Bridgestone Americas Tire Operations, LLC

Bridgestone Firestone North American Tire, LLC

Bridgestone/firestone Research, Inc.

Jamie J McNutt

Tomohiro Kusano

David R Stewart

William J O'Briskie

Natalie V Weingart

David Gary Abdallah

William J Corsaut

Nicole L Squire

Michael S James

Disclosed is a rubber composition suitable for use as a cap ply rubber composition. The rubber composition comprises: (a) at least one natural or synthetic rubbery polymer; (b) from 0.1 to 20 phr of at least one hydrazide compound; (c) from 0.1 to 10 phr of at least one methylene donor; (d) from 0.1 to 10 phr of at least one methylene acceptor resin; and (e) from 0.1 to 10 phr of zinc oxide is disclosed. A method of making the same is also disclosed.

Rubber composition suitable for use as a cap ply in a tire

Disclosed is a rubber composition suitable for use as a cap ply rubber composition. The rubber composition comprises: (a) at least one natural or synthetic rubbery polymer; (b) from 0.1 to 20 phr of at least one hydrazide compound; (c) from 0.1 to 10 phr of at least one methylene donor; (d) from 0.1 to 10 phr of at least one methylene acceptor resin; and (e) from 0.1 to 10 phr of zinc oxide. A method of making the same is also disclosed.

A tire sidewall may be formed from a composition including a rubber component and a non-ionic surfactant.

Rubber composition and pneumatic tire using same

A reinforced high viscosity rubber composition having improved processability such as reduced mixing cycles contains large sized particles of carbon black. The carbon black has low structure and a low DBP absorption number as well as a low iodine number. The rubber composition is useful in various tire rubber compositions such as those requiring a high viscosity, for example an apex rubber.

Large sized carbon black particles to reduce needed mixing energy of high hardness, stiff tire compositions

Old, spent or worn tires are recycled by removing non-rubber components such as belts, beads, and fabric, and grinding the remaining cured rubber into fine sized particles. The ground particles generally replace equivalent amounts of rubber and additives in various tire formulated components such as tire treads. Good physical properties of the end product are retained.

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Tallmadge, OH, United States of America

Jamie J McNutt