IP Library Granted Patent US 7,387,673
Granted Patent B2
US 7,387,673 · App. 10/441,501 · Granted Jun 17, 2008

Color pigment nanotechnology

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Quick Facts
Patent No.
US 7,387,673
App. No.
10/441,501
Granted
Jun 17, 2008
Kind
B2
Abstract

A pigment prepared using nanofillers with modified properties because of the powder size being below 100 nanometers. Blue, yellow and brown pigments are illustrated. Nanoscale coated, un-coated, nanorods type fillers are included. The pigment nanopowders taught comprise one or more elements from the group actinium, antimony, aluminum, arsenic, barium, beryllium, bismuth, cadmium, calcium, cerium, cesium, cobalt, copper, dysprosium, erbium, europium, gadolinium, gallium, gold, hafnium, hydrogen, indium, iridium, iron, lanthanum, lithium, magnesium, manganese, mendelevium, mercury, molybdenum, neodymium, neptunium, nickel, niobium, nitrogen, oxygen, osmium, palladium, platinum, potassium, praseodymium, promethium, protactinium, rhenium, rubidium, scandium, silver, sodium, strontium, sulfur, selenium, tantalum, terbium, thallium, thorium, tin, titanium, tungsten, vanadium, ytterbium, yttrium, zinc, and zirconium.

Claims (27)

1. A pigment comprising polymetallic nanofillers, wherein the pigment is brown and wherein the polymetallic nanofillers are produced using a method comprising:

providing a solution for each of one or more desired constituent elements of a desired polymetallic nanofiller;

mixing the solutions containing each of the constituent elements of the desired polymetallic nanofiller to form a mix of solutions;

preparing polymetallic nanofillers from the mix of solutions in a thermal plasma process;

mixing the polymetallic nanofillers in a liquid matrix;

coating the nanofillers with a polymer or a monomer; and

wherein the polymetallic nanofillers have a domain size less than 100 nanometers.

2. The pigment of claim 1 wherein the liquid matrix comprises of an organic fluid.

3. A layer formed on a supporting structure wherein the layer is prepared from a composition comprising the pigment of claim 1 .

4. The pigment of claim 1 wherein the polymetallic nanofillers comprise oxide.

5. The pigment of claim 1 wherein the polymetallic nanofillers comprise nanorods.

6. The pigment of claim 1 wherein the polymetallic nanofillers comprise nanowhiskers.

7. The pigment of claim 1 wherein the nanofillers comprise nitride.

8. A pigment comprising polymetallic nanofillers, wherein the polymetallic nanofillers are produced using a method comprising:

providing a solution for each of one or more desired constituent elements of a desired polymetallic nanofiller;

mixing the solutions containing each of the constituent elements of the desired polymetallic nanofiller to form a mix of solutions;

preparing polymetallic nanofillers from the mix of solutions in a thermal plasma process;

mixing the polymetallic nanofillers in a liquid matrix;

coating the nanofillers with a polymer or a monomer; and

wherein the polymetallic nanofillers have a domain size less than 100 nanometers and wherein the nanofillers comprise nitride.

9. The pigment of claim 8 wherein the liquid matrix comprises of an organic fluid.

10. A layer formed on a supporting structure wherein the layer is prepared from a composition comprising the pigment of claim 8 .

11. The pigment of claim 8 wherein the polymetallic nanofillers comprise oxide.

12. The pigment of claim 8 wherein the polymetallic nanofillers comprise nanorods.

13. The pigment of claim 8 wherein the polymetallic nanofillers comprise nanowhiskers.

14. The pigment of claim 8 wherein the pigment is yellow.

15. The pigment of claim 8 wherein the pigment is blue.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2008
From: NANOPRODUCTS CORPORATION
To: PPG INDUSTRIES OHIO, INC.
Reel/Frame 020540/0506 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2007
From: YADAV, TAPESH; KOSTELECKY, CLAYTON; FRANKE, EVAN; MIREMADI, BIJAN; AU, MING
To: NANOPRODUCTS CORPORATION
Reel/Frame 019429/0624 →