Block copolymer-polyolefin elastomeric films

Details Block copolymer-polyolefin elastomeric films Block copolymer-polyolefin elastomeric films

C - Chemistry, Metallurgy

08

L

400/3080, 18/796

C08L 23/02 (2006.01) B29D 7/00 (2006.01) C08L 53/00 (2006.01)

Patent

CA 1300779

ABSTRACT OF THE DISCLOSURE An elastomeric film which includes from at least about 10 percent, by weight, of an A-B-A' block copolymer where "A" and "A' n are each a thermoplastic endblock which has a styrenic moiety and where "B" is an elastomeric poly (ethylene-butylene) midblock and from greater than 0 percent,, by weight, and up to about 90 percent, by weight, of a polyolefin which, when blended with the A-B-A' block copolymer and subjected to an effective combination of elevated temperature and elevated pressure conditions, can be extruded, in blended form, with the A-B-A' block copolymer is disclosed. A method for forming the film is also disclosed.

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