Invention Grant
US5006500A Olefin polymerization catalyst from trialkylaluminum mixture, silica gel
and a metallocene
失效
来自三烷基铝混合物，硅胶和茂金属的烯烃聚合催化剂
- Patent Title: Olefin polymerization catalyst from trialkylaluminum mixture, silica gel and a metallocene
- Patent Title (中): 来自三烷基铝混合物，硅胶和茂金属的烯烃聚合催化剂
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Application No.: US422357Application Date: 1989-10-16
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Publication No.: US5006500APublication Date: 1991-04-09
- Inventor: Main Chang
- Applicant: Main Chang
- Applicant Address: NJ Linden
- Assignee: Exxon Chemical Patents Inc.
- Current Assignee: Exxon Chemical Patents Inc.
- Current Assignee Address: NJ Linden
- Main IPC: C08F4/651
- IPC: C08F4/651 ; C08F4/60 ; C08F4/642 ; C08F4/656 ; C08F4/659 ; C08F4/6592 ; C08F10/00
Abstract:
A high activity alumoxane-metallocene supported catalyst for the polymerization of 1-olefins prepared by reacting undehydrated silica gel with a mixture of trimethylaluminum and triisobutylaluminum to produce a silica-alumoxane product which is then reacted with a Group IVB and/or Group VB metallocene to produce an active catalyst which may be obtained in powder form, suitable for use in gas or slurry phase reactors, by a removal of solvents and drying.
Public/Granted literature
- US4477537A Method for producing burr-free blanks and the blanks produced thereby Public/Granted day:1984-10-16
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