Catalysts for the polymerization of olefins
US6777508B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1994 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Aug 17, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are catalysts for the polymerization of alpha-olefins which comprise the reaction product of:(a) an Al-alkyl compound;(b) a silicon compound containing at least one Si—OR or Si—OCOR or Si—NR2 bond, R being a hydrocarbyl radical;(c) a solid comprising, as essential support, a Mg dihalide in active form and, supported thereon, a Ti halide or a halo-Ti-alcoholate and a particular type of electron donor compound.The present invention refers to new supported components of catalysts for the polymerization of CH2═CHR olefins wherein R is an alkyl radical with 1 to 4 carbon atoms, or an aryl radical, and mixtures of said olefins with ethylene and the catalysts obtained from said components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.