Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation
US6156854A · kind A · utility
13Cited by
5References
12Claims
0Family size
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Key dates
| Filing date | Jan 6, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Jan 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An olefin polymerization process in which at least two introductions of hydrogen are made during the olefin polymerization reaction. Suitable catalysts include metallocenes of the general formula (Cp).sub.m TiX.sub.n, wherein Cp is a substituted or unsubstituted cyclopentadienyl ring, X is a halogen, m=1-2, n=2-3, and wherein m+n=4, and conventional Ziegler-Natta catalysts blended with or modified by such metallocenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.