Magnesium dichloride-based adducts and catalyst components obtained therefrom
US7932206B2 · kind B2 · utility
1Cited by
7References
26Claims
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Key dates
| Filing date | Nov 25, 2003 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Jan 21, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Solid Lewis adducts comprising MgCl2, a Lewis base (LB) belonging to ethers, esters, ketones, silanes or amines and an alcohol ROH, in which R is a C1-C15 hydrocarbon group optionally substituted with heteroatoms containing groups, which compounds are in molar ratios to each other defined by the following formula MgCl2(ROH)m(LB)n in which m ranges from 0.05 to 6, n ranges from 0.08 to 6. The solid Lewis adducts herein can be used to prepare catalysts having good morphological stability, and high polymerization activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.