Heat resistant rubber composition having improved mechanical properties
US4753976A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Aug 22, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L81/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The rubber composition without formulating a carbon black filler has a remarkably low Mooney viscosity and still is capable of giving a rubber vulcanizate having excellent mechanical properties. The rubber composition comprises, in addition to natural rubber or a diene-based synthetic rubber and a non-carbon inorganic filler, a specific poly(dialkoxysiloxane) terminated at each molecular chain end with a polysulfide linkage-containing group of the formula (RO).sub.3 Si--R.sup.1 --S.sub.x -- R.sup.1 --bonded to the terminal silicon atom, in which R is an alkyl group, e.g. methyl and ethyl, R.sup.1 is a divalent hydrocarbon group, e.g. --CH.sub.2 CH.sub.2 CH.sub.2 13 , and x is a positive integer of 2 to 6 or, typically, 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.