Mixed phosphinimine catalyst
US6235672A · kind A · utility
52Cited by
16References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Jul 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A supported catalyst for the polymerization of olefins, especially ethylene, has at least two catalyst components having different propagation and/or termination constants. Each catalyst component must have at least one phosphinimine ligand. The polymer produced according to this invention has a broad molecular weight distribution. Catalysts according to this invention have a very surprising and desirable hydrogen response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.