Modified EPDM rubbers, the production thereof and the use thereof for
the production of impact-resistant vinyl polymers
    5.
    发明授权
    Modified EPDM rubbers, the production thereof and the use thereof for the production of impact-resistant vinyl polymers 失效
    改性EPDM橡胶,其制备及其用于生产耐冲击乙烯基聚合物的用途

    公开(公告)号:US4686263A

    公开(公告)日:1987-08-11

    申请号:US757724

    申请日:1985-07-22

    摘要: The production of impact-resistant polystyrene with EPDM simplifies the process and produces improved products if a modified ethylene/propylene rubber consisting of styrene/butadiene- or diene polymers, ethylene, optionally propylene and an unconjugated diene are used as the elastifying component.The modified EPDM rubbers consisting of (a) from 20 to 90% by weight of ethylene units, (b) from 1 to 25% by weight of units of a butadiene/styrene copolymer containing a quantity of from 10 to 90% by weight of styrene, (c) from 0 to 10% by weight of units of an unconjugated diolefin and (d) C.sub.3 -C.sub.18 .alpha.-monolefin units to make up the difference to 100% by weight, are a further subject of this invention.

    摘要翻译: 如果使用由苯乙烯/丁二烯或二烯聚合物,乙烯,任选的丙烯和非共轭二烯组成的改性乙烯/丙烯橡胶作为弹性组分,则使用EPDM的耐冲击聚苯乙烯的生产简化了工艺并产生改进的产物。 由(a)20至90重量%的乙烯单元组成的改性EPDM橡胶,(b)1至25重量%的丁二烯/苯乙烯共聚物单元,其含量为10至90重量% 苯乙烯,(c)0至10重量%的未共轭二烯烃单元和(d)C3-C18α-烯烃单元以弥补100重量%的差异,是本发明的另一个主题。