GLASS FIBER REINFORCED POLYAMIDE RESIN COMPOSITION AND MOLDING

• Main Authors: SAKUMA TERUAKI, TERADA KAZUNORI
• Format: Patent
• Language: English; Japanese
• Published: 12.03.2015
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To provide a glass fiber reinforced polyamide resin composition excellent in the fibrillation of glass fibers and excellent in appearance.SOLUTION: A glass fiber reinforced polyamide resin composition includes (A) a polyamide and (B) glass fibers. A 98% sulfuric acid relative viscosity r of (A) the polyamide in the glass fiber reinforced polyamide resin composition according to JIS-K6920 is 1.5 or more and 2.7 or less. When the ignition loss of (B) the glass fibers having a surface treatment agent and/or a fiber size is measured 10 times, an average X and a standard deviation satisfy the following formula (1). 6 /X×100≤25 ... (1) 【課題】ガラス繊維の解繊性に優れ、さらに外観に優れるガラス繊維強化ポリアミド樹脂組成物を提供することを目的とする。【解決手段】（Ａ）ポリアミドと、（Ｂ）ガラス繊維と、を含むガラス繊維強化ポリアミド樹脂組成物であって、前記ガラス繊維強化ポリアミド樹脂組成物中における、前記（Ａ）ポリアミドのＪＩＳ−Ｋ６９２０に従った９８％硫酸相対粘度； ｒが、１．５以上２．７以下であり、前記（Ｂ）ガラス繊維が、表面処理剤及び／又は集束剤を有し、前記（Ｂ）ガラス繊維の強熱減量を１０回測定したときの、平均値Ｘ及び標準偏差 が、以下の（１）式を満足する、ガラス繊維強化ポリアミド樹脂組成物。６ ／Ｘ?１００ ２５・・・（１）【選択図】なし