| 摘要 |
<p><P>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. <P>SOLUTION: The near infrared ray-absorbing particle comprises a core particle comprising a crystallite of A<SB POS="POST">1/n</SB>CuPO<SB POS="POST">4</SB>, 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 NH<SB POS="POST">4</SB>; n is 1 when A is an alkali metal or NH4, or 2 when A is an alkaline earth metal. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
