发明名称 |
Method of controlling olefin polymerization catalyst composition activity. |
摘要 |
A method of controlling the olefin polymerization activity of an unsupported, liquid form catalyst composition prepared by contacting a single site catalyst precursor with an activating cocatalyst outside of a polymerization reactor is provided. The method comprises adjusting at least one of: a) the period of time the single site catalyst precursor and the activating cocatalyst are contacted; b) the concentrations of the single site catalyst precursor and the activating cocatalyst during contacting; c) the mole ratio of the single site catalyst precursor to the activating cocatalyst during contacting; d) the temperature during contacting; and e) the degree of mixing of the single site catalyst precursor and the activating cocatalyst. |
申请公布号 |
ZA9711220(B) |
申请公布日期 |
1998.06.23 |
申请号 |
ZA19970011220 |
申请日期 |
1997.12.12 |
申请人 |
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION |
发明人 |
THOMAS HENRY PETERSON;TIMOTHY TODD WENZEL;DAVID JAMES SCHRECK;CLARK CURTIS WILLIAMS |
分类号 |
C08F4/64;C08F4/602;C08F10/00;C08F210/16 |
主分类号 |
C08F4/64 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|