发明名称 |
Propylene polymerization method |
摘要 |
A catalyst component useful in propylene polymerization in combination with a dialkyl aluminum halide cocatalyst comprises the product of reaction of TiCl3 which is substantially free of extraneous halide with a selected electron donor compound which is dissolved in a liquid hydrocarbon solvent in which the TiCl3 is dispersed. The electron donor compound is selected from certain organic acid esters, hindered phenolic compounds and silyl esters. The catalyst of the invention provides increased activity, molecular weight control, increased isotacticity of propylene polymer products and prevents catalyst feed line pluggage, among other advantages.
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申请公布号 |
US5212266(A) |
申请公布日期 |
1993.05.18 |
申请号 |
US19920865799 |
申请日期 |
1992.03.30 |
申请人 |
QUANTUM CHEMICAL CORPORATION |
发明人 |
BUEHLER, CHARLES K.;SENGER, CINDY S.;JOHNSON, KENNETH W. |
分类号 |
C08F4/652;C08F2/50;C08F4/60;C08F4/64;C08F4/649;C08F10/00;C08F10/06;C08F110/06 |
主分类号 |
C08F4/652 |
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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