Rubber composition and pneumatic tire manufactured using same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10759225
APP PUB NO 20180065413A1
SERIAL NO

15558176

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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 copolymers, and a reinforcing filler. The styrene-butadiene copolymer(s) satisfy: (1) a bonded styrene content is from 5 to 50 wt. %; (2) 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 is less than 80 wt. % of the bonded styrene content and a total of styrene content of the ozone-decomposed component S1V1 is less than 10 wt. % of the bonded styrene content; (3) an integrated intensity of an ozone-decomposed component S1V2 having one styrene-derived unit and two 1,2-bonded butadiene-derived units is 15% or greater of an integrated intensity of all ozone-decomposed products containing a styrene-derived unit; and (4) a vinyl content of butadiene moiety is 50% or greater.

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Patent Owner(s)

Patent OwnerAddress
THE YOKOHAMA RUBBER CO LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ashiura, Makoto Hiratsuka, JP 68 248
Sakai, Ryosuke Hiratsuka, JP 66 198
Sekine, Yuko Hiratsuka, JP 21 90
Yatsuyanagi, Fumito Hiratsuka, JP 45 403

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