公开(公告)号：US20050096482A1

公开(公告)日：2005-05-05

申请号：US10502681

申请日：2002-10-28

Applicant: Ryozo Tamada ,  Yasuhiro Iguchi ,  Nobu Yoshimura ,  Shinichi Otuka

Inventor： Ryozo Tamada ,  Yasuhiro Iguchi ,  Nobu Yoshimura ,  Shinichi Otuka

IPC: C08J11/12 ,  C08J11/24 ,  C07C67/02

CPC classification number: C08J11/24 ,  C08J2367/02 ,  Y02W30/706

Abstract: A method of depolymerizing polyethylene terephthalate, and a method of manufacturing a polyester resin. When heating, melting and depolymerizing polyethylene terephthalate to be recycled, the heating, melting and depolymerization reaction of the polyethylene terephthalate to be recycled are carried out all at once using one or a plurality of extruders or using an extruder and a reactor provided at an outlet of the extruder. When manufacturing a polyester resin, the reactants are irradiated with microwaves, thus promoting the heating of the reactants, and promoting the esterification reaction.

Abstract translation: 聚对苯二甲酸乙二醇酯的解聚方法以及聚酯树脂的制造方法。 当加热，熔解和解聚聚对苯二甲酸乙二醇酯进行再循环时，使用一个或多个挤出机一次性使用挤出机和设置在出口处的反应器一次性进行待再循环的聚对苯二甲酸乙二醇酯的加热，熔融和解聚反应 的挤出机。 当制造聚酯树脂时，用微波照射反应物，从而促进反应物的加热，并促进酯化反应。