Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1978-06-29
1980-03-18
Ansher, Harold
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
2 82, 2 87, 2135, 2DIG1, 2DIG5, 264127, 428321, 428422, 428513, 428516, 428523, 4284231, A41B 1700, A41D 304, B32B 2740, B32B 2728
Patent
active
041940415
ABSTRACT:
A waterproof article for use in, for example, protective clothing. The article prevents liquid water from penetrating through to undergarments while at the same time permitting moisture vapor such as perspiration to pass out through the article. The article is thus both breathable and waterproof. The article is layered: a microporous hydrophobic outer layer which permits the passage of moisture vapor but resists penetration by liquid water at pressures up to about 345 Kn/m.sup.2 ; a hyrophilic inner layer permitting the transfer of moisture vapor but preventing surface tension lowering agents such as those contained in perspiration and/or body oils from reaching the hydrophobic layer.
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patent: 3228821 (1966-01-01), Trope
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patent: 4154876 (1979-05-01), Segawa et al.
Business Week, "The Fabric that Revolutionized the Amer. Coach-Naughahyde," May 28, 1978.
"Polyurethane Coatings," published by Nayes Data Corp., copyright1972, Chapter 2, pp. 138-232.
Allen, Jr. Samuel B.
Gore Robert W.
Ansher Harold
Campbell John S.
W. L. Gore & Associates, Inc.
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