Abstract: A composition is provided which is suitable for extrusion blowing to form an elastomeric film. The film produced from this composition has a very low modulus, high elongation and excellent elastic recovery. The composition includes: two hydrogenated block copolymers each including at least two blocks containing predominantly polymerized alkene arene monomer units and at least one block containing predominantly polymerized conjugated diene monomer units, the first hydrogenated block copolymer having a molecular weight between about 55,000 and about 200,000 and the second hydrogenated block copolymer having a molecular weight between about 15,000 and about 85,000, the ratio of the molecular weight of the first to the second being greater than 1.

Abstract: The properties of polymer films which contain thermoplastic block copolymer compositions and ethylene/vinyl acetate copolymers are improved by the addition of small amounts of polystyrene. Specific improvements have been made in elastically and tensile strength as well as in reduced die build-up during processing.

Abstract: A composition is provided which is suitable for extrusion blowing to form an elastomeric film. The film produced from this composition has a very low modulus, high elongation and excellent elastic recovery. The composition comprises: two hydrogenated block compolymers each comprising at least two blocks containing predominantly polymerized alkene arene monomer units and at least one block containing predominantly polymerized conjugated diene monomer units, the first hydrogenated block copolymer having a molecular weight between about 55,000 and about 200,000 and the second hydrogenated block copolymer having a molecular weight between about 15,000 and about 85,000, the ratio of the molecular weight of the first of the second being greater than 1.