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Rubber composition for coating steel cord and tire using the same.

U.S. patent: 8,304,480

Issued: November 6, 2012

Inventors: Mamoru Uchida, Takao Wada and Tomoaki Hirayama

Assigned: Sumitomo Rubber Industries

Key statement: A rubber composition for coating a steel cord, in which processability, durability and adhesive condition can be improved with favorable balance, and a tire using the rubber composition are provided. The rubber composition for coating a steel cord comprises 40 to 70 parts by weight of silica having a nitrogen adsorbing-specific surface area of 100 to 200 m.sup.2/g, 1 to 15 parts by weight of a silane coupling agent, 12 to 20 parts by weight of zinc oxide, 3.5 to 5 parts by weight of sulfur, and an organic cobalt in an amount of 0.05 to 0.3 part by weight, converted into metal cobalt amount, on the basis of 100 parts by weight of a rubber component, and a tire is prepared using the rubber composition.
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Title Annotation:Patent News
Publication:Rubber World
Date:Nov 1, 2012
Words:156
Previous Article:Rubber composition in particular for the manufacture of tires.
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