LOW STRESS RELAXATION COMPOSITE ELASTIC MATERIAL

    公开(公告)号:CA2029618A1

    公开(公告)日:1991-07-11

    申请号:CA2029618

    申请日:1990-11-08

    Abstract: A composite elastic material having a stress relaxation of less than about 30 percent is composed of at least one elastic sheet formed from a blend of (1) a styrene-poly(ethylene-propylene)-styrene thermoplastic elastomeric block copolymer or a mixture of styrene-poly(ethylene-propylene)-styrene and styrene-polyethylene-butylene)-styrene elastomeric block copolymers, and (2) a tackifying resin. The blend may also include a polyolefin and/or an extending oil. The elastic sheet is joined to at least one gatherable layer at spaced-apart locations in which the gatherable layer is gathered between the spaced-apart locations so that the composite material is elastic.

    LOW STRESS RELAXATION ELASTOMERIC NONWOVEN WEBS AND FIBERS

    公开(公告)号:CA2029617A1

    公开(公告)日:1991-07-11

    申请号:CA2029617

    申请日:1990-11-08

    Abstract: 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-poly(ethylene-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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