发明名称 |
Group 4 metal diene complexes and addition polymerization catalysts therefrom |
摘要 |
Novel Group 4 metal complexes containing one and only one cyclic delocalized, anionic, pi -bonded group wherein the metal is in the +4 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes and a conjugated diene divalent anionic ligand group; catalytic derivatives of such complexes including novel zwiterionic complexes; and the use thereof as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.
|
申请公布号 |
US5770538(A) |
申请公布日期 |
1998.06.23 |
申请号 |
US19960602544 |
申请日期 |
1996.02.20 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
DEVORE, DAVID D.;TIMMERS, FRANCIS J.;STEVENS, JAMES C.;ROSEN, ROBERT K. |
分类号 |
C07F17/00;C08F4/642;C08F4/643;C08F4/659;C08F4/6592;C08F10/00;C08F10/02;(IPC1-7):C08F4/643 |
主分类号 |
C07F17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|