Patent · US Expired

Rubber composition for use in tire

US4742124A · kind A · utility

18Cited by
6References
7Claims
0Family size

Assignees

Inventors

Key dates

Filing dateJul 6, 1987
Grant dateMay 3, 1988
Priority date
Expiry dateJul 6, 2007

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L9/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

YA rubber composition for use in tire having improved rolling resistance, wet skid resistance and processability is disclosed, which comprises at least 20% by weight of a conjugated diolefin-vinyl-substituted aromatic hydrocarbon random copolymer. This random copolymer is produced by copolymerization with a particular initiator and coupling with a particular coupling agent, and has a content of vinyl-substituted aromatic hydrocarbon of 3-60% by weight, a content of tin bonded to copolymer of not less than 400 ppm and a Mooney viscosity (ML.sub.1+4.sup.100.degree.C.) of 20-200.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.