Imaging media and materials used therein
AssigneeHewlett-Packard Development Company, L.P.
InventorsVladek P Kasperchik, Makarand P. Gore, Marshall Field, Jayprakash Bhatt
Life of this patent
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Abstract
A coating includes an antenna uniformly distributed in both a matrix and a leuco-dye phase of the coating. A method for preparing an imaging material includes providing a powder having an activator and an antenna, dissolving the activator/antenna powder to form an activator/matrix pre-polymer solution, providing a leuco-dye alloy, and dispersing the leuco-dye alloy into the activator/matrix pre-polymer solution to form a radiation-curable paste. An image-recording medium includes a matrix having an antenna and an activator, and an alloy dispersed in the matrix as an independent phase. The alloy includes an antenna, a leuco-dye, and an accelerator.
Claims22
An imaging composition comprising:
- a matrix having a first antenna and an activator;
- and
- an alloy dispersed in said matrix as an independent phase, said alloy having a second antenna and further having a leuco-dye and an accelerator uniformly distributed in the alloy,
- wherein each of the first antenna and the second antenna is independently selected from at
- least one compound selected from the group consisting of quinone, a metal complex, azo, croconium, a squarilium dye, a hexafunctional polyester oligomer, and a compound represented by one of the following formulas:
- where M1 is a transition metal, R1, R2, R3, and R4 are alkyl groups or aryl
- groups with or without halo substituents, and A1, A2, A3, and A4 are S, NH, or Se;
- and
- where M2 is Ni or Cu and R5 and R6 are aryl groups or alkyl groups with or without halo substituents.
A method for preparing an imaging material, the method comprising:
- providing a powder having an activator and an antenna, wherein the antenna comprises at least one compound selected from the group consisting of quinone, a metal complex, azo, croconium, a squarilium dye, a hexafunctional polyester oligomer, and a compound represented by one of the following formulas:
- where M1 is a transition metal, R1, R2, R3, and R4 are alkyl groups or aryl groups with or without halo substituents, and A1, A2, A3, and A4 are S, NH, or Se;
- and
- where M2 is Ni or Cu and R5 and R6 are aryl groups or alkyl groups with or without halo substituents;
- dissolving the activator/antenna powder to form an activator/matrix pre-polymer solution;
- providing a leuco-dye alloy;
- and
- dispersing the leuco-dye alloy into the activator/matrix pre-polymer solution to form a radiation-curable paste.
An image-recording medium comprising:
- a substrate;
- a matrix on the substrate, the matrix having a first antenna and an activator;
- and
- an alloy dispersed in the matrix as an independent phase, the alloy having a second antenna and further having a leuco-dye and an accelerator distributed in the alloy,
- wherein each of the first antenna and the second antenna is independently selected from at
- least one compound selected from the group consisting of quinone, a metal complex, azo, croconium, a squarilium dye, a hexafunctional polyester oligomer, and a compound represented by one of the following formulas:
- where M1 is a transition metal, R1, R2, R3, and R4 are alkyl groups or aryl groups with or without halo substituents, and A1, A2, A3, and A4 are S, NH, or Se;
- and
- where M2 is Ni or Cu and R5 and R6 are aryl groups or alkyl groups with or without halo substituents.
Dependencies are inferred from the claim text.