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    Improvements in the crosslinking of polymers
    6.
    发明专利
    Improvements in the crosslinking of polymers 未知

    公开(公告)号：GB862869A

    公开(公告)日：1961-03-15

    申请号：GB3905959

    申请日：1959-11-18

    Applicant: BASF AG

    Inventor： NEUFELD ELSA ,  POHLEMANN HEINZ ,  BOEHMER GUSTAV

    IPC: C08F8/30 ,  C08F220/44 ,  C09D5/25 ,  C09D133/06 ,  C09D133/20

    Abstract: 862,869. Cross-linking copolymers of ethylenically unsaturated compounds. BADISCHE ANILIN- & SODA-FABRIK A.G. Nov. 18, 1959 [Nov. 28, 1958], No. 39059/59. Class 2(6). Copolymers of at least one α, #-ethylenically unsaturated carboxylic acid, at least one α, #- ethylenically unsaturated carboxylic acid nitrile and at least one α, #-ethylenically unsaturated carboxylic acid ester which contain 0À5 to 12% by weight of said acid component and at least 30% by weight of said nitrile component are cross-linked by reacting with a compound of formula: where R 1 , R 2 , R 4 and R 5 represent hydrogen, alkyl radicals or methylol groups, R 3 represents - (CH 2 )xin which x is 0 to 12, -CH=CH-, arylene or cycloalkylene, m is 3 to 11, n is 4 to 10 and y is 1 or 2. The monomers may be acrylic, methacrylic and crotonic acids, nitriles and esters of these acids with methanol, ethanol, propanol, butanol, hexanol, octanol and cyclohexanol. Cross-linking may be effected with N, N 1 -bismethylol diamides of oxalic, malonic, glutaric, succinic, adipic, suberic, sebacic, heptadecane dicarboxylic, phthalic, isophthalic, terephthalic, diphenyl dicarboxylic, maleic and fumaric acids; N-methylol substituted lactams of α-aminobutyric, α-aminovaleric, α-aminocaproic, α- aminocaprylic, α aminooenanthic and α-aminooundecanic acids; and the 2, 21-methylene and 2, 2 1 -ethylene bis caprolactams, their N-methylol derivatives and the corresponding derivatives of caprylic, oenanthic and undecanic lactams. The polymers may be prepared by polymerisation in aqueous media in the presence of catalysts, e.g. potassium persulphate, and emulsifiers, e.g. sodium octylphenylsulphonate and the sodium sulphonate of C 15 paraffins. Examples describe the cross-linking of acrylonitrile-butyl acrylateacrylic acid terpolymers with (1, 2 and 3) N, N 1 - bis-methyloladipamide, (4) 2, 2 1 -methylene-biscaprolactam, (5) N-methylolcaprolactam and (6) N, N 1 -bis-methylol-2, 2 1 -methylene-biscaprolactam; and of (2) acrylonitrile-ethylhexyl acrylate-methacrylic acid terpolymer, methacrylonitrile-isobutyl acrylate-acrylic acid terpolymer and acrylonitrile-butyl acrylate-butyl methacrylate-acrylic acid copolymer with N, N 1 -bismethyloladipamide. The products may be used in making films and coatings, e.g. on metal, wood, glass, paper, fabrics and leather, and lacquers, e.g. in solvents such as cyclohexanone, glycol, dimethylformamide, dimethyl sulphoxide and tetramethylene sulphone.

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