Rubber compositions containing furazan oxides and transition metal salts
US4975497A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1988 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Nov 18, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/35
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Modified rubber compositions are described which comprise at least one polymer rubber containing carbon-carbon unsaturation, at least one aromatic furazan oxide, and at least one hydrocarbon-soluble transition metal salt. When a transition metal salt is included in such polymer rubber formulations containing aromatic furazan oxides, the undesirable odors which normally characteristic of such rubber formulations is diminished or eliminated without significantly reducing the other desirable characteristics of the vulcanized rubbers. For example, filled vulcanizates made by vulcanizing mixtures in accordance with the invention exhibit high rebound, and tires which are formulated to include at least a portion of the cured vulcanizates in the tread exhibit reduced rolling resistance. Preferably, the hydrocarbon-soluble transition metal salts are the aliphatic or alicyclic monocarboxylic acid salts or cobalt, iron, nickel or manganese.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.