Moisture sensitive film

Details Moisture sensitive film Moisture sensitive film

1989-01-27

1992-12-01

Isabella, David

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

A61F 1315

Patent

active

051676524

ABSTRACT:
A moisture sensitive film is produced by blending a copolyester with a moisture absorbing copolyamide, and extruding the blend either as a mono layer or multi layer construction. The blend material turns white when wetted. The invention has particular application in disposable diapers where a visual indication of wetness is desired.

REFERENCES:
patent: 4231370 (1980-11-01), Mroz et al.
patent: 4681576 (1987-07-01), Colon et al.
patent: 4895567 (1990-01-01), Colon et al.

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