Patent ID: 8299177

Claim:
A block copolymer composition comprising: (1) a hydrogenated block copolymer that has at least one block A and at least one block B, and wherein: a. prior to hydrogenation each A block is a mono alkenyl arene homopolymer block and each B block is a controlled distribution copolymer block of at least one conjugated diene and at least one mono alkenyl arene; b. subsequent to hydrogenation about 0-10% of the arene double bonds have been reduced, and at least about 90% of the conjugated diene double bonds have been reduced; c. each A block having a number average molecular weight between about 3,000 and about 60,000 and each B block having a number average molecular weight between about 30,000 and about 300,000; d. each B block comprises terminal regions adjacent to the A blocks that are rich in conjugated diene units and one or more regions not adjacent to the A blocks that are rich in mono alkenyl arene units; e. the total amount of mono alkenyl arene in the hydrogenated block copolymer is about 20 percent weight to about 80 percent weight; and f. the weight percent of mono alkenyl arene in each B block is between about 10 percent and about 75 percent, (2) about 10 to about 90 percent by weight of a styrene-isobutylene-styrene block copolymer; and (3) optionally about 0 to about 40 percent by weight of an extender oil or tackifying resin wherein the total wt. % of the composition is 100 wt. %, wherein the composition has a light transmittance between about 70 to about 90% transmission, including all points in-between, according to ASTM D1003, and a haze between about 5 to about 50%, including all points in-between, according to ASTM D1003, and a tan delta value of the range from about 0.8 to about 1.5.