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US 10,329,479 B2Granted
Surface-modified nanoparticles
AssigneeNanoco Technologies Ltd.
InventorsCong-Duan Vo, Hao Pang, Imad Naasani
Life of this patent
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Abstract
The surfaces of nanoparticles (QDs) are modified with amphiphilic macromolecules, for example, amphiphilic copolymers. The surface modification renders the QDs more compatible with oxygen-excluding matrices, such as epoxy resin, polyurethane resin, polyester resins or any hydrophilic inorganic/organic hybrid resin such as (meth)acrylate-functionalized polyhedral oligomeric silsesquioxane (POSS).
Claims21
A display comprising:
- a light-emitting element;
- and
- a film in optical communication with the light emitting element, the film comprising:
- a matrix material;
- and
- a population of surface-modified nanoparticles dispersed in the matrix material, each surface-modified nanoparticle comprising:
- a nanoparticle having a core and an external surface;
- and
- amphiphilic block copolymers on the external surface of the nanoparticle,
- wherein the block copolymers are any one of a polyalkylene glycol-poly(alkylene sulfide) block copolymer and a block copolymer consisting of a first block that is a reversible addition fragmentation chain transfer agent (RAFT-CTA) and a second block that is a polyalkylene glycol.
7 more elements
Dependencies are inferred from the claim text.