Patent ID: 9567428
Date: 2017-02-14
CPC Classifications: C08G,C08J,C08L

Claim:
1. A polylactic acid resin composition, comprising: a polylactic acid resin including a hard segment comprising a polylactic acid repeating unit of the following Chemical Formula 1, and a soft segment comprising a polyurethane polyol repeating unit in which structures of the following Chemical Formula 2 are linearly linked to each other via a urethane bond, wherein the urethane bond is bonded directly to each of the structures of Chemical Formula 2; and an antioxidant of 100 to 1500 ppmw per the amount of the monomers for forming the polylactic acid repeating unit: wherein A is a linear or branched alkylene of 2 to 5 carbon atoms, m is an integer of 10 to 100, and n is an integer of 700 to 5000.