Particulate multiphase polymers
    18.
    发明授权
    Particulate multiphase polymers 失效
    颗粒多相聚合物

    公开(公告)号:US4861831A

    公开(公告)日:1989-08-29

    申请号:US154849

    申请日:1988-02-10

    CPC分类号: C08G77/442 Y10S525/902

    摘要: Particulate, multiphase polymers which have a core (A) and an overlying shell (B) wherein the core (A) is an organic, resinous polymer comprising polymerized olefinically unsaturated monomer units having softening point temperatures of at least 30.degree. C. and wherein the shell (B) is an organopolysiloxane are obtained by producing in a first stage an organic resinous polymer in latex form by emulsion polymerization and, in a second stage, the latex particles of the first stage are surrounded with a shell (B) organopolysiloxane by polymerizing low molecular weight organosiloxanes in the presence of the latex particles of the first stage.

    摘要翻译: 具有芯(A)和上覆壳(B)的颗粒状多相聚合物,其中芯(A)是包含软化点温度为至少30℃的聚合的烯属不饱和单体单元的有机树脂聚合物,其中 壳(B)是一种有机聚硅氧烷,通过在第一阶段中通过乳液聚合制备胶乳形式的有机树脂聚合物而获得,在第二阶段中,第一阶段的胶乳颗粒被壳(B)有机聚硅氧烷包围,通过聚合 低分子量有机硅氧烷在第一阶段的胶乳颗粒存在下。