Thermosetting acrylic powder coating compositions
    61.
    发明授权
    Thermosetting acrylic powder coating compositions 失效
    热固性丙烯酸粉末涂料组合物

    公开(公告)号:US4069274A

    公开(公告)日:1978-01-17

    申请号:US598946

    申请日:1975-07-25

    CPC分类号: C08G81/027

    摘要: A thermosetting powder coating composition comprising:A. a functional glycidyl group-containing graft copolymer ofI. 10 to 40 percent of a linear polyester having a number average molecular weight of 600 to 3,000 and containing one terminal carboxyl group andIi. 60 to 90 percent of acrylic copolymer of ii-a) 6.5 to 60 percent of at least one of glycidyl esters having the formula ##STR1## wherein R.sub.1 is hydrogen or methyl, ii-b) 10 to 93.5 percent of at least one of acrylic monomers having the formula CH.sub.2 .dbd.C(R.sub.2)COOR.sub.3 wherein R.sub.2 is hydrogen or methyl and R.sub.3 is alkyl having 1 to 14 carbon atoms, cyclohexyl or hydroxyalkyl having 1 to 4 carbon atoms, and ii-c) 0 to 65 percent of additional monomers selected from the group consisting of acrylonitrile, methacrylonitrile and styrenes having the formula ##STR2## wherein R.sub.4 is hydrogen or alkyl having 1 to 4 carbon atoms, said graft copolymer having a softening point of 70.degree. to 110.degree. C and a number average molecular weight of 2,000 to 30,000 and containing glycidyl group in an amount of 0.35 to 2.35 moles per kilogram of the graft copolymer; andB. at least one of polycarboxylic acids and anhydrides thereof in an amount of 0.6 to 1.2 moles in terms of carboxyl group per mole of the glycidyl group contained in the graft copolymer.

    摘要翻译: 一种热固性粉末涂料组合物,其包含:

    Stable dispersion of vinyl polymer
    62.
    发明授权
    Stable dispersion of vinyl polymer 失效
    乙烯基聚合物的稳定分散体

    公开(公告)号:US3956225A

    公开(公告)日:1976-05-11

    申请号:US379053

    申请日:1973-07-13

    摘要: A stable dispersion of vinyl polymer dispersed in an organic dispersion medium, said dispersed vinyl polymer being prepared from a vinyl monomer in said dispersion medium in the presence of a dispersion stabilizer which is soluble in said dispersion medium, and said dispersion stabilizer being a copolymer having comb structure which is obtained by copolymerization of vinyl monomer and aliphatic chain monomer in a solvent, further said aliphatic chain monomer being prepared by half-esterification between an alkyl succinic anhydride and a hydroxyalkyl ester of acrylic acid or methacrylic acid.

    摘要翻译: 分散在有机分散介质中的乙烯基聚合物的稳定分散体,所述分散的乙烯基聚合物由可溶于所述分散介质的分散稳定剂存在下在所述分散介质中由乙烯基单体制备,所述分散体稳定剂是具有 通过乙烯基单体和脂肪族链单体在溶剂中共聚获得的梳状结构,进一步所述脂肪族链单体通过烷基琥珀酸酐与丙烯酸或甲基丙烯酸的羟烷基酯进行半酯化制备。