Process for the preparation of ligands for metallogene catalysts
US6844288B2 · kind B2 · utility
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Key dates
| Filing date | Dec 4, 2002 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Dec 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of ligands for metallocene catalysts used in the production of amorphous polymers of alpha-olefins having high molecular weight and narrow molecular weight distributions, in which the isotactic sequences are more abundant than the syndiotactic ones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.