TREAD RUBBER COMPOSITION HAVING MAJORITY AMOUNT OF RENEWABLE INCLUSION

Japanese Patent JP2023091770

A

To provide a tire rubber composition which is sustainable, is biologically renewable, is friendly to an environment, and is made of a non-fossil fuel resource.SOLUTION: A rubber composition contains, based on 100 pts.wt. of an elastomer (phr), a blend of at least two rubber elastomers selected from the group consisting of approximately 40 phr to approximately 50 phr of polybutadiene, approximately 35 phr or less of a styrene-butadiene copolymer, and approximately 45 phr or less of natural rubber, a bio-derived resin material, and a bio-derived filler containing silica and a carbon black filler. The carbon black filler is at least partially derived from a bio-based supply material after addition to the rubber composition. The resin and the silica are derived from a renewable material.SELECTED DRAWING: None

JPWO2016143667	Rubber composition and pneumatic tires using it
JP2013237724	RUBBER COMPOSITION FOR TREAD AND PNEUMATIC TIRE USING THE SAME
JP4092524	Rubber composition, resin modifier composition containing it, and resin composition

STACEY LYNNE DEAN-SIOSS

JP2022202001A

June 30, 2023

December 19, 2022

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GOODYEAR TIRE & RUBBER

C08L9/00; B60C1/00; C08K3/04; C08K3/36; C08L7/00; C08L9/06; C08L45/00; C08L65/00

Osamu Yamamoto
Toru Miyamae
Junichi Matsuo
Hiroaki Noya

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