Invention Grant
- Patent Title: Cyanine compound and optical recording material
- Patent Title (中): 花青化合物和光学记录材料
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Application No.: US12295449Application Date: 2007-03-23
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Publication No.: US08206806B2Publication Date: 2012-06-26
- Inventor: Toru Yano , Satoshi Yanagisawa , Yohei Aoyama , Koichi Shigeno
- Applicant: Toru Yano , Satoshi Yanagisawa , Yohei Aoyama , Koichi Shigeno
- Applicant Address: JP Tokyo
- Assignee: Adeka Corporation
- Current Assignee: Adeka Corporation
- Current Assignee Address: JP Tokyo
- Agency: Young & Thompson
- Priority: JP2006-096534 20060331
- International Application: PCT/JP2007/055998 WO 20070323
- International Announcement: WO2007/114073 WO 20071011
- Main IPC: B32B3/02
- IPC: B32B3/02 ; G11B7/24
Abstract:
A cyanine compound is represented by formula (I): A1: benzene or naphthalene ring. A3: 5- or 6-membered ring. R1, R2: hydrogen atom and the like. R7: an alkyl group and the like. R12: a substituent by formula (II) or (II′). R20: a hydrogen atom and the like. Anq-: a q-valent anion. q: 1 or 2; p: a coefficient for neutral charge. In formula (II): bond between L and T is a double, conjugated double, or triple bond. L: carbon atom. T: carbon, oxygen, sulfur, or nitrogen atom. x, y, z: 0 or 1. s: 0-4. R13: hydrogen atom and the like. R14, R15, and R16: hydrogen atom and the like. In formula (II′), the bond between L′ and T′ is a double or conjugated double bond. L′: carbon atom. T′: carbon, oxygen, nitrogen atom. s′: 0-4. Ring containing L′ and T′: 5-membered ring, may contain a heteroatom.
Public/Granted literature
- US20090054652A1 Cyanine Compound and Optical Recording Material Public/Granted day:2009-02-26
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