The invention relates to a novel phthalocyanine compound absorbing in the near infrared region of the spectrum with a high absorption coefficient which features high solubility in solvents, good compatibility with resins and high aging resistance, thus finding application as a near infrared ray absorbing material or a light-heat conversion material with great advantage and to a process for producing the phthalocyanine compound. The novel phthalocyanine compound has the following general formula: ##STR1## wherein R represents alkyl or alkoxyalkyl; X represents halogen, alkylthio, phenylthio which may be substituted, or naphthylthio which may be substituted; M represents a couple of hydrogen atoms, a divalent metal, or a trivalent or tetravalent metal derivative. The near infrared ray absorbing and light-heat conversion materials containing the above phthalocyanine compound are also described.
本发明涉及一种新型
酞菁化合物,其在近红外区域具有高吸收系数,具有高溶解度、良好的
树脂相容性和高耐老化性,因此可作为近红外光吸收材料或光热转换材料具有很大的优势,并提供一种制备该
酞菁化合物的方法。该新型
酞菁化合物具有以下一般式:##STR1##其中,R代表烷基或烷氧基烷基; X代表卤素、烷
硫基、苯
硫基(可以被取代)或
萘硫基(可以被取代); M代表两个氢原子、二价
金属或三价或四价
金属衍
生物。还描述了含有上述
酞菁化合物的近红外光吸收和光热转换材料。