POLYCARBONATE RESIN COMPOSITION

• Main Author: MOGI ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 07.06.2018
• 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 composition which can more effectively absorb and cut off ultraviolet light, and does not cause a problem of gas generation when molded.SOLUTION: The polycarbonate resin composition contains, based on 100 pts.mass of a polycarbonate resin (A), 0.01 pts.mass or more and less than 0.08 pts.mass of an ultraviolet absorber (B1) having the maximum absorption wavelength of 360 nm or more and less than 375 nm determined according to JIS K7105, 0.01-0.2 pts.mass of an ultraviolet absorber (B2) having the maximum absorption wavelength of less than 360 nm, and 0.01-0.5 pts.mass of a phosphorus stabilizer (C).SELECTED DRAWING: None 【課題】紫外光をより効果的に吸収遮断でき、且つ、成形時のガス発生の問題がないポリカーボネート樹脂組成物を提供する。【解決手段】ポリカーボネート樹脂（Ａ）１００質量部に対し、ＪＩＳ Ｋ７１０５に準拠して求める最大吸収波長が３６０ｎｍ以上３７５ｎｍ未満である紫外線吸収剤（Ｂ１）を０．０1質量部以上０．０８質量部未満、最大吸収波長が３６０ｎｍ未満である紫外線吸収剤（Ｂ２）を０．０１〜０．２質量部、及びリン系安定剤（Ｃ）を０．０１〜０．５質量部含有することを特徴とするポリカーボネート樹脂組成物。【選択図】なし