发明名称 |
Process for the preparation of rubber-containing graft copolymer particles |
摘要 |
Rubber-containing graft copolymer particles excellent in powder properties are prepared by a process comprising mixing, with 100 parts by weight (as solid content) of rubber-containing graft copolymer (A) in a state of slurry, 0.1 to 10 parts by weight of a rigid non-elastic multi-stage polymer (B), in a state of slurry, consisting of 30 to 80% by weight of a (co)polymer component comprising 40 to 100% by weight of methyl methacrylate and 0 to 60% by weight of one or more other monomers copolymerizable therewith being polymerized at least in the first stage and 5 to 70% by weight of a (co)polymer component comprising 70 to 100% by weight of methyl methacrylate and 0 to 30% by weight of one or more other monomers copolymerizable therewith being polymerized in the final stage, the total amount of the (co)polymer components in the respective stages being 100% by weight and the content of polymeric units derived from an acrylic ester in the multi-stage polymer (B) being from 5 to 30% by weight.
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申请公布号 |
US5306763(A) |
申请公布日期 |
1994.04.26 |
申请号 |
US19920858872 |
申请日期 |
1992.03.27 |
申请人 |
MITSUBISHI RAYON COMPANY LTD. |
发明人 |
MATSUMOTO, KOJI;MORIMOTO, MASARU |
分类号 |
C08J3/12;C08L51/00;C08L51/04;C08L51/06;C08L101/00;(IPC1-7):C08L51/00;C08L55/02 |
主分类号 |
C08J3/12 |
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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