Compositions: coating or plastic – Coating or plastic compositions – Marking
Reexamination Certificate
2011-03-08
2011-03-08
Klemanski, Helene (Department: 1734)
Compositions: coating or plastic
Coating or plastic compositions
Marking
C534S752000, C534S755000
Reexamination Certificate
active
07901498
ABSTRACT:
The present invention relates to a trisazo compound represented by the following formula (1):wherein, n represents 0 or 1, the group A represents a substituted heterocyclic group, R1represents a C1-C4 alkyl group which may be substituted or the like, R2represents a cyano group or the like, R3and R4each independently represent a hydrogen atom, a sulfo group or the like, R5to R7each independently represent a hydrogen atom, a C1-C4 alkyl group which may be substituted, a C1-C4 alkoxy group which may be substituted or the like, respectively or salt thereof. Said trisazo compound or salt thereof provides a coloring matter compound for black ink and an ink composition thereof where they have high solubility in medium where water is a principal component, their aqueous solution and ink having high concentration is stable even when stored for a long period of time, printed images therewith have very high density, no bronzing is caused on the images printed even with their high concentration solution, and they give black recorded images excellent in fastness, particularly in both light fastness and ozone gas fastness.
REFERENCES:
patent: 4012371 (1977-03-01), Roueche et al.
patent: 4565424 (1986-01-01), Huffman et al.
patent: 7217803 (2007-05-01), Feiler et al.
patent: 7550037 (2009-06-01), Mafune et al.
patent: 2006/0053571 (2006-03-01), Feiler et al.
patent: 2007/0062409 (2007-03-01), Mistry et al.
patent: 2009/0011130 (2009-01-01), Mafune et al.
patent: 2009/0062545 (2009-03-01), Matsui et al.
patent: 2 004 488 (1971-08-01), None
patent: 2006-509068 (2006-03-01), None
patent: 2007-517082 (2007-06-01), None
patent: WO 2008/096697 (2008-08-01), None
International Search Report dated Feb. 17, 2009.
Hirota Koji
Matsui Takahiko
Shimizu Shinsuke
Yoshimoto Takashi
Klemanski Helene
Nields, Lemack & Frame, LLC
Nippon Kayaku Kabushiki Kaisha
LandOfFree
Trisazo compound, ink composition, printing method and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Trisazo compound, ink composition, printing method and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trisazo compound, ink composition, printing method and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2668115