Pigment flakes
AssigneeHampden Papers, Inc.
InventorMichael E. Archambeault
Life of this patent
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Abstract
Pigment flakes having cores preferably composed of resins, polymers, thermoplastics, and/or thermosets with colorant (pigment and/or dyes) deposited thereon, coating applications thereof, and a method for making pigment flakes which includes providing a core material, compounding the core material, processing the core material into uniform forms such as films, wires, thread with rectangular cross sections and bead strings, providing colorant material, vaporizing the colorant material, exposing a surface of core material to the vaporized colorant material to form a layer of colorant on thereon, and fracturing the resultant colorant layered core material into flakes.
Claims34
A method for making pigment flakes, the method comprising the steps of:
- providing a core material having a uniform form;
- providing a colorant material;
- vaporizing the colorant material;
- exposing a surface of the core material to the vaporized colorant material so as to form a layer of colorant on the exposed surface of the core material;
- and
- fracturing the resultant colorant layered core material into flakes.
A pigment flake comprising:
- a core material having a specific shape with an external surface;
- and
- a layer of colorant material deposited on at least a part of the external surface of the core material, wherein molecules of the colorant material immediately adjacent to molecules of the core material are integrated therein forming a demarcation region where some of both materials is present.
A pigmented coating application having a medium for suspension of pigment flakes comprising:
- pigment flakes suspended in the medium wherein each pigment flake has a fine flake of core material, a shape with an external surface, and a thin layer of colorant material deposited on at least part of said external surface.
Dependencies are inferred from the claim text.