ロイコ染料およびポリハロゲン化合物を使用した熱開始剤システム

Japanese Patent JP4037676

B2

The present invention relates to IR-sensitive compositions containing an initator system comprising: (a) at least one compound capable of absorbing IR radiation selected from triarylamine dyes, thiazolium dyes, indolium dyes, oxazolium dyes, cyanine dyes, polyaniline dyes, polypyrrole dyes, polythiophene dyes and phthalocyanine pigments (b) at least one compound capable of producing radicals selected from polyhaloalkyl-substituted compounds (c) at least one polycarboxylic acid represented by the following formula I R<4>-(CR<5>R<6>)r-Y-CH2COOH wherein Y is selected from the group consisting of O, S and NR<7>, each of R<4>, R<5> and R<6> is independently selected from the group consisting of hydrogen, C1-C4 alkyl, aryl which is optionally substituted, -COOH and NR<8>CH2COOH, R<7> is selected from the group consisting of hydrogen, C1-C6 alkyl, -CH2CH2OH, and C1-C5 alkyl substituted with -COOH, R8 is selected from the group consisting of -CH2COOH, -CH2OH and -(CH2)2N(CH2COOH)2 and r is 0, 1, 2 or 3 with the proviso that at least one of R<4>, R<5>, R<6>, R<7> and R<8> comprises a -COOH group or salts thereof, and (d) at least one leuco dye, wherein the following inequation is met: oxa < redb + 1.6 eV with oxa = oxidation potential of component (a) in eV   redb = reduction potential of component (b) in eV These compositions are inter alia extraordinarily suitable for the manufacture of printing plates.

Ursula Mueller
Tobias Wittig
Hans-Joachim Tinpe

JP2002107119A

January 23, 2008

April 09, 2002

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Kodak Polychrome Graphics Company Limited

C08F2/48; G03F7/004; B41C1/10; B41N1/14; C08F4/00; G03F7/00; G03F7/029; G03F7/038; G03F7/11; B41M5/40; B41M5/46

JP2002537419A
JP2000979A
JP5194619A
JP4239505A
JP9118706A
JP10142780A

Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Satoshi Deno
Masaya Nishiyama

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