Magnesium dichloride-alcohol adducts, process for their preparation and catalyst components obtained therefrom
US6407028B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Jul 26, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to MgCl2.mROH.nH2O adducts, where R is a C1-C10 alkyl, 2≦m≦4.2, and 0≦n≦0.7, characterized by a differential scanning calorimetry (DSC) profile in which no peaks are present at temperatures below 90° C. or, if peaks are present below said temperature, the fusion enthalpy associated with said peaks is less than 30% of the total fusion enthalpy. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity and stereospecificity with respect to the catalysts prepared from the adducts of the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.