Titanated chromium-based catalysts to produce polyethylene
US6200920A · kind A · utility
42Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1998 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Jun 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a supported chromium-based catalyst titanated under specific conditions and used for the homopolymerization or the copolymerization of ethylene. The polyethylene obtained with this catalyst has high shear resirance and environmental stress crack resistance, and can be used for manufacturing films with improved tear properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.