Radiation curable resin composition for lens sheet and lens sheet
US7666920B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 15, 2004 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jan 27, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31576
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a radiation curable resin composition which comprises epoxy (meth)acrylate, a monofunctional (meth)acrylate, a bifunctional (meth)acrylate having a specific structure, and a bifunctional (meth)acrylate obtained from an aliphatic dihydric alcohol having an oxyalkylene structure and (meth)acrylic acid and further contains a thermoplastic resin, thereby causing satisfactory adhesion to plastic substrates, sufficient shape retention, and excellent shape recovery properties, and satisfaction in moldability including casting efficiency and shape reproducibility, as well as a high refractive index and appropriateness for use as a lens sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.