METHOD FOR PRODUCING POLYETHYLENE TEREPHTHALATE

• Main Authors: HIRAOKA SHOJI, MUKAI NOBUTADA
• Format: Patent
• Language: English
• Published: 19.10.2006
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a polyethylene terephthalate resin characterized as high transparency with a small amount of a cyclic trimer after molding and produced by using Ti as a catalyst. SOLUTION: The amount of the cyclic trimer in a molded product obtained by injection molding is regulated...