Anthrapyridone compound or salt thereof, magenta ink...

Details Anthrapyridone compound or salt thereof, magenta ink... Anthrapyridone compound or salt thereof, magenta ink...

2011-01-18

2011-01-18

Klemanski, Helene (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C546S076000, C347S100000

Reexamination Certificate

active

07871464

ABSTRACT:
The present invention relates to an anthrapyridone compound represented by the following formula (1):wherein, n represents an integer number of 1 to 3, R1represents a hydrogen atom, an alkyl group or the like, R2represents a hydrogen atom or a methoxy group, R3represents an anilino group having, as a substituent, at least one group selected from the group consisting of sulfo group, a carboxy group, an alkoxy group, a carbamoyl group, an cyano group, an alkyl group, an anilino group, a phenoxy group, an amino group, a hydroxy group and a mercapto group, an unsubstituted anilino group or the like, or a salt thereof, and provides a magenta coloring matter (compound) having high solubility in water and a hue and vividness which are suitable for inkjet recording and being excellent in fastnesses such as light fastness, moisture fastness and ozone gas fastness on recorded matter; and a magenta ink composition containing it.

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International Search Report dated Nov. 18, 2008 in corresponding application (PCT/JP2008/065633).

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