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    15.
    发明专利
    未知

    公开(公告)号：DE1105173B

    公开(公告)日：1961-04-20

    申请号：DEB0055992

    申请日：1959-12-22

    Applicant: BASF AG

    Inventor： KESSLER DR HANSJUERGEN ,  PENNING DR ERNST ,  WILHELM DR HANS ,  REINHARD DR HANS

    IPC: C08F220/28 ,  C08F222/18 ,  D06M15/263

    Abstract: A method of making an easily cross-linkable polymer comprises copolymerizing (1) 0,5-50% by weight of an ester of a polymerizable a ,b -ethylenically unsaturated mono- or di-carboxylic acid with a dihydric or higher polyhydric alcohol which bears a chlorine atom at the a -position to a free hydroxyl group and (2) 99,5-50% by weight of one or more unsaturated polymerizable compounds. The esters (1) may be esters of acrylic, methacrylic, maleic or fumaric acid with 3-chlorpropane-diol-(1,2), 2,3-dichlorbutane-diol-(1,4), 3-chlorbutane-triol-(1,2,4), 1,4-dichlorbutane-diol-(2,3), 3-chlor-2-methylpropane-diol-(1,2), or 3-chlor-2-chlormethylpropane-diol-(1,2). Compounds (2) can be acrylic, methacrylic or maleic acid, methyl, ethyl, or butyl acrylate or methacrylate, acrylamide, methacrylamide, acrylonitrile, vinyl acetate, vinyl propionate, acrolein, methyl allyl ketone, isopropenyl ketone, allyl or methallyl alcohol, allyl methyl and ethyl ethers, allyl acetate or propionate, ethylene, propylene, butadiene, vinyl methyl or ethyl ether, vinyl chloride, vinylidene chloride or cyanide, N-vinyl pyrrolidone, N-vinyl carbazole, styrene or mono- or di-methyl styrene. The copolymers may be prepared by bulk, solution, emulsion, suspension or precipitation polymerization, using conventional catalysts, such as peroxides, azo compounds, or redox systems, for example potassium persulphate and azo bis isobutyronitrile. The polymers can be cross-linked at room temperatures by agents which split off hydrogen halide, such as metal oxides, hydroxides and alcoholates. These polymers can be mixed with other polymers.

    17.
    发明专利
    未知

    公开(公告)号：DE1086208B

    公开(公告)日：1960-08-04

    申请号：DEB0050970

    申请日：1958-11-05

    Applicant: BASF AG

    Inventor： REINHARD DR HANS ,  PENNING DR ERNST

    IPC: D04H1/587 ,  D04H1/645 ,  D06M15/39

    Abstract: 880,993. Agglutinated fibrous fabrics; impregnated paper &c. BADISCHE ANILIN- & SODA-FABRIK A.G. Oct. 30, 1959 [Nov. 5, 1958], No. 36863/59. Classes 96 and 140. A process for the production of a bonded fibre fleece comprises employing as a binder a copolymer derived from 1 to 20% by weight of an alpha-beta unsaturated carboxylic acid amide substituted on nitrogen by at least one methylol group, and 80 to 99% by weight of at least one other polymerizable compound, the fleece containing the binder being heated for a short time, e.g. 3 to 10 minutes, at over 60‹ C. Fibrous materials mentioned are cotton, rayon, cellulose acetate, wool, sisal, polyamides, polyvinyl chloride, polyacrylonitrile, polyterephthalic acid esters, rock wool, slag wool, glass fibres and asbestos fibres, and the polymerizable compound may be an ethylenically unsaturated monomer, e.g. acrylic and methacrylic acid esters, e.g. butyl acrylate, vinyl esters and ethers, styrene, acrylonitrile, and olefines, or mixtures thereof. The methylol compound may be N-methylolamide of acrylic, methacrylic or maleic acid. The binder may be applied as an aqueous emulsion or dispersion, or dissolved in an organic solvent, or strewn in the solid state on the fleece. If the binder is in liquid form, the heating operation may be in two stages, the first at 60‹ C. to 100‹ C., the second at 80‹ C. to 160‹ C. The fleece, prior to impregnating, may be formed by carding, and may be laminated so that the fibres in successive layers lie at an angle to each other, or a random arrangement of fibres may be employed, e.g. by suspending in water which is sucked off on a sieve. Impregnation may be carried out by spraying or soaking, and the liquid may be supplied between two fleeces as they are passed between two rollers under light pressure the fleeces having undergone a preliminary consolidation prior to impregnation. Compounds may be added to the binder to accelerate the reaction, e.g. phosphoric acid, paratoluenesulphonic acid, acetic acid, AlCl 3 , NH 4 NO 3 , NH 4 Cl, and ammonium oxalate, and soluble dyestuffs, colour pigments, plasticizers, stabilizers and optical brightening agents may be added to the binder. Four examples are described in detail and one describes the passing of the impregnated fleece through a bath consisting of melamine-urea precondensate and ammonium oxalate.

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