POLYAMIDE RESIN COMPOSITION FOR AIMING NUT OF VEHICLE LIGHTING FIXTURE, AND AIMING NUT CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a polyamide resin composition for an aiming nut that has excellent heat resistance and impact resistance, has little change in dimension over a long period of time, and can be stably used; and an aiming nut using the same.SOLUTION: A polyamide resin composition for an aiming nut for a vehicle lighting fixture contains a semi-aromatic polyamide resin (A) and a modified olefin polymer (B) containing a functional group structural unit containing a hetero atom. The semi-aromatic polyamide resin (A) contains 50 mol% or more of a terephthalic acid component unit with respect to the total molar number of a dicarboxylic acid component unit. A glass transition temperature of the semi-aromatic polyamide resin (A) measured by DSC is set at 90-180°C. The modified olefin polymer (B) contains 0.03-2.0 mass% of a functional group structural unit with respect to the total mass of the modified olefin polymer (B).SELECTED DRAWING: None