Filled elastomer compositions
US4427452A · kind A · utility
8Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Sep 2, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/90
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A filled elastomer composition comprises a natural or synthetic rubber and, as a filler, a substantially dehydroxylated clay which contains at least 60% by weight of particles smaller than 2 microns equivalent spherical diameter, has a specific gravity not greater than 2.4 and a spherical surface area of at least 10 m.sup.2 g.sup.-1 and which has been treated with a substituted silane. The substantially dehydroxylated clay can be obtained by "shock" calcining a kaolinitic clay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.