发明授权
US3931136A Catalytic production of a high molecular weight cis-1,4-polyisoprene
失效
催化生产高分子量顺式-1,4-聚异戊二烯
- 专利标题： Catalytic production of a high molecular weight cis-1,4-polyisoprene
- 专利标题（中）： 催化生产高分子量顺式-1,4-聚异戊二烯
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申请号： US472632申请日： 1974-05-23
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公开(公告)号： US3931136A公开(公告)日： 1976-01-06
- 发明人: Kan Mori , Hiroharu Ikeda , Isao Nagaoka , Tooru Shibata , Sigeo Kawatani , Tatsuhiko Kikuchi
- 申请人： Kan Mori , Hiroharu Ikeda , Isao Nagaoka , Tooru Shibata , Sigeo Kawatani , Tatsuhiko Kikuchi
- 申请人地址： JA Tokyo
- 专利权人： Japan Synthetic Rubber Co., Ltd.
- 当前专利权人： Japan Synthetic Rubber Co., Ltd.
- 当前专利权人地址： JA Tokyo
- 主分类号： C08F136/08
- IPC分类号： C08F136/08 ; C08D1/14 ; C08D3/12
摘要：
High molecular weight cis-1,4-polyisoprene is produced by contacting isoprene with a catalyst formed by admixing (A) a titanium tetrachloride, (B) a trihydrocarbylaluminum and (C) a beta-diketone. The activity of this ternary catalyst is not adversely affected by such impurities as cyclopentadiene that are contained in the feed stock isoprene.
公开/授权文献
- US5003022A Starch graft polymers 公开/授权日：1991-03-26