NEAR INFRARED RAY-ABSORBING PARTICLE, METHOD FOR PRODUCING THE SAME, DISPERSION LIQUID, RESIN COMPOSITION, ARTICLE HAVING NEAR INFRARED RAY-ABSORBING COATING FILM AND NEAR INFRARED RAY-ABSORBING ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a near infrared ray-absorbing particle which is high in the transmittance of a visible light region, is low in the transmittance of a near infrared region, steeply changes the transmittance in a wavelength region of 630-700 nm, and is excellent in moisture resistance; a method for producing the same; a dispersion liquid; a resin composition; an article having a near infrared ray-absorbing coating film; and a near infrared ray-absorbing article.;SOLUTION: The near infrared ray-absorbing particle comprises a core particle comprising a crystallite of A_1/nCuPO₄, and a shell covering the surface of the core particle and containing silicon oxide as a main component. In the formula, A is one or more selected from the group consisting of alkali metals (Li, Na, K, Rb, Cs), alkaline earth metals (Mg, Ca, Sr, Ba) and NH₄; n is 1 when A is an alkali metal or NH4, or 2 when A is an alkaline earth metal.;COPYRIGHT: (C)2013,JPO&INPIT