Compounds useful as stabilizing agents for rubber vulcanizates
US4595721A · kind A · utility
6Cited by
12References
12Claims
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Key dates
| Filing date | Jun 4, 1984 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Jun 4, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Additives for rubber compositions, giving vulcanizates having improved retention of optimum physical properties, are compounds having the formula R-S-B-S-R where B is an organic bridging group and R is an electron-withdrawing group, for example CN, CCl.sub.3, a radical containing an activated methylene group linked to the sulphur atom or the enolic tautomer of a keto-activated methylene group. Also useful as stabilizing agents are oligomeric analogues of such compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.