OPTICAL RECORDING MATERIAL

• Main Authors: SAKAMOTO HIROSHI, SAKURAI HIROMI, YAMAMOTO YUJI, ONO MOTOJI, KAIDA YURIKO
• Format: Patent
• Language: English
• Published: 16.12.2004
• Edition: 7
• Subjects: AUXILIARY PROCESSES IN PHOTOGRAPHY; CHEMISTRY; CINEMATOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTROGRAPHY; FREQUENCY-CHANGING; HETEROCYCLIC COMPOUNDS; HOLOGRAPHY; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC CHEMISTRY; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES; PHOTOGRAPHY; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To obtain a diarylethene compound that exhibits excellent compatibility with a liquid crystal compound and has a transition moment perpendicular to the orientation direction of a liquid crystal. SOLUTION: The diarylethene compound is represented by general formula (1) (P is a group represented by formula (a) or formula (b); R1, R3and R5are each an alkyl group which may contain a substituent group or the like; R2and R4are each a hydrogen atom or the like; R6is a monofunctional aromatic cyclic group which may contain a substituent group; R7is a hydrogen atom or the like; X is a hydrogen atom or the like; Y is a single bond or the like; A and B are each an aromatic hydrocarbon six-membered ring or the like; k is an integer of 5-8; m is 1 or 2). COPYRIGHT: (C)2005,JPO&NCIPI