Rubber compositions for tire treads
US4748168A · kind A · utility
15Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1987 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Apr 30, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Rubber compositions suitable for tire treads are disclosed. Starting rubbers made up of at least one SBR of -20.degree. C. to -40.degree. C. in Tg and at least one SBR of lower than -45.degree. C. in Tg are blended with specified amounts of carbon blacks having a N.sub.2 SA of more than 120 m.sup.2 /g and of softeners having a VGC of 0.90 to 0.98, whereby the compositions are provided with a storage shear modulus of less than 500 MPa at -30.degree. C. The compositions are excellent in friction performance, abrasion resistance and low-temperature resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.