Nanoparticle filled barrier adhesive compositions
US11034865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2017 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Mar 8, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a barrier adhesive composition comprises polyisobutylene resin, organically modified nanoclay (e.g. montmorillonite or bentonite) and sorbent nanoparticles (e.g. CaO which acts as a desiccant and/or getter). In a preferred embodiment, the barrier adhesive composition is disposed on a gas-barrier film to form an adhesive barrier film. The adhesive barrier film can then be used for protection from oxygen and moisture in OLED displays and solid state lightings, solar cells, electrophoretic and electrochromic displays thin film batteries, quantum dot devices, sensors (e.g. touch sensor) and other organic electronic devices. The adhesive barrier film is especially well-suited for applications that require oxygen and moisture protection as well flexibility and good optical transmittance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.