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US 9,345,270 B2Granted
Water-activated thermochromic materials
AssigneeChromatic Technologies, Inc.
InventorsTimothy J. Owen, Terrill Scott Clayton
Life of this patent
Estimating the term…
Abstract
An article of clothing is coated or impregnated with a coating that contains thermochromic pigment. The pigment is constructed to change color when wet with water, and/or to provide a hyperthermic warning when a person wearing the clothing is over-warm.
Claims20
A method of using a thermochromic pigment to indicate an interaction with a fluid, said method comprising:
- providing a wearable article including said thermochromic pigment which changes color upon exposure to a temperature less than an activation temperature;
- and
- cooling said wearable article to said temperature less than said activation temperature by said interaction with said fluid, thereby changing said color of said thermochromic pigment.
Dependencies are inferred from the claim text.