公开(公告)号：WO1998029257A1

公开(公告)日：1998-07-09

申请号：PCT/JP1997004735

申请日：1997-12-22

Applicant: TDK CORPORATION ,  KAMBE, Emiko ,  SHINKAI, Masahiro ,  KITAGAWA, Sumiko ,  MONDEN, Atsushi

Inventor： TDK CORPORATION

IPC: B41M05/26

CPC classification number: G11B7/246 ,  G11B7/2467 ,  G11B7/2472 ,  G11B7/248 ,  G11B7/249 ,  G11B7/2492 ,  G11B7/2495 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/2575 ,  G11B7/2595 ,  G11B2007/24612 ,  G11B2007/24618 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

Abstract: An optical recording medium permitting excellent recording and reproduction within the wavelength region of prior art and/or a short wavelength region of about 630 to 690 nm, which contains in the recording layer a salt-forming dye composed of an ion of an azo-metal complex of general formula (I): (A-N=N-B)m.M1, and an ion of a cyanine dye of general formula (II) and exhibiting a complex index of refraction wherein the imaginary part k is 0.20 or below in the wavelength regions of a recording beam and/or reproducing beam, or at least one member selected from among azooxovanadium metal complexes wherein the ligands are azo compounds of general formula (III): A-N=N-B, and metal complexes wherein the ligands are azo compounds of general formula (IV) or (V). In the formulae (I) and (III), A is an aromatic group substituted with an active hydrogen group at a position adjacent to the diazo group or a nitrogenous heteroaromatic group having a nitrogen atom capable of coordinating to the oxovanadium at a position adjacent to the carbon atom to which the diazo group is bonded; B is an aromatic group having an active hydrogen group at a position adjacent to the diazo group; m is 1 or 2; and M1 is a central metal; in formula (II), Q and Q are each an atomic group forming a 5-membered nitrogenous ring optionally having a fused ring: L is a methyne chain; and R and R are each alkyl, and in formulae (IV) and (V), X is an active hydrogen group; R and R are each alkyl, with the total number of carbon atoms of R and R being 2 to 8; R is nitro; and n is 0 or 1.

Abstract translation: 在现有技术的波长区域和/或约630至690nm的短波长区域内具有良好记录和再现性的光学记录介质，其在记录层中含有由偶氮金属离子组成的成盐染料 通式（I）：（AN = NB）m.M1的络合物和通式（II）的花青染料的离子，并表现出复数折射率，其中在波长区域中虚部k为0.20以下 的记录光束和/或再现光束，或至少一种选自其中配体是通式（III）的偶氮化合物：AN = NB的金属络合物和其中配体是通式为偶氮化合物的偶氮化合物的金属络合物 （Ⅳ）或（Ⅴ）。 在式（I）和（III）中，A是在与重氮基相邻的位置上被活性氢基取代的芳族基团或具有氮原子的氮杂原子基， 重氮基团键合的碳原子; B是在与重氮基相邻的位置上具有活性氢基团的芳族基团; m为1或2; M1是中心金属; 在式（II）中，Q 1和Q 2各自为形成任选具有稠环的5元含氮环的原子团：L为甲炔基链; R 1和R 2各自为烷基，在式（IV）和（V）中，X为活性氢基团; R 1和R 2各自为烷基，R 1和R 2的总碳原子数为2至8; R为硝基; n为0或1。