Oil-extended hydrogenated diblock copolymer
US4102849A · kind A · utility
4Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Mar 7, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The composition disclosed herein involves an oil-extended composition comprising 10-200 parts of oil, preferably 25-125 parts, per 100 parts of a hydrogenated diblock copolymer comprising one block of polybutadiene and one block of a random copolymer of a vinyl arene, such as styrene, and butadiene. This hydrogenated diblock copolymer has improved properties as compared to corresponding hydrogenated random copolymers of the vinyl arene and butadiene, particularly with respect to high temperature properties, oil acceptance and stability against aging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.