Pneumatic tires
US5409969A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Aug 2, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/5406
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
As a tread rubber of a pneumatic tire is used a rubber composition comprising 10-150 parts by weight of a silica filler, 0-150 parts by weight of carbon black and 0.2-10 parts by weight of at least one specified silane coupling agent, based on 100 parts by weight of a particular polymer rubber having a glass transition temperature of not lower than -50.degree. C. through polymerization of 1,3-butadiene or copolymerization of 1,3-butadiene and styrene with an organic alkali metal initiator, or a rubber blend of not less than 30 parts by weight of the above polymer and not more than 70 parts by weight of the other diene series rubber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.