Catalysts for olefin polymerization and a process for preparing olefin polymers therewith
US5942459A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1996 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Feb 20, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The object of the present invention is to provide a polyolefin having a good particle property in a high yield without use of an expensive alumoxane. The present invention comprises a catalyst for olefin polymerization comprising the following ingredients (A), (B) and (C), and a process for preparing an olefin polymer with use of the catalyst: PA1 Component (A): a transition metal compound having at least one conjugated five-membered ring ligand, the transition metal being in the Groups IV-VI of the Periodic Table, PA1 Component (B): an organoaluminum compound, and PA1 Component (C): a finely divided particle composition comprising 0.1-99.9% by weight of boric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.