Process for the preparation of ethylene copolymers
US7273913B2 · kind B2 · utility
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Key dates
| Filing date | Nov 18, 2002 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Nov 18, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is described for the preparation of ethylene copolymers having a wide molecular weight distribution, characterized in that it is carried out in the presence of meso- and rac-stereoisomeric mixtures of metallocene compounds having general formula (I), wherein A′ and A″, the same or different, are a radical of the η?5-tetrahydroindenyl type (Ia)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.