Unvulcanized rubber mixture for tire treads
US5905107A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1998 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Feb 6, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/47
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Unvulcanized rubber mixture that can be cross linked with sulfur, including: (A) 100 weight parts of total mass of unvulcanized rubber including: about 40 to 100 weight parts of styrene-butadiene-copolymer (S-SBR) that is produced in solution; and (B) relative to the 100 weight parts of total mass of unvulcanized rubber: about 50 to 80 pphr silicic acid, about 3 to 7 pphr silanization agent, about 0.1 to 0.5 pphr tetrabenzylthiuramdisulfide (TBzTD), and about 1 to 3 pphr benzothiazyl-2-cyclohexylsulfenamide (CBS). A vulcanization process, including vulcanizing the unvulcanized rubber mixture. A tire including a tread that is produced from the unvulcanized rubber mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.