Catalyst for the polymerization of diolefins, method for its preparation, and its use for the preparation of polymers
US5610114A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 2, 1995 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Aug 2, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A supported solid catalyst which can be used for the polymerization and copolymerization of conjugated dienes having as its basis the reaction product of: PA1 A) a solid MgCl.sub.2 support, PA1 B) an ether, preferably THF, as swelling agent for the support, PA1 C) a metal salt selected from among metals having an atomic number of between 57 and 71 or 92 in the periodic table of elements and, if the metal salt is not a halide, PA1 D) a halogenation agent selected from the group consisting of a halogenated compound of aluminum and a halogenated compound not containing aluminum, the reaction solid being free from the swelling agent, plus PA1 E) an organic derivative of aluminum which is obligatory when the halogenation agent is not a halogenated compound of aluminum and optional when the halogenation agent is a derivative of aluminum. Also, a method of preparing this catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.