Photo-curable transfer sheet, laminate, optical information recording substrate, process for the preparation thereof, and optical information recording medium
US7799404B2 · kind B2 · utility
1Cited by
14References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2002 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | May 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/256
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photo-curable transfer sheet having a photo-curable layer comprising a photo-curable composition, the photo-curable composition being deformable by application of pressure and containing a reactive polymer having a photopolymerizable functional group. The photo-curable transfer sheet preferably has a light transmittance of not less than 70% in a wavelength rang of 380 to 420 nm. An optical information recording substrate and medium prepared by the sheet. The sheet easily and precisely enables transfer of unevenness of the surface of a stamper by pressing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.