Polymerization catalyst activators, method of preparing, and their use in polymerization processes
US6858689B2 · kind B2 · utility
5Cited by
6References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Dec 12, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
New polymerization catalyst activators are disclosed which include a heterocyclic compound, which may or may not be substituted, and an aluminum alkyl or an aluminoxane. Supported activators of the invention include the heterocyclic compound, combined with an alkylaluminum or aluminoxane, and a support material, preferably a silica support material. Also disclosed are methods for preparing these catalyst activators and polymerization processes utilizing same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.