Particulate expandable polylactic acid, a method for producing the same, a foamed moulded product based on particulate expandable polylactic acid, as well as a method for producing the same

摘要

Disclosed is a particular expandable polylactic acid, wherein said particulate polylactic acid is provided with a coating selected from the group consisting of polyvinyl acetate, polyvinyl-acetate-based polymer, casein, ethyl cellulose, polycaprolactone, amorphous polyactic acid and one or more combinations thereof. Further disclosed is a method for producing a particulate expandable polylactic acid As described, comprising the steps of a) providing a polylactic acid; b) forming the polylactic acid obtained in step a) into particles; c) coating the particulate polylactic acid obtained in step b); d) impregnating the coated particulate polylactic acid obtained in step c) with a blowing agent to obtain a particulate, expandable polylactic acid.