An object of the present invention is to provide a multi-layered polylactic acid resin foamed body of a crystalline polylactic acid resin which has good appearance and excellent mechanical strength such as bending strength and compressive strength and which is capable of being imparted with excellent...http://www.google.com.au/patents/US7901764?utm_source=gb-gplus-sharePatent US7901764 - Multi-layered polylactic acid resin foamed body and multi-layered polylactic acid resin foamed molded article
