发明授权
US5470993A Titanium(II) or zirconium(II) complexes and addition polymerization
catalysts therefrom
失效
钛（II）或锆（II）络合物及其加成聚合催化剂
- 专利标题： Titanium(II) or zirconium(II) complexes and addition polymerization catalysts therefrom
- 专利标题（中）： 钛（II）或锆（II）络合物及其加成聚合催化剂
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申请号： US241523申请日： 1994-05-12
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公开(公告)号： US5470993A公开(公告)日： 1995-11-28
- 发明人: David D. Devore , Francis J. Timmers , David R. Wilson , Robert K. Rosen
- 申请人： David D. Devore , Francis J. Timmers , David R. Wilson , Robert K. Rosen
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C07F17/00
- IPC分类号： C07F17/00 ; C08F4/659 ; C08F4/6592 ; C08F10/00 ; C08F210/02 ; C08F210/16 ; C08F210/18 ; C08F4/642
摘要：
Novel titanium or zirconium complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +2 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes; catalytic derivatives of such complexes; methods of preparation; and the use thereof as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.
公开/授权文献
- US4885315A Foamable thermoplastic polymers and a method for foaming 公开/授权日：1989-12-05
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