Catalyst, method and polymerization processes
US4041224A · kind A · utility
84Cited by
10References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1975 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Nov 19, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst prepared by (1) forming a mixture of a finely divided support such as silica, alumina, zirconia or thoria and a chromium compound which may be either organic or inorganic followed by (2) adding a titanium compound, then (3) heat activating the reaction product of (2), and then (4) further heating in a gas that comprises oxygen. The disclosure also includes a method of polymerizing olefins with this catalyst and the process of preparing the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.