Patent ID: 8703860

Claim:
An uncrosslinked elastomeric composition, suitable for elastic film or fiber, comprising: a block copolymer containing from about 0 wt. % to about 75 wt. % of at least two end blocks of monovinyl arene and at least one block of conjugated diene, and from about 20 wt. % to about 100 wt. % of paramethylstyrene-isoprene/butadiene-paramethylstyrene of the formula PMS-I/B-PMS linear block copolymer or (PMS-I/B) n X coupled block copolymer, where n is a number between 2 to about 30, and X is the residue of a coupling agent, and where the melt flow rates of the individual block copolymer containing at least two end blocks of monovinyl arene and at least one block of conjugated diene, and PMS-I/B-PMS polymers are about 5 g polymer per 10 minutes, or greater, when measured at 200° C. and 5 kg weight according to ASTM D1238; said composition optionally further including: 0 to about 0.5 wt. % primary antioxidant; 0 to about 0.5 wt. % secondary antioxidant; and 0 to about 0.8 wt. % carbon radical scavenger; wherein the total wt. % of all components is 100% and wherein said uncrosslinked elastomeric composition has a tensile strength of at least 2200 psi.