Process for producing conjugated diene polymers
US4152504A · kind A · utility
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6References
15Claims
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Key dates
| Filing date | Apr 19, 1977 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Apr 19, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F36/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing a conjugated diene polymer, which comprises polymerizing (a) a conjugated diene, (b) two or more conjugated dienes or (c) at least one conjugated diene with a monovinyl aromatic compound, at a temperature of from about 30 to about 100.degree. C in an inert hydrocarbon solvent in the presence of a catalyst composition comprising (i) an alkenyl sodium containing 3 to 8 carbon atoms in the alkenyl moiety and (ii) a sodium alkoxide of a dimethylalkyl carbinol containing 1 to 5 carbon atoms in the alkyl moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.