摘要 |
A styrylcoumarin compound jointing a styryl group by - (C=C)n - portion and having -NR1R2 group, wherein n is an integer of 2 to 4, and each R is a proton or an alkyl group having 1 to 10 carbon atoms. A photopolymerizable composition comprises the styrylcoumarin compound as a photosensitizer, a polymerization initiator and a polymerizable compound. A photocrosslinking composition comprises the styrylcoumarin compound as a photosensitizer, a crosslinking agent and a polymerizable compound. A volume phase hologram recording medium which comprises the styrylcoumarin compound, a crosslinking agent and a polymer comprising a carbazole. <IMAGE> |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YOSHINAGA, YOKO, C/O CANON KABUSHIKI KAISHA;MATSUMARA, SUSUMU, C/O CANON KABUSHIKI KAISHA;TANIGUCHI, NAOSATO, C/O CANON KABUSHIKI KAISHA;KOBAYASHI, SHIN, C/O CANON KABUSHIKI KAISHA;SUDO, TOSHIYUKI, C/O CANON KABUSHIKI KAISHA;MORISHIMA, HIDEKI, C/O CANON KABUSHIKI KAISHA;KANEKO, TADASHI, C/O CANON KABUSHIKI KAISHA |