EP0964956A1 - Feuille papetiere decorative et stratifie decoratif la comportant - Google Patents
Feuille papetiere decorative et stratifie decoratif la comportantInfo
- Publication number
- EP0964956A1 EP0964956A1 EP98940339A EP98940339A EP0964956A1 EP 0964956 A1 EP0964956 A1 EP 0964956A1 EP 98940339 A EP98940339 A EP 98940339A EP 98940339 A EP98940339 A EP 98940339A EP 0964956 A1 EP0964956 A1 EP 0964956A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- decorative
- resin
- impregnated
- weight
- 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
Links
- 229920005989 resin Polymers 0.000 claims abstract description 84
- 239000011347 resin Substances 0.000 claims abstract description 84
- 229920000642 polymer Polymers 0.000 claims abstract description 42
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 55
- 239000000203 mixture Substances 0.000 claims description 44
- 239000000123 paper Substances 0.000 claims description 34
- 239000004408 titanium dioxide Substances 0.000 claims description 27
- 239000011436 cob Substances 0.000 claims description 22
- 229920003169 water-soluble polymer Polymers 0.000 claims description 17
- 229920001577 copolymer Polymers 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- 239000000049 pigment Substances 0.000 claims description 13
- 229920003043 Cellulose fiber Polymers 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 238000005470 impregnation Methods 0.000 claims description 11
- 239000000975 dye Substances 0.000 claims description 10
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- 229920001477 hydrophilic polymer Polymers 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 5
- 239000012736 aqueous medium Substances 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 5
- 239000012209 synthetic fiber Substances 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 229920003176 water-insoluble polymer Polymers 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 4
- 239000007900 aqueous suspension Substances 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 3
- MSYLJRIXVZCQHW-UHFFFAOYSA-N formaldehyde;6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound O=C.NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 MSYLJRIXVZCQHW-UHFFFAOYSA-N 0.000 claims description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
- 239000003605 opacifier Substances 0.000 claims description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 1
- 239000002609 medium Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000003475 lamination Methods 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 7
- 239000007767 bonding agent Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000003039 volatile agent Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- 229920001480 hydrophilic copolymer Polymers 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
- D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
- D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
- D21H17/51—Triazines, e.g. melamine
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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.]
- Y10T428/24777—Edge feature
- Y10T428/24793—Comprising discontinuous or differential impregnation or bond
-
- 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]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/3188—Next to cellulosic
- Y10T428/31895—Paper or wood
-
- 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]
- Y10T428/31971—Of carbohydrate
- Y10T428/31993—Of paper
Definitions
- the invention relates to a decorative paper sheet impregnated with a thermosetting resin. This sheet is used in the manufacture of laminated decorative panels or profiles.
- the invention also relates to the decorative sheets impregnated with a thermosetting resin as well as the decorative laminated panels or profiles comprising it and the methods of manufacturing the sheets.
- the so-called high pressure decorative laminates are produced from a core consisting of sheets impregnated with resin. These sheets are generally made of kraft paper and have been impregnated with a thermosetting resin, most often a phenolic resin. After having impregnated the resin sheets, they are dried, cut, then stacked on top of each other. The number of sheets in the stack depends on the application and varies between 3 and 9, but may be higher.
- a decorative sheet is then placed on the pile of sheets constituting the core.
- a protective overlay sheet called an "overlay”, which is patternless and transparent in the final laminate, is placed above the decorative sheet to improve the abrasion resistance of the laminate.
- the stack of impregnated sheets is then placed in a laminating press, the plates of which are provided with a sheet giving the surface finish to the laminate. Then, the cell is densified by heating, at a temperature of the order of 110 ° C to 170 ° C, and by pressing, at a pressure of the order of 5.5 MPa at 11 Pa, for approximately 25 to 60 minutes, to obtain a unitary structure.
- This structure is then fixed on a base support, for example by bonding it to said support such as a panel of agglomerated particles, in particular of agglomerated wood particles.
- the so-called low pressure decorative laminates are produced using only a decorative sheet impregnated with thermosetting resin, and optionally an overlay sheet, which is laminated directly onto the base support such as a panel during a short cycle, the temperature being around 160 to 175 ° C and the pressure from 1.25 MPa to 3 MPa.
- the impregnable decorative sheet used for the production of laminates is generally a sheet of paper produced on a paper machine and which comprises cellulose fibers and possibly synthetic fibers, the cellulose fibers being distributed, by weight, between 40 to 100%.
- These decorative sheets do not contain a bonding agent nor are they subjected to any surface treatment because they must be very absorbent of the thermosetting resin with which they will be impregnated.
- thermosetting resin but thermally stable (not yellowing), most often with melamine-formaldehyde resins or urea-formaldehyde resins, or sometimes benzoguanamine-formaldehyde resins, unsaturated polyester.
- the impregnated sheet is heated and the resin is partially crosslinked (thermoset) so that the resin is no longer in a tacky state and the sheet can be handled.
- Such a decorative sheet impregnated with partially crosslinked resin is called, in terms of profession, "decor film” or “decorative film or even” melamine film ".
- This second step is generally carried out by bringing the sheet to temperatures of about 110 to 140 ° C.
- the resin once fully thermoset, after lamination, will provide surface resistance to the final laminate (resistance to abrasion, resistance to soiling, water vapor and chemical agents such as solvents, acids and bases, etc.).
- this sheet once laminated, must have a very high light fastness because it is almost permanently exposed to light radiation by its use of surface covering; the compounds which constitute it must therefore be selected so as to obtain this light fastness, preferably greater than or equal to 6 on the blue scale according to ISO standard 4586-2.16.
- this sheet must make it possible to obtain an opaque decorative film after lamination.
- thermoset resin provides.
- the invention aims to solve these problems and therefore aims to provide a decorative paper sheet usable in decorative laminates, said sheet leading to high opacity of the final decorative laminate and making it possible to obtain a decorative laminate without appearance defects.
- the object of the invention is achieved if the paper sheet has a value of the COBB 6 o degree of water absorption of the sheet, determined according to ISO standard 535, less than the grammage of said sheet and this by at most 40% while the sheets according to the prior art and without bonding agent being composed almost essentially of cellulose fibers, always have a COBB 6 o degree of water absorption equal to or greater than their grammage.
- thermosetting resin is distributed uniformly in the sheet and that moreover the absorption capacity of the sheet in thermosetting resin is reduced.
- the invention provides a decorative paper sheet impregnated with a thermosetting resin comprising from 5 to 50% by dry weight relative to the sheet of decorative particles and / or pigment or organic dyes and / or opacifying fillers, in particular titanium dioxide, characterized in that the value of the COBB 6 o degree of water absorption of said sheet, determined according to ISO standard 535 (water, 1 minute, 23 ° C) is less than the grammage of said sheet and this at most 40%, and more particularly at least 5%.
- the value of the COBB 60 degree is 10 to 35% less than the grammage of said sheet.
- the sheet comprises a composition of at least one polymer of hydrophilic nature.
- the hydrophilic nature of the composition can come from the chemical nature of a said polymer itself or from emulsifying agents when said polymer is a non-water-soluble polymer used in the form of an aqueous dispersion.
- hydrophilic nature of said composition or of said polymer is therefore controlled (neither too high nor too low) so as to decrease the COBB 6 o degree of water absorption within the limits mentioned above, namely a reduction in at most 40% relative to the grammage of said sheet.
- compositions or of said polymer also makes it possible to reduce the COBB 6 o degree of water absorption of the sheet, determined according to ISO standard 535 (water, 1 minute, 23 ° C.) and this by at most 35% relative to the COBB 6 o degree of water absorption of the same sheet not containing said composition, preferably at least 5%.
- the present invention therefore also provides a decorative paper sheet impregnated with a thermosetting resin comprising from 5 to 50% of decorative particles and / or pigment and / or organic dyes or opacifying fillers, in particular titanium dioxide, by dry weight per relative to the sheet, characterized in that it comprises a composition of at least one polymer having a hydrophilic character and the COBB60 degree of water absorption of the sheet, determined according to standard ISO 535 is less than at most 35% compared to the COBB60 degree of water absorption of the same sheet not containing said polymer (s).
- the grammage of the sheet containing said polymeric composition is from 50 to 150 g / m 2 , preferably from 60 to 100 g / m 2 .
- the sheet comprises from 4 to 20% by weight of said polymer (s) relative to the sheet, in particular from 2 to 10 g / m2 by dry weight of said polymer (s).
- said composition comprises a non-water-soluble polymer in aqueous dispersion.
- said non-water-soluble polymer is a polymer with a hydrophilic nature.
- water-insoluble polymer of hydrophilic nature mention may be made of polymers chosen from vinyl acetate polymers and in particular copolymers of vinyl acetate and butyl acetate, copolymers of vinyl acetate and ethylene , or the copolymers of acrylic esters, in particular the ethyl acetate copolymers of acrylonitrile and methacrylate or their mixtures.
- non-water-soluble polymers of hydrophilic nature known as a binder, although this is not the intended technical effect according to the present invention, may be compatible with the application according to the present invention, in particular if they do not '' do not affect the good light fastness of the decorative laminate, which is preferably greater than or equal to 6 on the blue scale according to ISO standard - 4586-2.16.
- a polymer composition comprising a mixture of an aqueous dispersion of a water-insoluble polymer and an aqueous solution of a water-soluble polymer, in particular a polyvinyl alcohol polymer.
- the composition can comprise 80 to 95% by dry weight of a water-insoluble polymer and 5 to 20% by dry weight of water-soluble polymer.
- Said water-soluble polymer can contribute to improving the uniformity of the appearance and the water vapor resistance of the final panel and to reducing the time of impregnation of the sheet with the thermosetting resin.
- Said polymer is advantageously introduced into the sheet by an impregnation process in particular using a size press containing said polymer in an aqueous medium. Any other means of application allowing good penetration of the sheet by the polymer can also be used.
- the treatment composition may also contain additives customary in stationery, in particular viscosity regulating agents and anti-foaming agents.
- the dry extract of the composition and its viscosity are adjusted by a person skilled in the art according to the means of application used and the amount of said polymer to be introduced into the sheet.
- said polymer can be added en masse, in the vat of a paper machine.
- the opacifying fillers are titanium dioxide pigments and they are present at a rate of 20 to 45% by dry weight of the sheet, more particularly from 30 to 40%.
- Other white charges can be used like kaolin or talc, either in addition to titanium dioxide or in admixture with pigment dyes.
- the sheet of paper according to the invention comprises:
- the cellulose fibers being distributed by weight between 40 to 100%, preferably 80 to 100%, in short fibers and between 0 to
- the invention also provides a decorative paper sheet impregnated with a partially crosslinked thermosetting resin (decor film) which is characterized in that it comprises said decorative sheet with said polymer and that it contains in thermosetting resin at most 50% of preferably at least 40%, more preferably at least 45% by weight relative to the weight of the sheet impregnated with resin, including volatile compounds.
- a partially crosslinked thermosetting resin decor film
- the decorative sheet impregnated according to the invention can also be characterized in that it contains thermosetting resin at most 50%, preferably at least 40%, more preferably at least 45%, by weight relative to the weight of the sheet. impregnated with resin, including volatile compounds and a titanium dioxide content of less than 40% by dry weight of the sheet, preferably less than 35%, and having an opacity identical to that of a decorative sheet of the same grammage before impregnation with said resin and containing a titanium dioxide content of at least 40% by dry weight of the sheet and more than 50% of said resin relative to the weight of the sheet impregnated with resin, including volatile compounds.
- thermosetting resin is chosen from melamine-formaldehyde resins, urea-formaldehyde resins or from benzoguanamine-formaldehyde resins, unsaturated polyester resins or mixtures thereof.
- the subject of the present invention is also a process for the wet manufacturing of said decorative sheet, which is characterized in that it comprises the following steps:
- a sheet is formed from an aqueous suspension of cellulose fibers and optionally synthetic fibers, and 5 to 50% by dry weight relative to the sheet of decorative particles and / or dyes pigmentary or organic and / or opacifying fillers, in particular titanium dioxide and possibly other additives usually used for these sheets,
- the sheet formed is impregnated, using a size press, with a composition in an aqueous medium containing one or more of said polymers,
- the method comprises the following steps: - on a paper machine, a sheet is formed from an aqueous suspension of cellulose fibers and optionally synthetic fibers, these fibers being distributed between 40 to 100%, preferably 80 to 100%, in short fibers and between 0 to 60%, preferably 0 to 20%, in long fibers, 0.2 to 1%, preferably 0.4 to 0.5%, of a wet strength agent by dry weight relative to the sheet and 5 to 50% by dry weight relative to the sheet of decorative particles and / or pigment or organic dyes and / or opacifying fillers, in particular titanium dioxide and possibly other additives usually used for these sheets,
- the formed sheet is impregnated, using a sizing press, with 4 to 20% by dry weight relative to the sheet, in particular 2 to 10 g / m 2 by dry weight, with a composition in an aqueous medium containing one or more of said polymers, the dry extract of the composition being in particular between 5 and 20% by weight,
- the invention also provides a method of manufacturing a decorative sheet impregnated with a partially crosslinked thermosetting resin (decorative film) which is characterized in that a paper sheet as described above is used, which the 'said sheet is impregnated with a thermosetting resin and the resin is partially crosslinked, the rate of volatile compounds being between 5 and 8% by weight of the sheet.
- the subject of the invention is also a laminated decorative panel or profile which is characterized by the fact that it includes, as a decorative sheet, a sheet as described above.
- this laminated decorative panel or profile is a low pressure laminate which can be produced conventionally as described in the introduction.
- the invention therefore makes it possible to reduce the demand for thermosetting resin and to improve the opacity of the decorative film while retaining satisfactory properties in the final laminate as shown by the following nonlimiting examples:
- Step 1 A sheet of control paper according to the prior art is produced:
- a sheet of paper is produced by mass mixing, with a suspension of cellulose fibers in an aqueous medium, 0.5% relative to the sheet of a wet resistance agent (a resin polyamide-polyamine-epichlorohydrin), titanium dioxide pigments in quantities such that they are present in an amount of approximately 40% in the paper.
- a wet resistance agent a resin polyamide-polyamine-epichlorohydrin
- titanium dioxide pigments in quantities such that they are present in an amount of approximately 40% in the paper.
- the level of dioxide titanium is determined by the ash rate at 800 ° C, titanium dioxide being the only mineral compound therefore incombustible in paper, apart from the residues in the pulp (in very small quantities).
- the sheet is formed and dried.
- Step 2 Using a laboratory impregnator, the sheet is impregnated with a mixture of thermosetting resins (urea-formaldehyde, melamine-formaldehyde) in aqueous solution. Then the resin is crosslinked (thermoset) partially to obtain a resin with a volatile compound content of 6.5% by weight.
- thermosetting resins urea-formaldehyde, melamine-formaldehyde
- the volatile content is determined by heating the sheet impregnated with resin at 160 ° C. for five minutes, it corresponds to the ratio of the difference between the weight of the sheet on leaving the oven and its weight before entering the oven. related to the weight of the sheet before entering the oven.
- Step 3 A laminate is produced in the laboratory by applying the sheet obtained on a particle board and subjecting the assembly to a temperature of 180 ° C. for one minute under a pressure of 2.5 MPa.
- Step 1 a basic sheet of paper is used according to step 1 of Example 1, but it is impregnated in a press-sizing machine with an aqueous composition comprising a polymer of hydrophobic character, used in the form of a stable aqueous dispersion . It is a copolymer of butyl acrylate and styrene. The dry extract of this composition is 10% by weight. The sheet is dried.
- Steps 2 and 3 are carried out as in Example 1.
- step 2 of impregnation with the thermosetting resin the sheet impregnates badly and after step 3 it is found that the laminate obtained has a speckled appearance.
- the degree of water absorption COBB 6 o of the sheet decreased from 73 g / m 2 to 29 g / m 2 , a reduction of 60%; it is significantly lower than that of the control sheet and is therefore too weak for the sheet to impregnate properly and allow decorative panels to be produced with the correct appearance.
- Step 1 a basic sheet of paper is used according to step 1 of Example 1, but it is impregnated in a size presser with an aqueous composition comprising a mixture of an aqueous dispersion of a non-polymer water-soluble hydrophilic in nature, known as a binder, and a solution of polyvinyl alcohol.
- the water-insoluble polymer is a copolymer of vinyl acetate and ethylene.
- the dry extract of this composition is 10% by weight.
- the dry extract of this composition comprises 10% by weight of said water-soluble polymer and 90% by weight of said non-water-soluble polymer.
- the sheet is dried. Then proceed to step 2 of impregnation with the thermosetting resin and to step 3 of lamination as in Example 1.
- Step 1 a basic sheet of paper is used according to step 1 of Example 1, but it is impregnated in a size presser with an aqueous composition comprising a polymer of hydrophilic nature, known as a binder, used under form of a stable aqueous dispersion.
- This polymer is a copolymer of vinyl acetate and butyl acetate.
- the dry extract of this composition is 10% by weight.
- the sheet is dried. Then proceed to step 2 of impregnation with the thermosetting resin and to step 3 of lamination as in Example 1.
- Step 1 a basic sheet of paper is used according to step 1 of Example 1, but it is impregnated in a press-sizing machine with an aqueous composition
- an aqueous composition comprising a mixture of an aqueous dispersion of a non-water-soluble polymer with character hydrophilic, known as a binder and an aqueous solution of polyvinyl alcohol.
- This non-water-soluble polymer is a copolymer of acrylic esters (copolymers of ethyl acetate, acrylonitrile and a methacrylate).
- the dry extract of this composition is 10% by weight.
- the dry extract of this composition comprises 10% by weight of said water-soluble polymer and 90% by weight of said non-water-soluble polymer.
- the sheet is dried.
- step 2 of impregnation with the thermosetting resin proceed to step 3 of lamination as in Example 1.
- Step 1 a basic sheet of paper is taken up according to step 1 of Example 1, but it is impregnated in a press-sizing machine with an aqueous composition comprising a polymer with a very hydrophilic character. It is a poly (vinyl alcohol) in aqueous solution. The dry extract of this composition is 10% by weight.
- the sheet is dried.
- Steps 2 and 3 are carried out as in Example 1.
- the COBB o0 water absorption degree of the sheet is greater than its grammage and increased compared to the COBB 60 degree of the control.
- Example 8 is carried out according to Example 3 with the same aqueous composition of the hydrophilic copolymer of vinyl acetate and of ethylene and of the polyvinyl alcohol polymer.
- Example 7 control is a paper produced under the conditions of Example 1. The data and the results of the tests relating to these examples are presented in Table 2.
- Example 8 treated with a hydrophilic polymer shows that the resin demand is reduced for the sheet treated with a hydrophilic polymer compared to the untreated sheet, the opacity having moreover been improved.
- example 8 treated with the hydrophilic polymer with control example 7 shows that with a comparable grammage, less titanium dioxide is used per square meter while having a comparable opacity.
- Treatment with the hydrophilic polymer therefore makes it possible to reduce the demand for resin in a sheet and the rate of titanium dioxide while obtaining a decorative film having good opacity after lamination and a laminate of uniform appearance. Furthermore, the surface resistance characteristics of the laminate remained at a good level.
- the grammage of the sheets is determined according to ISO standard 536 after packaging according to ISO standard 187. This is the grammage of the sheet treated with said polymer but before impregnation of the resin.
- the degree of water absorption, noted COBB o0 is determined according to ISO standard 535 (1 minute, water, 23 ° C).
- the Delta (COBB ⁇ o -Grammage), expressed in percent, corresponds to the difference between the COBB ⁇ o degree of a sample and the grammage of the same sample, divided by this grammage.
- the Delta (COBB ⁇ O - Control ), expressed in percent, corresponds to the difference between the COBB 6 o degree of a sample, before and after treatment with said polymer, divided by the COBB 6 o degree of the untreated sheet ( witness).
- the recovery is the dry recovery, that is to say the amount of the composition of the said polymer with which the sheet has been impregnated and expressed in dry weight of the composition (in grams) per square meter of the sheet.
- Air permeability, Gurley porosity method is determined according to ISO 5636-5R (1990).
- the resin demand is the quantity of thermosetting resin necessary to introduce into the sheet to obtain, after laminating on a panel, a graphite test greater than or equal to 4.5. This demand is expressed in percent and represents the ratio of the weight of absorbed thermosetting resin to the weight of the sheet impregnated with the resin, the resin containing 6.5% of volatiles.
- the graphite test is carried out as follows: powdered graphite is mixed with an oil so as to form a paste. This paste is spread on the visible face of the decor film. The panel is then cleaned with a damp sponge impregnated with a detergent. The cleaned surface is compared with a control scale. The scale goes from 1 to 6, 1 being the lowest note. The minimum acceptable score is estimated to be 4.5.
- This graphite test makes it possible to assess the porosity of the decorative film after lamination and therefore its resistance to soiling. This characteristic depends on several parameters including the rate of volatiles in the resin, the stratification, the decorative sheet.
- the present invention provides laminates with a score of at least 5 on the Graphite Test scale.
- the opacity is determined on the visible face of the decorative film as follows: on an ELREPHO 2000 spectrophotometer, under the illuminant C and under an observation angle of 10 degrees, the reflection coefficient of the laminated decorative film Ro and the reflection coefficient R ⁇ of four films laminated on the panel which give total opacity.
- the opacity of the sample is given by the ratio between these two coefficients Ro / R ⁇ and is expressed in percent.
- the present invention provides decorative sheets having an opacity greater than or equal to about 90%.
- the appearance of the laminate is assessed visually on a scale of 1 to 5, note 1 corresponding to a very bad appearance (speckled) and note 5 has a perfectly uniform appearance.
- the present invention provides appearance laminates with a score greater than or equal to 3.5.
- Lightfastness produced according to ISO 4586-2.16 according to the blue scale.
- the present invention provides decorative sheets which, when laminated, have a light fastness greater than or equal to 6 on the blue scale.
- the steam test carried out according to BS 7331 according to a scale of scores from 1 to 5, the score 1 corresponding to the presence of blisters and the score of 5 to no alteration.
- the present invention provides decorative sheets with a score greater than or equal to 3.
- the abrasion resistance of the laminates according to the invention is not altered or very little altered. There are no cracks on their surface and they have good resistance to pulling out.
Landscapes
- Laminated Bodies (AREA)
- Paper (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09152072A EP2050870A1 (fr) | 1997-12-02 | 1998-07-27 | Procédé de fabrication d'une feuille papetière décorative à capacité d'absorption en résine réduite. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9715171A FR2771759B1 (fr) | 1997-12-02 | 1997-12-02 | Feuille papetiere decorative et stratifie decoratif la comportant |
FR9715171 | 1997-12-02 | ||
PCT/FR1998/001650 WO1999028554A1 (fr) | 1997-12-02 | 1998-07-27 | Feuille papetiere decorative et stratifie decoratif la comportant |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09152072A Division EP2050870A1 (fr) | 1997-12-02 | 1998-07-27 | Procédé de fabrication d'une feuille papetière décorative à capacité d'absorption en résine réduite. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0964956A1 true EP0964956A1 (fr) | 1999-12-22 |
EP0964956B1 EP0964956B1 (fr) | 2009-05-06 |
Family
ID=9514062
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09152072A Withdrawn EP2050870A1 (fr) | 1997-12-02 | 1998-07-27 | Procédé de fabrication d'une feuille papetière décorative à capacité d'absorption en résine réduite. |
EP98940339A Expired - Lifetime EP0964956B1 (fr) | 1997-12-02 | 1998-07-27 | Feuille papetiere decorative a capacite d'absorption en resine reduite et stratifie la comportant |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09152072A Withdrawn EP2050870A1 (fr) | 1997-12-02 | 1998-07-27 | Procédé de fabrication d'une feuille papetière décorative à capacité d'absorption en résine réduite. |
Country Status (11)
Country | Link |
---|---|
US (1) | US6709764B1 (fr) |
EP (2) | EP2050870A1 (fr) |
AT (1) | ATE430836T1 (fr) |
CA (1) | CA2279395C (fr) |
DE (2) | DE09152072T1 (fr) |
ES (1) | ES2326290T3 (fr) |
FR (1) | FR2771759B1 (fr) |
HU (1) | HUP0001788A3 (fr) |
PL (1) | PL195668B1 (fr) |
PT (1) | PT964956E (fr) |
WO (1) | WO1999028554A1 (fr) |
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US8221895B2 (en) | 2007-12-21 | 2012-07-17 | Technocell Dekor Gmbh & Co. Kg | Base paper for decorative coating materials |
US8460767B2 (en) | 2007-12-17 | 2013-06-11 | Schoeller Technocell Gmbh & Co. Kg | Compressible decorative paper impregnating agent which can be printed by the inkjet method |
WO2020084146A1 (fr) | 2018-10-26 | 2020-04-30 | Ahlstrom-Munksjö Oyj | Papier décoratif filigrané |
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ES2168045B2 (es) * | 1999-11-05 | 2004-01-01 | Ind Aux Es Faus Sl | Nuevo suelo laminado directo. |
US6691480B2 (en) * | 2002-05-03 | 2004-02-17 | Faus Group | Embossed-in-register panel system |
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WO2004061013A2 (fr) * | 2002-12-30 | 2004-07-22 | E. I. Du Pont De Nemours And Company | Procede de fabrication d'un pigment de dioxyde de titane hydrosoluble utilisable dans des stratifies de papier |
US20060005498A1 (en) * | 2004-07-07 | 2006-01-12 | Vincente Sabater | Flooring system having sub-panels with complementary edge patterns |
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US8043715B2 (en) * | 2005-06-07 | 2011-10-25 | E. I. Du Pont De Nemours And Company | Paper and paper laminates containing modified titanium dioxide |
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US7601212B2 (en) | 2005-08-29 | 2009-10-13 | E.I. Du Pont De Nemours And Company | Pigment particles coated with polysaccharides and having improved properties |
US20070068423A1 (en) * | 2005-09-27 | 2007-03-29 | Thiele Erik S | Titanium dioxide pigment useful in paper laminates |
US7824486B2 (en) * | 2005-09-27 | 2010-11-02 | E. I. Du Pont De Nemours And Company | Paper laminates |
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DE102010035436A1 (de) * | 2010-08-26 | 2012-03-01 | Interprint Gmbh | Verfahren zur Herstellung von Dekorpapier, sowie Papiergerüst zur Herstellung von Dekorpapier |
WO2012065230A1 (fr) | 2010-11-19 | 2012-05-24 | Depco-Trh Pty Ltd | Produits de décoration et produits de construction à opacité améliorée |
AU2012249899B2 (en) | 2011-04-28 | 2016-07-28 | E. I. Du Pont De Nemours And Company | Treated inorganic pigments having improved bulk flow and their use in paper slurries |
US9115470B2 (en) | 2011-06-28 | 2015-08-25 | The Chemours Company Tt, Llc | Treated inorganic pigments having reduced photoactivity and anti-microbial properties and their use in paper slurries |
WO2013062779A1 (fr) | 2011-10-28 | 2013-05-02 | E. I. Du Pont De Nemours And Company | Particules de cœur inorganiques traitées ayant une aptitude à la dispersion améliorée |
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WO2013062781A1 (fr) | 2011-10-28 | 2013-05-02 | E. I. Du Pont De Nemours And Company | Pigments inorganiques traités présentant une dispersibilité améliorée et utilisation associée dans des compositions de revêtement |
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PL3034572T3 (pl) | 2014-12-16 | 2018-11-30 | Agfa Nv | Wodne tusze do druku natryskowego |
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US11425277B2 (en) | 2017-10-02 | 2022-08-23 | Agfa Nv | Method of manufacturing decorative panels |
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EP3536511A1 (fr) | 2018-03-09 | 2019-09-11 | Agfa Nv | Procédé de fabrication de panneaux décoratifs |
CN112823505B (zh) | 2018-10-17 | 2023-11-28 | 爱克发有限公司 | 渐变色图案的颜色映射方法 |
US11946804B2 (en) | 2018-10-17 | 2024-04-02 | Agfa Nv | Method of fast spectral color measuring |
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EP4001370B1 (fr) | 2020-11-20 | 2024-08-07 | Agfa Nv | Encres aqueuses pour jet d'encre et procédés d'impression à jet d'encre |
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1997
- 1997-12-02 FR FR9715171A patent/FR2771759B1/fr not_active Expired - Lifetime
-
1998
- 1998-07-27 EP EP09152072A patent/EP2050870A1/fr not_active Withdrawn
- 1998-07-27 AT AT98940339T patent/ATE430836T1/de active
- 1998-07-27 ES ES98940339T patent/ES2326290T3/es not_active Expired - Lifetime
- 1998-07-27 EP EP98940339A patent/EP0964956B1/fr not_active Expired - Lifetime
- 1998-07-27 DE DE09152072T patent/DE09152072T1/de active Pending
- 1998-07-27 HU HU0001788A patent/HUP0001788A3/hu unknown
- 1998-07-27 US US09/355,320 patent/US6709764B1/en not_active Expired - Lifetime
- 1998-07-27 PT PT98940339T patent/PT964956E/pt unknown
- 1998-07-27 DE DE69840806T patent/DE69840806D1/de not_active Expired - Lifetime
- 1998-07-27 WO PCT/FR1998/001650 patent/WO1999028554A1/fr active Application Filing
- 1998-07-27 PL PL98334832A patent/PL195668B1/pl unknown
- 1998-07-27 CA CA002279395A patent/CA2279395C/fr not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO9928554A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8460767B2 (en) | 2007-12-17 | 2013-06-11 | Schoeller Technocell Gmbh & Co. Kg | Compressible decorative paper impregnating agent which can be printed by the inkjet method |
US8221895B2 (en) | 2007-12-21 | 2012-07-17 | Technocell Dekor Gmbh & Co. Kg | Base paper for decorative coating materials |
WO2020084146A1 (fr) | 2018-10-26 | 2020-04-30 | Ahlstrom-Munksjö Oyj | Papier décoratif filigrané |
FR3087795A1 (fr) | 2018-10-26 | 2020-05-01 | Ahlstrom-Munksjo Oyj | Papier decor filigrane |
Also Published As
Publication number | Publication date |
---|---|
PT964956E (pt) | 2009-07-20 |
PL334832A1 (en) | 2000-03-27 |
US6709764B1 (en) | 2004-03-23 |
CA2279395A1 (fr) | 1999-06-10 |
WO1999028554A1 (fr) | 1999-06-10 |
DE69840806D1 (de) | 2009-06-18 |
CA2279395C (fr) | 2008-05-27 |
ES2326290T3 (es) | 2009-10-06 |
PL195668B1 (pl) | 2007-10-31 |
EP0964956B1 (fr) | 2009-05-06 |
HUP0001788A3 (en) | 2003-10-28 |
EP2050870A1 (fr) | 2009-04-22 |
DE09152072T1 (de) | 2009-12-17 |
HUP0001788A2 (hu) | 2001-01-29 |
ATE430836T1 (de) | 2009-05-15 |
FR2771759B1 (fr) | 1999-12-31 |
FR2771759A1 (fr) | 1999-06-04 |
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