公开(公告)号：EP1377977A1

公开(公告)日：2004-01-07

申请号：EP02732506.7

申请日：2002-03-20

申请人： Bayer Chemicals AG ,  SONY CORPORATION

发明人： BERNETH, Horst ,  BRUDER, Friedrich-Karl ,  HAESE, Wilfried ,  HAGEN, Rainer ,  HASSENRÜCK, Karin ,  KOSTROMINE, Serguei ,  LANDENBERGER, Peter ,  OSER, Rafael ,  SOMMERMANN, Thomas ,  STAWITZ, Josef-Walter ,  BIERINGER, Thomas ,  SABI, Yuichi ,  IWAMURA, Takashi ,  OYAMADA, Mitsuaki ,  WATANABE, Hidetoshi ,  TAMADA, Skakuya ,  YAMAMOTO, Masanobu

IPC分类号： G11B7/24

CPC分类号： C07D221/04 ,  C07D217/14 ,  C07D311/12 ,  C07D311/80 ,  C07D405/04 ,  C07D455/04 ,  C07D491/04 ,  C07F15/065 ,  C09B23/0091 ,  C09B23/04 ,  C09B23/105 ,  C09B29/0029 ,  C09B29/0074 ,  C09B29/36 ,  C09B44/10 ,  C09B47/045 ,  C09B47/085 ,  C09B47/26 ,  C09B67/0097 ,  C09B69/02 ,  C09K9/02 ,  G11B7/00455 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/24 ,  G11B7/245 ,  G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/249 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2578 ,  G11B7/259 ,  G11B7/26

摘要： An optical recording medium having at least a recording layer 11 and a light transmitting layer 13 formed on a substrate 10, in which the recording layer 11 is made of an organic material for absorbing an incident light of wavelength of 360 nm to 460 nm, and inducing physical change or chemical change to vary the refractive index, the light transmitting layer 13 is 10 νm to 177 νm in thickness, the relation between absorption coefficient 'k' and pyrolysis temperature Tdec of organic material is 950 (°C) 0.0.