| 摘要 |
PROBLEM TO BE SOLVED: To provide a near-infrared absorbing pressure-sensitive adhesive excellent in optical characteristics and durability. SOLUTION: The near-infrared absorbing pressure-sensitive adhesive comprises: an acrylic pressure-sensitive adhesive containing only carboxyl groups with the acid value 5 to 15 mg KOH/g; and a diimonium salt compound represented by the specified general formula (1) in a dispersion state of fine particles of 0.01 to 0.1μm. The diimonium salt compound is included as aggregates of 30μm or smaller with 0.5 to 3.0 pts.mass relative to 100 pts.mass of the solid content. COPYRIGHT: (C)2013,JPO&INPIT |
