Flash spun sheet material having improved breathability

Details Flash spun sheet material having improved breathability Flash spun sheet material having improved breathability

2008-03-04

2008-03-04

Johnson, Jenna-Leigh (Department: 1794)

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

Nonwoven fabric

Including strand or fiber material which is a monofilament...

C442S340000, C442S414000

Reexamination Certificate

active

07338916

ABSTRACT:
A process is disclosed for flash spinning a nonwoven fibrous sheet from a polymeric solution containing about 12% to 33% by weight of filler particles. The filler is preferably insoluble in the polymer. The resulting plexifilamentary film-fibril sheet material has increased breathability with no decrease in liquid barrier.

REFERENCES:
patent: 3081519 (1963-03-01), Blades et al.
patent: 3169899 (1965-02-01), Steuber
patent: 3227794 (1966-01-01), Anderson et al.
patent: 3860369 (1975-01-01), Brethauer et al.
patent: 5512357 (1996-04-01), Shimura et al.
patent: 5603885 (1997-02-01), McGinty
patent: 6010970 (2000-01-01), McGinty et al.

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