Elastomeric composite material and method of making same

Details Elastomeric composite material and method of making same Elastomeric composite material and method of making same

B - Operations, Transporting

32

B

154/93

B32B 5/04 (2006.01)

Patent

CA 1334376

An extrudable composition for forming nonwoven elasto- meric material having pressure sensitive adhesive proper- ties, nonwoven elastomeric sheet material (e.g., fibrous nonwoven webs) formed of such composition, stretch bonded laminates using such sheets, and methods of forming such sheets and such laminates, are disclosed. The composition includes an elastomeric polymer and a tackifying resin, and can also include a polyolefin. The nonwoven sheet material can be a meltblown nonwoven web. The laminate can be formed by tensioning the elastomeric sheet material and bonding a gatherable web (e.g., a spunbond polypropylene web) to the tensioned sheet material by application of pressure, the bonding being accomplished due to the adhesivity of the elastomeric sheet material and without application of heat for softening the sheet material and/or gatherable web.

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