Catalyst for preparing polyalkenes
US4173547A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1978 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Mar 8, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process for polymerizing .alpha.-alkenes and using Ziegler-type catalyst compositions is described. The Ziegler-type catalyst composition comprises a component consisting of an organoaluminum compound, an organomagnesium compound and a titanium compound or their reaction products on an inorganic porous solid particulate carrier material, wherein the aluminum/magnesium/titanium components are distributed and absorbed onto the inorganic carrier material, in separate steps, with removal of solvent or diluent therein between whereby the final catalyst/carrier composition when used in the polymerization process produces solid particulate polymer products with narrow particle size distributions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.