Polyolefin-containing extrudable compositions and methods for th

Details Polyolefin-containing extrudable compositions and methods for th Polyolefin-containing extrudable compositions and methods for th

1985-07-30

1987-05-05

Bell, James J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

428224, 428288, 428903, D04H 158

Patent

active

046632204

ABSTRACT:
The disclosure is generally directed to an extrudable elastomeric composition formed by blending from at least 10 percent, by weight, of an A-B-A' block copolymer where "A" and "A'" are each a thermoplastic endblock which includes a styrenic moiety and where "B" is an elastomeric poly(ethylene-butylene) midblock with up to at least about 90 percent, by weight, of at least one polyolefin which, when blended with the A-B-A' block copolymer and subjected to an effective combination of elevated temperature and elevated pressure conditions, is adapted to be extruded in blended form, with the A-B-A' block copolymer. Fibrous nonwoven elastomeric webs may be formed from the extrudable composition and processes for forming the fibrous nonwoven elastomeric webs are also disclosed.

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