Patent ID: 9579532
Date: 2017-02-28
CPC Classifications: A62D,B32B,G01N,Y10T

Claim:
1. A breach or contamination indicating elastomeric article for indicating a breach or contamination by a selected chemical or group of chemicals, the article having an exterior and interior and comprising: an interior elastomeric layer selected to resist permeation by the selected chemical(s), which interior layer is colored; and a contiguous or dis-contiguous indicating layer comprising dispersed solid particles of hydrophobic dye configured to provide enhanced color on contacting hexane, cyclohexane, xylene, ethyl ether, butyl acetate, methyl isobutyl ketone, methanol, acetonitrile and acetic acid, said solid form being a precipitate or crystalline form; wherein the distribution of the indicating layer is configured to provide a visually noticeable color change against the background of the colored interior elastomeric layer upon a breach or contamination event by a selected chemical, and wherein the solid particles are concentrated so as to reduce their color impact prior to breach or contamination indication by being in said solid form.