发明名称 |
Catalyst systems comprising a chromium catalyst and a non-transition metal cyclopentadienyl cocatalyst |
摘要 |
According to an embodiment, catalyst systems for polymerizing olefins include a catalyst comprising chromium and a cocatalyst comprising a substituted or unsubstituted non-transition metal cyclopentadienyl compound (Cp). The catalyst also comprises an inorganic oxide support. In an embodiment, methods of preparing a catalyst comprise contacting a support with chromium and with a non-transition metal Cp compound. In one embodiment, the support may be contacted with a solution comprising the non-transition metal Cp compound prior to entry into a reaction zone. In another embodiment, the activated catalyst and non-transition metal Cp compound may be added separately to the reaction zone.
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申请公布号 |
US2005239638(A1) |
申请公布日期 |
2005.10.27 |
申请号 |
US20040829550 |
申请日期 |
2004.04.22 |
申请人 |
MCDANIEL MAX P;BENHAM ELIZABETH A;SECORA STEVEN J;JENSEN MICHAEL D;COLLINS KATHY S |
发明人 |
MCDANIEL MAX P.;BENHAM ELIZABETH A.;SECORA STEVEN J.;JENSEN MICHAEL D.;COLLINS KATHY S. |
分类号 |
B01J31/00;B01J37/00;C08F4/02;C08F10/00;C08F10/02;C08F110/02;(IPC1-7):B01J31/00 |
主分类号 |
B01J31/00 |
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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