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LUSTROUS ELECTROMAGNETIC WAVE TRANSMISSIVE COATING FILM, ELECTROMAGNETIC WAVE TRANSMISSIVE COATING MATERIAL COMPOSITION FOR FORMING THIS FILM, AND METHOD OF FORMING ELECTROMAGNETIC WAVE TRANSMISSIVE COATING FILM THEREWITH
LUSTROUS ELECTROMAGNETIC WAVE TRANSMISSIVE COATING FILM, ELECTROMAGNETIC WAVE TRANSMISSIVE COATING MATERIAL COMPOSITION FOR FORMING THIS FILM, AND METHOD OF FORMING ELECTROMAGNETIC WAVE TRANSMISSIVE COATING FILM THEREWITH
A lustrous electromagnetic wave transmissive coating film includes: metal nano-particles containing one or more kinds of metals; and a first resin containing an oxazoline group and, a second resin containing a carboxyl group, in the resin component the carboxyl group derived from the second resin being present in a molar ratio of 0.03 to 50 times the oxazoline group derived from the first resin; wherein the resin component is soluble in ethanol, or, when water is added to a diethylene glycol diethyl ether solution obtained by dissolving 0.5 g of the resin component in 10 ml of diethylene glycol diethyl ether, an addition amount of the water until the diethylene glycol diethyl ether solution becomes turbid is 1.5 ml or more.
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