Preparation method of diene copolymer having improved rolling resistance and wet traction
US7151140B2 · kind B2 · utility
2Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2004 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Sep 14, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a method for preparing a copolymer useful for the manufacture of tires by coupling the ends of a living polymer, obtained from copolymerization of a diene monomers in the presence of an organolithium initiator and a hydrocarbon solvent, with a multi-reactive polysiloxane compound, and subsequently modifying the remaining uncoupled ends of the polymer with an amine compound. The use of the copolymer thus obtained for tire production improves the affinity to silica and greatly enhances the dynamic properties required for tires, such as wet traction and rolling resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.