METHOD FOR MANUFACTURE OF POLYESTERS WITH RECYCLE CONTENT

• Main Authors: HOWELL, EARL EDMONDSON JR, JACK, BOB N, HORTON, JONATHAN MICHAEL, EKART, MICHAEL PAUL, KEEVER, TRAVIS WYNN, MARTIN, DANIEL LEE
• Format: Patent
• Language: English; French
• Published: 24.06.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

A method for manufacture of polyesters with recycle content is described in various aspects. The methods of the present disclosure effectively and cost- efficiently incorporates recycled DMT into existing TPA-based polyester manufacturing systems. Recycle feed compositions for manufacture of polyesters with recycle content and recycled content polyesters are also described. Divers aspects de l'invention concernent un procédé de fabrication de polyesters ayant un contenu recyclé. Les procédés de la présente invention incorporent de manière efficace et rentable le DMT recyclé dans des systèmes de fabrication de polyester à base de TPA existants. L'invention concerne également des compositions d'alimentation de recyclage pour la fabrication de polyesters ayant un contenu recyclé et des polyesters à contenu recyclé.