Conjugated diene based rubber composition
US4742117A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 17, 1987 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Apr 17, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08C19/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A rubber composition containing not less than 20% of a conjugated diene based polymer or copolymer. The polymer or copolymer is obtained by polymerizing a conjugated diene or copolymerizing the conjugated diene with at least one kind of other conjugated diene and an aromatic vinyl compound with use of a lithium initiator, and then reacting an isocyanate compound with active terminals of the thus obtained polymer or copolymer. The conjugated diene is butadiene or isoprene, while other conjugated diene is selected from pentadiene, 2,3-dimethylbutadiene as well as isoprene and butadiene, and an aromatic vinyl compound may be styrene, vinyltoluene, .alpha.-methylstyrene, etc. The rubber composition is applicable as tread portion, carcass, side wall portion of tires, vibration resistant rubber, window frame, hose, and various industrial articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.