Rubber for tire treads and compositions thereof
US4835209A · kind A · utility
52Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Mar 16, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C1/0016
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a rubber-like polybutadiene or a rubber-like butadiene-styrene copolymer suited for use in tire treads which are obtained by polymerization of the monomer(s) in the presence of an organolithium catalyst, followed by reacting a carbodiimide with the reactant product thereof so as to subject it to reaction at its living point, and if necessary, further reacting the product thus obtained with a trifunctional or higher-order coupling agent. The invention further relates to a process for the production thereof, and a rubber composition containing more than a definite amount of said polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.