Pneumatic tire suitable for running on snow and ice roads
US4624296A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1984 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Nov 21, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pneumatic tire suitable for running on snow and ice roads is improved by providing tread portion composed of a rubber composition comprising 100 parts by weight of a blend rubber consisting of (A) 50 to 90 parts by weight of at least one rubber selected from the group consisting of natural rubber, polyisoprene rubber, butadiene-styrene copolymer rubber, polybutadiene rubber, butyl rubber and halogenated butyl rubber and (B) 10 to 50 parts by weight of a diene type rubber containing 0 to 25% of styrene group (x) and 0 to 50% of 1,2 vinyl bond group (y), (x) and (y) satisfying the following relationship: ##EQU1## mixed with 40 to 100 parts by weight of carbon black and 0 to 60 parts by weight of a softener and vulcanized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.