Gas resistant foam materials

Details Gas resistant foam materials Gas resistant foam materials

1976-04-07

1977-08-30

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

2 2, 428311, 428323, 428425, B32B 700

Patent

active

040456099

ABSTRACT:
Laminated fabric materials which are resistant to the passage of noxious chemicals in the form of liquids and condensible vapors and gases, but which are relatively permeable to air and water vapor, are described. Said laminated materials comprise (a) an air and water vaporpermeable open cell solid resin foam resistant to passage therethrough of noxious chemicals in liquid or vapor form, said foam having dispersed therein a particulate adsorbent material for said noxious chemicals, said particulate adsorbent material being bonded in said foam by an organic binder which is substantially free from substances which substantially deactivate the adsorbent; and (b) an air and water vapor-permeable fabric backing to which the aforesaid foam is bonded.

REFERENCES:
patent: 3238056 (1966-03-01), Pall et al.
patent: 3463690 (1969-08-01), Converse et al.
patent: 3632533 (1972-01-01), Winkler
patent: 3647607 (1972-03-01), Hillero
patent: 3748217 (1973-07-01), May et al.

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