Preparation of biologically degradable thermoplastic starch mixture by reactive extrusion in the presence of an acidic catalyst useful in the production of blow formed parts and thin films on conventional thermoplastics processing machines

摘要

A thermoplastic starch polymer mixture is obtained by reactive extrusion in the presence of an acidic catalyst of a mixture of native starch and at least one hydrophobic polymer with addition of a hydrolyzed component based on polyvinyl acetate and of lower polyfunctional alcohols and/ or water is new.