C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1708, 400/30
C08L 53/02 (2006.01) C08J 5/18 (2006.01) D01F 6/58 (2006.01) D04H 1/42 (2006.01)
Patent
CA 1324694
A B S T R A C T ELASTOMERIC FIBERS, STRUCTURES FASHIONED THEREFROM AND ELASTOMERIC FILMS An elastomeric fibre or film prepared from a composition comprising at least one block copolymer containing at least two polymeric blocks containing predominantly monoalkenyl aromatic hydrocarbon monomer units having a weight-average molecular weight within the range from 4,000 to 50,000 and at least one poly- meric block containing predominantly hydrogenated conjugated diolefin monomer units having a weight- average molecular weight within the range from 10,000 to 200,000, a relatively low molecular weight polymer selected from the Group consisting of anionic styrene homopolymers, alpha-methylstyrene homopolymers, hydrogenated styrene, copolymers of alpha-methylstyrene and styrene and mixtures thereof and may contain a wax. In particularly preferred embodiments, the elasto- meric fibre or film will contain at least one A-B-A triblock copolymer and an A-B' diblock copolymer. In even more preferred embodiments, the elastomeric fibres or films will contain at least two A-B-A triblock copolymers and at least one A-B' diblock copolymer.
574945
Shell Canada Limited
Smart & Biggar
LandOfFree
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