| 摘要 |
A near-infrared ray absorbing synthetic resin composition containing a bipyrrolo isoquinoline compound represented by the following general formula (1) and a synthetic resin. In the formula, R1 and R2 may be identical with or different from each other, and each represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms optionally having substituents, an alkoxy group having 1 to 20 carbon atoms optionally having substituents, an aryl group having 6 to 20 carbon atoms optionally having substituents, an arylalkyl group having 7 to 20 carbon atoms optionally having substituents, or a cycloalkyl group having 5 to 12 carbon atoms optionally having substituents. The content of the above-mentioned bipyrrolo isoquinoline compound is preferably 0.001 to 20 parts by mass with respect to 100 parts by mass of the above-mentioned synthetic resin.
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