The B. F. Goodrich Company

Robert W Hallman

Linwood P Tenney

James J Shipman

Leman G Beall, Jr

A puncture-sealing pneumatic tubeless tire comprising a sealant as its innermost layer and a tack layer disposed between said sealant and the air impervious liner. The tack layer is integral with the tire and allows the application and adherence of the sealant to the tire without first cleaning the inside of the tire. The tack layer is a soft, vulcanized layer consisting of cis-polyisoprene rubber and/or natural rubber.

Puncture-sealing tire

A puncture-sealing pneumatic tire has a soft, vulcanized inner layer consisting of cis-polyisoprene rubber and/or natural rubber. The inner layer is preferably coated with a polyolefin polymer that flows into punctures at operating temperatures and said polyolefin polymer adheres to the inner layer by means of surface tension alone.

A method of single stage construction of pneumatic tires of the radial type wherein all components are entirely assembled upon a cylindrical tire building drum and thereafter shaped to toroidal configuration with the requisite relative motion between components during shaping being facilitated by a lubricant, characterized in that the lubricant is contained in a composition including a thermoplastic with the composition applied to certain of the tire components in liquid form and dried prior to assembly of the components into the tire.

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Medina, OH, United States of America

Robert W Hallman