US Patent No. 9,388,313

WATER-INSOLUBLE COLORING COMPOUND, INK, THERMAL TRANSFER RECORDING SHEET, AND COLOR FILTER RESIST COMPOSITION


Patent No. 9,388,313
Issue Date July 12, 2016
Title Water-insoluble Coloring Compound, Ink, Thermal Transfer Recording Sheet, And Color Filter Resist Composition
Inventorship Yuko Katsumoto, Yokohama (JP)
Shosei Mori, Hiratsuka (JP)
Takeshi Sekiguchi, Tokyo (JP)
Taichi Shintou, Saitama (JP)
Takayuki Ujifusa, Ashigarakami-gun (JP)
Takeshi Miyazaki, Ebina (JP)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 9,388,313

1. A water-insoluble coloring compound having a structure represented by Formula (1):

in Formula (1), R1 represents an alkyl group, an aryl group, or an amino group; R2 represents a carboxylic acid ester, a carboxylic acid monoalkylamide or a carboxylic acid dialkylamide; A represents a carbonyl
group or a sulfonyl group; and R3 and R4 each independently represent an n-butyl group, an octyl group, a cyclohexyl group, a 2-ethylhexyl group, a dodecyl group or
a phenyl group.