发明名称 |
Process for producing high impact and weather resistant graft copolymers |
摘要 |
High impact and weather resistant graft copolymers are produced by a two-stage process comprising (I) carrying out bulk or suspension polymerization of a mixture obtained by impregnating a substantially non-polar rubber-like polymer having iodine value of 2 to 40 with a mixture of an aromatic vinyl compound and a polar vinyl compound in the presence of a polymerization initiator to yield a graft copolymer, and (II) subjecting a mixture obtained by dispersing with partly dissolving (or impregnating) the graft copolymer in (or with) a mixture of an aromatic vinyl compound and a polar vinyl compound to bulk, suspension or bulk-suspension polymerization in the presence of a polymerization initiator.
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申请公布号 |
US4154777(A) |
申请公布日期 |
1979.05.15 |
申请号 |
US19770828093 |
申请日期 |
1977.08.26 |
申请人 |
HITACHI CHEMICAL CO LTD |
发明人 |
ERA, SUSUMU;ITO, TATSUO;KAKEFUDA, KOICHI;KOGAME, HISASHI;SHOJI, FUSAJI;SUZUE, KIYOYUKI |
分类号 |
C08F255/00;C08F285/00;(IPC1-7):C08F255/04 |
主分类号 |
C08F255/00 |
代理机构 |
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代理人 |
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