The Goodyear & Tire Rubber Company

James Cletus Sykora

Walter Kevin Westgate

Thomas Reed Oare

Frederick William Miller

Efimia Ellen Rohweder

Anthony John Fierro

Charles Elmer Hamiel

A method for constructing an elastomeric composite ply comprises using parallel S and Z twisted cords to reinforce an elastomeric matrix. The S and Z cords are made inexpensively by using a yarn twist that is less than the cord twist. Composite plies made by the method can be used in elastomeric articles such as tires.

Reinforcement for rubber composites

High modulus reinforcement is used to make a radial ply pneumatic tire having only one carcass ply, i.e. a monoply tire. Poly-ethylene naphthalate (PEN) reinforcement is prepared in a manner that provides sufficient strength whereby the monoply tire can be made having reduced weight (as compared to a two ply tire) while having comparable durability, some improved handling, reduced rolling resistance, and improved flatspotting properties.

Tire with PEN reinforcement

Pen reinforcement for rubber composites

Tire tread

A radial ply pneumatic tire (10) has an overlay structure (19) disposed radially outwardly of the belt reinforcing structure (14). The overlay structure (19) comprises side by side cables of 420/2 nylon having a cable twist of not greater than seven turns per inch.

Pneumatic tire with belt overlay structure reinforced with low denier

Growing community of inventors

Uniontown, OH, United States of America

James Cletus Sykora