Organo lithium initiator
US4158098A · kind A · utility
8Cited by
9References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1975 |
| Grant date | Jun 12, 1979 |
| Priority date | — |
| Expiry date | Aug 4, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F236/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyalkoxy monovinyl substituted aromatic compounds, such as 3,4-dimethoxystyrene, function as both comonomer and randomizing agent in organolithium initiated copolymerization of a conjugated diene with a monovinyl aromatic compound, such as of butadiene with styrene. The resultant polymeric product exhibits lower levels of block styrene than does a corresponding copolymer made in the absence of the dimethoxystyrene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.