Patent ID: 8349963

Claim:
An elastic material comprising a crosslinked network, the crosslinked network containing a linear block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks, wherein the monoalkenyl aromatic midblock constitutes from 15 wt. % to about 30 wt. % of the copolymer and has a number average molecular weight of from about 5,000 to about 35,000 grams per mole, wherein the copolymer is a triblock copolymer, the monoalkenyl aromatic midblock includes styrene or a styrene derivative, the conjugated diene endblocks include butadiene, and from about 5 to about 25 mole percent of the butadiene units in the conjugated diene endblocks have 1,2 vinyl configuration; wherein the elastic material is a melt-extruded film.