CA2439513A1 - A composite product - Google Patents

A composite product Download PDF

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Publication number
CA2439513A1
CA2439513A1 CA 2439513 CA2439513A CA2439513A1 CA 2439513 A1 CA2439513 A1 CA 2439513A1 CA 2439513 CA2439513 CA 2439513 CA 2439513 A CA2439513 A CA 2439513A CA 2439513 A1 CA2439513 A1 CA 2439513A1
Authority
CA
Canada
Prior art keywords
composite product
layer
functional
substrate layer
product according
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.)
Granted
Application number
CA 2439513
Other languages
French (fr)
Other versions
CA2439513C (en
Inventor
Basil Naji
John Sydney Cottier
Robert Lyons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
James Hardie Technology Ltd
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27507501&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2439513(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from AUPR3476A external-priority patent/AUPR347601A0/en
Priority claimed from AUPR3474A external-priority patent/AUPR347401A0/en
Priority claimed from AUPR3477A external-priority patent/AUPR347701A0/en
Priority claimed from AUPR3475A external-priority patent/AUPR347501A0/en
Priority claimed from AUPR3478A external-priority patent/AUPR347801A0/en
Application filed by Individual filed Critical Individual
Publication of CA2439513A1 publication Critical patent/CA2439513A1/en
Application granted granted Critical
Publication of CA2439513C publication Critical patent/CA2439513C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/14Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/52Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/522Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/40Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/46Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04Waste materials; Refuse
    • C04B18/06Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08Flue dust, i.e. fly ash
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/12Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S106/00Compositions: coating or plastic
    • Y10S106/01Fly ash
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249924Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/249932Fiber embedded in a layer derived from a water-settable material [e.g., cement, gypsum, etc.]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249953Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249967Inorganic matrix in void-containing component
    • Y10T428/249968Of hydraulic-setting material
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249953Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249971Preformed hollow element-containing
    • Y10T428/249972Resin or rubber element
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249953Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249986Void-containing component contains also a solid fiber or solid particle
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/25Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/26Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264Up to 3 mils
    • Y10T428/2651 mil or less
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31652Of asbestos
    • Y10T428/31667Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]

Abstract

A method of manufacturing a composite product comprising providing a substra te layer and a slurry formulation including a hydraulic binder and dewatering agent. The slurry is then applied to the substrate layer to form a functiona l layer and the functional layer dewatered through the substrate layer. The application of the slurry to form the functional layer and dewatering steps can be repeated to build up a laminated composite product. Functional additives may be included in each layer to provide desired properties to tha t layer and indeed to the subsequent composite product.

Claims (50)

1. A composite product comprising a substrate layer and one or more functional layers applied thereto, each functional layer including a mixture of hydraulic binder, dewatering agent wherein the quantity of dewatering agent is sufficient to permit de-watering of each functional layer through the substrate layer and any additional functional layer.
2. A composite product according to claim 1, wherein each functional layer includes one or more functional additives to provide desired properties to that layer.
3. A composite product according to claim 1 or claim 2, wherein the substrate layer is a fibre reinforced base material.
4. A composite product according to any one of the preceding claims, wherein the substrate layer is a reinforced cementitious product.
5. A composite product according to any one of the preceding claims, wherein the functional layers are added to both sides of the substrate layer.
6. A composite product according to any one of the preceding claims, wherein the functional layers are added to one side of the substrate layer.
7. A composite product according to any one of the preceding claims, wherein each functional layer is covered by a reinforcing layer.
8. A composite product according to any one of the preceding claims, wherein the reinforcing layer comprises fibre mesh or netting.
9. A composite product according to any one of the preceding claims, wherein the reinforcing layer is a fibre reinforced cementitious layer.
10. A composite product according to any one of the preceding claims, wherein the composite product comprises outer layers provided by fibre reinforced cementitious layers with one or more functional layers positioned therebetween.
11. A composite product according to any one of the preceding claims, wherein the functional layers have a low fibre content relative to the fibre reinforced cementitious layers.
12. A composite product according to any one of the preceding claims, wherein additives and/or fillers are incorporated in the functional layers to provide the desired acoustic properties, thermal or fire performance, density modification, cost or production efficiency, compressive or tensile strength, water permeability, density or aesthetic properties to the composite product.
13. A composite product according to any one of the preceding claims, wherein the dewatering agent is provided in a sufficient quantity to maintain porosity functional layer(s) and the substrate layer during dewatering.
14. A composite product according to any one of the preceding claims, wherein the dewatering agent is a particulate material.
15. A composite product according to any one of the preceding claims, wherein the dewatering agent is selected from fly ash, alumina trihydrate, silica flour, cenospheres or mixtures thereof.
16. A composite product according to any one of the preceding claims, wherein, after coating, the coated product is cured by air curing, steam curing or hydrothermally cured in an autoclave.
17. A composite product according to any one of the preceding claims, wherein the product to be coated is cementitious building board or product or gypsum building board.
18. A composite product according to any one of the preceding claims, wherein the thickness of the functional layer on the product is between 0.1 and 10 mm.
19. A composite product according to any one of the preceding claims, wherein the hydraulic binder used in the coating is selected from the group consisting of white, grey or pigmented cements, hydraulic limes or mixtures thereof.
20. A composite product according to any one of the preceding claims, wherein the binder in the formulation is between 10 and 50 wt% based on total dry ingredients.
21. A composite product according to any one of the preceding claims, wherein fly ash is the dewatering agent.
22. A composite product according to any one of the preceding claims, wherein the dewatering agent comprises:
i) 10 to 60% of the formulation based on total dry ingredients of a first fly ash component having a particle diameter between 1 and 100 microns; and ii)5 to 30 wt% of the formulation based on total dry ingredients of a second fly ash component having a maximum particle size diameter of around 10 microns.
23. A composite product according to any one of the preceding claims, wherein the dewatering agent includes a coarse fraction fly ash having a particle size diameter greater than 100 microns.
24. A composite product according to any one of the preceding claims, wherein the functional layer includes additives to improve the properties of the substrate layer such that upon dewatering of the functional layer, the substrate layer is thus treated with said additive.
25. A method of manufacturing a composite product comprising:
(i) providing a substrate layer, (ii) providing a slurry formulation including an hydraulic binder and dewatering agent, (iii) applying said slurry to said substrate layer to form a functional layer, (iv) dewatering the functional layer, and (v) optionally repeating steps (ii) through (iv), wherein the quantity of dewatering agent is sufficient to maintain porosity and thereby permit de-watering of each functional layer through the substrate layer and any additional functional layer.
26. A method according to claim 25, wherein each functional layer includes one or more functional additives to provide desired properties to that layer.
27. A method according to claim 25 or claim 26, wherein the substrate layer is a fibre reinforced base material.
28. A method according to any one of claims 25 to 27, wherein the substrate layer is a reinforced cementitious product.
29. A method according to any one of claims 25 to 28, wherein the functional layers are added to both sides of the substrate layer.
30. A method according to any one of claims 25 to 29, wherein the functional layers are added to one side of the substrate layer.
31. A method according to any one of claims 25 to 30, wherein each functional layer includes one or more functional additives to provide desired properties to that layer.
32. A method according to any one of claims 25 to 31, wherein each functional layer is covered by a reinforcing layer.
33. A method according to any one of claims 25 to 32, wherein the reinforcing layer comprises fibre mesh or netting.
34. A method according to any one of claims 25 to 33, wherein the reinforcing layer is a fibre reinforced cementitious layer.
35. A method according to any one of claims 25 to 34, wherein the composite product comprises outer layers provided by fibre reinforced cementitious layers with one or more functional layers positioned therebetween.
36. A method according to any one of claims 25 to 35, wherein the functional layers have a low fibre content relative to the fibre reinforced cementitious layers.
37. A method according to any one of claims 25 to 36, wherein additives and/or fillers are incorporated in the functional layers to provide the desired acoustic properties, thermal or fire performance, density modification, cost or production efficiency, compressive or tensile strength, water permeability, density or aesthetic properties to the composite product.
38. A method according to any one of claims 25 to 37, wherein the dewatering agent is provided in a sufficient quantity to maintain porosity in the functional layers and the substrate layer during dewatering.
39. A method according to any one of claims 25 to 38, wherein the dewatering agent is a particulate material.
40. A method according to any one of claims 25 to 39, wherein the dewatering agent is selected from fly ash, alumina trihydrate, silica flour, cenospheres or mixtures thereof.
41. A method according to any one of claims 25 to 40, wherein, after coating, the coated product is cured by air curing, steam curing or hydrothermally cured in an autoclave.
42. A method according to any one of claims 25 to 41, wherein the product to be coated is cementitious building board or product or gypsum building board.
43. A method according to any one of claims 25 to 42, wherein the thickness of the functional layer on the product is between 0.1 and 10 mm.
44. A method according to any one of claims 25 to 43, wherein the hydraulic binder used in the coating is selected from the group consisting of white, grey or pigmented cements, hydraulic limes or mixtures thereof.
45. A method according to any one of claims 25 to 44, wherein the binder in the formulation is between 10 and 50 wt% based on total dry ingredients.
46. A method according to any one of claims 25 to 45, wherein fly ash is the dewatering agent.
47. A method according to any one of claims 25 to 46, wherein the dewatering agent comprises:
i) 10 to 60% of the formulation based on total dry ingredients of a first fly ash component having a particle diameter between 1 and 100 microns; and ii)5 to 30 wt% of the formulation based on total dry ingredients of a second fly ash component having a maximum particle size diameter of around 10 microns.
48. A method according to any one of claims 25 to 47, wherein the dewatering agent includes a coarse fraction fly ash having a particle size diameter greater than 100 microns.
49. A method according to any one of claims 25 to 48, wherein the functional layer includes additives to improve the properties of the substrate layer such that upon dewatering of the functional layer, the substrate layer is thus treated with said additive.
50. A method according to any one of claims 25 to 49, wherein the slurry formulation is applied to the substrate layer by means of splattering.
CA 2439513 2001-03-02 2002-03-04 A composite product Expired - Lifetime CA2439513C (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
AUPR3476A AUPR347601A0 (en) 2001-03-02 2001-03-02 Additive for dewaterable slurry
AUPR3477 2001-03-02
AUPR3474A AUPR347401A0 (en) 2001-03-02 2001-03-02 A composite product
AUPR3476 2001-03-02
AUPR3475 2001-03-02
AUPR3477A AUPR347701A0 (en) 2001-03-02 2001-03-02 A method and apparatus for forming a laminated sheet material by spattering
AUPR3478 2001-03-02
AUPR3474 2001-03-02
AUPR3475A AUPR347501A0 (en) 2001-03-02 2001-03-02 Spattering apparatus
AUPR3478A AUPR347801A0 (en) 2001-03-02 2001-03-02 Coatings for building products
PCT/AU2002/000241 WO2002070247A1 (en) 2001-03-02 2002-03-04 A composite product

Publications (2)

Publication Number Publication Date
CA2439513A1 true CA2439513A1 (en) 2002-09-12
CA2439513C CA2439513C (en) 2011-05-31

Family

ID=27507501

Family Applications (5)

Application Number Title Priority Date Filing Date
CA 2439451 Abandoned CA2439451A1 (en) 2001-03-02 2002-03-01 A method and apparatus for forming a laminated sheet material by spattering
CA 2439425 Expired - Fee Related CA2439425C (en) 2001-03-02 2002-03-01 Spattering apparatus
CA 2439513 Expired - Lifetime CA2439513C (en) 2001-03-02 2002-03-04 A composite product
CA 2439508 Abandoned CA2439508A1 (en) 2001-03-02 2002-03-04 Additive for dewaterable slurry
CA 2439484 Expired - Lifetime CA2439484C (en) 2001-03-02 2002-03-04 Coatings for building products

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CA 2439451 Abandoned CA2439451A1 (en) 2001-03-02 2002-03-01 A method and apparatus for forming a laminated sheet material by spattering
CA 2439425 Expired - Fee Related CA2439425C (en) 2001-03-02 2002-03-01 Spattering apparatus

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA 2439508 Abandoned CA2439508A1 (en) 2001-03-02 2002-03-04 Additive for dewaterable slurry
CA 2439484 Expired - Lifetime CA2439484C (en) 2001-03-02 2002-03-04 Coatings for building products

Country Status (21)

Country Link
US (14) US20020189499A1 (en)
EP (5) EP1370401A4 (en)
JP (5) JP4226331B2 (en)
KR (5) KR100888732B1 (en)
CN (5) CN1254352C (en)
AR (5) AR034210A1 (en)
AT (2) ATE372174T1 (en)
AU (3) AU2002234429B2 (en)
BR (5) BR0207808A (en)
CA (5) CA2439451A1 (en)
CR (3) CR7094A (en)
CZ (5) CZ20032629A3 (en)
DE (2) DE60222245T2 (en)
DK (1) DK1370369T3 (en)
HU (5) HU224885B1 (en)
MX (5) MXPA03007891A (en)
MY (3) MY141057A (en)
NZ (5) NZ528307A (en)
PL (5) PL201390B1 (en)
TW (5) TW529987B (en)
WO (4) WO2002070218A1 (en)

Families Citing this family (123)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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TW574164B (en) 2004-02-01
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ATE459466T1 (en) 2010-03-15
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US20070077436A1 (en) 2007-04-05
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