Metal phthalocyanine colorants for phase change inks
AssigneeXerox Corporation
InventorsClifford R. King, Donald R. Titterington, Jeffrey H. Banning
Life of this patent
Estimating the term…
Abstract
Phase change inks containing at least one colorant that comprises at least one metal phthalocyanine tetraamide chromogen, at least one metal phthalocyanine tetraester chromogen, or mixtures thereof.
Claims36
A phase change ink composition comprising the combination of at least one phase change ink carrier component and a compatible phase change ink colorant that comprises at least one metal phthalocyanine tetraamide chromogen, at least one metal phthalocyanine tetraester chromogen, or mixtures thereof.
A metal phthalocyanine tetraester dye of a Formula (I):
- wherein M is a metal selected from the group consisting of copper, nickel, cobalt, zinc, chromium, aluminum and iron;
- and wherein R1, R2, R3 and R4 are individually selected from the group consisting of a linear or a branched alkyl having 1 to about 60 carbon atoms;
- a cycloalkyl having 1 to about 60 carbon atoms;
- an aryl;
- an alkyl/aryl;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a homopolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a random-copolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a block-copolymer form;
- and mixtures thereof.
A metal phthalocyanine tetraamide dye of a Formula (II):
- wherein M is a metal selected from the group consisting of copper, nickel, cobalt, zinc, chromium, aluminum and iron and wherein R1, R2, R3, R4, R5, R6, R7 and R8 are individually selected from the group consisting of hydrogen;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a homopolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a random-copolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a block-copolymer form;
- and mixtures thereof, and where R1 and R2 are not both hydrogen, R3 and R4 are not both hydrogen, R5 and R6 are not both hydrogen, and R7 and R8 are not both hydrogen.
A metal phthalocyanine dye prepared by the reaction of trimellitic anhydride ester, amide or combinations thereof with phthalic anhydride to yield a colorant mixture containing a distribution of mono-, di-, tri- and tetra-substituted chromophore;
- wherein the trimellitic anhydride ester is selected from the group consisting of a linear or a branched alkyl having 1 to about 60 carbon atoms;
- a cycloalkyl having 1 to about 60 carbon atoms;
- an aryl, an alkyl/aryl;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a homopolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a random-copolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a block-copolymer form;
- and mixtures thereof.
A metal phthalocyanine dye prepared by the reaction of trimellitic anhydride with phthalic anhydride to form mono-, di-, tri-, and tetra-carboxylic acid substituted phthalocyanine;
- wherein the carboxylic acid substituted phthalocyanine is converted to a mono-, di-, tri-, or tetra-ester, amide and/or amine salt by reaction with an alcohol, an amine or combinations thereof;
- wherein the alcohol is selected from the group consisting of an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a homopolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a random-copolymer;
- an alkyleneoxy moiety or an aryleneoxy moiety ranging from about 1 to about 250 repeating units of a block-copolymer form;
- and mixtures thereof.
Dependencies are inferred from the claim text.