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    Production of moldings from polyurethane elastomers
    31.
    发明专利
    Production of moldings from polyurethane elastomers 未知

    公开(公告)号：GB1124079A

    公开(公告)日：1968-08-21

    申请号：GB5426765

    申请日：1965-12-22

    Applicant: BASF AG

    Inventor： KUNDE JOACHIM ,  WILHELM HANS ,  DOERFEL HELMUT

    IPC: C08G18/10 ,  C08G18/42

    Abstract: Mouldings are prepared from elastomers containing urethane groups and/or urea and/or semicarbazide groups. The elastomers are prepared by reacting a polyester having at least two hydroxyl groups prepared from adipic acid and a mixture of 45-90% by wt. 1,6-hexanediol and 10-55% by wt. 2,2-dimethyl, 1,3-hexanediol, first with a polyisocyanate and then with a chain extender. The process may be carried out in the presence of an unreactive polar solvent. Up to 10% by wt. of the adipic acid may be replaced by other dicarboxylic acids, e.g. sebacic, pimelic, suberic or isophthalic acids.

    Print pastes
    34.
    发明专利
    Print pastes 未知

    公开(公告)号：GB1079603A

    公开(公告)日：1967-08-16

    申请号：GB77366

    申请日：1966-01-07

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  FAULHABER GERHARD ,  MARX MATTHIAS ,  SCHWINDT WOLFGANG

    IPC: C08F20/58 ,  C09D11/106 ,  D06P1/44

    Abstract: Print pastes for textiles and other substrates comprise an oil-in-water emulsion containing a pigment or vat dye and, as a binder, a cross-linkable water-soluble copolymer of:-(1) 5 to 60 parts by weight of an N-methylol alkyl ether of acrylamide or methacrylamide wherein the alkyl moiety of the ether group has 8 to 18 carbon atoms; (2) 3 to 20 parts by weight of a polymerizable a ,b - ethylenically unsaturated mono- or di-carboxylic acid; and (3) 20 to 75 parts by weight of at least one other ethylenically unsaturated monomer; at least 50% of the free carboxylic groups of the copolymer being neutralized by ammonia or a nitrogenous organic base (e.g. methylamine, triethylamine, dimethylethanolamine, triethanolamine, piperidine or morpholine). Examples of monomer (1) are N - (2 - ethylhexoxymethyl) - acrylamide and N - (2 - octylhexoxymethyl) - methacrylamide. Suitable monomers (2) include crotonic, citraconic, itaconic, mesaconic, maleic, fumaric and, preferably, acrylic and methacrylic acids. Monomers (3) include styrene, esters of unsaturated carboxylic acids, vinyl esters (including versatic esters), N-substituted unsaturated amides, dienes, vinyl and vinylidene chloride, vinyl ethyl ketone, vinyl ethyl ether, acrylo-methacrylo-nitriles, acrylamide and methacrylamide, N-vinyl pyrrolidone, N-vinyl caprolactam, monoesters of polyhydric alcohols and unsaturated carboxylic acids, monovinyl ethers of polyhydric alcohols, allyl alcohol and bicycloheptene compounds containing hydroxy groups. White spirit or mineral spirit gasoline fractions may be used as the oil phase of the emulsion. Pigments exemplified are red iron oxide and copper phthalocyanine. The print pastes may optionally include cross-linking or curing agents, e.g. urea-formaldehyde precondensates, melamine-formaldehyde precondensates or ammonium thiocyanate.ALSO:Print pastes for textiles, e.g. cotton, cloth, and other substrates comprise an oil-in-water emulsion containing a pigment or vat dye and, as a binder, a cross-linkable water-soluble copolymer of:- (1) 5 to 60 parts by weight of an N-methylol alkyl ether of acrylamide or methacrylamide wherein the alkyl moiety of the ether group has 8 to 18 carbon atoms; (2) 3 to 20 parts by weight of a polymerisable a ,b -ethylenically unsaturated mono- or dicarboxylic acid; and (3) 20 to 75 parts by weight of at least one other ethylenically unsaturated monomer; at least 50% of the free carboxylic groups of the copolymer being neutralised by ammonia or a nitrogenous organic base (e.g. methylamine, triethylamine, dimethyl ethanolamine, triethanolamine, piperidine or morpholine). White spirit or mineral spirit gasoline fractions may be used as the oil phase of the emulsion. Pigments exemplified are red iron oxide and copper pathalocyanine. The print pastes may optionally include cross-linking or curing agents, e.g. urea-formaldehyde precondensates, melamine-formaldehyde precondensates or ammonium thiocyanate.

    37.
    发明专利
    未知

    公开(公告)号：FR1481604A

    公开(公告)日：1967-05-19

    申请号：FR63514

    申请日：1966-05-31

    Applicant: BASF AG

    Inventor： WILHELM HANS ,  BILLE HEINZ ,  HANN ERNST WILHELM ,  DACHS KARL

    IPC: C08J3/07 ,  C08L77/00 ,  D06M15/59

    Abstract: A composition suitable for use in the treatment of textiles comprises an aqueous dispersion containing (a) a polyamide which is a co-condensate of 25-40% by weight of one or more lactams having 6-12 carbon atoms in the lactam ring or of equivalent omega-aminocarboxylic acids, 25-40% by weight of one or more salts of hexamethylene diamine with linear dicarboxylic acids having 6-12 carbon atoms, 25-40% by weight of one or more salts of 4,41-diamino-dicyclohexylmethane with linear dicarboxylic acids having 6-12 carbon atoms and 0-10% by weight of one or more other polyamide-forming substances and (b) a protective colloid which is a water-soluble copolymer having a K value of at least 90 and derived from 10-35% by weight of acrylic and/or methacrylic acid, 57.5-90% by weight of a mixture consisting of acrylamide and 5-40% by weight (on the whole of the monomers) of methacrylamide and 0-7.5% by weight of one or more other monomers. Suitable other polyamide-forming substances are dicarboxylic acids, omega-aminocarboxylic acids or diamines which are branched or contain a hetero atom in the chain, and C-substituted lactams. The other monomers in the protective colloid may be a -chloro-acrylic, phenylacrylic, crotonic, maleic, fumaric, itaconic, citraconic, mesaconic or vinylsulphonic acid or an anhydride, salt or ester thereof, methyl or ethyl acrylate or methacrylate, vinyl acetamide, N-dimethylacrylamide, N-methylacrylamide, N-ethylacrylamide or a vinyl lactam. Particularly preferred protective colloids contain 0.005-1% by weight of copolymerizable monomers containing N-methylol groups, e.g. derivatives of urea, melamine, dicyandiamide and guanidine containing N-methylol groups and groups with polymerizable olefinic double bonds and particularly N-methylolmethacrylamide and N-methylolacrylamide. The dispersion may contain 0.5-5% by weight of the protective colloid based on the weight of the polyamide. The dispersions may be prepared by mixing a solution of the polyamide in an organic solvent, e.g. ethanol, isopropanol, butanol or a mixture thereof, with water which contains the protective colloid and, if desired, distilling off all or part of the solvent. The dispersion may also contain polyolefines, polyacrylates, water repellents, dyes, pigments, thickening agents, organic solvents and reaction products, which may be etherified with alcohols containing up to four carbon atoms, of formaldehyde with urea, melamine, ethyleneurea, trimethyleneurea, 4,5-dihydroxy imidazolidone-(2), triazone (2) and its 5-alkyl and 5-hydroxy-alkyl derivatives having up to four carbon atoms in the alkyl or hydroxyl alkyl radical, 5-hydroxytrimethyleneurea or urones. In one example, the dispersion also includes an acrylonitrile-methyl acrylate (50/50) copolymer which has been incompletely hydrolysed with ammonia.ALSO:Fabrics e.g. of cotton, are coated with an aqueous dispersion containing (a) a polyamide which is a cocondensate of 25-40% by weight of one or more lactams having 6-12 carbon atoms in the lactam ring or of equivalent omega-aminocarboxylic acids, 25-40% by weight of one or more salts of hexamethylene diamine with linear dicarboxylic acids having 6-12 carbon atoms, 25-40% by weight of one or more salts of 4, 41-diaminodicyclohexylmethane with linear dicarboxylic acids having 6-12 carbon atoms and 0-10% by weight of one or more other polyamide-forming substances and (b) a protective colloid which is a water-soluble copolymer having a K value of at least 90 and derived from 10-35% by weight of acrylic and/or methacrylic acid, 57.5-90% by weight of a mixture consisting of acrylamide and 5-40% by weight (on the whole of the monomers) of methacrylamide and 0-7.5% by weight of one or more other monomers, and then dried and heated to at least 100 DEG C. Suitable other polyamide-forming substances are dicarboxylic acids, omega-aminocarboxylic acids or diamines which are branched or contain a hetero atom in the chain, and C-substituted lactams. The other monomers in the protective colloid may be a -chloro-acrylic, phenylacrylic, crotonic, maleic, fumaric, itaconic, citraconic, mesaconic or vinylsulphonic acid or an anhydride, salt or ester thereof, methyl or ethyl acrylate or methacrylate, vinyl acetamide, N-dimethylacrylamide, N-methyl acrylamide, N-ethyl-acrylamide or a vinyl lactam. Particularly preferred protective colloids contain 0.005-1% by weight of copolymerizable monomers containing N-methylol groups, e.g. derivatives of urea, melamine dicyandiamide and guanidine containing N-methylol groups, and groups with polymerizable olefinic double bonds and particularly N-methylolmethacrylamide and N-methylolacrylamide. The dispersion may contain 0.5-5% by weight of the protective colloid based on the weight of the polyamide. The dispersions may be prepared by mixing a solution of the polyamide in an organic solvent, e.g. ethanol, isopropanol, butanol or a mixture thereof, with water which contains the protective colloid and if desired distilling off all or part of the solvent. The dispersion may also contain polyolefines, poly-acrylates, water repellents, dyes, pigments, thickening agents, organic solvents and reaction products, which may be etherified with alcohols containing up to four carbon atoms, of formaldehyde with urea, melamine, ethyleneurea, trimethyleneurea, 4, 5-dihydroxy imidazolidone-(2), triazone (2) and its 5-alkyl and 5-hydroxyalkyl derivatives having up to four carbon atoms in the alkyl or hydroxyl alkyl radical, 5-hydroxytrimethyl-eneurea or uranes.ALSO:Textile material, e.g. cotton fabric, is finished and non-woven fabrics bonded by treating them with an aqueous dispersion containing (a) a polyamide which is a cocondencate of 25-40% by weight of one or more lactams having 6-12 carbon atoms in the lactam ring or of equivalent omega-aminocarboxylic acids, 25-40% by weight of one or more salts of hexamethylene diamine with linear dicarboxylic acids having 6-12 carbon atoms, 25-40% by weight of one or more salts of 4, 41-diaminodicyclohexylmethane with linear dicarboxylic acids having 6-12 carbon atoms and 0-10% by weight of one or more other polyamide-forming substances and (b) a protective colloid which is a water-soluble copolymer having a K value of at least 90 and derived from 10-35% by weight of acrylic and/or methacrylic acid, 57.5-90% by weight of a mixture consisting of acrylamide and 5-40% by weight (on the whole of the monomers) of methacrylamide and 0-7.5% by weight of one or more other monomers, and then drying and heating the treated material to at least 100 DEG C. Suitable other polyamide-forming substances are dicarboxylic acids, omega-aminocarboxylic acids or diamines which are branched or contain a hetero atom in the chain, and C-substituted lactams. The other monomers in the protective colloid may be a -chloro-acrylic, phenylacrylic, crotonic, maleic, fumaric, itaconic, citraconic, mesaconic or vinylsulphonic acid or an anhydride, salt or ester thereof, methyl or ethyl acrylate or methacrylate, vinyl acetamide, N-dimethylacrylamide, N-methyl acrylamide, N-ethylacrylamide or a vinyl lactam. Particularly preferred protective colloids contain 0.005-1% by weight of copolymerizable monomers containing N-methylol groups, e.g. derivatives of urea, melamine, dicyandiamide and guanidine containing N-methylol groups, and groups with polymerizable olefinic double bonds and particularly N-methylolmethacrylamide p and N-methylolacrylamide. The dispersion may contain 0.5-5% by weight of the protective colloid based on the weight of the polyamide. The dispersions may be prepared by mixing a solution of the polyamide in an organic solvent, e.g. ethanol, isopropanol, butanol or a mixture thereof, with water which contains the protective colloid and if desired distilling off all or part of the solvent. The dispersion may also contain polyolefines, poly-acrylates, water repellents, dyes, pigments, thickening agents, organic solvents and reaction products, which may be etherified with alcohols containing up to four carbon atoms, of formaldehyde with urea, melamine, ethyleneurea, trimethyleneurea, 4, 5-dihydroxy imidazolidone-(2), triazone-(2) and its 5-alkyl and 5-hydroxyalkyl derivatives having up to four carbon atoms in the alkyl or hydroxyl alkyl radical, 5-hydroxytrimethyleneurea or uronea.

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