[EN] THERMOCHROMIC COMPOSITIONS FROM TRISUBSTITUTED PYRIDINE LEUCO DYES<br/>[FR] COMPOSITIONS THERMOCHROMIQUES DE LEUCO-COLORANTS COMPRENANT UNE OU PLUSIEURS PYRIDINES TRISUBSTITUÉES
申请人:CHROMATIC TECH INC
公开号:WO2013049229A1
公开(公告)日:2013-04-04
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.
A dual biomimetic process for the selective aerobic oxidative coupling of primary amines using pyrogallol as a precatalyst. Isolation of the [5 + 2] cycloaddition redox intermediates
A bioinspired organocatalytic cascade reaction mimicking both purpurogallin biosynthesis and copper amine oxidases (CuAOs) activity is described, at roomtemperature under ambient air, for the activation of the α-C–H bond of primary amines. The reaction sequence uses low-cost commercially available pyrogallol as a precatalyst which undergoes an in situ oxidative self-processing step, resulting in its
Yellow Thermochromic Dyes, Inks Composition And Level Indicators
申请人:Chromatic Technologies, Inc.
公开号:US20160333210A1
公开(公告)日:2016-11-17
A new leuco dye produces a yellow color while demonstrating also exceptional light and thermal stability under light.
一种新的白色染料产生黄色,同时在光照下表现出卓越的光和热稳定性。
BIS(AMINOPHENOL) DERIVATIVE, PROCESS FOR PRODUCING SAME, POLYAMIDE RESIN, POSITIVE PHOTOSENSITIVE RESIN COMPOSITION, PROTECTIVE FILM, INTERLAYER DIELECTRIC FILM, SEMICONDUCTOR DEVICE, AND DISPLAY ELEMENT
申请人:Terakawa Koji
公开号:US20100044888A1
公开(公告)日:2010-02-25
A bis(aminophenol) derivative having substituents at positions adjacent to two amino groups is provided. The bis(aminophenol) derivative is used as a raw material of a polyamide resin for a positive-tone photosensitive resin composition. A polyamide resin comprising bis(aminophenol) and a structure derived from a carboxylic acid is also provided, the bis(aminophenol) having substituents at positions adjacent to the two amino groups. A positive-tone photosensitive resin composition comprising a polybenzooxazole precursor resin, exhibiting high sensitivity and a high cyclization rate even when cured at a low temperature is provided. Also provided is a positive-tone photosensitive resin composition comprising a polyamide resin having an imide structure, an imide precursor structure, or an amide acid ester structure. The composition exhibits high sensitivity and produces a cured product having low water absorption even when cured at a low temperature.
[EN] RED THERMOCHROMIC DYES AND THEIR INK COMPOSITIONS<br/>[FR] COLORANTS THERMOCHROMIQUES ROUGES ET COMPOSITIONS D'ENCRE CORRESPONDANTES
申请人:CHROMATIC TECH INC
公开号:WO2015048536A1
公开(公告)日:2015-04-02
A red leuco dye demonstrates unusually good thermal and photo stability. The red dye may be used with developers and wax carries for microencapsulation to form thermochromic pigments for use in inks, coatings and the like. This pigment is particularly desirable for use in metal-deco coatings, such as those used in aluminum cans in high beverage canning operations.