POLYESTER RESIN COMPOSITION PRODUCTION METHOD, METHOD FOR REGENERATING RECOVERED POLYESTER RESIN, AND POLYESTER RESIN COMPOSITION

• Main Authors: KINAMI Maki, MORIYAMA Nobuo, NISHINAKA Fumiaki, YAMAMOTO Yu, SASAI Tamayo
• Format: Patent
• Language: English; French; Japanese
• Published: 29.12.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Provided is a method for producing a polyester resin composition (C) in which coloring and reduction in molecular weight are unlikely to occur even when being recycled multiple times using used polyester resins in which at least one selected from an antimony compound, a titanium compound, or a germa...