Catalyst support and catalyst for the polymerization of .alpha.-olefins
US6221802A · kind A · utility
11Cited by
16References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Jan 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention comprises a catalyst support containing an .alpha.-olefin polymer which is in the form of particles of mean size from 5 to 350 .mu.m in which the pore volume generated by the pores of radius from 1,000 to 75,000 .ANG. is at least 0.2 cm.sup.3 /g. A catalyst usable for the polymerization of .alpha.-olefins, including a compound containing at least one transition metal belonging to groups IIIb, IVb, IVb and VIb of the Periodic Table, bound in or on this support, is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.