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Process for the preparation of branched polydienes in the presence of catalysts based on rare-earth 发明授权

2023-07-22 1230 604K 0

专利信息

申请日期 2025-07-05 申请号 US10736744
公开(公告)号 US7078466B2 公开(公告)日 2006-07-18
公开国别 US 申请人省市代码 全国
申请人 Alessandro Balducci; Sandra Righi
简介 A process is described for the preparation of polydienes with a low vinyl content and having a branched structure effected by means of the polymerization of conjugated dienes in the presence of catalysts based on rare-earth compounds. The resulting polymers are characterized in that they have a cis content varying from 80 to 96% and prove to be branched with consequent low viscosity values in solution.


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