Multilayer film for chemical protective clothing

Details Multilayer film for chemical protective clothing Multilayer film for chemical protective clothing

1988-05-16

1990-05-15

Van Balen, William J.

Apparel

Guard or protector

Body cover

2 21R, 2 21A, 2243A, 428480, 428483, 428516, 428520, A41D 1300, B32B 2708, B32B 3200, B32B 3600

Patent

active

049245252

ABSTRACT:
An improved chemical protective garment is provided by first forming a multilayer film structure having an inner layer of substantially isotactic oriented polypropylene homopolymer sandwiched between a layer of ethylene-propylene random copolymer and a layer of ethylene-vinyl acetate. The multilayer film structure is then bonded to a two-layer polyester substrate using an elastomeric adhesive. In a preferred embodiment, a barrier material having a layer of ethylene-vinyl alcohol is combined with the multilayer film structure to form a composite, which is then combined with the substrate.

REFERENCES:
patent: 2981954 (1961-05-01), Garbellano
patent: 3112300 (1963-11-01), Natta et al.
patent: 3294617 (1966-12-01), Way
patent: 3560325 (1971-02-01), Sogi et al.
patent: 3620435 (1971-11-01), Sogi
patent: 3882259 (1975-05-01), Nohara et al.
patent: 4082854 (1978-04-01), Yamada et al.
patent: 4190010 (1980-02-01), Bibby
patent: 4272851 (1981-06-01), Goldstein
patent: 4478070 (1988-03-01), Beehler
patent: 4522203 (1985-06-01), Mays
patent: 4555293 (1985-11-01), French

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