WO2009087057A1 - Etoffes textiles, procédé de fabrication et utilisation de telles étoffes textiles - Google Patents

Etoffes textiles, procédé de fabrication et utilisation de telles étoffes textiles Download PDF

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Publication number
WO2009087057A1
WO2009087057A1 PCT/EP2008/068181 EP2008068181W WO2009087057A1 WO 2009087057 A1 WO2009087057 A1 WO 2009087057A1 EP 2008068181 W EP2008068181 W EP 2008068181W WO 2009087057 A1 WO2009087057 A1 WO 2009087057A1
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Prior art keywords
polyurethane
textile
fabric
fibers
textile fabric
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PCT/EP2008/068181
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German (de)
English (en)
Inventor
Ralf NÖRENBERG
Christian Steinig-Nowakowski
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Basf Se
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Publication of WO2009087057A1 publication Critical patent/WO2009087057A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • 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
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/02—Inflatable articles
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/568—Reaction products of isocyanates with polyethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/572—Reaction products of isocyanates with polyesters or polyesteramides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23504—Inflatable members characterised by their material characterised by material
    • B60R2021/23509—Fabric
    • B60R2021/23514—Fabric coated fabric
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/12—Vehicles
    • D10B2505/124—Air bags
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/18—Outdoor fabrics, e.g. tents, tarpaulins

Definitions

  • the present invention relates to a process for the production of a textile fabric, characterized in that textile fibers are treated with an aqueous formulation containing at least one water-dispersed polyurethane (A), processed into a fabric and then thermally treated.
  • A water-dispersed polyurethane
  • the present invention relates to textile fabrics and their use, in particular for the production of airbags.
  • Textile materials with low air permeability are in demand for numerous applications. Examples are tarpaulins and protective covers. Particularly important applications are airbags (impact gas bags, referred to herein as airbags) which serve as components of occupant restraint systems in vehicles, such as automobiles. Such airbags are inflated in the event of an impact of the vehicle in question within a few milliseconds, for example 10 to 40 milliseconds. Inflation takes place in many cases by igniting a solid fuel. After ignition, the generated gas is slowly drained by a few, for example two, holes directed away from the passenger of the vehicle concerned, so-called "ventholes", or through production-related holes in the airbag fabric.
  • airbags impact gas bags, referred to herein as airbags
  • Inflation takes place in many cases by igniting a solid fuel. After ignition, the generated gas is slowly drained by a few, for example two, holes directed away from the passenger of the vehicle concerned, so-called "ventholes",
  • Airbags are nowadays usually made by interweaving fibers of aramid or nylon, ie polyamide. When weaving weft yarn and in particular warp thread are exposed to considerable mechanical stress. In many cases, to avoid tearing or breaking of the warp while interweaving, it is helpful to coat the warp with an easily removable polymer. The corresponding process is also referred to as finishing.
  • Suitable polymers are selected, for example, from natural macromolecular substances such as starch, from modified natural macromolecular substances such as, for example, modified starch and carboxymethyl cellulose and from synthetic macromolecular substances such as, for example, polyvinyl alcohol, polyesters and poly (meth) acrylates.
  • natural macromolecular substances such as starch
  • modified natural macromolecular substances such as, for example, modified starch and carboxymethyl cellulose
  • synthetic macromolecular substances such as, for example, polyvinyl alcohol, polyesters and poly (meth) acrylates.
  • desizing can be, for example, of a physical nature, for example dissolving in water or else of a chemical nature, for example enzymatic removal. building processes. Thus, processes for hydrolytic or oxidative desizing are also known. Thereafter, the desized fabric is coated to achieve the desired air impermeability. Subsequently, the desired airbag is produced by assembly.
  • filter materials in particular filter materials made of polyester filaments.
  • Textile fibers in the context of the present invention may consist of natural or synthetic materials.
  • natural materials are wool, cotton, jute, hemp, silk, flax, ramie or coconut or especially cotton.
  • suitable synthetic materials are regenerated cellulose such as e.g. Copper silk, viscose or cellulose acetates such as acetate and triacetate, furthermore polyamide, polyacrylonitrile, polypropylene and polyester, aramid such as meta-aramid, p-aramid, glass and ceramic fibers and carbon fibers, also called carbon fibers.
  • mixtures are suitable, for example cotton-polyester blends.
  • polyester particularly preferred are polyamide (nylon) and aramid.
  • Embodiments of textile fibers in the context of the present invention are textile fibers, staple fibers, twine, threads, rovings, yarns, lines, cords, ropes and threads. Preference is given to yarns and, among the yarns, in particular filament yarns (continuous yarns).
  • Textile fibers in the context of the present invention may be pretreated, for example dyed. However, it is preferred to start from non-pretreated textile fibers.
  • textile fibers are treated with at least one aqueous formulation which contains at least one water-dispersed polyurethane in the frame the present invention also referred to as polyurethane (A).
  • Water-dispersed polyurethanes (A) in the context of the present invention are those which are present in the form of particles, preferably in the form of spherical particles, with an average diameter in the range from 10 to 20,000 nm in water.
  • Polyurethane (A) is to be understood below as a polyaddition product of polyisocyanates or diisocyanates with diols or other compounds which is prepared from at least 60% by weight, in particular at least 80% by weight, of polyisocyanates and diols.
  • Suitable polyurethanes (A) are preferably composed of the following starting compounds, in the context of the present application also monomers a), monomers b), etc. mentioned:
  • b1) 10 to 100 mol%, based on the total amount of diols b), have a molecular weight of more than 500 to 10,000 g / mol, preferably up to 5000 g / mol, and
  • monomers a) to d) monovalent compounds having a reactive group which is an alcoholic hydroxyl group, a primary or secondary amino group or an isocyanate group.
  • diisocyanates examples include tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 1,4-diisocyanatocyclohexane, 1-iso-cyanato-3,5,5-trimethyl-5-isocyanatomethylcyclohexane (IPDI), 2,2-bis (4-isocyanato) cyclohexyl) propane, trimethylhexane diisocyanate, 1,4-diisocyanatobenzene, 2,4-diisocyanatotoluene, 2,6-diisocyanatotoluene, 4,4'-diisocyanatodiphenylmethane, 2,4'-diisocyanatodiphenylmethane, p-xylylene diisocyanate , Tetramethylxylylendiisocyanat (TMXDI), the isomers of bis (4-isocyanato
  • Particularly suitable mixtures of diisocyanates a) are the mixtures of the respective structural isomers of diisocyanatotoluene and diisocyanato-diphenylmethane; in particular, the mixture of 80 mol% of 2,4-diisocyanatotoluene and 20 mol% of 2,6-diisocyanatotoluene is suitable.
  • mixtures of aromatic isocyanates such as 2,4-diisocyanatotoluene and / or 2,6-diisocyanatotoluene with aliphatic or cycloaliphatic isocyanates such as hexamethylene diisocyanate or IPDI are particularly advantageous, the preferred mixing ratio of aliphatic to aromatic isocyanates 4: 1 to 1: 4.
  • polyurethane (A) can be used as compounds except the aforementioned also diisocyanates a), which in addition to the free isocyanate groups further blocked isocyanate groups, eg. B. wear uretdione groups.
  • one or more monomers b) are used, also called diols b).
  • suitable diols b) are primarily relatively high molecular weight monomers b1), also called diols b1), which have a molecular weight of more than 500 to 5000, preferably 1000 to 3000 g / mol.
  • the diols b1) are in particular polyester polyols, also called polyester polyols b1), z. B. from Ullmann's Encyclopedia of Industrial Chemistry, 4th Edition, Volume 19, pp 62 to 65 are known. Preference is given to using polyesterpolyols obtained by reacting dihydric alcohols with dibasic carboxylic acids. Instead of the free polycarboxylic acids and the corresponding polycarboxylic anhydrides or corresponding polycarboxylic acid esters of alcohols such as methanol or ethanol or mixtures thereof Preparation of the polyester polyols can be used.
  • the polycarboxylic acids may be aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic and optionally, for. B.
  • halogen atoms substituted and / or unsaturated.
  • these are: suberic acid, azelaic acid, phthalic acid, isophthalic acid, phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, tetrachlorophthalic anhydride, endomethylenetetrahydrophthalic anhydride, glutaric anhydride, maleic acid, maleic anhydride, fumaric acid, dimer fatty acids.
  • y is a number from 1 to 20, preferably an even number from 2 to 20, z.
  • Succinic acid, adipic acid, sebacic acid and dodecanedicarboxylic acid are particularly preferred.
  • Ethylene glycol propane-1, 2-diol, propane-1, 3-diol, butane-1, 3-diol, butene-1, 4-diol, butyne-1, 4-diol, pentane-1, 5 diol, neopentyl glycol, bis (hydroxymethyl) cyclohexanes, such as 1,4-bis (hydroxymethyl) cyclohexane, 2-methylpropane-1,3-diol, methylpentanediols, furthermore diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, dipropylene glycol, Polypropylene glycol, dibutylene glycol and polybutylene glycols into consideration.
  • dihydric alcohols of the general formula HO- (CH 2 ) X-OH, where x is a number from 1 to 20, preferably an even number from 2 to 20.
  • examples of these are ethylene glycol, butane-1, 4-diol, hexane-1, 6-diol, octane-1, 8-diol and dodecane-1, 12-diol.
  • Further preferred is neopentyl glycol.
  • diols b1) are polycarbonate diols, as described, for example, in US Pat. B. can be obtained by reacting phosgene with an excess of the mentioned as synthesis components for the polyester polyols low molecular weight alcohols into consideration.
  • lactone-based polyesterdiols which are homopolymers or copolymers of lactones, preferably terminal hydroxyl-containing addition products of lactones onto suitable difunctional starter molecules.
  • Suitable lactones are preferably those which are derived from compounds of the general formula HO- (CH 2) a -COOH, where a is a number from 1 to 20 and an H atom of a methylene unit by a C 1 to C 4 alkyl radical may be substituted. Examples are ⁇ -caprolactone, ⁇ -propiolactone, ⁇ -butyrolactone and / or methyl- ⁇ -caprolactone and mixtures thereof.
  • Suitable starter molecules are z.
  • polyester polyols low molecular weight dihydric alcohols.
  • the corresponding polymers of ⁇ -caprolactone are particularly preferred.
  • Low molecular weight polyester diols or polyether diols can also be used as starters for the preparation of the lactone polymers.
  • the corresponding chemically equivalent polycondensates of the lactones corresponding hydroxy carboxylic acids are used.
  • polyester polyols b1) may have an average molecular weight M n in the range from 500 to 10,000 g / mol, preferably from 1,000 to 8,500 g / mol.
  • suitable monomers b1) are polyether diols, also called polyether polyols b1). They are in particular by polymerization of ethylene oxide, propylene oxide, butylene oxide, tetrahydrofuran, styrene oxide or epichlorohydrin with itself, z. B. in the presence of BF3 or by addition of these compounds, optionally in admixture or in succession, to starting components with reactive hydrogen atoms, such as alcohols or amines, for. For example, water, ethylene glycol, propane-1, 2-diol, propane-1, 3-diol, 1, 2-bis (4-hydroxydiphenyl) propane or aniline available. Particularly preferred is polytetrahydrofuran having a molecular weight (M n ) of 240 to 5000 and especially 500 to 4500 g / mol.
  • M n molecular weight
  • polyhydroxyolefins also called polyhydroxypolyolefins b1), preferably those having 2 terminal hydroxyl groups, eg. B. ⁇ , ⁇ -Dihydroxypolybuta- diene, ⁇ , ⁇ -Dihydroxypolymethacrylester or ⁇ , ⁇ -Dihydroxypolyacrylester as monomers b1).
  • polyhydroxypolyolefins also called polyhydroxypolyolefins b1
  • Such compounds are known, for example, from EP-A 0 622 378.
  • polyols are polyacetals, polysiloxanes and alkyd resins.
  • Polyester polyols b1) and polyether polyols b1) can also be used as mixtures in the ratio 0.1: 1 to 1: 9.
  • the hardness and the modulus of elasticity of the polyurethanes (A) can be increased if, as diols b), low molecular weight diols b2) having a molecular weight of from about 60 to 500, preferably from 62 to 200, g / mol are used in addition to the diols b1). the.
  • the monomers b2) used are, in particular, the short-chain alkanediols mentioned as synthesis components for the preparation of polyesterpolyols, the unbranched diols having 2 to 12 carbon atoms and an even number of carbon atoms and also pentane-1, 5-diol and neopentyl glycol being preferred become.
  • the proportion of diols b1), based on the total amount of diols b), is preferably from 10 to 100 mol% and the proportion of monomers b2), based on the total amount of diols b) is from 0 to 90 mol%.
  • the ratio of the diols b1) to the monomers b2) is particularly preferably 0.1: 1 to 5: 1, particularly preferably 0.2: 1 to 2: 1.
  • one or more monomers c) are incorporated in polyurethane (A) in addition to the monomers a), b) and optionally d).
  • Monomers c) bear at least one isocyanate group or at least one isocyanate-reactive group and moreover at least one hydrophilic group or a group which can be converted into a hydrophilic group and which is also called “potentially hydrophilic group""Hydrophilic groups or potentially hydrophilic groups” are abbreviated to "(potentially) hydrophilic groups.”
  • the (potentially) hydrophilic groups react much more slowly with isocyanates than the functional groups of the monomers used to build up the polymer backbone.
  • the proportion of the monomer or monomers c) in the total amount of the monomers a), b), c), d) and optionally e) is generally such that the molar amount of the (potentially) hydrophilic groups, based on the weight of all monomers a) to e), 30 to 1000, preferably 50 to 500 and particularly preferably 80 to 300 mmol / kg.
  • the (potentially) hydrophilic groups may be nonionic or, preferably, (potentially) ionic hydrophilic groups.
  • Suitable nonionic hydrophilic groups are, in particular, polyethylene glycol ethers of preferably 5 to 100, preferably 10 to 80, ethylene oxide repeat units.
  • the content of polyethylene oxide units is generally 0 to 10, preferably 0 to 6 wt .-%, based on the amount by weight of all monomers a) to e).
  • Preferred monomers with nonionic hydrophilic groups are polyethylene oxide diols, polyethylene oxide monools and the reaction products of a polyethylene glycol and a diisocyanate which carry a terminally etherified polyethylene glycol radical.
  • diisocyanates and processes for their preparation are given in the patents US 3,905,929 and US 3,920,598.
  • Ionic hydrophilic groups are especially anionic groups such as the sulfonate, the carboxylate and the phosphate group in the form of their alkali metal or ammonium salts and cationic groups such as ammonium groups, in particular protonated tertiary amino groups or quaternary ammonium groups.
  • Potentially ionic hydrophilic groups are especially those which can be converted by simple neutralization, hydrolysis or quaternization into the above-mentioned ionic hydrophilic groups, ie, for.
  • (Potential) ionic monomers c) are z. As described in Ullmann's Encyclopedia of Industrial Chemistry, 4th Edition, Volume 19, S.311 to 313 and for example in DE-A 14 95 745 in detail.
  • monomers having tertiary amino groups are of particular practical importance, for example: tris (hydroxyalkyl) amines, N, N'-bis (hydroxyalkyl) alkylamines, N-hydroxyalkyl-dialkylamines, Tris- (aminoalkyl) -amines, N, N'-bis (aminoalkyl) -alkylamines, N-aminoalkyl-dialkylamines, wherein the alkyl radicals and alkanediyl moieties of these tertiary amines independently of one another consist of 1 to 6 carbon atoms.
  • Example, by alkoxylation of two bound to amine nitrogen hydrogen atoms containing amines, eg. As methylamine, aniline or N, N'-dimethylhydrazine, in per se conventional manner are available, into consideration.
  • Polyethers containing such tertiary nitrogen atoms generally have a molecular weight M w lying in the range from 500 to 6000 g / mol.
  • These monomers having tertiary amino groups are either with acids, preferably strong mineral acids such as phosphoric acid, sulfuric acid, hydrohalic acids or strong organic acids or by reaction with suitable quaternization such as d- to C ⁇ -alkyl halides or benzyl halides, eg. As bromides or chlorides, transferred to the ammonium salts.
  • acids preferably strong mineral acids such as phosphoric acid, sulfuric acid, hydrohalic acids or strong organic acids
  • suitable quaternization such as d- to C ⁇ -alkyl halides or benzyl halides, eg. As bromides or chlorides, transferred to the ammonium salts.
  • Suitable monomers having (potentially) anionic groups are usually aliphatic, cycloaliphatic, araliphatic or aromatic carboxylic acids and sulfonic acids which carry at least one alcoholic hydroxyl group or at least one primary or secondary amino group. Preference is given to dihydroxyalkyls, especially those having 3 to 10 carbon atoms, as are also described in US Pat. No. 3,412,054. In particular, compounds of the general formula d)
  • a 2 and A 3 are identical or different and are a C 1 to C 4 alkanediyl unit and R 1 is a C 1 to C 4 alkyl unit and especially dimethylolpropionic acid (DMPA) is preferred.
  • DMPA dimethylolpropionic acid
  • dihydroxysulfonic acids and dihydroxyphosphonic acids such as 2,3-dihydroxypropanephosphonic acid.
  • dihydroxyl compounds having a molecular weight above 500 to 10,000 g / mol with at least two carboxylate groups which are known from DE-A 39 11 827. They are obtainable by reaction of dihydroxyl compounds with tetracarboxylic dianhydrides, such as pyromellitic dianhydride or cyclopentanetetracarboxylic dianhydride, in a molar ratio of 2: 1 to 1:05 in a polyaddition reaction. Suitable dihydroxyl compounds are, in particular, the monomers b2) listed as chain extenders and the diols b1).
  • aminocarboxylic acids such as lysine, .beta.-alanine or the adducts of aliphatic diprimary diamines mentioned in DE-A 20 34 479 are bonded to .alpha.,. Beta.-unsaturated carboxylic or sulfonic acids consideration.
  • Particularly preferred compounds of the formula (c2) are the N- (2-aminoethyl) -2-aminoethaneacarboxylic acid and the N- (2-aminoethyl) -2-aminoethanesulfonic acid or the corresponding alkali metal salts, Na being particularly preferred as the counterion.
  • compounds of general formula (c2) are particularly preferred as compounds of general formula (c2) are the adducts of the abovementioned aliphatic diprimary diamines with 2-acrylamido-2-methylpropanesulfonic acid, as described, for example, in US Pat. B. in DE Patent 19 54 090 are described.
  • the sulfonate or carboxylate groups are particularly preferably in the form of their salts with an alkali metal ion or an ammonium ion as the counterion.
  • Monomers d which are different from the monomers a) to c) and which may also be used for the preparation of polyurethane (A), serve in many embodiments for crosslinking or chain extension. They are generally NEN more than dihydric non-phenolic alcohols, amines having two or more primary and / or secondary amino groups and compounds which carry one or more primary and / or secondary amino groups in addition to one or more alcoholic hydroxyl groups.
  • monoalcohols which, in addition to the hydroxyl group, carry a further isocyanate-reactive group, such as monoalcohols having one or more primary and / or secondary amino groups, eg. B. monoethanolamine.
  • Polyamines having two or more primary and / or secondary amino groups are used especially when chain extension or crosslinking is to take place in the presence of water, since amines generally react faster than alcohols or water with isocyanates. This is often required when aqueous dispersions of high molecular weight crosslinked polyurethanes or polyurethanes are desired. In such cases, the procedure is to prepare prepolymers with isocyanate groups, to rapidly disperse them in water and then to chain extend or crosslink them by adding compounds containing several isocyanate-reactive amino groups.
  • Suitable amines for this purpose are generally polyfunctional amines of the molecular weight range from 32 to 500 g / mol, preferably from 60 to 300 g / mol, which contain at least two amino groups selected from the group of primary and secondary amino groups.
  • diamines such as diaminoethane, diamopropanes, diaminobutanes, diaminohexanes, piperazine, 2,5-dimethylpiperazine, amino-3-aminomethyl-3,5,5-trimethylcyclohexane (isophoronediamine, IPDA), 4,4'-diaminodi - cyclohexylmethane, 1, 4-diaminocyclohexane, aminoethylethanolamine, hydrazine, hydrazine hydrate or triamines such as diethylenetriamine or 1, 8-diamino-4-aminomethyloctan.
  • diamines such as diaminoethane, diamopropanes, diaminobutanes, diaminohexanes, piperazine, 2,5-dimethylpiperazine, amino-3-aminomethyl-3,5,5-trimethylcyclohexane (isophoronediamine, IPDA
  • the amines may also be in blocked form, for.
  • ketazines cf., for example, US Pat. No. 4,269,748
  • amine salts see US Pat. No. 4,292,2236
  • Oxazolidines as used for example in US Pat. No. 4,192,937, are also blocked polyamines which can be used for the preparation of the polyurethanes according to the invention for chain extension of the prepolymers.
  • capped polyamines When using such capped polyamines they are generally mixed with the prepolymers in the absence of water and this mixture is then mixed with the dispersion water or a part of the dispersion water, so that the corresponding polyamines are hydrolytically released. Preference is given to using mixtures of diamines and triamines, particularly preferably mixtures of isophoronediamine (IPDA) and diethylenetriamine (DETA).
  • IPDA isophoronediamine
  • DETA diethylenetriamine
  • polyurethane (A) preferably 1 to 30, more preferably 4 to 25, mol%, based on the total amount of monomers b) and d), of a polyamine having at least 2 isocyanate-reactive amino groups as monomer d) one.
  • no polyamine is used to prepare polyurethane (A).
  • divalent isocyanates can also be used as monomers d).
  • Commercially available compounds are, for example, the isocyanurate or the biuret of hexamethylene diisocyanate.
  • Monomers e which are optionally used, are monoisocyanates, monohydric alcohols and monoprimary and secondary amines. In general, their proportion is at most 10 mol%, based on the total molar amount of the monomers.
  • These monofunctional compounds usually carry further functional groups, such as olefinic groups or carbonyl groups, and serve to introduce functional groups into the polyurethane, which make possible the dispersion or crosslinking or further polymer-analogous reaction of the polyurethane.
  • Suitable for this purpose are monomers such as isopropenyl- ⁇ , ⁇ -dimethylbenzyl isocyanate (TMI) and esters of acrylic or methacrylic acid such as hydroxyethyl acrylate or hydroxyethyl methacrylate.
  • TMI isopropenyl- ⁇ , ⁇ -dimethylbenzyl isocyanate
  • esters of acrylic or methacrylic acid such as hydroxyethyl acrylate or hydroxyethyl methacrylate.
  • the monomers a) to e) and their respective molar amounts are chosen such that the ratio of the molar amount of isocyanate groups on the one hand and the sum of the molar amount of the functional groups which can react with isocyanates in an addition reaction, on the other hand, in the range of 0.5 : 1 to 2: 1, preferably 0.8: 1 to 1, 5: 1, more preferably 0.9: 1 to 1, 2: 1. Most preferably, the ratio of the molar amount of isocyanate groups on the one hand and the sum of the molar amount of the functional groups that can react with isocyanates in an addition reaction on the other hand, as close as possible to 1: 1.
  • the monomers used a) to e) carry on average usually 1, 5 to 2.5, preferably 1, 9 to 2.1, more preferably 2.0 isocyanate groups or functional groups which can react with isocyanates in an addition reaction ,
  • An aqueous formulation used in the process according to the invention may have a solids content in the range from 20% to 70%, preferably 35% to 60%.
  • the aqueous formulation used in the process according to the invention has a pH in the range from 3 to 10, preferably 6 to 8.
  • an aqueous formulation which, in addition to polyurethane (A), contains at least one thickener (thickener), hereinafter also referred to as thickener (B).
  • Thickener (B) may be of natural or synthetic origin, and thickener (B) may be organic or inorganic in nature.
  • Aqueous formulations according to the invention may contain, for example, one or more natural thickeners or preferably one or more synthetic thickeners.
  • Natural thickeners are those thickeners which are natural products or can be obtained by working up such as cleaning operations, in particular extraction of natural products.
  • examples of inorganic natural thickeners are phyllosilicates such as bentonite.
  • examples of organic natural thickeners are preferably proteins such as casein or preferably polysaccharides.
  • Particularly preferred natural thickeners are selected from agar-agar, carrageenan, gum arabic, alginates such as sodium alginate, potassium alginate, ammonium alginate, calcium alginate and propylene glycol alginate, pectins, polyoses, carob bean gum and dextrins.
  • Suitable synthetic inorganic thickeners are bentonites and silica gels, in particular pyrogenic silica gels.
  • Synthetic thickeners which are selected from generally liquid solutions of synthetic polymers, in particular acrylates, in, for example, white oil or water.
  • Synthetic polymers used as thickeners contain acid groups which are completely or to some extent neutralized with a volatile base, for example with ammonia. During the fixing process volatile base, in particular ammonia is released, whereby the pH is lowered and the actual fixation begins.
  • the lowering of the pH required for the fixation may alternatively be accomplished by the addition of non-volatile acids, e.g. Citric acid, succinic acid, glutaric acid or malic acid take place.
  • di-ammonium phosphate and sodium di-ammonium phosphate are suitable for lowering the pH.
  • the aqueous formulation used in the process according to the invention also contains one or more auxiliaries (C).
  • auxiliaries (C) are polyacrylates, dispersed or water-soluble, waxes, for example polyethylene waxes having a molecular weight M w in the range from 1,000 to 20,000 g / mol, in particular from 1,500 to 10,000 g / mol, partially oxidized polyethylene waxes - so-called oxidates - solid Paraffins, nanoparticulate inorganic substances such as alumina, silicates, aluminosilicates and carbon black.
  • Suitable auxiliaries (C) are defoamers, for example silicone oils, paraffin oils and (alkyl) alkylene oxides.
  • the silicone oils used according to the invention may be linear, branched or cyclic polysiloxanes or mixtures of the abovementioned ones.
  • Polysiloxanes used as defoamers have O-Si-O chains.
  • the free valences on Si can be saturated, for example, by OH, C 1 -C 10 -alkyl or by phenyl, with phenyl and in particular methyl being preferred.
  • Silicone oils used as defoamers according to the invention are known per se.
  • At least one silicone oil has a dynamic viscosity in the range from 100 to 2000 mPa.s, preferably up to 500 and particularly preferably up to 200 mPa.s, measured according to DIN EN ISO 3219 at 23 ° C.
  • crosslinkers are carbodiimides, in particular polymeric carbodiimides, isocyanurates, for example trimeric hexamethylene diisocyanate (HDI) and hydrophilic derivatives of trimeric HDI, in particular reaction products of trimeric HDI with polyalkoxylated C 1 -C 20 -alkanols.
  • DEI trimeric hexamethylene diisocyanate
  • hydrophilic derivatives of trimeric HDI in particular reaction products of trimeric HDI with polyalkoxylated C 1 -C 20 -alkanols.
  • DMDHEU N, N-dihydroxymethyl-4,5-dihydroxyethyleneurea
  • dimeric DMDHEU and reaction products of DMDHEU with mono- or dihydric alcohols, in particular C 1 -C 4 -alkanols, in particular methanol or ethanol, or ethylene glycol , Diethylene glycol or triethylene glycol.
  • the aqueous formulation used in the process according to the invention contains in the range from 30 to 60% by weight, preferably 35 to 50% by weight of polyurethane (A), in the range from 0.1 to 10% by weight. preferably 1 to 3 wt .-% thickener (B), in total in the range of zero to 5%, preferably 0.1 to 2 wt .-% of one or more auxiliaries (C).
  • aqueous formulation used in the process according to the invention contains polyurethane (A) and optionally one or more auxiliaries (C), but no thickener (B).
  • textile fibers are treated with the above-described aqueous formulation by drawing the textile fibers one or more times through a bath or through several baths with the aid of suitable devices, such as warp beams, warts, chaff chains, chords or in particular rolls containing / consisting of or consisting of the aqueous formulation described above.
  • suitable devices such as warp beams, warts, chaff chains, chords or in particular rolls containing / consisting of or consisting of the aqueous formulation described above.
  • the treatment applies aqueous formulation and in particular polyurethane (A) to the textile fibers.
  • the treatment time of textile fibers with the above-described aqueous formulation is usually short and depends on the speed at which the textile fibers to be treated are drawn through the container (s) in which or in which the respective aqueous (s) Formulation (s) are located. Suitable machine speeds are in the range of 5 to 500 m / min. When working with machines that pull only a single thread through one or more containers in which or in which the respective aqueous formulation (s) is or are located, machine speeds above 500 m / s are required. min possible.
  • finishing requirements are understood to mean the ratio of applied polyurethane (A) and optionally thickener (B) to textile fiber.
  • the treatment according to the invention is carried out at a temperature in the range from 10 to 60 ° C., preferably from 20 to 50 ° C.
  • aqueous formulation and in particular of polyurethane (A) to the textile fibers by squeezing them.
  • the squeezing can be done for example by rolling with a defined contact pressure.
  • the arrangement of roles and bath can correspond to that of a foulard.
  • the optional thermal treatment is carried out continuously.
  • the optional thermal treatment is carried out by maintaining at a temperature in the range from 80 to 160 ° C., preferably from 130 to 150 ° C., over a period of 2 seconds to 5 minutes, preferably 6 seconds to 1 minute C treated.
  • the optional thermal treatment may, for example, be carried out by drawing the aqueous formulation-treated textile fibers through a drying unit. Suitable drying units are, for example, cylinder dryers or tubular ovens. After thermal treatment, the aqueous formulation-treated textile fibers often feel smooth and stiffened.
  • a residual moisture content preferably to a residual moisture content of from 1 to 10% by weight, in particular up to a maximum of 5% by weight.
  • polyurethane (A) coated textile fibers which are referred to in the context of the present invention as with polyurethane (A) equipped textile fibers.
  • textile fibers treated as described above are processed to form a textile fabric, also referred to as a flat structure for short.
  • Textile fabrics in the context of the present invention are knitted fabrics, knitted fabrics and preferably fabrics.
  • textile fibers equipped with polyurethane (A) into a fabric then they can be interwoven according to methods known per se, for example with a loom.
  • warp and weft from polyurethane (A) finished fibers. It is also possible, for the production of fabrics, to start with warp yarn finished with polyurethane (A) and to make a fabric with the aid of an unfinished weft.
  • the treatment is carried out thermally, batchwise or preferably continuously.
  • the textile fabric can be pulled through a drying unit. Suitable drying units are, for example, cylinder dryers or tubular ovens.
  • the thermal treatment is carried out batchwise by drying the textile fabric in one or more drying chambers, fan chambers or in a hot-air drying cabinet.
  • the thermal treatment is carried out such that over a period of 5 seconds to 30 minutes, preferably 30 seconds to 5 minutes at a temperature in the range of 120 0 C to 180 0 C, preferably at least 140 ° C treated.
  • Temperature data are based on the air temperature or - with the use of other gases, such as inert gas - gas temperature.
  • the thermal treatment is combined with a mechanical treatment.
  • a mechanical treatment for example, the textile fabric by at least two pairs of heated rollers (rollers), for example, steel or silicone lead.
  • Heated rollers according to the present invention may have a temperature in the range of 120 to 200 0 C.
  • contact pressure you can choose 5 to 100 bar, preferably 50 to 80 bar.
  • Suitable devices for a combined thermal and mechanical treatment are, for example, calenders, in particular hot calenders, and thermal presses.
  • one or more rollers for example a calender, or the plates of thermal presses may be provided with a fluorinated or siliconized surface protection to prevent the polyurethane (A) from adhering to the rollers or plates and thus damaging the finished fibers of the textile fabric.
  • thermo treatment it is possible to carry out the thermal treatment one or more times, for example by passing several times through one or more drying units or by passing it through a plurality of arrangements of at least two heated rollers arranged in pairs.
  • no desizing step is carried out, either chemically or physically.
  • the polyurethane (A) applied in the treatment step remains essentially on the textile fabric, for example at least 85%, preferably at least 95%.
  • treatment with the aqueous formulation and single or multiple thermal treatment form a non-tacky film on the sheet.
  • the non-sticky film can not only enclose the fibers, but also at least partially fill the spaces between the fibers in the textile fabric.
  • non-sticky is understood to mean that the two sides of the textiles produced according to the invention are folded in several layers at temperatures in the range from 20 to 100 ° C. and a weight of 0.5 kg for several months and then lightly manually can be separated from each other without causing damage or tearing off of the coating.
  • the porosity of the textile fabrics produced according to the invention can be adjusted, for example by varying the yarn load (size coat), the length and the temperature of the thermal treatment and the choice of the untreated textile fabric, for example the choice of a close-meshed or a wide-mesh knit or the choice of thread density and thread thickness of a fabric.
  • the porosity of fabric according to the invention can be determined, for example, by determining the air permeability.
  • textiles produced according to the invention have an air permeability at room temperature in the range of 50 to 500 l / min-m 2 , preferably 100 to 400 l / min-m 2 , determined according to DIN 53887 at an air pressure of 500 Pa.
  • air permeability is also referred to as "low air permeability" in the context of the present invention.
  • the method according to the invention can be carried out easily and quickly. Due to the lack of desizing step, it also causes little wastewater and is therefore particularly environmentally friendly.
  • a further advantage is that no subsequent coating step is required.
  • the process according to the invention is preferably carried out without a subsequent coating step.
  • textile fabrics produced by the process according to the invention are mechanically particularly flexible.
  • the mechanical flexibility can be determined, for example, by manual buckling. They are therefore particularly suitable for applications in which textile is required with low tack and low air permeability. Examples are filter materials, tarpaulins and airbags.
  • a further subject of the present invention are textile fabrics comprising textile fibers finished with polyurethane (A).
  • the present invention relates, in particular, to textile fabrics having an air permeability in the range from 50 to 500 l / min-m 2 , preferably from 100 to 400 l / min-m 2
  • textile fabrics processed into a fabric which are substantially or preferably exclusively of polyester or in particular polyamide or
  • Aramid exist as a fibrous material
  • textile fabrics according to the invention are additionally flexible, in particular mechanically flexible.
  • textile fabrics according to the invention are produced by the process according to the invention described above.
  • non-sticky film (2) with low air permeability is produced in fabrics of the invention using at least one aqueous formulation containing at least one polyurethane (A) and preferably at least one thickener (B).
  • Inventive textile fabrics are particularly suitable for applications in which textile with low tackiness and low air permeability is required, for example as or for the production of tarpaulins, for example in the construction sector, or as or for the production of filter materials.
  • Especially textile fabrics of the invention are suitable for the production of airbags.
  • Another object of the present invention is therefore the use of textile fabrics according to the invention as or for the production of tarpaulins or filter materials and in particular for the production of airbags.
  • Another object of the present invention is a process for the production of filter materials, tarpaulins or airbags using at least one textile fabric according to the invention.
  • Another object of the present invention are tarpaulins and filter materials prepared using textile fabrics according to the invention.
  • a further subject of the present invention are airbags, in particular for vehicles, produced using textile fabrics according to the invention.
  • airbags made of textile fabric according to the invention can be carried out, for example, by means of packaging known per se. You can also train one or more holes (English: Vent holes).
  • the film-shaped polyurethane (A) equipment can be melted at a point and thus bond textile fabric according to the invention to other substrates, for example wood, metal, plastic, in particular thermoplastic, and textile, very particularly preferably with a further textile fabric according to the invention or with another point of the relevant textile fabric.
  • airbags are produced by bonding using textile fabrics according to the invention, for example by gluing two or more layers of the same textile fabric according to the invention or by gluing two or more pieces of textile fabrics together.
  • a polyacrylate-based adhesive for example, a polyacrylate-based adhesive or a polyvinyl acetate-based adhesive.
  • Preferred adhesives are polyurethanes, for example as powders, aqueous pastes or multicomponent systems, so-called isocyanate adhesives.
  • airbags are manufactured by using textile fabric according to the invention by high-frequency welding, for example by high-frequency welding of two or more layers of the same textile fabric according to the invention or by gluing two or more pieces of textile fabric.
  • high-frequency welding the magnetic dipoles of the textile fabrics to be welded according to the invention are excited using a high-frequency welding apparatus by means of a high-frequency electromagnetic alternating field. This excitation causes warming. If you then press two or more layers or copies of inventive fabric together, they are connected together.
  • the advantages of this method are that it is a continuous welding process, in which larger areas of textile fabrics according to the invention or textile fabric according to the invention can be processed without settling the welding apparatus.
  • Suitable frequencies may be in the megahertz range, for example 1 to 50 MHz, in particular 20 to 30 MHz.
  • Another object of the present invention are aqueous formulations, for example, solutions or dispersions containing
  • At least one water-dispersed polyurethane prepared by reacting at least one diisocyanate a) and at least one polyester polyol b1) or at least one polyether polyol b1) and further at least one monomer c) having a hydrophilic or potentially hydrophilic group and optionally one or more others Monomers b2), d) or e),
  • aqueous formulations of the invention have a solids content of 20% to 70%, preferably 35% to 60%.
  • the pH of formulations according to the invention is in the range from 3 to 10, preferably 6 to 9.
  • Aqueous formulations according to the invention are particularly suitable for carrying out the method according to the invention described above.
  • Polyamide yarn (polyamide warp yarn, warp yarn dtex: 78) was treated on a BenSizeSingle sizing machine from Benninger with a hot-air cylinder dryer.
  • the sizing machine was set as follows:
  • Thread count 1098, raw / reeling width: 168 cm,
  • Treatment dip 1 time, squeeze once.
  • Drying conditions 2 x air drying at 150 0 C, 5 rolls each having 145 ° C Regrowth: at 85 ° C with polyethylene oxide wax having (weight average) about 110 ethylene oxide units / molecule
  • the treated yarns were then woven as warp yarns (10 warp beams each with 12,000 m)
  • a yarn finished in II. was introduced as warp yarn in a loom. Subsequently, with a second finished yarn according to II., It was entangled as a weft yarn, thereby producing a woven fabric. It had an air permeability of 1000 l / min-m 2 .
  • the fabric thus produced was calendered over two silicone rolls with a temperature of 150 ° C. at a contact pressure of 80 bar. There was no desecrating step.
  • the result was a textile fabric according to the invention which was not sticky, was mechanically flexible and had an air permeability of 120 l / min-m 2 .
  • Inventive textile fabric can be used as a tarpaulin, for example in the construction sector, or for the production of airbags.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une étoffe textile, caractérisé en ce que les fibres textiles sont traitées par une formule aqueuse contenant au moins du polyuréthane (A) dispersé dans de l'eau, transformées en une étoffe, puis traitées thermiquement.
PCT/EP2008/068181 2008-01-11 2008-12-22 Etoffes textiles, procédé de fabrication et utilisation de telles étoffes textiles WO2009087057A1 (fr)

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EP2500454B1 (fr) * 2011-03-16 2015-05-13 Autoliv Development AB Etoffe pour une utilisation dans la fabrication d'un airbag gonflable

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BE758129A (fr) 1969-10-28 1971-04-01 Bayer Ag Sels d'acides 2-(beta-amino-propionamino)-alcane sulfoniques etleur utilisation comme composants de synthese anioniques dans la preparation dedispersions de polyurethanes sans agents emulsifiants
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DE4231034A1 (de) * 1992-09-17 1994-03-24 Basf Ag Polyurethan-Dispersionen und ihre Verwendung als Beschichtungsmittel für Textilien und Leder
DE19537240A1 (de) * 1995-10-06 1997-04-10 Basf Ag Verfahren zur Stabilisierung von gefärbtem Textilgut gegen Vergilbung
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