发明授权
- 专利标题: Process for polymerizing cycloolefines
- 专利标题(中): 环烯烃聚合方法
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申请号: US501864申请日: 1974-08-30
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公开(公告)号: US3954699A公开(公告)日: 1976-05-04
- 发明人: Shoichi Matsumura , Itaru Hatano
- 申请人: Shoichi Matsumura , Itaru Hatano
- 申请人地址: JA Osaka
- 专利权人: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人地址: JA Osaka
- 优先权: JA46-28440 19710428
- 主分类号: C08G61/08
- IPC分类号: C08G61/08 ; C08F4/24
摘要:
A Process for polymerizing cycloolefins by ring opening reaction using heterogeneous catalyst containing tungsten trioxide and Lewis acid or tungsten trioxide, Lewis acid and organoaluminum compound as the polymerization catalyst.
公开/授权文献
- US5066982A Cleaner-less image forming apparatus 公开/授权日:1991-11-19