A procedure for the crystallization of an Amorphous polyethylene naphthalate Polymer that contains a procedure parapeparar volatile Components and a high molecular weight Polyester

摘要

Refers to a process for the crystallization of a pen Prepolymer containing volatile components.The temperature is maintained at a temperature in a range between located approximately 20 more than the original yaproximadament unless the TG and TM of the Polymer, while seagita Pen.The Pen Prepolymer is present as chips or pellets.The pressure during Crystallization is maintained at a level greater than the pressure of the componentesvolu00e1tiles vaporde in the tillas Prepolymer pellets or in the pen,Conveniently through the presence of a gas or a liquid or a Liquid. Furthermore refers to a process for preparing a Polyester of High pesomolecular.