WO2003002627A1 - Hitzehärtbare zwei-komponenten-beschichtungssysteme - Google Patents
Hitzehärtbare zwei-komponenten-beschichtungssysteme Download PDFInfo
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- WO2003002627A1 WO2003002627A1 PCT/EP2002/006648 EP0206648W WO03002627A1 WO 2003002627 A1 WO2003002627 A1 WO 2003002627A1 EP 0206648 W EP0206648 W EP 0206648W WO 03002627 A1 WO03002627 A1 WO 03002627A1
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- 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
- B32B27/08—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 of synthetic resin
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- 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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- 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
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
- B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/222—Catalysts containing metal compounds metal compounds not provided for in groups C08G18/225 - C08G18/26
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0246—Acrylic resin fibres
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
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- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/18—Fabrics, textiles
- B32B2305/188—Woven fabrics
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2317/00—Animal or vegetable based
- B32B2317/08—Natural leather
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- 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
- B32B2317/00—Animal or vegetable based
- B32B2317/10—Natural fibres, e.g. wool, cotton
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2317/00—Animal or vegetable based
- B32B2317/18—Cellulose, modified cellulose or cellulose derivatives, e.g. viscose
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- 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
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
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- 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
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
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- B32B2377/00—Polyamides
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- 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]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
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- 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]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31558—Next to animal skin or membrane
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- 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]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31591—Next to cellulosic
Definitions
- the invention relates to reactive mixtures based on NCO prepolymers and polyol chain extenders, which are distinguished by a long pot life at room temperature and by a high reactivity at elevated temperatures, a process for their preparation and their use for coating substrates.
- Solvent-free or low-solvent two-component coating systems based on NCO prepolymers are known. These are reactive mixtures, e.g. from functionalized prepolymers and crosslinkers with low proportions of organic solvents. These "high-solid systems" then polymerize under the processing conditions and form a urethane film. Isoyanate components are used in these systems, the terminal isocyanate groups of which are reversibly protected by blocking agents, such as 2-butanone oxime. The curing is then carried out by heat treatment Cleavage of the ketoxime and optionally evaporation of the solvent Reactive compositions of this type for the coating of flexible substrates are described, for example, in DE-A 29 02 090.
- Blocking agent remain in the resulting coating and cause an unpleasant smell of the product.
- 2-butanone oxime also poses a health risk due to its toxicological properties. Exhaust air treatment is therefore necessary even if the systems do not contain any solvents.
- Another disadvantage of blocking the free NCO groups is that this leads to additional urethane groups and thus to an increase in the viscosity of the compositions, which in most cases has to be compensated for by adding solvents.
- DE-A 196 32 925 discloses a system consisting of an aliphatic NCO prepolymer and a dispersed solid diol which is reacted with a sulfur-poisoned tin catalyst.
- Such a system is complicated to prepare and the choice of polyols is restricted, since certain grain size profiles have to be adhered to during grinding and the dispersion has to be stabilized by various additives.
- organic solvents must be used.
- DE-A 199 31 323 describes composite structures with one or more polyurethane layers.
- the reactive coating slips used there consist of polyols and NCO crosslinkers, the reaction being catalyzed by nickel acetylacetonate.
- the problem here is that the use of larger amounts of this toxicologically unsafe catalyst severely limits the applicability of the coating compositions.
- thermosetting two-component coating compositions which do not have the disadvantages of the prior art described above.
- a new catalyst system should be found which has a sufficiently high latency at room temperature, with increased latency Temperature is sufficiently reactive, toxicologically and ecologically largely harmless and colorless and soluble in small amounts of organic solvents.
- the simplest possible manufacture of the coating systems should be ensured.
- thermosetting two-component (2K) coating compositions containing
- compositions according to the invention are preferably contained
- Coating compositions according to the invention containing 80 to 99 parts by weight of A), 1 to 5 parts by weight of B) and 0.05 to 1.0 parts by weight of C) are particularly preferred, with the stipulation that the sum of the components gives 100 ,
- the equivalent ratio of the free NCO groups from A) to the NCO-reactive groups from B) is 0.90 to 1.35, preferably 1 to 1.25.
- average molecular weights are understood as molecular weights determined as number average.
- A) have a number average molecular weight of 500 to 10,000, preferably 700 to 8,000.
- the NCO prepolymers have an NCO content of 1 to 8% by weight, preferably 2 to 4% by weight.
- Suitable NCO prepolymers A) are prepared by reacting monomeric organic polyisocyanates a) with NCO-reactive compounds b).
- Aromatic, aliphatic and cycloaliphatic polyisocyanates come into consideration as organic polyisocyanates a).
- Suitable polyisocyanates a) are compounds of the formula Q (NCO) n with an average molecular weight below 800, where n is a
- Aliphatic and / or cycloaliphatic diisocyanates are preferred, and 4,4'-diisocyanatodicyclohexylmethane is particularly preferably used as the only polyisocyanate.
- 4,4'-Diisocyanatodicyclohexylmethane is used in the form of the technical product with 10 to 50, preferably 15 to 25 wt .-% trans / trans ⁇ '- Diisocyanatodicyclohexylmethane.
- Suitable NCO-reactive compounds b) are especially polyols, such as Polyether polyols, polyester polyols, polycarbonate polyols and polyhydric alcohols. High molecular weight and, to a lesser extent, low molecular weight hydroxyl compounds can be used as polyols.
- Higher molecular hydroxyl compounds include the hydroxypolyesters, hydroxypolyethers, hydroxypolythioethers, hydroxypolyacetals, hydroxypolycarbonates, dimer fatty alcohols and / or ester amides customary in polyurethane chemistry, each with average molecular weights of 400 to 8,000, preferably those with average molecular weights of 500 to 6,500 Preferred higher molecular weight hydroxyl compounds are hydroxypolyethers, hydroxypolyesters and hydroxypolycarbonates.
- polyols customary in polyurethane chemistry with molecular weights from 62 to 399, such as ethylene glycol, triethylene glycol, tetraethylene glycol, 1,2-and 1,3-propanediol, 1,4-butanediol and 1,3, hexanediol- 1,6, octanediol-1,8, neopentyl glycol, 1,4-bis (hydroxymethyl) cyclohexane,
- Suitable polyether polyols are the polyethers customary in polyurethane chemistry, e.g. the addition or mixed addition compounds of tetrahydrofuran, styrene oxide, ethylene oxide, propylene oxide, butylene oxides or epichlorohydrin, in particular prepared using amine to hexavalent starter molecules such as water or the above-mentioned polyols or amines having 1- to 4-NH bonds Ethylene oxide and / or propylene oxide.
- Suitable polyester polyols are e.g. Reaction products of polyhydric, preferably dihydric and optionally additionally trihydric alcohols with polybasic, preferably dibasic carboxylic acids.
- the corresponding polycarboxylic acid anhydrides or corresponding polycarboxylic acid esters of lower alcohols or their mixtures can also be used to prepare the polyesters.
- the polycarboxylic acids can be aliphatic, cycloaliphatic aromatic and / or heterocyclic in nature and optionally e.g. be substituted by halogen atoms and / or unsaturated. Examples include adipic acid, phthalic acid, isophthalic acid, succinic acid, suberic acid,
- the polyols mentioned above are suitable as polyhydric alcohols.
- the polycarbonate polyols in question can be obtained by reacting carbonic acid derivatives, for example diphenyl carbonate, dimethyl carbonate or phosgene, with diols.
- diols are ethylene glycol, triethylene glycol, tetraethylene glycol, 1,2-and 1,3-propanediol, 1,4-and 1,3-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1-octanediol , 8, neopentylgkylol, 1,4-bis (hydroxymethyl) cyclohexane, bis- (hydroxymethyl) tricyclo [5.2.1.0 26 ] decane or 1,4-bis (2-hydroxyethoxy) benzene, 2-methyl-1,3 propanediol, 2,2,4-trimethylpentanediol, dipropylene glycol, polypropylene glycols, dibutylene glycol, polybuty
- the diol component preferably contains 40 to 100% by weight of hexanediol, preferably 1,6-hexanediol and / or hexanediol derivatives, preferably those which, in addition to terminal OH groups, are ether or
- Have ester groups e.g. Products obtained by reacting 1 mole of hexanediol with at least 1 mole, preferably 1 to 2 moles of caprolactone according to DE-A 1 770 245, or by etherification of hexanediol with itself to give di- or trihexylene glycol.
- the preparation of such derivatives is e.g. known from DE-A 1 570 540.
- Polycarbonate diols can be used very well.
- the hydroxypolycarbonates should be essentially linear. However, they can also be easily branched if appropriate by incorporating polyfunctional components, in particular low molecular weight polyols. For example, are suitable for this Trimethylolpropane, hexanetriol-1,2,6, glycerin, butanetriol-1,2,4, pentaerythritol, quinite, mannitol, sorbitol, methylglycoside and 4,3,6-dianhydrohexite.
- aliphatic diisocyanates as component a) and polyether diols and polyether triols as component b) is preferred for the preparation of the NCO prepolymers A).
- polyether diols and polyether triols as component b) are preferred for the preparation of the NCO prepolymers A).
- 4,4'-diisocyanatodicyclohexylmethane is particularly preferred.
- Component A) can be prepared in a manner known per se (e.g. Lit. J.H Saunders, K.C. Frisch; Polyurethanes, Chemistry and Technology / TI.
- Component A) can be mixed with up to 20% by weight, based on the NCO prepolymer, of organic solvents in order to set the optimum processing viscosity of 20,000 to 40,000 mPa-s at 20 ° C.
- the solvent-free variant is preferred.
- the chain extender B) contained in the compositions according to the invention contains at least 50, preferably at least 80 equivalent%, based on the NCO-reactive groups of the chain extender, of compounds of the formula (I),
- X represents a -C-C ⁇ o-alkyl, d-CirCycloalkyl-, dC 12 aryl, d-Cio-alkenyl, d- C ⁇ 2 aralkyl or C ⁇ -C 12 alkyl ether group.
- Preferred chain extenders B) are compounds of the general formula (I) which are liquid at room temperature or which give very concentrated solutions in very little solvent, 1,4-butanediol being particularly preferred.
- the catalyst C) contained in the composition according to the invention contains identical or different 1,3-dicarbonylate anions of the general formula (II),
- R and R stand for the same or different groups R or OR, where
- R 3 represents a C 1 -C 20 alkyl, Q-Cu cycloalkyl, dC 12 aryl, dC 20 alkenyl, d-C ⁇ aralkyl or dC 12 alkyl ether group.
- Preferred radicals R 1 and R 2 are methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl, tert-butyl, phenyl, methoxy, ethoxy, propoxy, isopropoxy, butoxy, sec-butoxy, isobutoxy, tert .-Butoxy, benzoxy and allyloxy.
- R 1 and R 2 can be the same or different.
- R 1 and R 2 are the radicals methyl, tert-butyl, methoxy and ethoxy, which can likewise be the same or different.
- the counter ion is selected from the group of metal cations with the electron configuration d ° of the 3rd subgroup and the lanthanoids, such as scandium (HI), yttrium (i ⁇ ), lanthanum (IH) , Cerium (III), Praeseodymium (IH), Neodymium (i ⁇ ), Samarium (i ⁇ ), Europium (IIT), Gadolinium ( ⁇ i), Terbium (i ⁇ ), Dysprosium (HI), Holmium ( ⁇ i), Erbium (III) , Thulium ( ⁇ i), ytterbium (III) and luthetium (III).
- the lanthanoids such as scandium (HI), yttrium (i ⁇ ), lanthanum (IH) , Cerium (III), Praeseodymium (IH), Neodymium (i ⁇ ), Samarium (i ⁇ ), Europium (IIT), Gadolinium ( ⁇ i), Terbium (i ⁇ ), Dyspro
- the metal cation is selected from the group of metal oxocations of the 6th subgroup with the electron configuration d °.
- Metal oxocations are, for example, Cr (VI) O 2 , Mo (VI) O 2 and W (VI) O 2 .
- catalysts C) are selected from the group Y (acac) 3 • x H 2 O, La (acac) 3 • x H 2 O and MoO 2 (acac) 2 • x H 2 O with x equal to 0 to 3.
- the catalyst C) has a high solubility in organic systems, colorlessness, stability and a largely ecological and toxicological harmlessness.
- the coating compositions according to the invention are characterized in that, owing to the special properties of the catalyst, the liquid chain extenders which are otherwise reactive, such as 1,4-butanediol, can also be used.
- the system remains largely stable at room temperature, and there is hardly any reaction. The reaction with the isocyanate prepolymer only takes place very quickly at temperatures above 160 ° C.
- the present invention furthermore relates to a process for producing the coating compositions according to the invention, characterized in that components A), B) and C) are mixed directly with one another.
- the liquid component can be a solvent or component B) if it is in liquid form.
- the optionally solid component C) is in a liquid component B), such as 1,4-butanediol, dissolved. It is expedient to add 5 to 20% by weight of a solvent in order to prevent the catalyst C) from freezing out at temperatures below the melting point of B). Mixture BC) is then mixed with A).
- a liquid component B such as 1,4-butanediol
- Such a mixture of dissolved component C) generally consists of 1 to 50, preferably 10 to 20% by weight of compound C) and 50 to 99, preferably 80 to 90% by weight of liquid component (solvent or component B) ,
- the mixing of the NCO prepolymer A) with the chain extender component B) is generally carried out in the ratio of the equivalent weights of these components, preferably an NCO to OH equivalent ratio of 0.90 to 1.35, particularly preferably from 1.0 to 1, 25th Common higher-boiling organic substances such as dimethylacetamide, l-methoxy-2-propyl acetate or 2-methylpyrrolidone can be used as solvents.
- the coating compositions according to the invention have a “pot life” of at least 4, preferably at least 8 hours. “Pot life” means the time period from the addition of the chain extender B) and the catalyst C) to the prepolymer
- Auxiliaries and additives such as e.g. Pigments, UV stabilizers, leveling agents, antioxidants, fillers or blowing agents can be added.
- compositions of the invention can be used for coating any of the coating compositions of the invention.
- the coating compositions according to the invention can be processed in any conceivable way, e.g. by casting or pressing, but preferably by spreading on a substrate in thin layers according to the direct coating method.
- the reverse coating process is preferred on textiles and leather.
- the invention also relates to a method for direct or reverse coating of substrates by means of heat-curable coating systems as a top coat, adhesive coat, intermediate coat or foam coat, characterized in that the coating compositions according to the invention are used.
- Preferred substrates are textiles or leather.
- Suitable textiles are, for example, fabrics made of cotton, polyester / cotton, rayon, polyamide fibers, polyester fibers, polypropylene fibers and glass fibers as well as knitwear and knitwear made of polyamide fibers, polyester fibers, cotton wool, blends of cotton with polyester and polyamide as well as polyamide / viscose fibers and polyamide-Z-polyurethane fibers and nonwovens made of synthetic fibers such as polyester, polyamide, polypropylene and acrylic fibers, rayon and their blends. Microfibers are also suitable as materials to be coated.
- the coating is heated to a temperature at which the crosslinking to the polyurethane takes place.
- the curing time is 2 to 18, preferably up to 10 minutes.
- Curing time is understood to mean the time that a 100 ⁇ m thick layer of the coating composition has to be subjected to a gradual heat treatment of 80, 120 and 160 ° C of one third of the total time in order to form a coherent polymer film with an almost constant 100% modulus (according to DIN 53 504); "Almost constant" in this context means that the 100% module is one
- Polymer film which is heated immediately after the curing time at 160 ° C for a further third of the total curing time at 160 ° C, from that of the polymer film produced as described above does not differ by more than 5%.
- the short curing time makes it possible to coat at high speed.
- a particular advantage is that the coatings can be welded both thermally and by means of high frequency due to their melting behavior below 200 ° C.
- a reverse coating can be produced, for example, by first placing it on a suitable intermediate carrier, e.g. a release paper, the composition according to the invention for the top coat in an amount of 30 to
- Impranil ® EWN 13 LN (Bayer AG, Leverkusen) also in an amount of 30 to 100 g / m 3 , laminated the substrate, the coating in a further drying tunnel at 120 to 190 ° C, preferably at 140 to 170 ° C hardens and peels the coated substrate from the release liner.
- Impranil ® EWN 13 LN (Bayer AG, Leverkusen) also in an amount of 30 to 100 g / m 3 , laminated the substrate, the coating in a further drying tunnel at 120 to 190 ° C, preferably at 140 to 170 ° C hardens and peels the coated substrate from the release liner.
- the coating compositions of the invention can also be applied directly to the textile substrate using the direct coating process.
- the release-free and solvent-free or low-solvent character of the coating compositions according to the invention is of great advantage in the production of thick tarpaulin coatings. With application quantities of 100 to 200 g / m, technical coatings up to 0.4 mm thick can be created in just one work step.
- blowing agents and foam stabilizers can be added. Suitable additives are e.g. in DE-A 1 794006 and in US-A 3,262,805.
- the invention also relates to composite structures containing the coating compositions according to the invention and at least one substrate.
- the prepolymer has a viscosity of 14,000 mPa-s at 23 ° C, a certain NCO content of 2.66% by weight and thus an equivalent weight of
- the polyethers are produced in a well-known KOH catalytic manner, e.g. according to L.E.St. Pierre, Polyethers Part I, Polyalkylene Oxide and other Polyethers, Editor: Norman G. Gaylord; High Polymers Vol. XHI; Interscience Pubüshers; Newark 1963;
- the excess 4,4'-diisocyanatodicyclohexylmethane is removed by thin film evaporation at 150 to 180 ° C and a pressure of 0.1 mbar.
- the prepolymer has a viscosity of 17,000 mPa-s at 23 ° C, a titrated NCO content of 4.14% by weight and thus an NCO equivalent weight of 1,014.
- Dry 1,4-butanediol can be used directly.
- prepolymer AI 100 g of prepolymer AI are mixed with 2.8 g of component B), 2.33 g of component C) and 1 g Levacast ® Fl.SN (Bayer AG, Leverkusen, Germany) and 2 g Irganox ® 1010 (Ciba Specialty Chemicals, Basel ) mixed.
- the mixture has an initial viscosity of approximately 15,000 mPa ⁇ s, measured at 23 ° C, and a pot life of 24 hours.
- the mixture is hardened by gradual heat treatment (3 minutes at 80 ° C, 3 minutes at 120 ° C and 3 minutes at 160 ° C).
- An elastic, homogeneous film with good mechanical properties is obtained:
- this example can also be carried out by mixing 100 g of prepolymer AI) with 3.3 g of component BC).
- 100 g of prepolymer A2) are mixed with 3.52 g of component B), 2.33 g of component C and 1 g of Levacast ® Fl.SN (Bayer AG, Leverkusen) and 2 g of Irganox ® 1010 (Ciba Specialty Chemicals, Basel) mixed.
- the mixture has an initial viscosity of about 15,000 mPas, measured at 23 ° C, and a pot life of 8 hours.
- the mixture is hardened by gradual heat treatment (3 minutes at 80 ° C, 3 minutes at 120 ° C and 3 minutes at 160 ° C).
- An elastic, homogeneous film with excellent mechanical properties is obtained: Modulus (100%) 2.7 MPa
- 100 g of the prepolymer A3) are mixed with 4.43 g of component B), 2.33 g of component C) and 1 g of Levacast ® Fl.SN (Bayer AG, Leverkusen) and 2 g of Irganox ®
- the adhesive paste consists of the commercial product Impranil ® EWN 13 solution N (Bayer AG, Leverkusen) and for the top coat paste the recipe listed in Example 1 is combined with 10% by weight of a commercially available pigment abrasion, 1% by weight of silicone oil and 25% by weight of a filler are used, for example calcium carbonate, aluminum oxide or magnesium oxide.
- the above top layer paste is applied in an application quantity of 80 g / m 2 using a roller doctor
- Release paper applied and cured in a drying tunnel at 180 ° C for three minutes.
- the above adhesive coating paste is applied to the hardened top coat in an amount of 40-50 g / m 2 on the second coating unit.
- the textile web is then laminated on in the form of a roughened cotton product.
- the temperature profile increases to max. 150 ° C the adhesive line dried within 3 minutes.
- the coating has a Shore A 70 surface hardness and has good kink resistance and good lightfastness.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Ceramic Engineering (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU0401246A HUP0401246A2 (hu) | 2001-06-29 | 2002-06-17 | Hővel kikeményíthető kétkomponensű bevonórendszerek |
EP02751032A EP1404735A1 (de) | 2001-06-29 | 2002-06-17 | Hitzehärtbare zwei-komponenten-beschichtungssysteme |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10131463.9 | 2001-06-29 | ||
DE10131463A DE10131463A1 (de) | 2001-06-29 | 2001-06-29 | Hitzehärtbare Zwei-Komponenten-Beschichtungssysteme |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003002627A1 true WO2003002627A1 (de) | 2003-01-09 |
Family
ID=7689954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/006648 WO2003002627A1 (de) | 2001-06-29 | 2002-06-17 | Hitzehärtbare zwei-komponenten-beschichtungssysteme |
Country Status (6)
Country | Link |
---|---|
US (1) | US6642342B2 (de) |
EP (1) | EP1404735A1 (de) |
AR (1) | AR034620A1 (de) |
DE (1) | DE10131463A1 (de) |
HU (1) | HUP0401246A2 (de) |
WO (1) | WO2003002627A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3628694A1 (de) | 2018-09-26 | 2020-04-01 | Covestro Deutschland AG | Lösemittelarme beschichtungssysteme für textilien |
WO2020156937A1 (de) | 2019-01-29 | 2020-08-06 | Covestro Intellectual Property Gmbh & Co. Kg | Isocyanatterminierte präpolymere für textilbeschichtungen |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004042843A1 (de) * | 2004-09-04 | 2006-03-09 | Bayer Materialscience Ag | Metallacetylacetonate als Umesterungskatalysatoren |
KR101252883B1 (ko) * | 2005-04-22 | 2013-04-09 | 아사히 가라스 가부시키가이샤 | 이소시아네이트기 말단 우레탄 예비중합체 및 그의 제조방법, 및 상기 우레탄 예비중합체를 포함하는 접착제 |
EP2049612A4 (de) * | 2006-08-07 | 2009-08-26 | Henkel Corp | Auf 1,4:3,6 dianhydrohexitolen basierende lösungsmittelfreie zweikomponenten-polyurethanlaminierkleber |
EP2604616A1 (de) | 2011-12-12 | 2013-06-19 | Sika Technology AG | Dioxomolybdän(VI)-Komplexverbindungen als Katalysatoren für Polyurethan-Zusammensetzungen |
WO2017058504A1 (en) * | 2015-10-02 | 2017-04-06 | Resinate Materials Group, Inc. | High performance coatings |
Citations (9)
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US2916464A (en) * | 1956-12-06 | 1959-12-08 | Mobay Chemical Corp | Production of polyurethane foams using molybdenum compounds as catalysts |
US2933462A (en) * | 1957-07-03 | 1960-04-19 | Aerojet General Co | Method for the preparation of foamed polyurethanes |
US3231597A (en) * | 1957-07-03 | 1966-01-25 | Aerojet General Co | Polyurethane preparation |
FR1492452A (fr) * | 1966-09-07 | 1967-08-18 | Aerojet General Co | Procédé de préparation d'une composition propulsive solide |
JPS5676426A (en) * | 1979-11-28 | 1981-06-24 | Mitui Toatsu Chem Inc | Production of polyurethane composition |
DE19626007A1 (de) * | 1995-07-20 | 1997-01-23 | Rogers Corp | Verfahren zur Herstellung von Polyurethan unter Verwendung eines Metallacetylacetonat/Acetylaceton-Katalysator-Systems und das damit hergestellte Produkt |
EP0825209A1 (de) * | 1996-08-16 | 1998-02-25 | Bayer Ag | Reaktionsfähige Massen mit hoher Topfzeit |
EP1059379A2 (de) * | 1999-06-07 | 2000-12-13 | Benecke-Kaliko AG | Verbundgebilde mit einer oder mehreren Polyurethanschichten, Verfahren zu deren Herstellung und ihre Verwendung |
EP1167019A2 (de) * | 2000-06-28 | 2002-01-02 | World Properties, Inc. | Polyurethanverbundschaum und Verfahren zu seiner Herstellung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1114992A (en) | 1976-09-20 | 1981-12-22 | Donald V. Hillegass | Method of making polyurethane utilizing nickel acetylacetonate |
DE2902090A1 (de) | 1979-01-19 | 1980-07-24 | Bayer Ag | Hitzehaertbare beschichtungsmassen und verfahren zur beschichtung von substraten |
-
2001
- 2001-06-29 DE DE10131463A patent/DE10131463A1/de not_active Withdrawn
-
2002
- 2002-06-17 HU HU0401246A patent/HUP0401246A2/hu unknown
- 2002-06-17 EP EP02751032A patent/EP1404735A1/de not_active Withdrawn
- 2002-06-17 WO PCT/EP2002/006648 patent/WO2003002627A1/de not_active Application Discontinuation
- 2002-06-24 AR ARP020102366A patent/AR034620A1/es unknown
- 2002-06-26 US US10/180,820 patent/US6642342B2/en not_active Expired - Fee Related
Patent Citations (9)
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US2916464A (en) * | 1956-12-06 | 1959-12-08 | Mobay Chemical Corp | Production of polyurethane foams using molybdenum compounds as catalysts |
US2933462A (en) * | 1957-07-03 | 1960-04-19 | Aerojet General Co | Method for the preparation of foamed polyurethanes |
US3231597A (en) * | 1957-07-03 | 1966-01-25 | Aerojet General Co | Polyurethane preparation |
FR1492452A (fr) * | 1966-09-07 | 1967-08-18 | Aerojet General Co | Procédé de préparation d'une composition propulsive solide |
JPS5676426A (en) * | 1979-11-28 | 1981-06-24 | Mitui Toatsu Chem Inc | Production of polyurethane composition |
DE19626007A1 (de) * | 1995-07-20 | 1997-01-23 | Rogers Corp | Verfahren zur Herstellung von Polyurethan unter Verwendung eines Metallacetylacetonat/Acetylaceton-Katalysator-Systems und das damit hergestellte Produkt |
EP0825209A1 (de) * | 1996-08-16 | 1998-02-25 | Bayer Ag | Reaktionsfähige Massen mit hoher Topfzeit |
EP1059379A2 (de) * | 1999-06-07 | 2000-12-13 | Benecke-Kaliko AG | Verbundgebilde mit einer oder mehreren Polyurethanschichten, Verfahren zu deren Herstellung und ihre Verwendung |
EP1167019A2 (de) * | 2000-06-28 | 2002-01-02 | World Properties, Inc. | Polyurethanverbundschaum und Verfahren zu seiner Herstellung |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 005, no. 144 (C - 071) 11 September 1981 (1981-09-11) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3628694A1 (de) | 2018-09-26 | 2020-04-01 | Covestro Deutschland AG | Lösemittelarme beschichtungssysteme für textilien |
WO2020064631A1 (de) | 2018-09-26 | 2020-04-02 | Covestro Deutschland Ag | Lösemittelarme beschichtungssysteme für textilien |
WO2020156937A1 (de) | 2019-01-29 | 2020-08-06 | Covestro Intellectual Property Gmbh & Co. Kg | Isocyanatterminierte präpolymere für textilbeschichtungen |
Also Published As
Publication number | Publication date |
---|---|
HUP0401246A2 (hu) | 2004-09-28 |
US20030027969A1 (en) | 2003-02-06 |
AR034620A1 (es) | 2004-03-03 |
DE10131463A1 (de) | 2003-01-09 |
EP1404735A1 (de) | 2004-04-07 |
US6642342B2 (en) | 2003-11-04 |
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