AUTOMOTIVE INTERIOR/EXTERIOR MEMBER

• Main Authors: ICHIHARA YOHEI, FUJITA ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 10.10.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide an automotive interior/exterior member that has an excellent heat resistance, impact resistance, light resistance and scratch resistance.SOLUTION: The automotive interior/exterior member comprising a polycarbonate resin composition having a predetermined amount of each of a particular polycarbonate resin, a butyl acrylate-methyl methacrylate-styrene-based rubber, a dibutyl hydroxytoluene, a diphenyl dimethicone having a kinematic viscosity at 23°C of 4000 to 5500 cSt, a hindered amine-based light stabilizer having a melting point of 125°C to 130°C, a benzotriazole light stabilizer having a melting point of 102°C to 106°C, a tris(2,4-di-t-butylphenyl)phosphite, and a hindered phenolic antioxidant having a molecular weight of 1100 to 1200, is used.SELECTED DRAWING: None 【課題】優れた耐熱性、耐衝撃性、耐光性及び耐傷付き性を有する自動車用内外装部材を提供する。【解決手段】特定のポリカーボネート樹脂、アクリル酸ブチル−メタクリル酸メチル−スチレン系ゴム、ジブチルヒドロキシトルエン、２３℃の動粘度が４０００〜５５００ｃＳｔであるジフェニルジメチコン、融点が１２５℃〜１３０℃であるヒンダードアミン系耐光安定剤、融点が１０２℃〜１０６℃であるベンゾトリアゾール系耐光安定剤、トリス（２，４−ジ−ｔ−ブチルフェニル）ホスファイト、分子量１１００〜１２００のヒンダードフェノール系酸化防止剤をそれぞれ所定量有するポリカーボネート樹脂組成物からなる自動車用内外装部材を用いる。【選択図】なし