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    • 6. 发明授权
    • Copolymers which contain hydroxyl groups and a method of producing them
    • 含羟基的共聚物及其制备方法
    • US6162886A
    • 2000-12-19
    • US15852
    • 1998-01-29
    • Gerhard BremerHermann KerberManfred KrummeOlaf LeyWerner StephanJorg Wabbels
    • Gerhard BremerHermann KerberManfred KrummeOlaf LeyWerner StephanJorg Wabbels
    • C09D133/14C08F220/28C08F220/32C08G18/62C09D161/24C09D175/04C08F20/26C08F20/00C08F20/10C08F24/00C08F120/00
    • C08F220/28C08F220/32C08G18/6258C09D175/04
    • This invention relates to copolymers which contain hydroxyl groups and which are based on vinyl esters of monocarboxylic acids, wherein the copolymers which contain hydroxyl groups have an OH number of 110-170 mg KOH/g, an acid number of 5-35 mg KOH/g and a number average molecular weight M.sub.n of 1500-8000 g/mole and are obtainable by the polymerisation of A) 5-20% by weight of one or more vinyl esters of saturated monocarboxylic acids, B) 10-30% by weight of one or more aromatic vinyl hydrocarbons, C) 41-55% by weight of hydroxy-functional, polymerisable, unsaturated monomers, and D) 0-40% by weight of further polymerisable, unsaturated monomers, wherein component C) contains C1) 40-70% by weight of one or more hydroxyalkyl esters of .alpha.,.beta.-unsaturated monocarboxylic acids, C2) 1-10% by weight of one or more lactones, and C3) 30-55% by weight of one or more reaction products of an .alpha.,.beta.-unsaturated monocarboxylic acid with a glycidyl ester of a saturated .alpha.,.alpha.-dialkylalkane-monocarboxylic acid or of a saturated .alpha.-alkylalkane-monocarboxylic acid, and the sum of components A) to D) and the sum of components C1) to C3) add up to 100% by weight in each case.
    • 本发明涉及含有羟基并基于一元羧酸的乙烯基酯的共聚物,其中含羟基的共聚物的OH值为110-170mg KOH / g,酸值为5-35mg KOH / g,数均分子量Mn为1500-8000g / mol,可通过A)5-20重量%的一种或多种饱和一元羧酸乙烯基酯的聚合获得,B)10-30重量% 一种或多种芳族乙烯基烃,C)41-55%重量的羟基官能的可聚合的不饱和单体,和D)0-40%(重量)的其它可聚合的不饱和单体,其中组分C)含有C 1〜 70重量%的α,β-不饱和一元羧酸的一种或多种羟烷基酯,C2)1-10重量%的一种或多种内酯,和C3)30-55重量%的一种或多种反应产物 α,β-不饱和一元羧酸与饱和α,α-di的缩水甘油酯 烷基烷烃 - 一元羧酸或饱和的α-烷基烷烃 - 一元羧酸,以及组分A)至D)和组分C1)至C3的总和)在每种情况下总计为100重量%。