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    Binder and process for flocking fibrous material
    215.
    发明专利
    Binder and process for flocking fibrous material 未知

    公开(公告)号：GB1011810A

    公开(公告)日：1965-12-01

    申请号：GB2553963

    申请日：1963-06-27

    Applicant: BASF AG

    Inventor： CRAEMER KARL ,  SCHWINDT WOLFGANG ,  WOLF HANS ,  WILHELM HANS ,  ZAUNBRECHER HORST

    IPC: D04H11/00 ,  D06M15/263 ,  D06M15/29 ,  D06M23/10

    Abstract: A binder for flocking fibrous material comprises a thickened aqueous dispersion of a self-cross-linking copolymer and from 3 to 30% by weight of the total binder of an organic liquid which exerts a swelling, but no dissolving, action on the copolymer. Preferred copolymers are those made from an alkyl acrylate or methacrylate, acrylonitrile or methacrylonitrile N-methylol acrylamide or methacrylamide, an unsaturated carboxylic acid and, optionally, other monomers. Suitable organic liquids are aliphatic halohydrocarbons, aromatic hydrocarbons, ketones, esters and amides. Also present in the compositions may be water-dispersible aminoplast condensates, and catalysts for the cross-linking of the copolymers and condensation of the aminoplasts. Coatings formed from the compositions are cross-linked by heating above 80 DEG C. The examples describe the following compositions: (1) an ammonia-neutralized aqueous dispersion of a copolymer of n-butyl acrylate, ethyl acrylate, acrylonitrile, acrylic acid and N-methylolmethacrylamide containing trichloroethylene, dimethylolurea dimethyl ether urea, a sperm oil alcohol/ethylene oxide condensate and ammonium thiocyanate; (2) an ammonia-neutralized aqueous dispersion of a copolymer of isobutyl acrylate, acrylonitrile, N-methylolacrylamide and acrylic acid containing perchloroethylene, the dimethylol compound of butanediol diurethane, a sperm oil alcohol/ethylene oxide condensate and ammonium thiocyanate; (3) an ammonia-neutralized aqueous dispersion of a copolymer of n-butyl acrylate, styrene, acrylonitrile, acrylic acid and the N-methylol ethyl ether of methacrylamide, containing cyclohexanone, a urea-formaldehyde condensate, methyl cellulose, a sperm oil alcohol/ethylene oxide condensate and diammonium phosphate; and (4) an ammonia-neutralized aqueous dispersion of a copolymer of n-butyl acrylate, methyl acrylate, acrylonitrile, divinyl benzene N-methylolmethacrylamide and acrylic acid containing a urea-formaldehyde condensate, trichloroethylene, methyl cellulose, urea, ammonium chloride and ammonium thiocyanate. Specification 1,011,809 is referred to.ALSO:Fabrics are flocked by applying thereto an adhesive comprising a thickened aqueous dispersion of a self-crosslinking copolymer and from 3-30% by weight of the total composition of an organic liquid which exerts a swelling, but no dissolving, action on the copolymer (see Division C3), flocking the coated fabric, and then heating the assembly at a temperature greater than 80 DEG C. to cross-link the copolymer. Also present in the compositions may be water-dispersible aminoplast condensates, and catalysts for the cross-linking of the copolymers and condensation of the aminoplasts. The examples describe the following processes: (1) applying to jute fabric and bonded cotton non-woven fabric an ammonia-neutralized aqueous dispersion of a copolymer of n-butyl acrylate, ethyl acrylate, acrylic acid and N-methylolmethacrylamide containing trichloroethylene and dimethylolurea dimethyl ether, flocking the coated fabrics with nylon-6 flock, and heating at 130 DEG C., (2) applying to cotton cloth, which has been given a waterproof finish with paraffin emulsion, an ammonia-neutralized aqueous dispersion of a copolymer of isobutyl acrylate, acrylonitrile, N-methylolacrylamide and acrylic acid containing the dimethylol compound of butanediol diurethane and perchloroethylene, flocking the coated cloth with viscose flock, and heating at 140 DEG C., (3) applying to jute fabric, which has been coated with polyvinyl chloride paste and then gelled, an ammonia-neutralized copolymer of n-butyl acrylate, styrene, acrylonitrile, the N-methylol ethyl ether of methacrylamide and acrylic acid containing a urea-formaldehyde condensate and cyclohexanone, flocking the fabric with polyamide flock and heating at 120 DEG C., and (4) applying to a cotton fabric, which has been laminated with polyvinyl chloride foam, an ammonia-neutralized aqueous dispersion of a copolymer of n-butyl acrylate, methyl acrylate, acrylonitrile, acrylic acid, N-methylol methacrylamide and divinyl benzene containing a urea-formaldehyde condensate and trichloroethylene, flocking the fabric with polyamide flock, and heating at slightly above 80 DEG C. Specification 1,011,809 is referred to.

    Binder and process for flocking surfaces
    216.
    发明专利
    Binder and process for flocking surfaces 未知

    公开(公告)号：GB1011809A

    公开(公告)日：1965-12-01

    申请号：GB2553863

    申请日：1963-06-27

    Applicant: BASF AG

    Inventor： CRAEMER KARL ,  SCHWINDT WOLFGANG ,  WILHELM HANS ,  WOLF HANS ,  ZAUNBRECHER HORST

    IPC: D04H11/00 ,  D06M15/39

    Abstract: Binders for flocking surfaces comprise, for each 100 parts by weight: (a) 20 to 45 parts by weight of one or more copolymers prepared by polymerization in an aqueous dispersion at a maximum pH value of 5 of a mixture of monomers consisting of: (i) 40-80% by weight of one or more C2-C4 acrylates and/or methacrylates, (ii) 10-35% by weight of acrylonitrile and/or methacrylonitrile, (iii) 3-6% by weight of N-methylol acrylamide and/or methacrylamide, (iv) 0.5-5% by weight of a polymerizable carboxylic acid, and (v) 0-40% by weight of one or more other unsaturated compounds, the copolymer being thickened by the addition of an alkaline substance; (b) 3 to 30 parts by weight of a water-soluble or -dispersible aminoplast-forming substance containing N-methyl or N-methylol ether groups; (c) 0.1-5 parts of at least one acidic condensation catalyst; and, optionally, (d) conventional amounts of one or more conventional flock binder additives, the excess above the total quantity included in (a)-(d) needed to give a total of 100 parts by weight representing the quantity of water present in the aqueous dispersion. The examples describe compositions in which there are used as components (a) ammonia - neutralized aqueous dispersions of n - butyl acrylate/ethyl acrylate/acrylonitrile/N - methylolmethacrylamide/acrylic acid, isobutyl acrylate/acrylonitrile/N - methylolacrylamide/methacryli acid, and n-butyl acrylate/acrylonitrile/styrene/N - methylolmethacryl amide/acrylic acid copolymers, as components (b) dimethylolurea dimethyl ether and the dimethylol compound of butanedioldiurethane, as components (c) ammonium nitrate and thiocyanate, and as components (d) a sperm oil alcohol/ethylene oxide condensate and the sodium salt of the acid sulphate thereof, cellulose methyl ether, dioctyl phthalate, urea, an azo dyestuff, and kerosene. The compositions are cross-linked, after a flocking operation, by heating at temperatures above 90 DEG C.ALSO:Flocked surfaces are produced by applying fibrous flock to the surface of a porous material on which has been deposited a binder comprising, in an aqueous medium, (a) a copolymer of (i) one or more C2-C4 acrylates and/or methacrylates, (ii) acrylonitrile and/or methacrylonitrile, (iii) N-methylol acrylamide and/or methacrylamide, (iv) an unsaturated carboxylic acid, and, optionally, (v) one or more other unsaturated compounds, (b) a water-soluble or -dispersible aminoplast-forming substance containing N-methylo or N-methylol ether groups, (c) an acidic condensation catalyst, and, optionally, (d) conventional flock binder additives (see Division C3). The examples describe flocking the surfaces of jute and cotton fabrics with nylon-6 fibres, and surfaces of polyamide, polyester, viscose rayon and cellulose acetate fabrics with viscose rayon fibres, the fabric surfaces being printed with compositions in which there are used as components (a) ammonia-neutralized aqueous dispersions of n-butyl acrylate/ethyl acrylate/acrylonitrile/N-methylolmethacrylamide/acrylic acid, isobutyl acrylate / acrylonitrile / N-methylolacrylamide/methacrylic acid, and n-butyl acrylate/acrylonitrile/styrene/N-methylolacrylamide/acrylic acid copolymers, as components (b) dimethylol urea dimethyl ether and the dimethylol compound of butanedioldiurethane, as components (c) ammonium nitrate and thiocyanate, and as components (d) a sperm oil alcohol/ethylene oxide condensate and the sodium salt of the acid sulphate thereof, cellulose methyl ether, dioctyl phthalate, urea, an azo dyestuff and kerosene. After flocking, the binders are cross-linked by heating to temperatures above 90 DEG C.

    Printing pastes and their use
    217.
    发明专利
    Printing pastes and their use 未知

    公开(公告)号：GB1011041A

    公开(公告)日：1965-11-24

    申请号：GB3255962

    申请日：1962-08-24

    Applicant: BASF AG

    Inventor： CRAEMER KARL ,  SCHWINDT WOLFGANG ,  PENNING ERNST ,  WILHELM HANS

    IPC: C08F20/58 ,  D06P1/44 ,  D06P1/60

    Abstract: Copolymers having N-methylolcarbonamide groups are prepared in presence of a sulphate of a polyoxyalkyl compound containing a hydrophobic radical and at least five moles of ethylene and/or propylene oxides. In examples, copolymers are prepared from the specified monomers, the polyoxyalkyl compound the sulphate of which is used being indicated in parentheses:-(1) 50% butyl acrylate, 46% styrene, 4% N-methylolmethacrylamide (sperm oil alcohol/25 moles ethylene oxide); (2) 66% butyl acrylate, 20% acrylonitrile, 10% methyl acrylate, 4% N-methylolacrylamide (iso-octylphenol/10 moles ethylene oxide); (3) 55% butyl acrylate, 20% vinyl propionate, 20% acrylonitrile, 5% N-methylol-methacrylamide (isobutyl - beta - naphthol/10 moles ethylene oxide); (4) 44% butyl acrylate, 30% butadiene, 20% acrylonitrile, 6% N-methylolmethacrylamide (nonylphenol/20 moles ethylene oxide).ALSO:A paste for printing fibrous material comprises as binder a copolymer having N-methylolcarbonamide groups which has been prepared in presence of a sulphate of a polyoxyalkyl compound containing a hydrophobic radical and at least five moles of ethylene or/and propylene oxides.

    Aqueous dispersions of modified copolymers
    220.
    发明专利
    Aqueous dispersions of modified copolymers 未知

    公开(公告)号：GB988460A

    公开(公告)日：1965-04-07

    申请号：GB3789363

    申请日：1963-09-26

    Applicant: BASF AG

    Inventor： KESSLER HANS JUERGEN ,  WOLF HANS ,  WILHELM HANS

    IPC: C08F2/08 ,  C08F2/22 ,  C08F8/14

    Abstract: Aqueous dispersions of modified copolymers are obtained by reacting, at a pH value between 3 and 11 and at temperatures of 10 DEG to 70 DEG C., 1,2-epoxy-3-chloropropane with an aqueous dispersion of a copolymer prepared from at least one a -ethylenically unsaturated carboxylic acid (I) and at least one other ethylenically unsaturated compound (II) which is copolymerizable therewith, the molar ratio of 1,2-epoxy-3-chloropropane to the total carboxyl groups in the copolymer being 1:1 or less than 1:1. Acid monomers (I) specified are acrylic, methacrylic, maleic and fumaric acids and mixtures thereof. Comonomer (II) specified are esters of acrylic and methacrylic acid with alkanols having one to eight carbon atoms, acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, N - (hydroxymethyl) - acrylamide, N - (hydroxymethyl) - methacrylamide, N - (2 - oxahexyl) - acrylamide, N - (2-oxahexyl)-methacrylamide, vinyl acetate, vinyl propionate, vinyl butyrate, styrene, a -methylstyrene, o-, m- and p-methylstyrene, butadiene, vinyl butyl ether, vinyl chloride and vinylidene chloride. The modified copolymer dispersions can be crosslinked with basic compounds, e.g. sodium and/or potassium hydroxide, even at room temperature, and may be used for adhesives, coatings and impregnations for textiles.

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