Method for preparing amorphous biodegradable blended thermoplastic elastomers based on polymers from renewable sources

Abstract

The method for preparing amorphous biodegradable blended thermoplastic elastomers based on polymers from renewable sources is based on the fact that component A, which is a biodegradable polymer from renewable sources or a biodegradable copolymer from renewable sources, which is amorphous or low-crystalline, or it is a mixture of two or more such amorphous polymers or copolymers, wherein the total content of the crystalline phase of component A is a maximum of 2% by weight and the temperature Tg is below the application temperature of the final mixture, and component B, which is a biodegradable polymer from renewable sources or a biodegradable copolymer from renewable sources, which is low-crystalline or it is a mixture of two or more such amorphous polymers or copolymers, wherein the total content of the crystalline phase of component B is a maximum of 2% by weight and the temperature Tg is above the application temperature of the final mixture, are mixed together and the mixture is subsequently thoroughly homogenized.