Patent ID: 6878762

Claim:
A polyamide resin composition having excellent weather resistance, comprising a polyamide resin and from 0.05 to 2 parts by weight of a combination of an N—O—R low-molecular-weight hindered amine light-resistant stabilizer and a high-molecular-weight hindered amine light-resistant stabilizer per 100 parts by weight of the composition, said high-molecular-weight hindered amine light-resistant stabilizer having a molecular weight higher than that of said low-molecular-weight hindered amine light-resistant stabilizer, said N—O—R low molecular weight hindered amine light-resistant stabilizer being a compound having a structure shown by the following formula within the molecule: wherein R 1 , R 2 , R 3 and R 4 each represents an alkyl group and R 5 represents an alkyl group, a cycloalkyl group or an aryl group.