Aluminoxane catalyst activators containing carbocation agents, and use thereof in polyolefin catalysts
US9090720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2012 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to an activator composition comprising (i) an organoaluminum compounds; (ii) a carbocation compound of the formula R1(X)n; wherein R1 is a hydrocarbyl; n is from 1 to the number of possible substitutions of the hydrocarbyl group and each X is a labile leaving group; and (iii) an aluminoxane. The activator composition may also contain a carrier support. This invention also provides a catalyst composition comprising the activator composition described above and a transition metal component. This invention also provides methods of polymerizing monomer comprising carrying out such polymerization in the presence of one or more catalyst composition according to this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.