Hybrid epoxy-acrylic with zirconium oxide nanocomposite for curable coatings
US9638834B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 25, 2013 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jul 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A composition includes: a continuous liquid phase including an acrylic monomer and an epoxy monomer; and a dispersed nanoparticulate including ZrO2 modified with an acrylic silane; and wherein the composition is transparent to visible light when coated on a lens. In addition, a method including the steps of: mixing an acrylic silane and a methanol-based ZrO2 sol to create a methanol-based silane-modified ZrO2 sol; then mixing at least an acrylic monomer, an epoxy monomer, and the methanol-based silane-modified ZrO2 sol to obtain the composition. The composition can be adapted for coating and curing onto another substrate, such as an ophthalmic lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.