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Soluble chromophores containing solubilising groups which can be easily removed

  • US 6,063,924 A
  • Filed: 07/22/1996
  • Issued: 05/16/2000
  • Est. Priority Date: 07/28/1995
  • Status: Expired due to Term
First Claim
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1. A compound of formula


  • space="preserve" listing-type="equation">A(B).sub.x (I),
wherein x is an integer from 1 to 4,A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, isoindolinone, isoindoline, dioxazine, phthalocyanine or azo series, which radical A contains x N-atoms linked to B,B is a group of formula ##STR50## and, if x=2, 3 or 4, can also be one, two or three hydrogen atom(s), and wherein Q is a group of formula ##STR51## wherein R1 and R2 are each independently of the other hydrogen, C1 -C24 alkyl;

C1 -C24 alkyl, C3 -C24 alkenyl, C3 -C24 alkynyl, C4 -C12 cycloalkyl, C4 -C12 cycloalkenyl, each of which is interrupted by O, S or N(R9)2, phenyl or biphenyl, each of which is unsubstituted or substituted by C1 -C6 alkyl, C1 -C6 alkoxy, halogen, cyano or nitro, R3, R4 and R5 are each independently of one another hydrogen, C1 -C24 alkyl or C3 -C24 alkenyl,R6 is hydrogen, C1 -C24 alkyl, C3 -C24 alkenyl or a group of formula ##STR52## R8 and R10 are C1 -C6 alkyl, R11 is hydrogen or C1 -C6 alkyl, and R12 is hydrogen, C1 -C6 alkyl, unsubstituted or C1 -C6 alkyl-substituted phenyl,with the proviso that, when A is the radical of a chromophore of a monoazo series, and Q is ##STR53## in which R1, R2, R3 and R4 are each hydrogen, the azo group of the monoazo dye is not substituted by 2'"'"'-hydroxy-5'"'"'-methylphenyl.

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