| 摘要 |
PROBLEM TO BE SOLVED: To provide articles having improved stain resistance, especially a casing or casing parts for a portable electronic device.SOLUTION: A use of a polyamide molding material for manufacturing an article having stain resistance with a stain trend of 15 or less is described. The molding material contains (A) 30 to 100 mass% of a polyamide mixture consisting of (A1) 50 to 98 mass% of one or more kinds of semi-aromatic polyamide and (A2) 2 to 50 mass% of one or more kinds of amorphous and/or microcrystalline polyamide having Tg of 100°C or more and different from (A1), where (A2) contains 20 to 100 mol% of one or more kinds of cyclic aliphatic diamine and 0 to 80 mol% of one or more kinds of other aliphatic and/or aromatic diamine (a1) and aromatic and/or aliphatic dicarboxylic acid having 6 or more carbon atoms (a2) as main components, (X) 0.01 to 20 mass% of one or more kinds of inorganic white pigment, (B) 0 to 70 mass% of a fiber and/or granular additive agent excluding the inorganic white pigment, (C) 0 to 30 mass% of a polymer other than (A), (D) 0 to 25 mass% of a fire retardant and (E) 0 to 3 mass% of an additive agent. |
