Patent ID: 8193263

Claim:
A flame-retardant glass fiber-reinforced polyamide resin composition, comprising: 100 parts by mass of a flame-retardant resin composition consisting of (A) 72 to 90 percent by mass of a polyamide resin, and (B) 28 to 10 percent by mass of a flame retardant containing no halogen atom, (A)+(B) being 100 percent by mass; 60 to 210 parts by mass of a flattened glass fiber (C) having an aspect ratio of 1.5-10, and 0.85 to 1.5 parts by mass of a phosphorus-based antioxidant (D) having a pentaerythritol diphosphite skeleton and a molecular weight of 600 to 800, wherein the polyamide resin (A) consists of a crystalline aliphatic polyamide resin having a melting point of 160-265° C. selected from the group consisting of nylon 6, nylon 66, copolymeric polyamides of nylon 6 and nylon 66, and mixed polyamides of nylon 6 and nylon 66 (a1) and an amorphous polyamide resin (a2), the flame retardant containing no halogen atom (B) comprises a phosphinate (b1) and/or a diphosphinate (b2), and a blending ratio of the amorphous polyamide resin (a2) in the polyamide resin (A) is 0.1≦(a2)/(A)≦0.5.