Pigment dispersions with polymeric dispersants having pending chromophore groups.

Pigment dispersions with polymeric dispersants having pending chromophore groups.

  • CN 101,223,245 A
  • Filed: 06/23/2006
  • Published: 07/16/2008
  • Est. Priority Date: 07/14/2005
  • Status: Active Application
First Claim
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1. pigment dispersion that comprises colored pigment and polymeric dispersant, described polymeric dispersant have at least a by connecting the side group chromophoric group that base links to each other with the polymer backbone covalency of described polymeric dispersant,Wherein said at least a side group chromophoric group is the derivative that is selected from following colored pigment:

  • monoazo pigment, disazo pigment, 2-Naphthol pigment, naphthol AS pigments, the azo pigment color lake, benzimidazolone pigment, disazo condensation pigment, metal complex pigment, isoindolinone pigment, isoindoline pigment, phthalocyanine pigment, quinacridone pigment, diketo pyrrolo-pyrrole pigment(DPP pigment), thioindigo color, anthraquinone pigment, anthrapyrimidine pigment, indanthrone pigment, flavanthrone pigment, pyranthrone pigments, anthanthrene diketone pigment, isoviolanthrone pigment, aluminium pigment color lake, two 

    piperazine pigment, triaryl carbon 

    pigment and Kui phthalein ketone pigment;

    Described at least a side group chromophoric group is for existing with the side group form on the polymer backbone and not being group or the independent chromophoric group that exists with the end group form of polymer backbone in polymer backbone itself;

    The described base that connects is by polymer backbone with all atoms between first atom of the aromatic group that the side group chromophoric group links to each other with polymer backbone are formed;

    The polymerization degree of the polymer backbone of described polymeric dispersant is 5-1000;

    WithThe monomeric unit of 30% described polymer backbone has the side group chromophoric group at the most.

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