Viscosity modifer polymers
US5310490A · kind A · utility
23Cited by
30References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1991 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Mar 13, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2205/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to hydrogenated block copolymers of butadiene and at least one other diene, preferably isoprene. The copolymer is hydrogenated and comprises at least 10% by weight of at least one crystallizable segment and at least one low crystallinity segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.