Pressure-sensitive adhesive sheet for tire

C - Chemistry – Metallurgy – 09 – J

Patent

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Details

C09J 7/02 (2006.01) B60C 19/00 (2006.01) G09F 3/10 (2006.01)

Patent

CA 2574053

A pressure-sensitive adhesive sheet for a tire which has a base material and a pressure-sensitive adhesive layer, wherein said pressure-sensitive adhesive layer comprises a hot-melt type adhesive composition and further satisfies the following pressure-sensitive adhesion characteristics (A) and (B): (A) it exhibits a value of 7 N/25 mm or more in terms of the pressure-sensitive adhesion strength to a SBR plate at 5~C, and (B) it exhibits a value of 7 N/25 mm or more in terms of the pressure-sensitive adhesion strength to a SBR plate at 40~C. The above pressure-sensitive adhesive sheet exhibits a high pressure- sensitive adhesion strength to a tire in a wide range of temperature region and has a good pressure-sensitive adhesion strength also to a studless tire.

La présente invention concerne une feuille adhésive sensible à la pression pour pneu qui présente un matériau de base et une couche d'adhésif sensible à la pression, ladite couche d'adhésif sensible à la pression comprenant une composition adhésive de type thermofusible et répondant en outre aux caractéristiques d'adhésion sensible à la pression suivantes (A) et (B) : (A) elle affiche une valeur de 7 N/25 mm ou plus en termes de force d'adhésion sensible à la pression à une plaque SBR à 5 °C et (B) elle affiche une valeur de 7 N/25 mm ou plus en termes de force d'adhésion sensible à la pression à une plaque SBR à 40 °C. La feuille adhésive sensible à la pression ci-dessus affiche une force élevée d'adhésion sensible à la pression à un pneu dans une large plage de régions de températures et présente une bonne force d'adhésion sensible à la pression à un pneu sans clou.

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