Process for producing random copolymers of conjugated dienes and alpha-methylstyrene type monomers
US4277591A · kind A · utility
6Cited by
10References
26Claims
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Key dates
| Filing date | Nov 20, 1979 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Nov 20, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F236/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Random copolymers of at least one conjugated diene and at least one alpha-methylstyrene type monomer are produced by solution polymerization in the presence of an organolithium initiator and at least one of selected sodium, potassium, rubidium, and cesium compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.