Patent Number: 6,166,140

Title: Elastomer blend and use in tires

Abstract: High viscosity elastomers are often difficult to utilize in rubber compositions without first creating a pre-blend of the high viscosity elastomer and a rubber processing oil to reduce their overall viscosity. This invention relates to utilization of a specialized pre-blend of high viscosity and low viscosity elastomers for use in rubber compositions and to the resulting rubber composition. The use of such resulting rubber composition may be for component(s) of tires, particularly including tire treads. The specialized pre-blend of high and low viscosity elastomers is required to be created by blending individual latices or, alternatively, by blending individual polymerizates of elastomers with diverse viscosities.

Inventors: Sandstrom; Paul Harry (Tallmadge, OH), Blok; Edward John (Wadsworth, OH), Zanzig; David John (Uniontown, OH), Colvin; Howard Allen (Tallmadge, OH), Senyek; Michael Leslie (Tallmadge, OH)

Assignee: The Goodyear Tire & Rubber Company

International Classification: B60C 1/00 (20060101); C08F 236/00 (20060101); C08F 236/10 (20060101); C08L 9/06 (20060101); C08L 9/00 (20060101); B29D 029/00 (); B60C 005/00 ()

Expiration Date: 12/26/2017