Sulfonated olefinic copolymers
US5389271A · kind A · utility
4Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Jun 15, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2205/022
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides novel sulfonated ethylene/alpha olefin copolymer compositions obtained by sulfonating ethylene/alpha olefin copolymer having number average molecular weights in the range of about 800 to about 50,000, and which have a high degree of terminal unsaturation. Preferably, at least 30% of the terminal unsaturation is vinylidene terminal unsaturation. Also, the alpha olefin preferably has 3 to about 12 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.