Catalysts for polymerizing propylene in a high temperature solution process
US4297465A · kind A · utility
31Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1980 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Oct 29, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to improved catalysts for the polymerization of propylene and higher .alpha.-olefin in a high temperature solution process comprising (1) a beta amino carboxylic ester, (2) an aluminum trialkyl and (3) a transition metal halide. More particularly, this invention relates to catalysts for the catalytic high temperature solution polymerization of .alpha.-mono-olefins containing at least 3 carbon atoms to form solid, highly crystalline polymers. More specifically, the catalysts of the present invention produce polypropylene in a high temperature solution process at very high polymer to catalysts yields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.