| 摘要 |
PURPOSE:To obtain a polyamide resin composition having high transparency and excellent mechanical properties such as impact resistance by compounding a transparent polyamide resin with a specific styrene-butadiene copolymer and/or its modified product. CONSTITUTION:The objective resin composition is composed of (A) 95-60wt.% of a transparent polyamide resin composed of (A1) 100-30wt.% of a polyamide- forming unit consisting of isophthalic acid and/or terephthalic acid and a diamine of formula (R<1> and R<2> are H or 1-3C alkyl; n is integer of 0-6; H of the cyclohexane ring may be substituted with 1-3C alkyl) and (A2) 0-70wt.% of a polyamide-forming unit consisting of an omega-amino acid, a lactam or an aliphatic diamine and an aliphatic dicarboxylic acid and (B) 5-40wt.% of a styrene-butadiene copolymer (or its modified product) containing 15-45wt.% of styrene component. The composition may be further incorporated with <=80 pts.wt. of one or more fillers selected from glass fiber, glass flake and glass bead based on 100 pts.wt. of the composition. |
