Hybrid colored metallic pigment

Patent metadata

Field	Value
Publication number	US-10844227-B2
Application number	US-201715849558-A
Country	US
Kind code	B2
Filing date	Dec 20, 2017
Priority date	Dec 21, 2016
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A thin film structure including a reflector layer; and a hybrid layer including an organic colored material and at least one of an organic filler and an inorganic filler; wherein a concentration of the at least one of an organic filler or an inorganic filler is in a range of from about 3 wt. % to about 30 wt. %. A method of making a thin film structure is also disclosed.

First claim

We claim:

1. A thin film structure, comprising:
a first hybrid layer comprising an organic pigment and at least one filler chosen from an organic filler and an inorganic filler, wherein the at least one filler is present in the first hybrid layer in an amount ranging from about 3 wt. % to about 30 wt. % relative to the total weight of the first hybrid layer;
a reflector layer; and
a second hybrid layer comprising an organic pigment and at least one filler chosen from an organic filler and an inorganic filler;
wherein the at least one filler is present in the second hybrid layer in an amount ranging from about 3 wt. % to about 30 wt. % relative to the total weight of the second hybrid layer, wherein the first and the second hybrid layers do not encapsulate the reflector layer.

2. The thin film structure of claim 1 , wherein the reflector layer is metallic.

3. The thin film structure of claim 2 , wherein the metallic reflector layer comprises at least one of a metal and a metal alloy.

4. The thin film structure of claim 3 , wherein the metal is at least one of aluminum, zinc, copper, silver, gold, platinum, palladium, nickel, cobalt, niobium, chromium, and tin.

5. The thin film structure of claim 3 , wherein the metal alloy is at least one of brass, steel, stainless steel, and bronze.

6. The thin film structure of claim 1 , wherein the reflector layer is in a form of a platelet.

7. The thin film structure of claim 1 , wherein the thin film structure is a pigment.

8. The thin film structure of claim 1 , wherein the thin film structure has an average particle size in a range of from about 5 microns to about 100 microns.

9. The thin film structure of claim 1 , wherein a thickness of the thin film structure is less than about 10 microns.

10. The thin film structure of claim 1 , wherein a thickness of each of the first hybrid layer and the second hybrid layer is in a range of from about 10 nm to about 5000 nm.

11. A method of making a thin film structure, comprising:
depositing a first hybrid layer by a deposition technique;
depositing a reflector layer on the first hybrid layer; and
depositing a second hybrid layer on the reflector layer to form a thin film structure;
wherein the first hybrid layer comprises an organic pigment and at least one filler chosen from an organic filler and an inorganic filler, wherein the at least one filler is present in the first hybrid layer in an amount ranging from about 3 wt. % to about 30 wt. % relative to the total weight of the first hybrid layer; and
wherein the second hybrid layer comprises an organic pigment and at least one filler chosen from an organic filler and an inorganic filler, wherein the at least one filler is present in the second hybrid layer in an amount ranging from about 3 wt. % to about 30 wt. % relative to the total weight of the second hybrid layer, wherein the first and the second hybrid layers do not encapsulate the reflector layer.

12. The method of claim 11 , further comprising providing a substrate with a release layer; and further comprising immersing the thin film structure in a solvent to dissolve the release layer.

13. The method of claim 12 , further comprising, after immersing, sizing the thin film structure.

14. The method of claim 13 , wherein the sized thin film structure has an average particle size in the range of from about 5 to about 100 microns.

15. The method of claim 11 , wherein a thickness of the thin film structure is less than about 10 microns.

16. The method of claim 11 , wherein the thin film structure exhibits improved adhesion between the reflector layer and each of the first and second hybrid layers.

17. The method of claim 11 , wherein at least one of organic filler and inorganic filler comprises at least one of magnesium fluoride, silicon monoxide, silicon dioxide, aluminum oxide, aluminum fluoride, titanium dioxide, aluminum nitride, boron nitride, boron carbide, tungsten oxide, cerium fluoride, lanthanum fluoride, neodymium fluoride, samarium fluoride, barium fluoride, calcium fluoride, lithium fluoride, tungsten carbide, titanium carbide, titanium nitride, silicon nitride, zinc sulfide, glass flakes, diamond-like carbon, and a combination thereof.

18. The method of claim 11 , wherein the organic colored material comprises at least one of perylene, perinone, quinacridone, quinacridonequinone, anthrapyrimidine anthraquinone, anthanthrone, benzimidazolone, disazo condensation, azo, azomethine, quinophthalone, indanthrone, phthalocyanine, triarylcarbonium, dioxazine, aminoanthraquinone, isoindoline diketopyrrolopyrrole, thioindigo, thiazineindigo, isoindoline, isoindolinone, pyranthrone, isoviolanthrone pigments, and a mixture thereof.

19. The method of claim 11 , wherein the first hybrid layer has the same composition as the second hybrid layer.

20. The method of claim 11 , wherein the first hybrid layer has a different composition as the second hybrid layer.

Assignees

• Viavi Solutions Inc

Inventors

• Raksha Vladimir
• Garcia Joe
• Kohlmann Paul
• Argoitia Alberto
• Thoraval Carole
• Oberti Robert

Classifications

• C09C1/0015 Primary

  Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings · CPC title

• C09C1/0048

  comprising at least one optically active layer with at least one organic material layer, e.g. liquid crystal polymers · CPC title

• B32B33/00

  Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class · CPC title

• C09C1/0084

  containing titanium dioxide · CPC title

• C09C2220/20

  PVD, CVD methods or coating in a gas-phase using a fluidized bed · CPC title