Polymer laminate and pneumatic tire using the same as inner liner
AssigneeSumitomo Rubber Industries, Ltd.
InventorMutsuki Sugimoto
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Abstract
An object of the present invention is to provide a polymer laminate that has a small thickness and is excellent in air permeation resistance and adhesion with an adjacent rubber, and a pneumatic tire using the same as an inner liner. A polymer laminate includes a first layer having a thickness of 0.05 mm to 0.6 mm made of a styrene-isobutylene-styrene triblock copolymer, and a second layer containing at least one of a styrene-isoprene-styrene triblock copolymer and a styrene-isobutylene diblock copolymer, and a second layer have a thickness of 0.01 mm to 0.3 mm.
Claims4
A pneumatic tire using, as an inner liner, a polymer laminate comprising a first layer having a thickness of 0.05 mm to 0.6 mm and consisting essentially of a styrene-isobutylene-styrene triblock copolymer, and a second layer having a thickness of 0.01 mm to 0.3 mm and consisting essentially of a styrene-isobutylene diblock copolymer.
Dependencies are inferred from the claim text.