BLOW MOLDED PRODUCT MADE OF RECOVERED POLYESTER RESIN, ITS MOLDING METHOD, AND BLOW MOLDING MACHINE

摘要

PROBLEM TO BE SOLVED: To certainly and efficiently obtain a reusable blow molded product by increasing the molecular weight of a recovered polyester resin. SOLUTION: The blow molded product made of the recovered polyester resin is obtained by kneading/melting/reacting a resin composition, which is prepared by adding 0.1-5pts.wt. of a mixture, which comprises 0-100wt.% of a compound containing two epoxy groups in its molecule and 100-0wt.% of a compound containing three or more epoxy groups and is used as a binder, and 0.01-5pts.wt. of a metal carboxylate being a bonding reaction catalyst to 100pts.wt. of a recovered straight chain saturated polyester resin, to form a cylindrical parison and molding a bottomed preform from the parison to subject the same to biaxial stretch blow molding using blowing air and a stretching rod so as to obtain a predetermined draw ratio. COPYRIGHT: (C)2004,JPO