Blend composition of an oil and a neutralized sulfonated elastomeric polymer
US4187206A · kind A · utility
7Cited by
4References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1977 |
| Grant date | Feb 5, 1980 |
| Priority date | — |
| Expiry date | Nov 29, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/31
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to improved blend compositions of a neutralized sulfonated elastomeric polymer and a non-polar backbone process oil which is either paraffinic or naphthenic and has less than 0.75 wt. % of polar type compounds and less than 20 wt. % of aromatic type. These oil extended sulfonated elastomeric products have improved compression set properties as compared to previously existing products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.