发明授权
- 专利标题: Method for the degradation of nitrile rubber by metathesis in the presence of ruthenium- or osmium-based catalysts
- 专利标题(中): 在钌基或锇基催化剂存在下通过复分解来降解丁腈橡胶的方法
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申请号: US11509983申请日: 2006-08-25
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公开(公告)号: US07470750B2公开(公告)日: 2008-12-30
- 发明人: Werner Obrecht , Julia Maria Müller , Oskar Nuyken , Heinz Berke , Ludek Meca , Lubica Triscikova
- 申请人: Werner Obrecht , Julia Maria Müller , Oskar Nuyken , Heinz Berke , Ludek Meca , Lubica Triscikova
- 申请人地址: DE Leverkusen
- 专利权人: LANXESS Deutschland GmbH
- 当前专利权人: LANXESS Deutschland GmbH
- 当前专利权人地址: DE Leverkusen
- 代理商 Jennifer R. Seng
- 优先权: DE102005040939 20050830; DE102005048327 20051008; DE102005058834 20051209
- 主分类号: C08F20/44
- IPC分类号: C08F20/44 ; C08F8/04 ; C08F8/50 ; C08C19/02 ; C08C19/08
摘要:
A novel process for the degradation of nitrile rubber by metathesis using ruthenium- or osmium-based catalysts which have both a substituted or unsubstituted imidazolidine ligand and a carbene ligand bearing a phosphonium radical is provided.
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