发明公开
- 专利标题: Process for recovering rubberlike polymer from solution thereof
- 专利标题(中): 从其溶液中回收橡胶聚合物的方法
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申请号: EP81105527申请日: 1981-07-14
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公开(公告)号: EP0044511A3公开(公告)日: 1982-07-21
- 发明人: Harada, Hiroyuki , Takao, Hiroyoshi , Yamamoto, Keisaku , Umezu, Takesi
- 申请人: SUMITOMO CHEMICAL COMPANY, LIMITED
- 专利权人: SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人: SUMITOMO CHEMICAL COMPANY, LIMITED
- 优先权: JP10158480 19800723
- 主分类号: C08F06/12
- IPC分类号: C08F06/12
摘要:
In a process for recovering a rubberlike copolymer from a hydrocarbon or halogenated hydrocarbon solution containing the copolymer, the solution being obtained by copolymerizing ethylene and an a-olefin represented by the general formula CH 2 = CHR, wherein R is a linear or a branched alkyl group of 1 to 6 carbon atoms, or by copolymerizing these and a non-conjugated linear or cyclic diene, in the presence of a catalyst containing an organoaluminum compound and a vanadium compound, the improvement which compriese dispersing the rubber like copolymer solution in hot water in the presence of a block type polyether compound represented by the general formula HO(C 2 H 4 O) a (C 3 H 6 O) b (C 2 H 4 O) c H, wherein a, b and c independently represent numbers of 10 to 1000, to strip the solution and separating the resulting granular copolymer from water to recover it in a granular form.
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