Polymer composites and films comprising reactive additives having thiol groups for improved quantum dot dispersion and barrier properties
US10508232B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2018 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Jun 23, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/952
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides polymer composites, such as films, having dispersed therein quantum dots, wherein the polymer comprises (b) polymerized units of a first compound comprising from one to 6 thiol groups, the compound having a molecular weight from 300 to 20,000 and having at least one continuous acyclic hydrocarbyl chain of at least three carbon atoms, or, preferably, at least 5 carbon atoms; and (c) polymerized units of a second compound having a molecular weight from 100 to 750 and comprising at least two polymerizable vinyl groups as part of a (meth)acrylate ester group or attached directly to an aromatic ring and, wherein the molecular weight of the first compound minus the molecular weight of the second compound is at least 100. The polymer composites provide more stably dispersed and durable quantum dot compositions for use in, for example, display devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.