Vulcanizable rubber composition usable for the manufacture of a tire, and a tire comprising this composition
US6503973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jul 16, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/00
- 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. The invention also provides for a tire, the tread of which comprises such a composition. The rubber composition posses improved hysteresis and physical properties in the vulcanized state, while retaining satisfactory processing properties in the non-vulcanized state. The rubber composition comprises a reinforcing white filler and a diene block copolymer which is intended to interact with the white filler, the block copolymer comprising a diene block polymer having on at least one chain end thereof a polyether block having a molecular weight of between 1000 g/mol and 3000 g/mol, the polyether block corresponding to the formula:O—CH2—CH2—O)n—R,  (I) in which n is an integer other than zero and R is a saturated or unsaturated hydrocarbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.