To provide a photocurable transfer sheet which is advantageous in manufacturing of an optical information recording medium having a small thickness and a high capacity such as a DVD, provided that, after curing of the sheet, the transfer sheet shows an excellent adhesion to a reflective layer formed of a silver alloy etc., enables easy separation of a stamper and, accordingly, is capable of providing a concave/convex signal face such as a pit with an accurate shape.
The photocurable transfer sheet comprises a photocurable transfer layer formed of a pressure-deformable photocurable composition. The photocurable composition comprises a polymer and a reactive diluent containing a photopolymerizable functional group, and the reactive diluent comprises a compound containing at least one hydroxyl group and at least two groups of at least one kind chosen from an acryloyl group and a methacryloyl group. A method for manufacturing an optical information recording medium using the photocurable transfer sheet and the optical information recording medium are also provided.
INAMIYA TAKAHITO
KITANO HIDEKI
MURAYAMA KENJI
| JPH05163408A | 1993-06-29 | |||
| JP2003321616A | 2003-11-14 | |||
| JP2002025116A | 2002-01-25 | |||
| JP2002097224A | 2002-04-02 | |||
| JP2003272244A | 2003-09-26 |