QUINOPHTHALONE COMPOUND AND COLORING COMPOSITION
PROBLEM TO BE SOLVED: To provide a yellow compound excellent in color characteristics such as coloring power, clarity and hue and in durability such as light resistance and heat resistance.SOLUTION: A quinophthalone compound is represented by general formula (1). In the formula: A is a divalent orga...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
26.04.2012
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a yellow compound excellent in color characteristics such as coloring power, clarity and hue and in durability such as light resistance and heat resistance.SOLUTION: A quinophthalone compound is represented by general formula (1). In the formula: A is a divalent organic residue. Preferably, the organic residue is selected from a phenylene group, an alkylene group, an alicyclic alkylene group, and specific connected biphenyl groups. |
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Bibliography: | Application Number: JP20100230603 |