发明名称 |
Transition metal olefin polymerization processes |
摘要 |
This invention relates to processes using non-Group 4 transition metal compositions useful as olefin polymerization catalysts, wherein the transition metal is in a high oxidation state. The invention further relates to design of new ligand systems and methods of preparing and using the same. Compositions useful as catalyst precursors are neutral transition metal complexes comprising the unique ligand systems of the invention. The inventive compositions may be activated to a catalytic state by ion-exchange reagents or by Lewis acids.
|
申请公布号 |
US5502124(A) |
申请公布日期 |
1996.03.26 |
申请号 |
US19950445062 |
申请日期 |
1995.05.19 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
CROWTHER, DONNA J.;FISHER, RICHARD A.;CANICH, JO ANN M.;HLATKY, GREGORY G.;TURNER, HOWARD W. |
分类号 |
C08F4/642;B01J31/12;B01J31/14;B01J31/16;B01J31/18;B01J31/22;C07F9/00;C07F11/00;C07F17/00;C08F4/60;C08F4/602;C08F4/622;C08F4/639;C08F4/6592;C08F4/69;C08F4/72;C08F4/74;C08F10/00;C08F10/02;(IPC1-7):C08F4/69;C08F4/68 |
主分类号 |
C08F4/642 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|