IP Library › Granted Patent US 7,708,974
Granted Patent B2
US 7,708,974 · App. 11/125,316 · Granted May 4, 2010

Tungsten comprising nanomaterials and related nanotechnology

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Quick Facts
Patent No.
US 7,708,974
App. No.
11/125,316
Granted
May 4, 2010
Kind
B2
Abstract

Nanoparticles comprising tungsten, methods of manufacturing nanoparticles comprising tungsten, and applications of nanoparticles comprising tungsten, such as electronics, optical devices, photonics, reagents for fine chemical synthesis, pigments, and catalysts are provided.

Claims (15)

1. A nanomaterial composition of matter comprising

(a) non-stoichiometric nanoparticles of tungsten oxide, and

(b) at least one metal other than tungsten, wherein the composition comprises a tungsten bronze.

2. The nanomaterial composition of matter of claim 1 , wherein the at least one metal other than tungsten is sodium.

3. The nanomaterial composition of matter of claim 1 , wherein the at least one metal other than tungsten is selected from barium, zinc, calcium, tin, and combinations thereof.

4. The nanomaterial composition of matter of claim 1 , further comprising oxygen.

5. The nanomaterial composition of matter of claim 1 , wherein the nanomaterial composition comprises non-agglomerated nanoparticles.

6. The nanomaterial composition of matter of claim 1 , wherein the nanomaterial composition comprises nanoparticles having non-functionalized surfaces.

7. The nanomaterial composition of matter of claim 1 , wherein the nanomaterial composition comprises nanoparticles having functionalized or modified surfaces.

8. The nanomaterial composition of matter of claim 7 , wherein the functionalized surfaces comprise fatty acids, propionic acid, stearic acid, oils and combinations thereof.

9. The nanomaterial composition of matter of claim 7 , wherein the functionalized surfaces comprise organometallics comprising silicon or titanium.

10. The nanomaterial composition of matter of claim 1 , wherein the nanomaterial composition comprises particles having a mean particle size of less than 100 nanometers.

11. A nanomaterial composition of matter comprising

(a) non-stoichiometric nanoparticles of tungsten oxide, and

(b) at least one metal other than tungsten, wherein the at least one metal other than tungsten is sodium.

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 Aug 15, 2005
From: YADAV, TAPESH
To: NANOPRODUCTS CORPORATION
Reel/Frame 016637/0636 →