Composite sheet material

Details Composite sheet material Composite sheet material

1997-07-28

2000-04-04

Morris, Terrel

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Scrim

Nonwoven scrim

442382, 442389, B32B 2702

Patent

active

060461187

ABSTRACT:
A breathable composite sheet material includes a first layer of flash-spun polyethylene plexifilamentary film-fibril sheet and a second layer of a thermoplastic open mesh fabric thermally laminated to the first layer. The composite sheet has an average tensile strength and an average grab tensile strength that are each at least 10% greater than the sum of the tensile and grab strengths of the first and second layers. The average tensile strength of the composite sheet after exposure to 400 mJ/m.sup.2 of ultraviolet light is at least 65% of the tensile strength of the sheet before any substantial exposure to ultraviolet light.

REFERENCES:
patent: 3169899 (1965-02-01), Steuber
patent: 3532589 (1970-10-01), David
patent: 4684568 (1987-08-01), Lou
patent: 4929303 (1990-05-01), Sheth
patent: 5013599 (1991-05-01), Guckert
patent: 5032442 (1991-07-01), Yamazaki et al.
patent: 5182162 (1993-01-01), Andrusko
patent: 5290377 (1994-03-01), Aihara et al.
patent: 5300345 (1994-04-01), Aihara et al.
patent: 5763336 (1998-06-01), Jones et al.

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