Silica additive for use in rubbers and similar cross-linked materials
US6890503B1 · kind B1 · utility
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7Claims
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Key dates
| Filing date | Apr 30, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Apr 30, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present development is a silica additive for use in rubbers and similar cross-linked materials having a silicon atom intercalated within an oxygenated framework. The additive may be prepared starting with crystalline, fused or amorphous silica powder, thereby reducing the cost of the additive as compared to using precipitated silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.