Coating composition, coating film, method of manufacturing coating film, and optical recording medium
US7589130B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 2, 2005 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Aug 2, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/256
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A coating composition containing a solvent and a coating agent having an ionizing radiation-curable compound as a principal component thereof, wherein under the following condition for the concentration a (wt %) of the coating agent in the coating composition0<a≦60,the concentration a of the coating agent and the surface tension b (dyne/cm) of the coating composition satisfy the following relationshipb≦(−a/15)+26,is applied onto a surface of a protective film 11 and curing is carried out to form a hard coating layer 12. Even in the case that projections or foreign bodies are present on the surface of the protective film 11, the hard coating layer 12 can conceal these and hence can have high surface smoothness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.