Compositions based on fluoroelastomers and on modified olefinic polymers
US4840994A · kind A · utility
9Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1988 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Jun 17, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Fluoroelastomer compositions vulcanizable with peroxides having improved processability and compatibility properties and comprising, as additives, ethylene polymers and ethylene-propylene or ethylene-butene copolymers having, along the polymer chain, ester groups of the type--COOR where R is a C.sub.1 -C.sub.8 alkyl, wherein the ester groups amount to 0.5-10% by weight as referred to the total polymer. Such polymer additives contain the ester group bound to a carbon atom of the chain either directly or through a --CH.sub.2 -- or in the form ##STR1## where R is a C.sub.1 -C.sub.8 alkyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.