Thermochromic Compositions From Trisubstituted Pyridine Leuco Dyes
申请人:Krutak James J.
公开号:US20130075675A1
公开(公告)日:2013-03-28
A thermochromic leuco dye composition contains a leuco dye moiety including one or more tri-aryl substituted pyridines, a UVA developer moiety including at least one UVA developer selected from the group consisting of salicylic acid and derivatives thereof, and biphenyls and derivatives thereof, and a carrier selected from the group consisting of a fatty ester, fatty alcohol, fatty amide, and combinations thereof.
YELLOW THERMOCHROMIC DYES, INKS COMPOSITION AND LEVEL INDICATORS
申请人:Chromatic Technologies, Inc.
公开号:EP3017010B1
公开(公告)日:2017-05-17
THERMOCHROMIC SYSTEMS WITH CONTROLLED HYSTERESIS
申请人:Owen Timothy
公开号:US20130193386A1
公开(公告)日:2013-08-01
The present disclosure is a method for controlling the hysteresis window and improving the color switching properties of reversible thermochromic dye systems. The method adds preferred co-solvents to existing reversible thermochromic dye systems in order to decrease the temperature range between the full color point and the clearing point. The co-solvents also add resistance to ultraviolet radiation.