Self-seal tire and method of producing the same

B - Operations – Transporting – 60 – C

Patent

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Details

B60C 19/12 (2006.01) B29C 73/16 (2006.01) B29C 73/20 (2006.01) B29C 73/22 (2006.01) B29D 30/08 (2006.01)

Patent

CA 2417166

A self-seal tire has a puncture seal layer extending from one shoulder portion of a pneumatic tire to the other shoulder portion over the entire inner wall surface of the tire. This puncture seal layer is composed of a strip-like seal layer provided with an adhesive layer made of adhesive material on the tire wall surface side surface of a strip-like sponge layer which is impregnated with an adhesive material in such a manner as to be exposed to the tire wall surface side but not to be exposed to the tire opposite wall surface side, the strip-like seal layer being stuck, in a state in which it is wrapped circumferentially of the tire, to the inner wall surface of the tire through an adhesive layer.

La présente invention concerne un pneu auto-obturant comprenant une couche anti-crevaison qui s'étend depuis une partie d'épaulement du pneu jusqu'à l'autre partie d'épaulement, sur toute la surface de la paroi intérieure du pneu. La couche anti-crevaison précitée est composée d'une couche d'étanchéité de type bande comprenant une couche adhésive réalisée dans une matière adhésive sur la surface située du côté de la paroi du pneu d'une couche spongieuse de type bande qui est imprégnée d'une matière adhésive de façon qu'elle est exposée à un côté de la surface de la paroi du pneu mais n'est pas exposée au côté opposé de la surface de la paroi du pneu, la couche d'étanchéité de type bande étant collée, dans un état dans lequel elle entoure la circonférence du pneu, sur la surface intérieure de la paroi du pneu, à travers une couche adhésive.

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