Patent ID: 9650350
Date: 2017-05-16
CPC Classifications: C07D,C08K,C08L

Claim:
1. A resin composition comprising: (A) 100 parts by weight of a resin component (component A) containing polylactic acid (component A-α); (B) 0.001 to 10 parts by weight of a cyclic carbodiimide compound (component B) having a cyclic structure represented by the following formula (5) in which first nitrogen and second nitrogen are bonded to each other via a bonding group, wherein the cyclic structure consisting only one carbodiimide group in one cyclic structure, and wherein the total number of atoms of (i) carbodiimide group and (ii) minimum number of atoms in the bonding group which directly connects the first nitrogen and second nitrogen of the carbodiimide group is 8 to 50 ; and (C) 0.001 to 2 parts by weight of at least one antioxidant (component C) selected from the group consisting of a hindered phenol-based compound, a phosphite-based compound, a phosphonite-based compound and a thioether-based compound. where in the above formula, Q is a divalent to tetravalent bonding group represented by the following formula (5-1) or (5-2): where the above formulas, Ar 1 and Ar 2 are each independently a divalent to tetravalent aromatic group having 5 to 15 carbon atoms; R 1 and R 2 are each independently a divalent to tetravalent aliphatic group having 1 to 20 carbon atoms, a divalent to tetravalent alicyclic group having 3 to 20 carbon atoms or a combination thereof; s is an integer of 0 to 10; k is an integer of 0 to 10; X 1 and X 2 are each independently a divalent to tetravalent aliphatic group having 1 to 20 carbon atoms, a divalent to tetravalent alicyclic group having 3 to 20 carbon atoms, a divalent to tetravalent aromatic group having 5 to 15 carbon atoms, or a combination thereof; Q when Q is a divalent bonding group, Ar 1 , Ar 2 , R 1 , R 2 , X 1 and X 2 are all divalent groups; when Q is a triavalent bonding group, one of A 1 , Ar 2 , R 1 , R 2 , X 1 and X 2 is a trivalent group; and when Q is a tetravalent bonding group, one of Ar 1 , Ar 2 , R 1 , R 2 , X 1 and X 2 is a tetravalent group, or two of them are trivalent groups.