Formulations including nanoparticles

• US 9,951,273 B2
• Filed: 04/04/2016
• Issued: 04/24/2018
• Est. Priority Date: 09/09/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Nick, Robert J.
• Primary Examiner(s): Cain, Edward J
• Application Number:
  US15/089,764
• Publication Number:
  US 20160355730A1
• Time in Patent Office: 750 Days
• Field of Search: 523210
• CPC Class Codes: B01J 13/18 In situ polymerisation with all reactants being present in the same phase
• CPC Class Codes: B82Y 20/00 Nanooptics, e.g. quantum optics or photonic crystals
• CPC Class Codes: C08F 220/1812 C12-(meth)acrylate, e.g. lauryl (meth)acrylate
• CPC Class Codes: C08K 13/02 Organic and inorganic ingredients
• CPC Class Codes: C08K 2201/001 Conductive additives
• CPC Class Codes: C08K 2201/011 Nanostructured additives
• CPC Class Codes: C08K 5/3435 Piperidines
• CPC Class Codes: C08K 5/3492 Triazines
• CPC Class Codes: C08K 9/10 Encapsulated ingredients
• CPC Class Codes: C08L 33/00 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
• CPC Class Codes: C09D 5/22 Luminous paints luminescent compositions C09K11/00
• CPC Class Codes: C09D 5/24 Electrically-conducting paints conductive materials H01B1/00
• CPC Class Codes: C09D 7/48 Stabilisers against degradation by oxygen, light or heat
• CPC Class Codes: C09D 7/62 modified by treatment with other compounds
• CPC Class Codes: C09K 11/02 Use of particular materials as binders, particle coatings or suspension media therefor
• CPC Class Codes: C09K 11/025 non-luminescent particle coatings or suspension media
• CPC Class Codes: C09K 11/703 with zinc or cadmium
• CPC Class Codes: Y10S 977/83 Inorganic core or cluster coated with organic or biological shell
• CPC Class Codes: Y10S 977/834 Optical properties of nanomaterial, e.g. specified transparency, opacity, or index of refraction

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.

Claims

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.