Catalyst component for making primarily isotactic elastomeric polypropylene or polybutene
US4971936A · kind A · utility
46Cited by
31References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Jul 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst component and catalyst composition useful in the production of elastomeric, primarily isotactic polypropylene and polybutene is disclosed and it comprises the reaction product of a magnesium alkoxide compound and a tetravalent titanium halide wherein the reaction takes place in the presence of an electron donor selected from the group consisting of veratrole and derivatives thereof. The invention also relates to a process for producing such polymers using the above catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.