申请人:Hitachi Chemical Co., Ltd.
公开号:US05034309A1
公开(公告)日:1991-07-23
Novel naphthalocyanine derivatives are disclosed in the specification are useful for forming a recording layer in an optical recording medium. These derivatives are represented by the following formula (I): ##STR1## in which k, l, m and n, which may be the same or different, are zero or integers of 1 to 4, k+l+m+n being an integer of 1 or more; R.sup.1 's in a number of (k+l+m+n), which may be the same or different, are alkyl groups, substituted alkyl groups, or aryl groups; M is Si, Ge or Sn; and two Y's, which may be the same or different, are aryloxyl groups, alkoxyl groups, trialkylsiloxyl groups, triarylsiloxyl groups, trialkoxysiloxyl groups, triaryloxysiloxyl groups, trityloxyl groups, or acyloxyl groups. These derivatives are especially useful in the preparation of an optical recording medium.
本说明书披露了新型萘酞菁衍生物,可用于形成光学记录介质中的记录层。这些衍生物由以下公式(I)表示:##STR1## 其中,k、l、m和n是0或1至4的整数,k+l+m+n为1或更多的整数;(k+l+m+n)个R.sup.1',可以相同也可以不同,是烷基、取代烷基或芳基;M是Si、Ge或Sn;两个Y,可以相同也可以不同,是芳基氧基、烷氧基、三烷基硅氧基、三芳基硅氧基、三烷氧基硅氧基、三芳氧基硅氧基、三苄基氧基或酰氧基。这些衍生物在制备光学记录介质方面特别有用。