| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a translucent resin base material capable of using a resin having superior impact resistance, such as polycarbonate, and the translucent resin base material produced by the method. <P>SOLUTION: In the method for producing a translucent resin substrate which is formed by injecting a melted resin into a mold, a phthalocyanine pigment (A) having a minimum value of transmittance of less than 10% within the wavelength range of 800 nm to 850 nm in a spectral transmittance curve, a phthalocyanine pigment (B) having a minimum value of transmittance of less than 10% within the wavelength range of 950 nm to 1000 nm in a spectral transmittance curve, and a phthalocyanine pigment (C) having a minimum value of transmittance of less than 10% within the wavelength range of 875 nm to 925 nm in a spectral transmittance curve, each of which weighing between 0.1 ppm and 50 ppm, are mixed with the resin, melted with the resin and injected, and thereby a resultant product having a minimum value of transmittance of less than 5% within the wavelength range of 800 nm to 1000 nm in a spectral transmittance curve is obtained. <P>COPYRIGHT: (C)2012,JPO&INPIT |
