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    POLYMERS FOR DIRT-REPELLENT COATINGS
    56.
    发明申请
    POLYMERS FOR DIRT-REPELLENT COATINGS 审中-公开

    公开(公告)号：US20180148594A1

    公开(公告)日：2018-05-31

    申请号：US15570789

    申请日：2016-04-27

    申请人： WACKER CHEMIE AG

    发明人： Abdulmajid HASHEMZADEH ,  Armin HOFFMANN

    IPC分类号： C09D131/02 ,  C09D143/04 ,  C09D5/02

    摘要： The present invention relates to aqueous dispersions or polymer powders which are redispersible in water, based on a) 2-ethylhexylacrylate, b) n-butylacrylate, c) one or more ethylenically unsaturated monomers, the homopolymer of which has a glass transition temperature Tg of ≥50° C., d) optionally one or more ethylenically unsaturated monomers containing acid groups, e) optionally one or more ethylenically unsaturated monomers containing silane groups and f) optionally one or more additional ethylenically unsaturated monomers which are different to the aforementioned monomers, characterised in that the polymers are based on 2-ethylhexylacrylate from 60 to 99 wt % and on n-butylacrylate from 1 to 40 wt %, each relative to the total weight of ethylhexylacrylate a) and n-butylacrylate b).

    Use of copolymers stabilized with a protective colloid in cement-free or low-cement coating materials
    59.
    发明申请
    Use of copolymers stabilized with a protective colloid in cement-free or low-cement coating materials 审中-公开
    在无水泥或低水泥涂层材料中使用用保护胶体稳定的共聚物

    公开(公告)号：US20050250899A1

    公开(公告)日：2005-11-10

    申请号：US11112778

    申请日：2005-04-22

    申请人： Andreas Bacher ,  Hans-Peter Weitzel ,  Franz Jodlbauer ,  Harald Zeh

    发明人： Andreas Bacher ,  Hans-Peter Weitzel ,  Franz Jodlbauer ,  Harald Zeh

    IPC分类号： C04B24/26 ,  C04B28/14 ,  C08F218/10 ,  C08L31/04 ,  C09D5/03 ,  C09D7/12 ,  C09D123/08 ,  C09D131/02 ,  C09D131/04 ,  C08L31/02

    CPC分类号： C09D131/02 ,  C08L31/04 ,  C08L2666/04

    摘要： The present invention relates to the use of copolymers stabilized with a protective colloid, in the form of their polymer powders redispersible in water or in the form of their aqueous polymer dispersions, in cement-free or low-cement coating materials, wherein the copolymer is obtainable by free radical polymerization, in water, of a) from 35 to 65% by weight of vinyl acetate, b) from 5 to 20% by weight of ethylene, c) from 40 to 70% by weight of vinyl esters of alpha-branched, tertiary monocarboxylic acids having 5 to 15 carbon atoms, and optionally d) from 0.1 to 10% by weight of further copolymerizable, ethylenically unsaturated comonomers, the data in % by weight totaling 100% by weight.

    摘要翻译： 本发明涉及在水泥或低水泥涂层材料中以保护胶体稳定的共聚物的形式，其聚合物粉末可再分散于水或其水性聚合物分散体形式，其中共聚物为 可通过自由基聚合在水中获得a）35至65重量％的乙酸乙烯酯，b）5至20重量％的乙烯，c）40至70重量％的α-烯烃的乙烯基酯， 具有5至15个碳原子的支链叔碳酸单羧酸，以及任选的d）0.1至10重量％的另外可共聚的烯键式不饱和共聚单体，其重量百分比为100重量％。