Oligomeric oxolanyl alkanes as modifiers for polymerization of dienes using lithium-based initiators
US4429091A · kind A · utility
123Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1983 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Mar 9, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F36/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process and catalyst system is disclosed herein for the preparation of (co)polymers having a 1,2-microstructure of between 20 and 95 percent. These (co)polymers are prepared in a hydrocarbon or other non-polar solvent from a monomer system which contains at least one 1,3-diene monomer. The catalyst system which is employed in the production of the (co)polymers of the present invention is a combination of (1) an anionic initiator based on lithium, and (2) a modifier compound selected from the group consisting of linear and cyclic oligomeric oxolanyl alkanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.