| 摘要 |
PROBLEM TO BE SOLVED: To provide a phthalocyanine dimer having low solar transmittance (excellent heat ray absorption power) and high visible light transmittance (excellent transparency).SOLUTION: In a phthalocyanine dimer, Zto Zare each independently a hydrogen atom, a halogen atom, a substituted or an unsubstituted phenoxy group, and 18 to 24 pieces out of Zto Zare each independently a substituted or an unsubstituted phenoxy group. |
