发明名称 |
Supported polymerisation catalysts |
摘要 |
A method for the preparation of a supported transition metal catalyst system which includes the steps of: (i) mixing together in a suitable solvent (a) an aluminoxane and (b) an ionic activator containing a cation and an anion, wherein the anion has at least one substituent containing a moiety having an active hydrogen, (ii) addition of the mixture from step (i) to a support material, and (iii) addition of a transition metal compound in a suitable solvent. The use of tetraisobutylaluminoxane as the aluminoxane results in a more stable activity profile and improved polymer properties in particular melt strength.
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申请公布号 |
US2006154808(A1) |
申请公布日期 |
2006.07.13 |
申请号 |
US20050523828 |
申请日期 |
2005.02.08 |
申请人 |
JACOBSEN GRANT B;KIMBERLEY BRIAN S;MASTROIANNI SERGIO;TAYLOR MICHAEL J |
发明人 |
JACOBSEN GRANT B.;KIMBERLEY BRIAN S.;MASTROIANNI SERGIO;TAYLOR MICHAEL J. |
分类号 |
B01J31/00;C08F4/02;C08F4/44;C08F4/64;C08F4/659;C08F4/6592;C08F10/00;C08F210/16 |
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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