Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation
US5739220A · kind A · utility
179Cited by
1References
20Claims
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Key dates
| Filing date | Feb 6, 1997 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Feb 6, 2017 |
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.