Planographic printing plate

Details Planographic printing plate Planographic printing plate

2007-05-15

2007-05-15

Chu, John S. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

C430S162000, C430S165000, C430S270100, C430S281100, C430S288100

Reexamination Certificate

active

10389898

ABSTRACT:
A negative-type planographic printing plate having, disposed on a support, a recording layer comprising an image recording material which contains an infrared ray absorbing agent and can be recorded by irradiation with an infrared ray, in which, as for the infrared ray absorbing agent comprising a cyanine dye, at least one of substituents on nitrogen atoms at both ends was selected from the group consisting of the following substituents: —C(═X)R1; —C(═X)NR2R3; —CH≡CR4R5; —C≡CR6; —CHR7R8;—CR9R10R11; and —Ar, wherein X represents O, S or Se; R1to R6each independently represent H or a hydrocarbon group having 20 or fewer carbon atoms which may have a substituent; R7to R11each independently represent a hydrocarbon group having 20 or fewer carbon atoms which may have a substituent; and Ar represents an aromatic group which may have a substituent.

REFERENCES:
patent: 4708925 (1987-11-01), Newman
patent: 5340699 (1994-08-01), Haley et al.
patent: 5814431 (1998-09-01), Nagasaka et al.
patent: 6790590 (2004-09-01), Collins et al.
patent: 6794116 (2004-09-01), Oshima
patent: 7-103171 (1995-11-01), None

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