Silica-rubber mixtures having improved hardness
US7432321B2 · kind B2 · utility
16Cited by
49References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2003 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Jul 8, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L9/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for increasing the hardness of silica/rubber mixtures includes blending with the mixture at least one silane and a hardness-increasing amount of at least one member selected from the group consisting of thixotropic fumed silica, precipitated silica and an MQ resin, wherein Q is SiO4/2, M is R1R2R3SiO1/2, and R1,R2,and R3 are the same or different functional or non-functional organic groups, carbon black, a thermoplastic resin or a thermosetting resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.