Low permeability fabric

Details Low permeability fabric Low permeability fabric

1988-10-28

1990-12-11

Bell, James J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

428229, 428255, D03D 300

Patent

active

049770160

ABSTRACT:
A strong, lightweight, thin, flexible fabric of low permeability comprising an uncoated woven cloth characterized by a permeability of not more than one cubic foot of air per minute per square foot of cloth (0.5 cm.sup.3 /sec/cm.sup.2) at a pressure drop of 0.5 inch of water (1.27 cm) across the cloth. The cloth is calendered on both sides to reduce its permeability.

REFERENCES:
patent: 3470928 (1969-10-01), Schwartz
patent: 3705645 (1972-12-01), Konen
patent: 3730551 (1973-05-01), Sack et al.
patent: 3879056 (1975-04-01), Kawashima et al.
patent: 3879057 (1975-04-01), Kawashima et al.
patent: 3892425 (1975-07-01), Sakairi et al.
patent: 3937488 (1976-02-01), Wilson et al.
patent: 4225642 (1980-09-01), Hirakawa
patent: 4872276 (1989-10-01), Godfrey

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