Formulations including nanoparticles

Patent metadata

Field	Value
Publication number	US-9951273-B2
Application number	US-201615089764-A
Country	US
Kind code	B2
Filing date	Apr 4, 2016
Priority date	Sep 9, 2009
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

The present invention relates to a formulation comprising a medium, one or more stabilizers, and one or more particles comprising nanoparticles included within a host material. In certain embodiments, a stabilizer comprises a HALS stabilizer. In certain embodiments, a stabilizer comprises a UVA stabilizer. In certain embodiments, the formulation includes a HALS stabilizer and a UVA stabilizer. In certain embodiments, nanoparticles have light-emissive properties. Other embodiments relate to a powder obtainable from a formulation of the invention, a composition including a powder of the invention, a coating comprising a formulation of the invention, and products and applications including a particle of the invention. In preferred embodiments, a nanoparticle comprises a semiconductor nanocrystal. In certain embodiments, a host material comprises a polymer. In certain embodiments, a host material comprises an inorganic material. A raw batch formulation and particle obtainable therefrom is also disclosed.

First claim

The invention claimed is:

1. A coating comprising a formulation comprising a medium, two or more stabilizers, and one or more particles comprising nanoparticles included within a host material, wherein at least a portion of the nanoparticles include a core comprising a first semiconductor material and a shell disposed over at least a portion of an outer surface of the core, the shell comprising a second semiconductor material, and wherein the two or more stabilizers include a HALS stabilizer and a UVA stabilizer.

2. A coating in accordance with claim 1 wherein the coating further comprises monomers, polymers, resins, and/or other film forming compositions.

3. A coating in accordance with claim 1 wherein the coating further includes one or more additives.

4. A coating in accordance with claim 3 wherein the one or more additives comprise a colorant, a scatterer, a binder, a surfactant, and/or a mixture of one or more thereof.

5. A coating comprising a film prepared from a formulation comprising a medium, two or more stabilizers, and one or more particles comprising nanoparticles included within a host material, wherein at least a portion of the nanoparticles include a core comprising a first semiconductor material and a shell disposed over at least a portion of an outer surface of the core, the shell comprising a second semiconductor material, and wherein the two or more stabilizers include a HALS stabilizer and a UVA stabilizer.

6. A film prepared from a formulation comprising a medium, two or more stabilizers, and one or more particles comprising nanoparticles included within a host material, wherein at least a portion of the nanoparticles include a core comprising a first semiconductor material and a shell disposed over at least a portion of an outer surface of the core, the shell comprising a second semiconductor material, and wherein the two or more stabilizers include a HALS stabilizer and a UVA stabilizer.

7. A film in accordance with claim 6 wherein the film comprises monomers, polymers, resins, and/or other film forming compositions.

8. A film in accordance with claim 6 wherein the film includes one or more additives.

9. A film in accordance with claim 8 wherein the one or more additives comprise a colorant, a scatterer, a binder, a surfactant, and/or a mixture of one or more thereof.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Nick Robert J

Classifications

• C09D5/22

  Luminous paints {(luminescent compositions C09K11/00)} · CPC title

• Y10S977/83

  Inorganic core or cluster coated with organic or biological shell · CPC title

• C09K11/02

  Use of particular materials as binders, particle coatings or suspension media therefor · CPC title

• Y10S977/834

  Optical properties of nanomaterial, e.g. specified transparency, opacity, or index of refraction · CPC title

• C09K11/025

  non-luminescent particle coatings or suspension media · CPC title