23-05-2013 дата публикации
Номер: US20130131540A1
Принадлежит:
HOT DOT, INC.
A thermocromatic device for detecting body temperature includes a substrate treated with a thermocromatic composition. The thermocromatic composition includes a thermocromatic agent that changes color at a predetermined temperature indicative of a condition to be detected. 1. A thermocromatic device for detecting body temperature , consisting of:a substrate; anda thermocromatic composition on said substrate, said thermocromatic composition consisting of (a) between 0.1 and 75.0 weight percent of a thermocromatic agent that changes color at a predetermined temperature indicative of a temperature related condition to be detected, (b) between 0.1 and 1.0 weight percent negatively charged ionizing agent and (c) a remainder carrier selected from a group consisting of water, alcohols, polyols, phthalates, plastisol, polyvinyl alcohol and mixtures thereof wherein said negatively charged ionizing agent is selected from a group consisting of diatomaceous earth, choline chloride, modified polyolefins and mixtures thereof.2. The device of claim 1 , further including an adhesive for positively securing said substrate to skin on a body to be monitored.3. The device of claim 1 , wherein said thermocromatic agent is selected from a group consisting of a thermocromatic ink claim 1 , a thermocromatic liquid crystal ink claim 1 , a chiro nematic liquid crystal ink claim 1 , cholesteryl nonanoate claim 1 , a cyanobisphenyl claim 1 , a combination of sholesteryl and nematic inks claim 1 , a mixture of chiral nematic and cholestric esters claim 1 , a mixture of leuco dyes with a weak acid claim 1 , a mixture of crystal violet lactone claim 1 , a spirolactone claim 1 , a fluoran claim 1 , a spiropyran claim 1 , a fulgide or a fulgide with bisphenol A claim 1 , a paraben claim 1 , octadecylphosphoric acid claim 1 , a 1 claim 1 ,2 claim 1 ,3-triazole derivative or 4-hydroxycoumarin claim 1 , a mineral oxide claim 1 , zinc oxide claim 1 , lead oxide claim 1 , cuprous mercury iodide claim 1 ...
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