Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1986-09-03
1987-11-17
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
427246, 428265, 428290, 4283155, 428913, 4284231, B32B 700
Patent
active
047074000
ABSTRACT:
Water vapor permeable yet waterproof coated fabrics are prepared by applying a polyurethane resin solvent solution to a base fabric then immersing the coating to coagulate the resin leaving a thin, microporous coating on the fabric. An acrylic acid thickener system is included in the resin solution to provide moisture vapor transmission rates of at least 600 g/m.sup.2 /24 hrs and hydrostatic pressure resistance of at least 10 psi.
REFERENCES:
patent: 4029534 (1977-06-01), Bocks et al.
patent: 4282285 (1981-08-01), Mohudden
patent: 4429000 (1984-01-01), Naka et al.
"Recent Developments in Coated Apparel", by Robert Lomax, Journal of Coated Fabrics, vol. 14, Oct. 1984, pp. 91-99.
Data Sheets from Morton Thiokol's Texthane Products Including Product Information for Texthane 420C and 620C.
Bell James J.
Burlington Industries Inc.
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