C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1121, 152/12
C08L 21/00 (2006.01) B60C 1/00 (2006.01) C08K 5/01 (2006.01) C08L 9/06 (2006.01)
Patent
CA 1247773
TITLE OF THE INVENTION An improved pneumatic tire suitable for running on snow and ice roads ABSTRACT OF THE DISCLOSURE 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: Image mixed with 40 to 100 parts by weight of carbon black and 0 to 60 parts by weight of a softener and vulcanized.
467170
Bridgestone Corporation
Riches Mckenzie & Herbert Llp
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