Low stress relaxation elastomeric nonwoven webs and fibers

Details Low stress relaxation elastomeric nonwoven webs and fibers Low stress relaxation elastomeric nonwoven webs and fibers

C - Chemistry, Metallurgy

08

L

18/636.1

C08L 53/00 (2006.01) C08L 53/02 (2006.01) D04H 1/58 (2006.01)

Patent

CA 2029617

An elastic nonwoven web is formed from elastic fibers composed of a blend of (1) a styrene-poly(ethylene- propylene)-styrene thermoplastic. elastomeric block copolymer or a mixture of a styrene-poly(ethylene- propylene)-styrene elastomeric block copolymer and a styrene-polyethylene-butylene)-styrene elastomeric block copolymer, and (2) a tackifying resin in which the elastic nonwoven web has a stress relaxation of less than about 30 percent. the blend used to form the elastic nonwoven web and/or elastic fibers may also include a polyolefin and an extending oil.

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