Method of producing a foam fibrillated web

Details Method of producing a foam fibrillated web Method of producing a foam fibrillated web

1973-01-02

1976-06-08

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

260 25E, 260 25HA, 264 54, 264210R, 264DIG8, 264DIG47, 428109, 428136, 428910, B29C 2500, B29D 2700, B29D 724

Patent

active

039623882

ABSTRACT:
Non-woven fabrics are produced from oriented foam fibrillated webs containing 75 to 98 wt. % polypropylene and 2 to 25 wt. % of an ethylene-vinyl acetate copolymer containing from 2 to 40 wt. % vinyl acetate and 60 to 98 wt. % ethylene. The webs are assembled in a plurality of layers and then bonded by heat and pressure either with or without the presence of an adhesive. In a preferred aspect films especially of polyethylene or ethylene-vinyl acetate copolymers are used as the bonding agent.

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