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    • 9. 发明授权
    • Method of using aqueous polymer dispersions as lamination adhesives for
glossy films
    • 使用聚合物水分散体作为光泽膜的层压粘合剂的方法
    • US5474638A
    • 1995-12-12
    • US201266
    • 1994-02-24
    • Klaus KohlhammerWilfried HusterWalter Dobler
    • Klaus KohlhammerWilfried HusterWalter Dobler
    • B32B27/00B32B7/12C08F28/00C08F220/10C08F220/12C08F220/26C08F220/28C08F228/02C08J5/12C09J133/04C09J133/06C09J133/08C09J129/02
    • B32B7/12C09J133/06
    • The invention relates to a method of using aqueous polymer dispersions based on acrylate-methacrylate copolymers as lamination adhesives for heat sealed glossy films, where the aqueous polymer dispersions have a solids content of from 20 to 65% by weight, the copolymer has a glass transition temperature of from -35.degree. to -10.degree. C., a K value of from 40 to 100 and a mean particle size of less than 200 nm, and the copolymer is obtainable by free-radical emulsion polymerization of:a) from 50 to 80 parts by weight of one or more comonomers from the group consisting of alkyl acrylates of alcohols having 2 to 10 carbon atoms,b) from 10 to 25 parts by weight of one or more comonomers from the group consisting of alkyl methacrylates of alcohols having 1 to 10 carbon atoms, andc1) from 0 to 10 parts by weight of one or more vinyl-aromatic comonomers,c2) from 0.1 to 4.0 parts by weight of one or more .alpha.,.beta.-unsaturated, monoolefinic carboxylic acids,c3) from 0 to 4.0 parts by weight of one or more .alpha..beta.-unsaturated, monoolefinic carboxamides,c4) from 0 to 8 parts by weight of one or more comonomers from the group consisting of hydroxyalkyl (meth)acrylates made from esters of acrylic acid or methacrylic acid and diols having 2 to 10 carbon atoms, andc5) from 0.1 to 4.0 parts by weight of one or more .alpha..beta.-unsaturated, monoolefinic compounds containing sulfonyl or sulfonate groups.
    • 本发明涉及使用基于丙烯酸酯 - 甲基丙烯酸酯共聚物的水性聚合物分散体作为热密封光泽膜的层压粘合剂的方法,其中聚合物水分散体的固体含量为20-65重量%,该共聚物具有玻璃化转变 温度为-35〜-10℃,K值为40〜100,平均粒径小于200nm,共聚物可通过自由基乳液聚合得到:a)从50〜 80重量份由具有2至10个碳原子的醇的丙烯酸烷基酯组成的组中的一种或多种共聚单体,b)10至25重量份的一种或多种共聚单体,其由具有1个 至少10个碳原子,和c1)0至10重量份的一种或多种乙烯基芳族共聚单体,c2)0.1至4.0份重量的一种或多种α,β-不饱和单烯烃羧酸,c3) 0〜4.0份重量 t的一种或多种αβ-不饱和单烯烃甲酰胺,c4)0至8份重量的一种或多种由丙烯酸或甲基丙烯酸的酯和二醇制成的(甲基)丙烯酸羟烷基酯的共聚单体,其具有2 至10个碳原子,和c5)0.1至4.0重量份的一种或多种含有磺酰基或磺酸酯基团的α不饱和单烯烃化合物。