Patent ID: 8748526

Claim:
A thermoplastic elastomer composition comprising a thermoplastic resin (A) which is at least one polymer selected from the group consisting of a polylactic acid, a poly(3-hydroxybutyrate) polymer, a polybutylene succinate polymer and a polyglycolic acid, and at least one rubber (B) selected from a natural rubber, an acrylic rubber and a silicone rubber, the thermoplastic elastomer composition being obtained by allowing the rubber (B) to be dynamically crosslinked with a crosslinking agent (C) in the presence of the thermoplastic resin (A), and the composition comprises 10 to 90 parts by weight of the thermoplastic resin (A) based on 100 parts by weight of the rubber (B), and has a phase morphology in which a crosslinked product of the rubber (B) is dispersed in a continuous phase of the thermoplastic resin (A).