Patent ID: 8656973
Filing Date: 2014-02-25
Classification: B32B,B60C,C08K,C08L,Y10T

Abstract:
1. An inner liner of a polymer laminate comprising: a first layer composed of a polymer composition including a second layer composed of a thermoplastic elastomer composition containing wherein said styrene-isobutylene-styrene triblock copolymer has a weight-average molecular weight more than or equal to 50,000 and less than or equal to 400,000 and a styrene unit content more than or equal to 10% by mass and less than or equal to 30% by mass; and wherein said second layer further contains a rubber component of at least one kind selected from the group consisting of natural rubber, isoprene rubber, and butyl rubber, in addition to said thermoplastic elastomer composition, said rubber component being more than or equal to 20% by mass and less than or equal to 90% by mass with respect to a total of said thermoplastic elastomer composition and said rubber component.