically stron~ sealin~ ioints. ~y choosing the c~rrler layers 2 and 4 of thermoplastic material a further sdvantage is obtained in that the msterial 1 is wholly free from~ and for its mechanicsl rigidity and stability is independent of, rel~tiYely thick stiffne:,s layers of paper or similar moisture-ser,sltiYe materiQl which is often used in conventional packing material.
As mentioned earlier, a packing material I in acordance with the invention can be manufactured by anyone of the methods illustrated schematically in Figure 3 and Figure 4.
In accordan~e with Figure 3 the material 1 ls manufactured from a first web lO of pref~bricated partl~l laminste la comprising a carrier layer 2 of thermoplastics and a bsrrier lsyer 3 of inorganic mIterial of 50-500 A th~ickness applied to one side of the carrier layer by vacuu~ deposition, and ~ second web ll of prefabricated partlal laminate lb comprising a cArrier layer 4 ~nd a barrier layer 5 of inorganic ~aterisl of 50-500 ~ thic~ness applied to one side of the carrier l~yer by ~acuum deposition. The two webs 10 snd 11 ~or partlal lsminates la and lb respectively~ are brou~ht together with their respective barrier layers 3 and 5 fscing inwards towards one another and are conducted through the nip between a pair of cooperRting counterrotating cylinders 12, by me~ns of which th~
webs sre llstingly joined to one another wlth the help of a b~nding agent S' which ~t the ~ame ti~e is supplied between the convergin~ webs with the help of an applicator 13 so 8S to forM
the finished laminated materi,al 1~
In accordance with Pigure 4 the finished laminated material I in ~ccordsnce with the invention is Danufactured similarly from a first web 14 ~correspondin~ to parti~l laminate la) comprising a carrier layer 2 and a barrler layer of inorg~nlc materiAl of 50-500 A thickness spplied to one side of the car,ri~r l~yar snd a second we~ 15 ~corresponding to pJrtisl laminate lb~ comprising a carrier lsyer 4 of thermopl~stic ~ate.i~l and ~ b~rr.er layer of inorgsnic material of 50-500 A
thickness applied to one side of the carrier layer~ The two we~s 14 and 15 ure conducted ~i~ deflection rollers 16 joint~y with their respective barrier layers facing towurds one another through the nip between u pair of cooperating, counterrotating cylinders 17 with the help of which the webs are lastingly joined to one anothe~ by mesns of a bonding sgent 6' which at th~ sa~e time is suDplisd between the conver~ing wehs with the help of an upplicator 1~ so as to form the finished m~teri~l 1.
The method uccordin~ to Figure 4 is distlnguished from the eurlier method lnsofar QS the manner in whlch the two partial l~min~tes or webs 14 and 15 are manuf~ctured is concerned ~nd, in particulur, the manner in which the respectlve c~rrler layers 2 ~nd 4 included in~he p~rtial laminates or webs are provided with their respective barrler l~yers 3 snd 5. According to Figure 4 the first web 14 is ~anufactured so that a web la of the ther~oplast~c carrier layer 2 ~us shown OR the left in Figure 4~ is brou~ht together with 8 ~eb 19 comprising ~ polymer currier 20 (e.g. polyester? which on lts side fecing towards the web la support ~ layer 3' of the inorg~nic material of 50-500 A
spplied by vacuum deposition. The web~ 18 and 19 sr2 conducted Jointly through the nip between ~ pair of cooperating cylinders 21 which according to conventionàl so-called hot stamp t~chni~ue transfer and deposit the inor~anic lsyer 3' on the weblike c~rrier layer 2 to form the first partial laminate or web 14, whilst the polymer carrier 20 freed from the barrier layer 3' 1~
curried ~w~y for renewed vscuum deposition and repeated trunsfer of inorgunic material. The other web 15 (corresponding to partisl lsminat~ lb~ is manufHctured similarly (as shown on the right in Figure 4) in thst a w~b 22 of the carrier layer 4 is brought together Wittl a web 2~ comprislng a polymsr carrier 24 which on its side fscing towards the web 22 has a layer 5' of $norganic ~aterial of 50-500 A deposited by v~cuum deposition.
The two webs 22 and 23 are conducted ~ointly through the nip between B pair of hested cooper~ting cyllnders 25 which in ~ccordsnce with conventional ~o-called hot stamp technl~ue transfer and deposit the lsyer 5' on the web 22 so as to form the second partial l~minate. The polymer carrier 24 freed from the layer 5'likewise is carried sway for renewed vac~u~, deposition and repeated transfer of inorganic m~teria~.
To facilit~te the transfer of the respective layer 3' and 5' it may be appropriate, or even necessary, in some cases to perfo~m some kind of surface treatment of the webs 18 and 22, e.g. application of a bonding agent of the surlyn, EAA etc type which also contributes to an lncrease in ~dhesion between the 10 layers 3' and 5' snd the respective webs 18 and 22.
A laminated material in accordance wlth the invention can also be used for the ~anufscture of package parts, e.~. so-c~lled pull-tabs snd se~ling strips for spplication to ths inside of packin~ containers, whlch 15 particularly d~sirable in tho~e csses where the pack~ge ls fabricsted ~inly from a p~cking mat~rial of conventional type comprising a carrier layer of paper or cardboard which along the lon~itudinal overlap joint forMed during the tube formation hss an ~bsorbent eut ~dge freely exposed tow~r~s the insi~e of the package and which h~s to be se~led and protected.
:~.
.
A LA~.T~AT~ PACKING MATERlA~ WlTY. GOO~ GAS AND AROMA ~ARRIER
PRO~T~ES AN~ P ~ETH03 FO~ TU.E MP.~ ACTURE OF T~, MATERlAL
L~ . . _. _ The present invention relates to a lsminated material for the manufacture of packing containers with good gas and aroma bsrrier properties ~nd~or parts for such containers. The invention also relates to a method for the manufacture of the laminated material~
In packing technology so-called non-returnable or one-wAy packages have beqn used for a long time for liquid foodstuffs.
A very large group of these packages ls m~nufactured from a laminated ma~erial comprisinz a stiffness l~yer of paper or cardboard and outer and inner ~oatings of thermoplaatics which on the one hand provide the package with the required llquid-tightness and on the other hand make it possible for thepackage to be made permanent in ~ts desired seometric outer shape by means of so-called heat-sealing which is based on the surface-fusin~ of ther~oplastic-coated regions of the ~aterlal folded az~inst one ~nother by means of a supply of heat and pressure so as to form liquid-tight, mechanically strong sealing 30ints. This material; which is often used in pJckages for less oxygen gas sensitive foodstuffs, e.g. milk, iacks the necessary tightness properties towards gas and certlin types of aroma substances ~nd is less suitable, therefore, in packages intended for foodstuffs more sensitive to oxygen gas, e.g. 3uice, which also contains such readily penetrating and~or readily sbsorbed aroma substances. To furnish these packa~es with the required ti~htness characteristics towards light and the said aroma substances, the materl~l is complemented, therefore, usually by An aluminium foil <Al foll) applied to the lnside of the package which provides the packaze with these necessary g85 and aroma barrier properties.
A serious problem in the case of the p~ckin~ material described, which comprises an A1 foil as a ~as and aroma b~rrier, ls that an Al foil bscause of its low entensibility easily ~ursts or cracks along particularly exposed rezions or so-called crosses during the conversion of the material to pac~age,, and the stralns on the materi~l within these re~ions m~y even be 50 strong that the thermopla~tic coatings included in the material also rupture and seriously im?ai~ the tightness 5 propertie~ of the finished psck~ges as ~ conse~uence.
It is also known to pro~id0 ~ packing m~terial with a barrier laye. of ~ polymer materisl e.g. ethylene-vinyl slcohol copolymer (EYOH),serving as a gas and aroma barrier, but known barrier l~ye.s of this type as a rule ~re moisture-sensitve and lose gas-tightness properttès if they are exposed to molsture.
It is in ob~ect of the prqsent invention, therefore, to provide directlons re~srding a new laminsted matsrial for the manufacture of packing containers with good gas and aro~a barrier properties snd~or pa~ts fo~ ~uch coL.tainers, without, or with ne~ligible, risk of ruptures and crack formation in the m~terial during it~ conr~èrslon to packin~ cont~iners~
It is a further ob~ect to provide 8 packing material free from moisture-sensitive gas snd aroma barrier layers.
It is a furthar ob~ect to proYide d laminsted material for th~ ~anufacture of gas and aroma-tight pscking containers with good dimensional stsbility without the use of a stiffness Iayer of paper or slmilar moisture-sensitive mAterial.
These objects are achieYed in accordance with the present inYentiOn in that a l~minated material of the type described ln the introduction has been giYen the characteristic that it compris2s ~ first partial laminate comprising ~ carrler lsyer and a barrier lsyer of lnorg~nlc mat.erlal with a layer thickness of 50-500 A serving as a gas and uroma barrier, ~nd a second partisl laminate comprislnz Q carrier layer ~nd a barrler layer of inorganic materi~l with a lay2r thlckness of 50-500 A serving ~s a ga~ and aroma barrier, snd that the partial laminates are Joined to one another by means of an lntermediate layer of bonding sgent, their respective barrier layers facing inwards tow~rds one another, It has been found that the inorganic material layers which, for exa~plq, may consist of an inorgAnic silicon compound, e.g.
silicon dioxide ~SiO2~ or silicon nitride ~Si~N4~, in spite of their s~ aterial thickness possess extruordinarlly good gdS
and aroma ~arrier properties at the same time us, thanks to their ~mall material thickness, they are sufficiently flexi~le snd extensible to make possible u conver~ion of the ~aterial to packing contuiners snd/or parts for containers without any risk of cracking or hursting even in the most e~posed materlal regions~ A further advantage which is obtsined by the barrier layer of the preferred type mentioned here ~s thst it is practically completely inert and therefore does not, or only to 8 negligible degree, ~ffect, or is ~ffected by, the particular contents in the finished package.
It is a further object of the present invention to provide a method for he msnufacture of the l~minated material.
This object is 6chieved in ~ccordsnce with the invention either by the method which is descrlbed in the following clal~ 6 or by the method described in the following claim 7 The invention will now be described in detsil wlth specisl reference to the attached drawings, wherein Figure 1 shows schematic~lly a pert of a la~inated,weblike material in accordance with the invention, Figure 2 is a cross-section ulong the line II-Il in Figure 1, Figure 3 illustrutes schematically a method for the manuf~cture of the laminated material in ~ccordance with the invention, and Figurs 4 illustr~tes schemstically a second method for the m~nufacture of the laminsted material ln sccord~nce with the invention.
Figure 1 thus shows schematically ~ portlon corresponding to a whole package length L of a weblike, lsminsted materi&l 1 in uccordQnce with the invention for the manufacture of packing contsiners with good gas and aromu b~rrier properties. As 1 evident from Figure 2 the materisl 1 consists of u first purti~l luminete la comprising ~ carrier layer 2 and a b~rrier l~yer 3 of inorganic materlul with tightness properties towards gBS and ~0 ~8'~
aroma substances applied to the side of the carrler layer facin~
inwards, and a second partial laminate Ib co~prising a carrier layer 4 and a barrier layer 5 of inorganic ma~eri~l with similarly goo~ tightness properties towards gas and a~oma substsnces applied to the side of the carrier layer 4 facing inwards. The two partial laminet~es la and lb sre ~oined t ~ne another by means of an intermediate layer ~ of bondin~ agent with good adhesion to the mutually facin~ barrier lsyers 3 and 5, for exsmple a conventionsl bonding agent of the surlyn, EAA
etc~ type.
The barrler layers 3 and 5 which may consist, for example, of silicon dioxide ~SiOz~ or silicon nitride (Si.~4) are spplied to their respectivs carrier lsyers 2 and 4 by vacuum deposition or by so-called hot stamp technique end hsve a ~sterial 15 thlckness of only 50-500, prefarably 200 A.
From the materisl 1 are manufactured packages with good gas ~nd urom~ bsrrier properties in accordance with conventional technio~ue in thst the two lGngitudinal edge zones 7 and 8 of the ~ateri~l first are combined with one ~nother by ~esns of so-called heat-sealing in an overlap join~ so as to for~ a tube.
The tube i~ filled with the particuler contents and is di~ided into closed packing units by repeated flattening and tr~nsverse sealing along zones ~ at right angles to the longitudinAl axis - of the tubs. There~fter the packing units are separated from oneanother by mesns of cuts in the transverse sesl~ng zone~ 9 and are glven the desired finul geometric shape, usually a parallelepiped, with the help of u further forming and sealing operation during which the double-wslled, triangular corner lugs of the cushionlike packing units ~re folded in against, and are sealed to, the outside of the packag2s.
The m~nufacture of the packages in the known msnner described ~bove is facilitated in that the carrier l~yers 2 and 4 are constituted of thermoplastics, preferably polythene, which thus makes it possible to combine thermopla~tic-coated material regions ~olded towards one unother along longitudinal edge ~ones 7 snd 8 und transverse seallng zone.s ~ re~pectively by so-called .
:
,,'' : :
heQt-sealing during which the mutually facing thermo?~astic coatings with the help of a sup?ly of heat and pressure are made to surface-fuse with one snother so as to form li~uid-ti~ht, mechanically stron~ sealin~ ioints. ~y choosing the c~rrler layers 2 and 4 of thermoplastic material a further sdvantage is obtained in that the msterial 1 is wholly free from~ and for its mechanicsl rigidity and stability is independent of, rel~tiYely thick stiffne:,s layers of paper or similar moisture-ser,sltiYe materiQl which is often used in conventional packing material.
As mentioned earlier, a packing material I in acordance with the invention can be manufactured by anyone of the methods illustrated schematically in Figure 3 and Figure 4.
In accordan~e with Figure 3 the material 1 ls manufactured from a first web lO of pref~bricated partl~l laminste la comprising a carrier layer 2 of thermoplastics and a bsrrier lsyer 3 of inorganic mIterial of 50-500 A th~ickness applied to one side of the carrier layer by vacuu~ deposition, and ~ second web ll of prefabricated partlal laminate lb comprising a cArrier layer 4 ~nd a barrier layer 5 of inorganic ~aterisl of 50-500 ~ thic~ness applied to one side of the carrier l~yer by ~acuum deposition. The two webs 10 snd 11 ~or partlal lsminates la and lb respectively~ are brou~ht together with their respective barrier layers 3 and 5 fscing inwards towards one another and are conducted through the nip between a pair of cooperRting counterrotating cylinders 12, by me~ns of which th~
webs sre llstingly joined to one another wlth the help of a b~nding agent S' which ~t the ~ame ti~e is supplied between the convergin~ webs with the help of an applicator 13 so 8S to forM
the finished laminated materi,al 1~
In accordance with Pigure 4 the finished laminated material I in ~ccordsnce with the invention is Danufactured similarly from a first web 14 ~correspondin~ to parti~l laminate la) comprising a carrier layer 2 and a barrler layer of inorg~nlc materiAl of 50-500 A thickness spplied to one side of the car,ri~r l~yar snd a second we~ 15 ~corresponding to pJrtisl laminate lb~ comprising a carrier lsyer 4 of thermopl~stic ~ate.i~l and ~ b~rr.er layer of inorgsnic material of 50-500 A
thickness applied to one side of the carrier layer~ The two we~s 14 and 15 ure conducted ~i~ deflection rollers 16 joint~y with their respective barrier layers facing towurds one another through the nip between u pair of cooperating, counterrotating cylinders 17 with the help of which the webs are lastingly joined to one anothe~ by mesns of a bonding sgent 6' which at th~ sa~e time is suDplisd between the conver~ing wehs with the help of an upplicator 1~ so as to form the finished m~teri~l 1.
The method uccordin~ to Figure 4 is distlnguished from the eurlier method lnsofar QS the manner in whlch the two partial l~min~tes or webs 14 and 15 are manuf~ctured is concerned ~nd, in particulur, the manner in which the respectlve c~rrler layers 2 ~nd 4 included in~he p~rtial laminates or webs are provided with their respective barrler l~yers 3 snd 5. According to Figure 4 the first web 14 is ~anufactured so that a web la of the ther~oplast~c carrier layer 2 ~us shown OR the left in Figure 4~ is brou~ht together with 8 ~eb 19 comprising ~ polymer currier 20 (e.g. polyester? which on lts side fecing towards the web la support ~ layer 3' of the inorg~nic material of 50-500 A
spplied by vacuum deposition. The web~ 18 and 19 sr2 conducted Jointly through the nip between ~ pair of cooperating cylinders 21 which according to conventionàl so-called hot stamp t~chni~ue transfer and deposit the inor~anic lsyer 3' on the weblike c~rrier layer 2 to form the first partial laminate or web 14, whilst the polymer carrier 20 freed from the barrier layer 3' 1~
curried ~w~y for renewed vscuum deposition and repeated trunsfer of inorgunic material. The other web 15 (corresponding to partisl lsminat~ lb~ is manufHctured similarly (as shown on the right in Figure 4) in thst a w~b 22 of the carrier layer 4 is brought together Wittl a web 2~ comprislng a polymsr carrier 24 which on its side fscing towards the web 22 has a layer 5' of $norganic ~aterial of 50-500 A deposited by v~cuum deposition.
The two webs 22 and 23 are conducted ~ointly through the nip between B pair of hested cooper~ting cyllnders 25 which in ~ccordsnce with conventional ~o-called hot stamp technl~ue transfer and deposit the lsyer 5' on the web 22 so as to form the second partial l~minate. The polymer carrier 24 freed from the layer 5'likewise is carried sway for renewed vac~u~, deposition and repeated transfer of inorganic m~teria~.
To facilit~te the transfer of the respective layer 3' and 5' it may be appropriate, or even necessary, in some cases to perfo~m some kind of surface treatment of the webs 18 and 22, e.g. application of a bonding agent of the surlyn, EAA etc type which also contributes to an lncrease in ~dhesion between the 10 layers 3' and 5' snd the respective webs 18 and 22.
A laminated material in accordance wlth the invention can also be used for the ~anufscture of package parts, e.~. so-c~lled pull-tabs snd se~ling strips for spplication to ths inside of packin~ containers, whlch 15 particularly d~sirable in tho~e csses where the pack~ge ls fabricsted ~inly from a p~cking mat~rial of conventional type comprising a carrier layer of paper or cardboard which along the lon~itudinal overlap joint forMed during the tube formation hss an ~bsorbent eut ~dge freely exposed tow~r~s the insi~e of the package and which h~s to be se~led and protected.
:~.
.
Claims (7)
1. A laminated material for the manufacture of packing containers with good gas and aroma barrier properties, c h a r a c t e r i z e d i n that it comprises a first partial laminate (1a) comprising a carrier layer (2) and a barrier layer (3) or inorganic material with a layer thickness of 50-500 .ANG. serving as gas and aroma barrier, and a second partial laminate (1b) comprising a carrier layer (4) and a barrier layer (5) of inorganic material with a layer thickness of 50-500.ANG. serving as gas and aroma barrier, and that the partial laminates (1a and 1b) are joined to one another by means of an intermediate layer (6) of bonding agent , their respective barrier layers (3 and 5) facing one another.
2. A laminatd material in accordance with claim 1, c h a r a c t e r i z e d i n that the barrier layers (3 and 5) are applied to the respective carrier layer (2 and 4) by means of vacuum deposition.
3. A laminated material in accordance with claim 1, c h a r a c t e r i z e d i n that the barrier layers (3 and 5) are applied to the respective carrier layer (2 and 4) by means of so-called hot stamp technique.
4. A laminated material in accordance with anyone of the pre-ceding claims, c h a r a c t e r i z e d i n that the barrier layers (3 and
5) consist of a silicon compound.
5. A laminated material in accordance with anyone of the pre-ceding claims, c h a r a c t e r i z e d i n that the carrier layers (2 and 4) consist of a thermoplastic material.
5. A laminated material in accordance with anyone of the pre-ceding claims, c h a r a c t e r i z e d i n that the carrier layers (2 and 4) consist of a thermoplastic material.
6. A methdod for the manufacture of a laminated material in accordance with claim 1, c h a r a c t e r i z e d i n that a first delaminate (1a) is manufactured in that a layer (3) of inorganic material of 50-500 .ANG. thickness is applied to one side of a carrier layer (2) by means of vacuum deposition, that a second partial laminate (1b) is manufactured in that a layer (5) of inorganic material of 50-500 .ANG. thickness is applied to one side of a carrier layer (4) by means of vacum deposition, and that the two partial laminates (1a and 1b) are bonded to one another by means of an intermediate layer (6) of bonding agent, their respective barrier layers facing one another.
7. A method for the manufacture of a laminated material in accordance with claim 1, c h a r a c t e r i z e d i n that a first partial laminate (1a) comprising a carrier layer (2) and a baffler layer (3) of inorganic material serving as gas and aroma barrier is manufactured in that a film (3') of the inorganic material with a film thickness of 50-500 .ANG. is applied to one side of a polymer carrier (20) by means of vacuum deposition whereafter the vacuum-deposited film (3') is transferred from the polymer carrier (20) to the carrier layer (2) by means of so-called hot stamp technique, that a seccond partial laminate (1b) comprising a carrier layer (4) and a layer (5) of inorganic material serving as gas and aroma barrier is manufactured in that a film (5') of the inorganic material with a film thickness of 50-500 .ANG.
is applied to one side of a polymer carrier (24) by means of vacuum deposition whereafter the vacuum-deposited film (5') is transferred from the polymer carrier (24) to the carrier layer (22) by means of so-called hot stamp technique, and that the two partial laminates (1a and 1b) are joined to one another by means of an intermediate layer of bonding agent (6), their respective barrier layers facing one another so as to form the laminated material.
is applied to one side of a polymer carrier (24) by means of vacuum deposition whereafter the vacuum-deposited film (5') is transferred from the polymer carrier (24) to the carrier layer (22) by means of so-called hot stamp technique, and that the two partial laminates (1a and 1b) are joined to one another by means of an intermediate layer of bonding agent (6), their respective barrier layers facing one another so as to form the laminated material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8900080A SE468082B (en) | 1989-01-11 | 1989-01-11 | LAMINATE FOR PREPARATION OF PACKAGING CONTAINERS WITH GOOD GAS AND AROMBARRIAR PROPERTIES, INCLUDING A LAYER CONSISTING OF A SILICONE SOCIETY |
| SE8900080-6 | 1989-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2007482A1 true CA2007482A1 (en) | 1990-07-11 |
Family
ID=20374720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002007482A Abandoned CA2007482A1 (en) | 1989-01-11 | 1990-01-10 | Laminated packing material with good gas and aroma barrier properties |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5122410A (en) |
| EP (1) | EP0385054B1 (en) |
| JP (1) | JPH02245326A (en) |
| AT (1) | ATE164114T1 (en) |
| AU (1) | AU622258B2 (en) |
| CA (1) | CA2007482A1 (en) |
| DE (1) | DE69032141T2 (en) |
| ES (1) | ES2115587T3 (en) |
| RU (1) | RU1830038C (en) |
| SE (1) | SE468082B (en) |
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|---|---|---|---|---|
| US5683534A (en) * | 1989-01-11 | 1997-11-04 | Tetra Laval Holdings & Finance S.A. | Method for the manufacture of laminated packing material with good gas and aroma barrier properties |
| SE500863C2 (en) * | 1989-01-11 | 1994-09-19 | Roby Teknik Ab | Laminated packaging material with good gas and flavor barrier properties, as well as ways of making the material |
| ES2032243B1 (en) * | 1990-06-27 | 1994-01-16 | Desarrollos Quimicos S A Soc E | PROCEDURE FOR OBTAINING 1,1-BIS (4-CHLOROPHENYL) -2,2,2-TRICHLOROETHANOL. |
| DE4102367A1 (en) * | 1991-01-28 | 1992-08-06 | Mildenberger & Willing Verpack | Composite film based on polyolefin(s) - comprises poly-olefinic outer layers enclosing internal polymeric or thin metallic barrier layer to resist moisture and oxygen@ |
| DE4128820C2 (en) * | 1991-08-30 | 2001-04-12 | Hoechst Trespaphan Gmbh | Composite film with a good oxygen barrier |
| US5506036A (en) * | 1991-09-04 | 1996-04-09 | Ab Tetra Pak | Easy-to-recycle laminated material for packaging use |
| CH684069A5 (en) * | 1991-11-29 | 1994-07-15 | Alusuisse Lonza Services Ag | Packaging Kunststoffolienverbunden. |
| EP0812779B1 (en) * | 1991-12-26 | 2000-08-09 | Toyo Boseki Kabushiki Kaisha | A gas barrier film |
| SE502583C2 (en) * | 1992-04-02 | 1995-11-20 | Tetra Laval Holdings & Finance | Ways of producing packaging material in the form of a web |
| SE9202933D0 (en) * | 1992-10-07 | 1992-10-07 | Tetra Alfa Holdings | SEATING STERILIZATION OF INSIDE LAYER WITH A PACKAGING MATERIAL |
| US5670224A (en) * | 1992-11-13 | 1997-09-23 | Energy Conversion Devices, Inc. | Modified silicon oxide barrier coatings produced by microwave CVD deposition on polymeric substrates |
| FR2705798B1 (en) * | 1993-05-25 | 1995-07-13 | Kodak Pathe | Recyclable complex for packaging a photographic or radiographic film. |
| CH685755A5 (en) * | 1993-06-03 | 1995-09-29 | Tetra Pak Suisse Sa | A process for preparing a laminate. |
| SE512256C2 (en) * | 1993-10-27 | 2000-02-21 | Tetra Laval Holdings & Finance | Packaging laminate with gas and light barrier properties as well as ways of producing the laminate |
| CH687614A5 (en) * | 1994-02-04 | 1997-01-15 | Tetra Pak Suisse Sa | A method of providing a packaging with excellent barrier properties with respect to gases. |
| CH687601A5 (en) * | 1994-02-04 | 1997-01-15 | Tetra Pak Suisse Sa | Process for the production of internally sterile packaging with excellent barrier properties. |
| US5728224A (en) * | 1995-09-13 | 1998-03-17 | Tetra Laval Holdings & Finance S.A. | Apparatus and method for manufacturing a packaging material using gaseous phase atmospheric photo chemical vapor deposition to apply a barrier layer to a moving web substrate |
| US6093274A (en) * | 1996-02-02 | 2000-07-25 | Westvaco Corporation | Method of making a composite paperboard structure with a silicon-oxide-coated film for improving the shelf life of oxygen-sensitive products |
| US5916685A (en) * | 1996-07-09 | 1999-06-29 | Tetra Laval Holdings & Finance, Sa | Transparent high barrier multilayer structure |
| US5876812A (en) * | 1996-07-09 | 1999-03-02 | Tetra Laval Holdings & Finance, Sa | Nanocomposite polymer container |
| US6569539B2 (en) | 1996-10-30 | 2003-05-27 | Tetra Level Holdings & Finance S.A. | Gas barrier packaging laminate method for production thereof and packaging containers |
| SE509131C2 (en) * | 1997-04-04 | 1998-12-07 | Tetra Laval Holdings & Finance | Packaging laminate comprising an encapsulated moisture sensitive gas barrier layer, methods for its preparation, and packaging container of the laminate |
| JP3403044B2 (en) * | 1997-12-09 | 2003-05-06 | キヤノン株式会社 | Packaging container |
| SE518351C2 (en) | 1998-05-22 | 2002-09-24 | Tetra Laval Holdings & Finance | Packaging material and packaging made of the material for photosensitive products |
| AU780606B2 (en) | 1999-12-22 | 2005-04-07 | Tetra Laval Holdings & Finance Sa | Method for preparing laminate for packaging material and laminate for packaging material |
| DE10047043A1 (en) * | 2000-09-22 | 2002-04-11 | Wolff Walsrode Ag | Foil laminates as high barrier foils and their use in vacuum insulation panels |
| CA2352567A1 (en) * | 2001-07-06 | 2003-01-06 | Mohamed Latreche | Translucent material displaying ultra-low transport of gases and vapors, and method for its production |
| US7122234B2 (en) | 2002-11-13 | 2006-10-17 | Tetra Laval Holding & Finance S.A. | Transparent plastic gas barrier packaging laminate |
| SE526512C2 (en) * | 2002-11-13 | 2005-09-27 | Tetra Laval Holdings & Finance | Transparent plastic laminated packaging laminate with gas barrier |
| KR100704269B1 (en) * | 2003-05-16 | 2007-04-09 | 도판 인사츠 가부시키가이샤 | Transparent gas barrier multilayer film, electroluminescent light-emitting device using same, electroluminescent display, and electrophoretic display panel |
| MXPA06000506A (en) * | 2003-07-18 | 2006-04-05 | Tetra Laval Holdings & Finance | Plastic gas barrier packaging laminate. |
| US20050228465A1 (en) * | 2004-04-09 | 2005-10-13 | Christa Harris | Thermal device for activatable thermochemical compositions |
| SE527944C2 (en) * | 2004-05-10 | 2006-07-18 | Tetra Laval Holdings & Finance | Packaging laminate in plastic and with gas barrier, packaging container and method for producing the packaging laminate |
| US7476428B2 (en) | 2004-05-12 | 2009-01-13 | Tetra—Laval Holdings & Finance S.A. | Plastic gas barrier packaging laminate |
| DE102009003225A1 (en) * | 2009-05-19 | 2010-11-25 | Evonik Degussa Gmbh | Transparent, weather-resistant barrier film, production by lamination, extrusion lamination or extrusion coating |
| CN105173385A (en) * | 2015-08-28 | 2015-12-23 | 广西点图包装有限公司 | Damp-proof packing material |
| US10894625B1 (en) * | 2020-07-29 | 2021-01-19 | Verre Vert, Inc. | Lightweight polymer bottle for wine and spirits |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813315A (en) * | 1968-12-18 | 1974-05-28 | Valyi Emery I | Method of laminating plastic to metal |
| US3740306A (en) * | 1971-08-06 | 1973-06-19 | Milprint Inc | Multiple-layer packaging film with intermediate protective layer |
| AU550491B2 (en) * | 1981-04-03 | 1986-03-20 | Flex Products, Inc. | Flexible polymer film with vapour impermeable coating |
| US4702963A (en) * | 1981-04-03 | 1987-10-27 | Optical Coating Laboratory, Inc. | Flexible polymer film with vapor impermeable coating |
| FR2508873A1 (en) * | 1981-07-06 | 1983-01-07 | Rhone Poulenc Films | PROCESS FOR PACKAGING OXYGEN- AND / OR WATER-VAPOR SENSITIVE MATERIALS |
| WO1987001679A1 (en) * | 1985-09-12 | 1987-03-26 | Toppan Printing Co., Ltd. | Microwave-heated cooked foods |
| CA1296852C (en) * | 1985-10-11 | 1992-03-10 | Henry George Schirmer | High oxygen barrier coextruded film |
-
1989
- 1989-01-11 SE SE8900080A patent/SE468082B/en unknown
- 1989-12-19 US US07/452,365 patent/US5122410A/en not_active Expired - Lifetime
-
1990
- 1990-01-02 AT AT90100009T patent/ATE164114T1/en not_active IP Right Cessation
- 1990-01-02 ES ES90100009T patent/ES2115587T3/en not_active Expired - Lifetime
- 1990-01-02 EP EP90100009A patent/EP0385054B1/en not_active Expired - Lifetime
- 1990-01-02 DE DE69032141T patent/DE69032141T2/en not_active Expired - Fee Related
- 1990-01-08 RU SU4742757A patent/RU1830038C/en active
- 1990-01-10 AU AU47840/90A patent/AU622258B2/en not_active Ceased
- 1990-01-10 CA CA002007482A patent/CA2007482A1/en not_active Abandoned
- 1990-01-11 JP JP2004416A patent/JPH02245326A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE8900080D0 (en) | 1989-01-11 |
| DE69032141D1 (en) | 1998-04-23 |
| SE8900080L (en) | 1990-07-12 |
| AU622258B2 (en) | 1992-04-02 |
| JPH02245326A (en) | 1990-10-01 |
| US5122410A (en) | 1992-06-16 |
| ATE164114T1 (en) | 1998-04-15 |
| ES2115587T3 (en) | 1998-07-01 |
| RU1830038C (en) | 1993-07-23 |
| AU4784090A (en) | 1990-07-19 |
| DE69032141T2 (en) | 1998-07-02 |
| EP0385054B1 (en) | 1998-03-18 |
| EP0385054A1 (en) | 1990-09-05 |
| SE468082B (en) | 1992-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |