Invention Grant
- Patent Title: Hologram recording material, process for producing the same and hologram recording medium
- Patent Title (中): 全息记录材料,其制造方法和全息记录介质
-
Application No.: US12021686Application Date: 2008-01-29
-
Publication No.: US07939221B2Publication Date: 2011-05-10
- Inventor: Atsuko Kosuda , Naoki Hayashida , Jiro Yoshinari
- Applicant: Atsuko Kosuda , Naoki Hayashida , Jiro Yoshinari
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-031095 20070209
- Main IPC: G03H1/02
- IPC: G03H1/02 ; G03C1/735

Abstract:
The present invention provides a hologram recording material which is suitable for volume hologram record and attains high refractive index change, flexibility, high sensitivity, low scattering, environment resistance, durability, low shrinkage and high multiplicity in holographic memory record using not only a green laser but also a blue laser; a process for producing the same; and a hologram recording medium having the hologram recording material. A hologram recording material comprising: a metal oxide containing at least Si and Zr as metals wherein a β-dicarbonyl compound is coordinated to Zr; and a photopolymerizable compound, wherein a mole ratio of the β-dicarbonyl compound to the Zr atom (β-dicarbonyl compound/Zr ratio) is 2/1 or more and 3/1 or less, and a mole ratio of the Si atom to the Zr atom (Si/Zr ratio) is more than 1/1 and 1.15/1 or less in the metal oxide. A hologram recording medium (11) comprising the hologram recording material layer (21).
Public/Granted literature
- US20080193857A1 HOLOGRAM RECORDING MATERIAL, PROCESS FOR PRODUCING THE SAME AND HOLOGRAM RECORDING MEDIUM Public/Granted day:2008-08-14
Information query