Rubber Composition and Pneumatic Tire Manufactured Using Same

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United States of America Patent

SERIAL NO

15558177

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Abstract

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A rubber composition contains a diene rubber containing a styrene-butadiene copolymer component formed from at least one type of styrene-butadiene copolymer and a reinforcing filler; the styrene-butadiene copolymer satisfying: a bonded styrene content being from 5 to 50 wt. %; a total of styrene content of an ozone-decomposed component S1 having one styrene-derived unit and styrene content of an ozone-decomposed component S1V1 having one styrene-derived unit and one 1,2-bonded butadiene-derived unit being less than 80 wt. % of the bonded styrene content and a total of styrene content of the ozone-decomposed component S1V1 being 10 wt. % or greater of the bonded styrene content; an integrated intensity of an ozone-decomposed component S1V2 having one styrene-derived unit and two 1,2-bonded butadiene-derived units being 15% or greater of an integrated intensity of all ozone-decomposed components containing a styrene-derived unit; and a vinyl content of butadiene moiety being 50% or greater.

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Patent Owner(s)

Patent OwnerAddress
THE YOKOHAMA RUBBER CO LTDTOKYO JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ashiura, Makoto Hiratsuka-shi, Kanagawa, JP 55 141
Sakai, Ryosuke Hiratsuka-shi, Kanagawa, JP 35 35
Sekine, Yuko Hiratsuka-shi, Kanagawa, JP 20 27
Yatsuyanagi, Fumito Hiratsuka-shi, Kanagawa, JP 44 315

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