发明名称 |
PROCESS FOR THE MANUFACTURE OF IMPACT RESISTANT STYRENE COMPOUNDS |
摘要 |
<p>of the disclosure: There is disclosed a process for preparing impact resistant styrene graft copolymers having improved properties, especially an excellent combination of toughness, hardness and gloss. They are obtained by polymerizing a solution of an ethylene-propylene-tercomponent rubber in a mixture of styrene and acrylonitrile in one step (mass polymerization) or two steps (mass/suspension polymerization) in the presence of an organic peroxide and subjecting the copolymer obtained to a shear extrusion yielding rubber particles with an average size below 1 .mu.m and thereafter crosslinking said rubber particles, care being taken that an amount of 0.02 to 0.5 weight % of a cross-linking initiator is present when cross-linking starts.</p> |
申请公布号 |
CA1090500(A) |
申请公布日期 |
1980.11.25 |
申请号 |
CA19760268341 |
申请日期 |
1976.12.21 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
GORDON, WOLFGANG;HOFMANN, HANS J.;KRUGER, KLAUS;SCHUDDEMAGE, HORST-DIETER |
分类号 |
C08F255/00;C08F255/04;C08F255/06;(IPC1-7):08L51/04 |
主分类号 |
C08F255/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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