Vulcanizable rubber composition for the manufacture of a tire, and a tire, the tread of which comprises such a composition
US6667362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Jun 13, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a vulcanizable rubber composition which can be used for the manufacture of tires, a process for the preparation of this composition and a tire, the tread of which comprises such a composition, the latter having improved hysteresis and physical properties in the vulcanized state, while retaining satisfactory processing properties.A rubber composition according to the invention comprises a reinforcing white filler, and is such that it comprises at least one diene block polymer which is intended to interact with said reinforcing white filler and which comprises on at least one of its chain ends a polysiloxane block which ends in a trialkylsilyl group, said polysiloxane block corresponding to the formula:[—SiR1R2O—]x-SiR3R4R5, in which R1, R2, R3, R4 and R5 represent alkyl groups having from 1 to 20 carbon atoms, and in which x is a natural integer other than zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.