Patent ID: 8221849
Filing Date: 2012-07-17
Classification: B29C,B29D,B29L,B60C

Abstract:
1. A method of producing a self-sealing pneumatic tire comprising the steps of: injecting a viscous sealant material onto an internal surface of a vulcanization molded pneumatic tire; rotating the pneumatic tire around a tire axis while forming the sealant material into a sealant layer diffused in a sheet form by centrifugal force, injecting a cover material comprising an unhardened rubber-based material or a resin-based material onto the internal surface of the sealant layer; rotating the pneumatic tire around the tire axis while forming the cover material into a cover sheet layer diffused in a sheet form by centrifugal force; and hardening the cover sheet layer by irradiating with an electron beam, infrared rays, ultraviolet rays, or ultrasonic waves.