Phthalocyanines and naphthalocyanines with near-IR absorptions for inkjet inks
AssigneeHewlett-Packard Development Company, L.P.
InventorsSivapackia Ganapathiappan, Jayprakash Bhatt
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AssigneeHewlett-Packard Development Company, L.P.
InventorsSivapackia Ganapathiappan, Jayprakash Bhatt
Estimating the term…
A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprises at least one complexed unit. Each unit comprises a phthalocyanine or a naphthalocyanine moiety and, optionally, a metal atom complexed thereto and, if present, having a valency of from 1 to 5, with two valencies complexed to the phthalocyanine ring or the naphthalocyanine ring. Each unit has two linker moieties on opposite sides or adjacent sides of the unit, wherein water-soluble groups are present on at least one of the linkers, on the metal atom, and optionally on the phthalocyanine or naphthalocyanine moiety.
A water-soluble phthalocyanine dye or naphthalocyanine dye with near-infrared absorption comprising at least one complexed unit, each unit comprising a phthalocyanine or a naphthalocyanine moiety and, optionally, a metal atom complexed thereto, each metal atom, if present, having a valency of from 1 to 5, with two valencies complexed to the phthalocyanine ring or the naphthalocyanine ring, each unit having two linker moieties on opposite sides or adjacent sides of the unit, wherein water-soluble groups are present in at least one of the linkers between the phthalocyanine or naphthalocyanine moiety and optionally on the phthalocyanine or naphthalocyanine moiety, wherein at least one linker moiety is bonded to a second phthalocyanine or naphthalocyanine moiety.
Dependencies are inferred from the claim text.