Polymerization process
US3972866A · kind A · utility
7Cited by
13References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1973 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Nov 16, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An olefine polymerization catalyst includes a complex compound of phosphorus having the general formula ##EQU1## where the various groups are defined. Typical phosphorus compounds include ##EQU2## Catalyst systems containing these phosphorus compounds give a high rate of polymerization together with a low proportion of soluble polymer. The phosphorus compound can be ball-milled with the titanium compound to give an improved effect and the catalyst system may also include an electron donor compound such as triphenylphosphine oxide and tris(dimethylamino)silicon monochloride or a cyclic polyene such as cycloheptatriene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.