申请人:Fuji Photo Film Co., Ltd.
公开号:US05276163A1
公开(公告)日:1994-01-04
The information recording medium of the invention comprises a substrate and a recording layer for recording information by a laser beam, and the recording layer contains a cyanine dye having the following formula (I): ##STR1## wherein each of A.sup.1 and A.sup.10 is an atom group for completing an aromatic ring which may have one or more substituents; L.sup.1 is a methine group which may have one or more substituents or a trivalent connecting group of conjugated 3, 5 or 7 methines which may have one or more substituents; each of R.sup.11, R.sup.12, R.sup.13 and R.sup.14 is a hydrogen atom, or an alkyl, phenyl, acyl, alkoxy or 5- or 6-membered heterocyclic group which may have one or more substituents; each of R.sup.15 and R.sup.16 is an alkyl group which may have one or more substituents and one of said substituents may have an anionic moiety; X.sub.a.sup.p-- is an anion; p is 1, 2 or 3; m is 1 or 0; and m is 0 when R.sup.15 or R.sup.16 has a substituent having an anionic moiety.
该发明的信息记录介质包括基板和用激光束记录信息的记录层,所述记录层包含具有以下式(I)的靛蓝染料:##STR1##其中,A.sup.1和A.sup.10中的每一个是一个原子团,用于完成可能具有一个或多个取代基的芳香环;L.sup.1是一个甲基基团,它可能具有一个或多个取代基,或者是共轭的3、5或7个甲基的三价连接基团,它可能具有一个或多个取代基;R.sup.11、R.sup.12、R.sup.13和R.sup.14中的每一个是氢原子,或者是一个烷基、苯基、酰基、烷氧基或5-或6-成员杂环基团,它可能具有一个或多个取代基;R.sup.15和R.sup.16中的每一个是可能具有一个或多个取代基的烷基基团,其中一个取代基可能具有一个阴离子部分;X.sub.a.sup.p--是一个阴离子;p为1、2或3;m为1或0;当R.sup.15或R.sup.16具有一个具有阴离子部分的取代基时,m为0。