B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 1/00 (2006.01) B60C 11/00 (2006.01) C08K 3/04 (2006.01) C08K 5/54 (2006.01) C08L 7/00 (2006.01)
Patent
CA 2180699
The invention relates to a tire with a rubber tread of a cap/base construction wherein the tread cap is composed of cis 1,4-polyisoprene natural rubber, isoprene/butadiene copolymer rubber and cis 1,4 -polybutadiene rubber, reinforced with precipitated silica and carbon black, and the underlying tread base is composed primarily of natural cis 1,4-polyisoprene rubber reinforced with carbon black. The invention particularly relates to truck tires and to bus tires which are collectively referred to herein as "truck tires".
L'invention concerne un pneu avec une bande de type chape/base où la chape est constituée de caoutchouc naturel de poly(1,4-isoprène cis), de caoutchouc de copolymère d'isoprène/butadiène et de caoutchouc de poly(1,4-butadiène cis), avec renforcement au noir de carbone et à la silice précipitée; la base sous-jacente est principalement constituée de poly(1,4-isoprène cis) renforcé de noir de carbone. L'invention concerne particulièrement les pneus de camions et d'autobus, désignés ici par l'expression générale « pneus de camions ».
Smart & Biggar
The Goodyear Tire & Rubber Company
LandOfFree
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