Electron donor and catalyst system for olefin polymerization
US6323293A · kind A · utility
8Cited by
5References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 21, 1997 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Feb 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a process of polymerization wherein the catalyst comprises: PA1 A) a catalyst component consisting essentially of titanium, magnesium, halogen, a polycarboxylic ester, and an organic phosphorus compound; PA1 B) electron donor described by the formula: ##STR1## PA1 wherein R.sub.1 is alkyl or cycloakylgroup containing at least one secondary or tertiary carbon atom, R.sub.2 and R.sub.3 are each independently alkyl or aryl group, and R.sub.4 is an alkyl group having a primary carbon bonded to the silicon atom; and PA1 C) organic aluminum compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.