| 摘要 |
PURPOSE:To obtain the title compsn. superior in the permeation of spectral properties, by mixing a thermoplastic resin which is mainly based on PVC resin with a pigment or a dye which permeates selectively the light of a specific wavelength and a plasticizer having an average MW larger than a specific value. CONSTITUTION:A thermoplastic resin which is mainly based on polyvinyl chloride resin having good optical permeation (e.g. chlorinated polyvinyl chloride) and a pigment or a dye which permeates selectively the light of a specific wavelength. Then without adding any plasticizer or by adding a plasticizer having an average MW>=10,000, an aimed synthetic resin compsn. for a molded product having permeselective optical wavelength is obtd. As the plasticizer having the average MW>=100, an epoxidized soybean oil or a polyester of adipic acid or phthalic acid etc. is pref. used. The obtd. resin compsn. is pref. used for a remote-controlling means of television or an automatic means for measuring the focal length of a camera.
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