Components of catalysts for polymerizing alpha-olefins and the catalysts formed from the components
US4315835A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1980 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | May 7, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/908
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
New components of catalysts for polymerizing alpha-olefins, and the catalysts formed from the new components are disclosed. Said catalyst components are prepared by reacting Ti compounds with a carrier in the form of spheroidal particles of specified characteristics and which consists of or comprises an Mg compound, or mixture of Mg compounds of the formula EQU X.sub.n Mg(OR).sub.2-n (I) in which 0.ltoreq.n.ltoreq.2, R is an alkyl, aryl, cycloalkyl radical containing from 1 to 20 carbon atoms, X is halogen or a group OR' in which R' is an alkyl, aryl or cycloalkyl radical containing from 1 to 20 carbon atoms and is the same or different from R in formula (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.