Compositions: coating or plastic – Coating or plastic compositions – Marking
Reexamination Certificate
2007-04-03
2007-04-03
Klemanski, Helene (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Marking
C106S031430, C106S031490, C106S031510, C347S100000
Reexamination Certificate
active
11321530
ABSTRACT:
It is an object of the present invention to provide a black ink for an ink jet which possesses preferable color as a black ink for an ink jet, can attain high ozone resistance, high image density and sticking recovery property, and can suppress the decomposition of the compound represented by the general formula (I) or salt thereof during long-term storage. According to the present invention, there is provided a black ink for an ink jet characterized by comprising at least a compound represented by the following general formula (I) or a salt thereof, characterized in that the black ink comprises at least one moisture-retaining nitrogen compound, and the pH of the ink and the pH of the ink after storing for 10 days in an environment at a temperature of 60° C. are 9.5 or less.
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English translation of JP 2005/036164, Feb. 2005.
RN554433-03-3 Registry, copyright 2006 ACS on STN., Jul. 2003.
RN546079-42-9 Registry, copyright 2006 ACS on STN, Jul. 2003.
Mafune Kumiko
Nakamura Kunihiko
Okamura Daiji
Sato Shin'ichi
Takayama Hideki
Canon Kabushiki Kaisha
Klemanski Helene
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