Yamamoto Chemicals, Inc.

Akihiro Kohsaka

Hiroyuki Sasaki

Yojiro Kumagae

Kenichi Kato

Provided are a novel naphthalocyanine compound, which has strong absorption in a near-infrared range, extremely weak absorption in a visible range, and high resistance such as light resistance and heat resistance, and exhibits excellent solubility in an organic solvent or a resin, a heat ray shielding material, and uses of the naphthalocyanine compound such as a heat ray shielding material and the like. The naphthalocyanine compound is represented by General Formula (1).   

Naphthalocyanine compound, method for producing same, and use thereof

Provided are a novel phthalocyanine compound, which has strong absorption in a near-infrared range, extremely weak absorption in a visible range, and high durability, and exhibits excellent solubility in an organic solvent or a resin, a process for producing the phthalocyanine compound, an intermediate, and uses thereof. The phthalocyanine compound is represented by General Formula (1),  In which in Formula (1), R represents an alkyl group or an aryl group, X represents a hydrogen atom, a halogen atom, or an alkyl group, X's can form an aromatic ring by being bonded to each other, M represents two hydrogen atoms, a divalent metal, or a derivative of a trivalent or tetravalent metal, and n represents an integer of 3 to 6.

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Yao, Japan

Akihiro Kohsaka