Invention Grant
US07682773B2 Cyanine compound, optical recording material using the same and optical recording medium
失效
花青素化合物,使用其的光学记录材料和光学记录介质
- Patent Title: Cyanine compound, optical recording material using the same and optical recording medium
- Patent Title (中): 花青素化合物,使用其的光学记录材料和光学记录介质
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Application No.: US11791487Application Date: 2005-10-13
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Publication No.: US07682773B2Publication Date: 2010-03-23
- Inventor: Mitsuhiro Okada , Toru Yano , Koichi Shigeno
- Applicant: Mitsuhiro Okada , Toru Yano , Koichi Shigeno
- Applicant Address: JP Tokyo
- Assignee: Adeka Corporation
- Current Assignee: Adeka Corporation
- Current Assignee Address: JP Tokyo
- Agency: Young & Thompson
- Priority: JP2004-340485 20041125
- International Application: PCT/JP2005/018852 WO 20051013
- International Announcement: WO2006/057113 WO 20060601
- Main IPC: G11B7/24
- IPC: G11B7/24

Abstract:
The cyanine compound of the present invention is represented by general formula (I) below and suitable as an optical recording material used in a recording layer of optical recording media on which recording and play-back are conducted with laser beam. The cyanine compound of the present invention particularly exhibits appropriate thermal decomposition behavior to attain sensitivity compatible with high-speed recording. (In the formula, each of ring A and ring B represents an optionally substituted benzene or naphthalene ring; each of R1 and R2 independently represents a C1-4 alkyl group or an optionally substituted benzyl group; at least one of R1 and R2 is an optionally substituted benzyl group; X represents O, S, or NY; each of Y, Y1, and Y2 independently represents a hydrogen atom or a C1-30 organic group; Z represents a hydrogen atom, a halogen atom, or a cyano group; Anm- represents an m-valent anion; m represents an integer of 1 or 2; and p represents a coefficient to keep an electric charge neutral.)
Public/Granted literature
- US20080138740A1 Cyanine Compound, Optical Recording Material Using the Same and Optical Recording Medium Public/Granted day:2008-06-12
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