POLYCARBONATE RESIN COMPOSITION AND MOLDED PRODUCT OBTAINED USING THE SAME

• Main Authors: ENDO HIDEKI, SEKINE KEIJI
• Format: Patent
• Language: English
• Published: 29.06.2006
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PROBLEM TO BE SOLVED: To provide a polycarbonate resin molded product excellent in transparency and has a decorative hue. SOLUTION: The difference in refractive index between a glass filler and a polycarbonate resin is 0.004-0.015 against light with a wavelength of 486 nm, ≤0.002 against light with a wavelength of 589 nm and ≤0.002 against light with a wavelength of 656 nm, and the glass filler content is 2-40 mass%. The glass filler used here has a composition comprising, e.g. 50-60 mass% SiO2, 10-15 mass% Al2O3, 15-25 mass% CaO, 2-10 mass% TiO2, 2-8 mass% B2O3, 0-5 mass% MgO, 0-5 mass% ZnO, 0-5 mass% BaO, 0-5 mass% ZrO2, 0-2 mass% Li2O, 0-2 mass% Na2O and 0-2 mass% K2O, provided that the total content of Li2O, Na2O and K2O is 0-2 mass%. COPYRIGHT: (C)2006,JPO&NCIPI