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    • 10. 发明申请
    • RANDOMLY BRANCHED COPOLYMERS, PREPARATION THEREOF AND USE THEREOF AS LEVELLING AGENTS IN COATING SUBSTANCES
    • 随机分配的共聚物,其制备方法及其作为涂料中物质的增效剂
    • US20120196975A1
    • 2012-08-02
    • US13390999
    • 2010-07-17
    • Albert FrankRené NagelsdiekJürgen OmeisBernd GöbeltWojciech Jaunky
    • Albert FrankRené NagelsdiekJürgen OmeisBernd GöbeltWojciech Jaunky
    • C09D7/06C08F2/00
    • C08F220/18C08F210/14C08F220/06C08F222/1006
    • A process for preparing a randomly branched copolymer, by reacting the components (a) 10-98.9 mol % of at least one acrylic ester of a straight-chain, branched or cyclic C1-C22-alkyl monoalcohol, (b) 0.1-10 mol % of at least one polyethylenically unsaturated monomer and (c) optionally one or more monoethylenically unsaturated monomers other than acrylic esters of straight-chain, branched or cyclic C1-C22-alkyl monoalcohols and other than compounds of the formula (I), in the presence of (d) 1-10 mol % of at least one compound of the formula (I) H3C—CRaRc—CH2—CRa—CH2 (I) where Ra, Rb are each independently aryl, CN or COOR1 where R1═H, alkyl, aryl or aralkyl, and Rc=alkyl, aryl or aralkyl, and is the presence of at least one initiator of free-radical polymerization in a free-radical polymerization, where the stated molar proportions of components (a), (b), (c) and (d) add up to 100 mol %, and where the molar proportion of component (b) does not exceed the molar proportion of component (d), Copolymers obtainable by the process and use thereof as levelling agents in coating substances.
    • 通过使成分(a)10-98.9摩尔%的至少一种直链,支链或环状的C 1 -C 22 - 烷基一元醇的丙烯酸酯,(b)0.1-10摩尔的 %的至少一种多烯属不饱和单体和(c)任选的除直链,支链或环状的C 1 -C 22烷基一元醇的丙烯酸酯以外的任何一种或多种单烯属不饱和单体,而不是式 存在(d)1-10摩尔%的至少一种式(I)化合物H3C-CRaRc-CH2-CRa-CH2(I)其中Ra,Rb各自独立地为芳基,CN或COOR1,其中R1 = H, 烷基,芳基或芳烷基,Rc =烷基,芳基或芳烷基,并且是在自由基聚合中存在至少一种自由基聚合引发剂,其中组分(a),(b)的摩尔比例 ,(c)和(d)加到100摩尔%,组分(b)的摩尔比例不超过共聚物 组分(d),可通过该方法获得的共聚物和其用作涂料中的流平剂。