Laminate having indicator function

Details Laminate having indicator function Laminate having indicator function

1990-12-18

1992-07-28

Schroeder, Werner H.

Apparel

Hand or arm coverings

Gloves

2167, A41D 1900

Patent

active

051330873

ABSTRACT:
A laminate comprising an inner layer containing an acid/base indicator and an outer layer containing no acid/base indicator, wherein the inner layer is capable of undergoing a color change upon its contact with an acid or an alkali.

REFERENCES:
patent: 4843014 (1989-06-01), Cukier
patent: 4910803 (1990-03-01), Cukier
patent: 4935260 (1990-06-01), Shlenker
patent: 4935308 (1990-06-01), Guerra et al.
patent: 4992335 (1991-02-01), Guerra et al.
patent: 5017427 (1991-05-01), Machida et al.

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