Process for preparing catalyst components for the olefin polymerization
US7790818B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2005 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jun 11, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for the preparation of a solid catalyst component for the polymerization of olefins, the process comprising the steps of: —continuously contacting solid particles of a MgCl2.mROH adduct, wherein 0.5<m<6.0 and R is an alkyl, cicloalkyl or aryl radical having 1-12 carbon atoms, with a liquid phase comprising one or more compounds capable of reacting with the —OH groups of said adduct to obtain a slurry containing a MgCl2.nROH, wherein n is lower than m; —reacting the slurry from step a) with one or more titanium compounds of formula Ti(OR)pXq−p, wherein q=3-4 and p=0-q, X is an halogen and R is an alkyl, cicloalkyl or aryl radical having 1-18 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.