Polypropylene solution polymerization process
US8058373B2 · kind B2 · utility
61Cited by
53References
8Claims
0Family size
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Key dates
| Filing date | Apr 24, 2007 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jul 1, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L7/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for polymerization of propylene, optionally ethylene, and further optionally one or more C4-30 α-olefins and/or one or more conjugated or nonconjugated dienes under continuous, solution polymerization conditions to prepare a high molecular weight polymer or interpolymer, said process comprising conducting the polymerization in the presence of a catalyst composition comprising a hafnium complex of a polyvalent aryloxyether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.