Tire vulcanization method, tire production method and tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorYoshinobu Nakamura
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Abstract
An object of the present invention is to provide a tire vulcanization method in which there is no air remained between a vulcanization mold and an unvulcanized tire in tire vulcanization, the unvulcanized tire easily fits the vulcanization mold and an occurrence of bareness is prevented. The present invention relates to a tire vulcanization process comprising an application process of applying a coating agent comprising powder on a surface of an unvulcanized tire and a vulcanization process of vulcanizing the unvulcanized tire obtained in the application process, a tire production method comprising the vulcanization method, and a tire produced by the tire production method.
Claims7
A tire vulcanization process comprising:
- applying a liquid coating agent on a surface of an unvulcanized tire;
- and
- vulcanizing the coated unvulcanized tire to produce a vulcanized tire product;
- wherein the liquid coating agent has a carbon black content that is not less than 70% by mass,
- wherein the liquid coating agent comprises carbon black, natural rubber latex and a surfactant, and
- wherein the applied amount of the coating agent is from 50 g/m2 to 80 g/m2.
A tire vulcanization process comprising:
- applying a coating agent on a surface of an unvulcanized tire;
- and
- vulcanizing the coated unvulcanized tire to produce a vulcanized tire product;
- wherein the coating agent consists of an inorganic powder selected from the group consisting of carbon black, talc, silica, and calcined clay,
- wherein the applied amount of the coating agent is not less than 3 g/m2.
Dependencies are inferred from the claim text.