Molded article for transmitting diffused light

Abstract

Abstract PURPOSE:To obtain a molded article, having light transmission, flat and uniform light diffusibility, excellent color tone, and high workability, by mixing a specific organic phosphorus compound and glass particles to a polycarbonate resin, and melting and molding the mixture. CONSTITUTION:The objective molded article having the part transmitting diffused light and having a thickness of 25-10,000mum, is prepared by melting and molding (A) a polycarbonate resin with (B) an organic phosphorus compound and (C) glass particles. The difference between the refractive index of the glass and that of the component A is 0.005-0.2, and the average major and minor diameters of the particle are <=80mum and >=1mum, respectively. The component B satisfies the formula 0.001WA<=100WB<=0.5WA (WA and WB are pt.wt. of the component A and component B, respectively), and the component C satisfies the formula I and 1.5<=f<=20 [VA and VC are pt.vol. of the components A and C, respectively; f is defined by formula II; R is average particle diameter of the component C (average major diameter + average minor diameter)/2(mum); t is thickness of the part transmitting diffused light (mum)].

Inventors

• 👤 Tomoyoshi Yamase
• 👤 山瀬　知良
• 👤 Kazumitsu Furukawa
• 👤 一光 古川
• 👤 Takeshi Miyawaki
• 👤 剛 宮脇

Bibliographic Details