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    • 4. 发明授权
    • Coating agents
    • 涂层剂
    • US5356968A
    • 1994-10-18
    • US3436
    • 1993-01-12
    • Robert RupanerMichael W. MuellerMaximilian AngelKlaus Boehlke
    • Robert RupanerMichael W. MuellerMaximilian AngelKlaus Boehlke
    • C08F2/26C08F2/30C08F20/10C08F20/52C08F212/00C08F212/08C08F218/02C08F218/04C08F220/04C08F220/10C08F220/12C08F220/18C08F220/42C08F220/44C08F220/56C08F222/02C08F246/00C09D125/00C09D125/02C09D125/08C09D131/02C09D133/02C09D133/04C09D133/08C09D133/26C09D157/04C09G1/16C08K5/41
    • C09G1/16C08F2/26C08F220/12C09D125/02C09D133/04
    • A coating agent comprises an emulsion polymer obtained by free radical emulsion polymerization of a monomer mixture ofA) from 15 to 60% by weight of an acrylic or methacrylic ester having a primary or secondary C.sub.1 -C.sub.18 -alkyl group, as alcohol radical,B) from 15 to 50% by weight of an acrylic or methacrylic ester having tertiary C.sub.4 -C.sub.8 -alkyl group or a C.sub.6 -C.sub.12 -radical that is an alicyclic or aromatic group as alcohol group a methacrylic ester having a primary or secondary C.sub.2 -C.sub.4 -alkyl group as alcohol radical, acrylo- or methacrylonitrile, acryl- or meth-acrylamide, a vinyl ester of a C.sub.1 -C.sub.8 - carboxylic acid,C) from 10 to 50% by weight of one or more C.sub.8 -C.sub.12 - aromatic vinyl compounds,D) from 8 to 20% by weight of an olefinically unsaturated C.sub.3 -C.sub.5 -mono- or C.sub.4 -C.sub.8 -dicarboxylic acid or anhydride, andE) from 0 to 5% by weight of further copolymerizable monomers having functional groups in the presence of from 0.1 to 10% by weight, based on the monomer mixture of A to E, of an emulsifier mixture of(a) one or more anionic emulsified of formula I where ##STR1## M is an alkali metal or ammonium and X and Y are identical or different and each is O--(C.sub.n H.sub.2n O).sub.m --R, OM or NHR, wherein at least one of the radicals X and Y is O--(C.sub.n H.sub.2n O).sub.m --R or NHR, and(b) from 0.1 to 10 parts by weight per part by weight of (a) of at least one further different anionic emulsifier.
    • 涂层剂包括通过自由基乳液聚合获得的乳液聚合物,A单体混合物为15至60重量%的具有伯或仲C 1 -C 18烷基的丙烯酸或甲基丙烯酸酯,作为醇基,B )15至50重量%的具有叔C4-C8烷基的丙烯酸或甲基丙烯酸酯或作为醇基的脂环族或芳族基团的C 6 -C 12基团具有伯或仲C 2 -C 4的甲基丙烯酸酯 - 烷基作为醇基,丙烯酰基或甲基丙烯腈,丙烯酰基或甲基丙烯酰胺,C1-C8-羧酸的乙烯基酯,C)10至50重量%的一种或多种C 8 -C 12 - 芳族乙烯基 化合物,D)8至20重量%的烯属不饱和C 3 -C 5 - 单 - 或C 4 -C 8 - 二羧酸或酸酐,和E)0至5重量%的其它可共聚单体,其具有官能团 基于A至E的单体混合物,乳化剂mixtu的存在为0.1至10重量% (a)一种或多种式I的乳化的式I,其中IM是碱金属或铵,X和Y是相同或不同的,并且各自是O-(C n H 2n O)m R,OM或NHR,其中至少一个 的基团X和Y是O-(C n H 2n O)m R或NHR,和(b)0.1至10重量份每重量份的(a)至少一种其它不同的阴离子乳化剂。