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    Production of bonded nonwovens by the wet method
    1.
    发明授权
    Production of bonded nonwovens by the wet method 失效
    通过湿法生产粘结的非织造布

    公开(公告)号：US3657031A

    公开(公告)日：1972-04-18

    申请号：US3657031D

    申请日：1969-06-27

    Applicant: BASF AG

    Inventor： REINHARD HANS ,  WELZEL GERHARD ,  FRANK HANS-ULRICH ,  STEPHAN RUDOLF

    IPC: A61L15/20 ,  D21H17/34 ,  D21H17/43 ,  B29J5/00

    CPC classification number: D21H17/43 ,  A01N33/12 ,  A61L15/20 ,  A61L15/46 ,  D21H17/34 ,  Y10T442/603 ,  Y10T442/607

    Abstract: Textile nonwovens can be prepared with particular advantage by treatment of textile fibers suspended in an aqueous medium with dissolved quaternary organic ammonium salts and with watersoluble salts of polymers having carboxyl groups of vinylpyrrolidone polymers, precipitation of binder polymers dispersed in water onto the treated suspended fibers, separation of the aqueous medium from the fibers and drying the bonded fibers.

    Abstract translation: 纺织无纺布可以通过处理悬浮在具有溶解的季铵有机铵盐的水性介质中的纺织纤维和具有乙烯基吡咯烷酮聚合物羧基的聚合物的水溶性盐，将分散在水中的粘合剂聚合物沉淀在经处理的悬浮液 纤维，将水性介质与纤维分离并干燥粘结纤维。

    Production of bonded nonwovens by the wet method
    2.
    发明授权
    Production of bonded nonwovens by the wet method 失效
    通过湿法生产粘结的非织造布

    公开(公告)号：US3635776A

    公开(公告)日：1972-01-18

    申请号：US3635776D

    申请日：1969-06-27

    Applicant: BASF AG

    Inventor： STEPHAN RUDOLF ,  WELZEL GERHARD ,  REINHARD HANS ,  FRANK HANS-ULRICH

    IPC: D21H17/50 ,  D21H23/00 ,  C09J5/04

    CPC classification number: D21H23/00 ,  D21H17/50

    Abstract: Bonded nonwovens can be produced with particular advantage by the wet method by treating the textile fibers prior to the addition of the binder polymers with water-soluble cationic polycondensation products which have been prepared from carbamides, formaldehyde, dicyanodiamide and salts of ammonia or of amines.

    Abstract translation: 粘合的无纺布可以通过湿法通过处理纺织纤维而特别有利地通过在使用由氨基或胺或胺的盐制备的水溶性阳离子缩聚产物加入粘合剂聚合物之前进行处理。

    Finishing coat on plasticized polyvinyl chloride
    5.
    发明专利
    Finishing coat on plasticized polyvinyl chloride 未知

    公开(公告)号：GB1093215A

    公开(公告)日：1967-11-29

    申请号：GB830165

    申请日：1965-02-26

    Applicant: BASF AG

    Inventor： WELZEL GERHARD ,  FAULHABER GERHARD

    IPC: B05D7/02 ,  C08J7/04 ,  C09D133/12 ,  D06N3/04 ,  D06N3/08

    Abstract: Compositions for use as a finishing coat on plasticized polyvinyl chloride films comprise aqueous dispersions of a copolymer of: (A) 40 to 90% by weight of methyl methacrylate; (B) 1 to 20% by weight of an ester of a polymerizable a ,b -ethylenically unsaturated carboxylic or di-carboxylic acid with a polyhydric alcohol bearing a chlorine atom in a -position to a free hydroxyl group; and (C) up to 59% by weight of one or more other ethylenically unsaturated, polymerizable compounds, the sum of the percentages of (A), (B) and (C) totalling 100. Examples of (B) are chlorohydrin esters of acrylic, methacrylic, fumaric and maleic acids with polyhydric alcohols such as 3 - chloropropanediol - (1,2); (2,3) - dichlorobutanediol - (1,4); 3 - chlorobutanetriol-(1,2,4); (1,4) - dichlorobutanediol - (2,3); 3-chloro - 2 - methyl propanediol - (1,2) and 3 - chloro - 2 - chloromethylpropanediol - (1,2). Examples of (C) are N-methylol methacrylamide, styrene, a -methyl styrene, vinyl acetate, acrylic or methacrylic acid, acrylo- or methacrylonitrile and acrylic esters of alcohols having 1 to 18 carbon atoms. The polymers are obtained by polymerization of the monomers in aqueous dispersion, the dispersions having a polymer content of 25 to 60% by weight. The dispersion may also include thickening agents such as vinylpyrrolidone-vinyl propionate copolymers; precondensates of formaldehyde with urea or melamine, e.g. dimethylol propyleneurea, dimethylolethylenurea, N,N1,N11, N111 - tetramethylolglyoxaldiureine, N,N1-dimethylol - glyoxalmonoureine or N,N1-dimethylolurea etherified with methanol; wetting agents such as sodium isopropylisohexyl-naphthalene sulphonate and buffers, e.g. an aqueous solution of NaHCO3 or NH4Cl.ALSO:Finishing coats on plasticised polyvinyl chloride films are produced by applying an aqueous dispersion of a copolymer of: (A) 40 to 90% by weight of methyl methacrylate (B) 1 to 20% by weight of an ester of a polymerizable a ,b -ethylenically unsaturated carboxylic or dicarboxylic acid with a polyhydric alcohol bearing a chlorine atom in a -position to a free hydroxyl group, and (C) up to 59% by weight of one or more other ethylenically unsaturated, polymerizable compounds, the sum of the percentages (A), (B) and (C) totalling 100, and drying the coating. Examples of (B) are chlorohydrin esters of acrylic, methacrylic, fumaric and maleic acids with polyhydric alcohols such as 3-chloropropanediol-(1,2), (2,3)-dichlorobutanediol-(1,4) 3-chlorobutanetriol-(1,2,4), (1,4)-dichlorobutanediol-(2,3), 3-chloro-2-methyl propanediol-(1,2) and 3-chloro-2-chloromethylpropanediol. Examples of C are acrylic or methacrylic acid, acrylo- or methacrylonitrile, acrylic esters of alcohols having 1 to 18 carbon atoms, n-methylol methacrylamide, styrene, a -methyl styrene, vinyl acetate. Thickening agents may be added to the dispersion which may be applied as a paste by a coating knife. Examples disclose vinylpyrrolidone copolymers as thickening agents. Precondensates of formaldehyde with urea or melamine may be added to the dispersion such as aminoplasts, e.g. dimethylolpropylenurea, dimethylolethylenurea, N, N\sv, N\yF, N\yG-tetramethylol glyoxaldiureine, N, N\sv-dimethylol-glyoxalmonoureine or N, N\sv-dimethylolurea etherified with methanol. In some of the Examples the plasticized polyvinyl chloride is in the form of a coating on a substrate such as cloth and is pregelled at 120 DEG to 130 DEG C, the finishing coat then spread on and gelling completed at 170 DEG to 180 DEG C, and finally embossed. A wetting agent is present in the aqueous dispersion in some cases.

    Coating fabrics
    6.
    发明专利
    Coating fabrics 未知

    公开(公告)号：GB939097A

    公开(公告)日：1963-10-09

    申请号：GB4364961

    申请日：1961-12-06

    Applicant: BASF AG

    Inventor： PENNING ERNST ,  WELZEL GERHARD ,  REINHARD HANS ,  WOLF HANS ,  WILHELM HANS

    IPC: B32B27/00 ,  C08G18/62 ,  D06M15/267 ,  D06M15/564 ,  D06N3/04 ,  D06N3/14

    Abstract: 939,097. Coated fabrics. BADISCHE ANILIN- & SODA-FABRIK A.G. Dec. 6, 1961 [Dec. 7, 1960], No. 43649/61. Class 140. Fabrics, especially fabrics of man-made fibres, such as a polycaprolactam fabric, are coated by the application thereto of a solution in a volatile solvent of (a) at least one copolymer of a mixture of (i) at least one unsaturated polymerizable compound containing one or more hydroxyl groups, and (ii) at least one other unsaturated polymerizable compound and (b) at least one polyisocyanate, the solvent is evaporated and the copolymer and polyisocyanate are cross-linked by heating. At least one of the unsaturated polymerizable compounds (i) may be a polymerizable ester of a carboxylic acid which still contains a hydroxyl group, e.g. a partial ester of acrylic or methacrylic acid with a polyhydric alcohol, such as partial esters of butane-1,4-diol-monoacrylate, pentane - 1,4 - diol - monoacrylate and ethylene glycol monomethacrylate. Especially suitable components for copolymerization with these partial esters are acrylic and methacrylic acid esters of alcohols with 1 to 4 carbon atoms, e.g. butyl acrylate, methyl methacrylate, or vinyl esters, e.g. vinyl acetate or propionate. Component (a) may be prepared by polymerization of monomer mixtures containing 0.5 to 10% of monomer (i). The proportion of component (b) may be 0.5 to 10% by weight of component (a). Polyisocyanates specified are the reaction products of polyhydric alcohols with toluylene polyisocyanates which have an excess of reactive isocyanate groups, and di-isocyanates such as hexamethylene-, 1,4-phenylene-, toluylene- or naphthalene-1,5-di-isocyanates. Heating may be carried out at a temperature between 60‹ and 160‹ C., especially between 90‹ and 150‹ C. The solution used for coating may have a solids content between 30 and 70%. A second coating of different composition, e.g. a silicone resin or a modified urea resin, may be applied to the first coating.

    10.
    发明专利
    未知

    公开(公告)号：FR1425792A

    公开(公告)日：1966-01-24

    申请号：FR7314

    申请日：1965-02-27

    Applicant: BASF AG

    Inventor： WELZEL GERHARD ,  FAULHABER GERHARD

    IPC: B05D7/02 ,  C08J7/04 ,  C09D133/12 ,  D06N3/04 ,  D06N3/08

    Abstract: Compositions for use as a finishing coat on plasticized polyvinyl chloride films comprise aqueous dispersions of a copolymer of: (A) 40 to 90% by weight of methyl methacrylate; (B) 1 to 20% by weight of an ester of a polymerizable a ,b -ethylenically unsaturated carboxylic or di-carboxylic acid with a polyhydric alcohol bearing a chlorine atom in a -position to a free hydroxyl group; and (C) up to 59% by weight of one or more other ethylenically unsaturated, polymerizable compounds, the sum of the percentages of (A), (B) and (C) totalling 100. Examples of (B) are chlorohydrin esters of acrylic, methacrylic, fumaric and maleic acids with polyhydric alcohols such as 3 - chloropropanediol - (1,2); (2,3) - dichlorobutanediol - (1,4); 3 - chlorobutanetriol-(1,2,4); (1,4) - dichlorobutanediol - (2,3); 3-chloro - 2 - methyl propanediol - (1,2) and 3 - chloro - 2 - chloromethylpropanediol - (1,2). Examples of (C) are N-methylol methacrylamide, styrene, a -methyl styrene, vinyl acetate, acrylic or methacrylic acid, acrylo- or methacrylonitrile and acrylic esters of alcohols having 1 to 18 carbon atoms. The polymers are obtained by polymerization of the monomers in aqueous dispersion, the dispersions having a polymer content of 25 to 60% by weight. The dispersion may also include thickening agents such as vinylpyrrolidone-vinyl propionate copolymers; precondensates of formaldehyde with urea or melamine, e.g. dimethylol propyleneurea, dimethylolethylenurea, N,N1,N11, N111 - tetramethylolglyoxaldiureine, N,N1-dimethylol - glyoxalmonoureine or N,N1-dimethylolurea etherified with methanol; wetting agents such as sodium isopropylisohexyl-naphthalene sulphonate and buffers, e.g. an aqueous solution of NaHCO3 or NH4Cl.ALSO:Finishing coats on plasticised polyvinyl chloride films are produced by applying an aqueous dispersion of a copolymer of: (A) 40 to 90% by weight of methyl methacrylate (B) 1 to 20% by weight of an ester of a polymerizable a ,b -ethylenically unsaturated carboxylic or dicarboxylic acid with a polyhydric alcohol bearing a chlorine atom in a -position to a free hydroxyl group, and (C) up to 59% by weight of one or more other ethylenically unsaturated, polymerizable compounds, the sum of the percentages (A), (B) and (C) totalling 100, and drying the coating. Examples of (B) are chlorohydrin esters of acrylic, methacrylic, fumaric and maleic acids with polyhydric alcohols such as 3-chloropropanediol-(1,2), (2,3)-dichlorobutanediol-(1,4) 3-chlorobutanetriol-(1,2,4), (1,4)-dichlorobutanediol-(2,3), 3-chloro-2-methyl propanediol-(1,2) and 3-chloro-2-chloromethylpropanediol. Examples of C are acrylic or methacrylic acid, acrylo- or methacrylonitrile, acrylic esters of alcohols having 1 to 18 carbon atoms, n-methylol methacrylamide, styrene, a -methyl styrene, vinyl acetate. Thickening agents may be added to the dispersion which may be applied as a paste by a coating knife. Examples disclose vinylpyrrolidone copolymers as thickening agents. Precondensates of formaldehyde with urea or melamine may be added to the dispersion such as aminoplasts, e.g. dimethylolpropylenurea, dimethylolethylenurea, N, N\sv, N\yF, N\yG-tetramethylol glyoxaldiureine, N, N\sv-dimethylol-glyoxalmonoureine or N, N\sv-dimethylolurea etherified with methanol. In some of the Examples the plasticized polyvinyl chloride is in the form of a coating on a substrate such as cloth and is pregelled at 120 DEG to 130 DEG C, the finishing coat then spread on and gelling completed at 170 DEG to 180 DEG C, and finally embossed. A wetting agent is present in the aqueous dispersion in some cases.

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