Catalyst components for the polymerization of olefins
US7427653B2 · kind B2 · utility
6Cited by
12References
32Claims
0Family size
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Key dates
| Filing date | Nov 25, 2003 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Nov 25, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst component for olefin (co)polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters, amines, ketones, or nitriles, characterized in that the molar ratio Mg/Ti is higher than 5, and the molar ratio ED/Ti is higher than 3.5. The said catalyst components display a homogeneous distribution of the comonomer in and among the copolymer chains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.