Siliceous filled vulcanizates
US4152308A · kind A · utility
8Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1978 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Mar 7, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a process, and the product of that process, for the production of improved silica or calcium silicate filled rubbery vulcanizates which comprises the preparation of a mixture comprising a vulcanizable hydrocarbyl polymer containing hydroxyl groups, silica or calcium silicate and an organic acid or salt thereof, shearing the mixture at an elevated temperature, incorporating vulcanization active compounds and vulcanizing to produce the improved vulcanizates. Such improved vulcanizates may be used generally in the rubber industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.