Heat-aging-resistant rubber composition
US4386181A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Nov 10, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L9/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A heat-aging-resistant rubbery polymer composition comprising a rubbery polymer, at least one compound selected from the group consisting of diphenylamine derivatives and phenol derivatives as an age resister for said rubbery polymer, and polyalkylene ether glycol having an average molecular weight of 100-5,000, and optionally a compound represented by the formula, ##STR1## in which R is alkyl having 10 to 20 carbon atoms. Preferably, said at least one compound selected from the group consisting of diphenylamine derivatives and phenol derivatives is chemically linked to said rubbery polymer as a part of the molecular chain. Said rubbery polymer composition is unexpectedly superior in heat-aging-resistance to a composition consisting only of said rubbery polymer and said age resister or a composition consisting only of said rubbery polymer and said polyalkylene ether glycol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.