Invention Grant
- Patent Title: Volume phase hologram recording material and optical information recording medium
- Patent Title (中): 卷相全息记录材料和光学信息记录介质
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Application No.: US12525806Application Date: 2008-02-04
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Publication No.: US08298726B2Publication Date: 2012-10-30
- Inventor: Takehiro Shimizu , Kazuyoshi Masaki , Hidetaka Fujimatsu
- Applicant: Takehiro Shimizu , Kazuyoshi Masaki , Hidetaka Fujimatsu
- Applicant Address: JP Tokyo
- Assignee: Nippon Steel Chemical Co., Ltd.
- Current Assignee: Nippon Steel Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cheng Law Group, PLLC
- Priority: JP2007-025448 20070205; JP2007-301831 20071121
- International Application: PCT/JP2008/051776 WO 20080204
- International Announcement: WO2008/096712 WO 20080814
- Main IPC: G03H1/02
- IPC: G03H1/02

Abstract:
Disclosed is a volume phase hologram recording material of high sensitivity, high contrast, and excellent record retention properties and also disclosed is a volume phase hologram recording medium using the said material. The volume phase hologram recording material mainly contains a three-dimensional crosslinked polymer matrix, a radically polymerizable monomer, and a photoradical polymerization initiator. The three-dimensional crosslinked polymer matrix is formed from a matrix-forming compound having two photoradically polymerizable unsaturated groups and two non-photoradically polymerizable hydroxyl groups represented by the following general formula (1) and another matrix-forming compound having no photoradically polymerizable group.
Public/Granted literature
- US20090310196A1 VOLUME PHASE HOLOGRAM RECORDING MATERIAL AND OPTICAL INFORMATION RECORDING MEDIUM Public/Granted day:2009-12-17
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