发明名称 |
Zwitterionic metallocycles |
摘要 |
A new class of zwitterionic metallocycles is disclosed. A positively charged Group 4-10 transition metal is chelated to two heteroatoms and one of the heteroatoms has a substituent bearing a negative charge. We have found that substitution in this position stabilizes the zwitterion form of the metallocycle. The zwitterionic metallocycle is useful for olefin polymerizations.
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申请公布号 |
US2005070728(A1) |
申请公布日期 |
2005.03.31 |
申请号 |
US20030673896 |
申请日期 |
2003.09.29 |
申请人 |
NAGY SANDOR;MACK MARK P. |
发明人 |
NAGY SANDOR;MACK MARK P. |
分类号 |
C07F15/04;C08F4/70;C08F10/00;C08F110/02;(IPC1-7):C07F9/00;C07F17/00;C07F13/00 |
主分类号 |
C07F15/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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