Protective covers with water and air impenetrable seams

Stock material or miscellaneous articles – Sheet including cover or casing – Complete cover or casing

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156267, 156269, 156290, 156291, 156295, 428 68, 428192, 428143, 428246, 428252, 428253, 428284, 428286, 428421, 428422, B32B 104

Patent

active

057005443

ABSTRACT:
The present invention is an improved protective cover for use in protecting a wearer against liquid contact, even under highly demanding conditions. The present invention identifies previously ignored voids in seams as a chief cause of failure in protective garments and other covers in shielding against air, liquid or virus penetration over an extended period of time. By sealing the seams with adhesive so as to fully encapsulate fibers therein and reduce void size to less than 10 micron, the risk leakage through the cover is dramatically reduced.

REFERENCES:
patent: 3625790 (1971-12-01), Ayres
patent: 3953566 (1976-04-01), Gore
patent: 3962153 (1976-06-01), Gore
patent: 4096227 (1978-06-01), Gore
patent: 4185330 (1980-01-01), Stager
patent: 4187390 (1980-02-01), Gore
patent: 4194041 (1980-03-01), Gore et al.
patent: 4532316 (1985-07-01), Henn
patent: 4918754 (1990-04-01), Leatherman et al.
Patent Abstracts of Japan, vol. 16, No. 425 (C-0982), 7 Sep. 1992 & JP A 04 146201 (Japan Gore Tex Inc.), 20 May 1992.
ASTM-ES22-92, "Emergency Standard Test Method For Resistance of Protective Clothing Materials to Penetration by Blood-Borne Pathogens Using Viral Penetration as a Test System.sup.1, 2 ".

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