Respirator with a protective covering of coated fabric

Details Respirator with a protective covering of coated fabric Respirator with a protective covering of coated fabric

1990-06-27

1992-06-09

Burr, Edgar S.

Surgery

Respiratory method or device

Including body or head supported means covering user's scalp

12820123, 12820124, A62B 1704

Patent

active

051198088

ABSTRACT:
A respirator arrangement including a protective covering, particularly an antismoke hood, and a respiratory connection which is connected to a chemical that absorbs water vapor and CO.sub.2 and releases oxygen, and whose covering or hood material consists of a coated composite material. The coated composite material includes a support fabric of tear-resistant, heat-resistant, and water vapor repellent fibers formed such that the material for the protective covering and the components carrying the respiratory gas stores or releases the smallest possible amount of water vapor, and is resistant to breakage and tearing while having elasticity and suppleness, and can be processed easily. The composite material has a support fabric 1 of glass fibers 2 that has a silane interlayer 5 as adhesion promoter, to which is applied a PVC coating 3 on the side facing the surroundings, and to which is applied a silicone coating 4 on the surface away from the PVC coating 3.

REFERENCES:
patent: 3521629 (1970-07-01), Reynolds
patent: 4440164 (1984-04-01), Werjefelt
patent: 4523588 (1985-06-01), Dolsky
patent: 4627431 (1986-12-01), Werjefelt
patent: 4637383 (1987-01-01), Lopez

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