首页> 外国专利> CONTACT ADHESIVE DISPERSION CONTAINING POLYMERS WHICH ARE PRODUCED BY STAGE POLYMERIZATION AND CONTAIN UREIDO GROUPS OR UREIDO-ANALOG GROUPS

CONTACT ADHESIVE DISPERSION CONTAINING POLYMERS WHICH ARE PRODUCED BY STAGE POLYMERIZATION AND CONTAIN UREIDO GROUPS OR UREIDO-ANALOG GROUPS

机译:由阶段聚合产生的含接触性分散胶的聚合物,并包含脲醛基或脲醛类似物基团

摘要

A description is given of a pressure-sensitive adhesive dispersion comprising a water-dispersed polymer P1 formed by emulsion polymerization. The polymer P1 is formed from a monomer mixture comprising (a) at least 40% by weight of C4 to C20 alkyl (meth)acrylates which when polymerized as homopolymers have a glass transition temperature of 30° C. or less, (b) at least 0.05% by weight of (meth)acrylate monomers having a substituent of the formula where X is CH2, O, NH or NR and R is a C1 to C4 alkyl group, (c) at least 0.1% by weight of acid monomers. The polymer P1 is prepared by polymerization in at least 2 stages, the glass transition temperature of a polymer from monomers of the first stage being lower by at least 20° C. than the glass transition temperature of a polymer from monomers of a later, second stage.
机译:对包含通过乳液聚合形成的水分散聚合物P1的压敏胶粘剂分散体进行描述。聚合物P1由包含(a)至少40重量%的(甲基)丙烯酸C 4至C 20烷基酯的单体混合物形成,当其作为均聚物聚合时,其玻璃化转变温度为30℃以下。至少0.05重量%的具有下式的取代基的(甲基)丙烯酸酯单体,其中X是CH 2,O,NH或NR,并且R是C 1 -C 4烷基,(c)至少0.1重量%的酸单体。聚合物P1通过至少两个阶段的聚合来制备,来自第一阶段的单体的聚合物的玻璃化转变温度比来自随后的第二阶段的单体的聚合物的玻璃化转变温度低至少20℃。阶段。

著录项

  • 公开/公告号EP2697323B1

    专利类型

  • 公开/公告日2019-04-03

    原文格式PDF

  • 申请/专利权人 BASF SE;

    申请/专利号EP20120713176

  • 发明设计人 GERST MATTHIAS;WULFF DIRK;CHRIST THOMAS;

    申请日2012-04-13

  • 分类号C09J4;C09J133;

  • 国家 EP

  • 入库时间 2022-08-21 12:31:35

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