PRODUCTION AND USAGE OF PHOTOCHROMIC RESIN MOLDED ARTICLES

摘要

Disclosed is a method of mixing a photochromic compound and a resin, by incorporating 1-2g of the photochromic compound into 500-1,000g of the resin at 60-80 °C for 4-8 hours with stirring in the presence of a mixed organic solvent without lower alcohols and lower acetates, to form an incorporated photochromic resin, and then drying the incorporated resin. Moreover, the mixed organic solvent not containing lower alcohols and lower acetates is used, and the photochromic compound is uniformly incorporated into the resin through stirring and heating processes, therefore resulting in uniform color distribution and high color intensity. Also, a photochromic resin molded article using the method is provided, and is advantageous in terms of excellent external appearance and low price, due to uniform incorporation of a high concentration of the photochromic compound into the resin.