PROCESS OF MAKING A COPOLYESTER WITH GERMANIUM CATALYST

PROCESS OF MAKING A COPOLYESTER WITH GERMANIUM CATALYST

A process to produce a copolyester is provided comprising: a. polymerizing 1) at least one terephthalate monomer; 2) about 85 to about 96 mole % of ethylene glycol; and 3) about 4 to about 15 mole % of a combination diethylene glycol (DEG) and at least one glycol residue selected from the group cons...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kita, Matthew Robert, Woods, Jason Scott, Vogel, Carolin Adleheid, Fleenor, Coralie McKenna, Cannon, Joshua Seth, George, Scott Ellery, Horton, Jonathan Michael, Hu, Huamin, Treece, Mark Allan
Format: Patent
Sprache:eng
Schlagworte:
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
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Beschreibung
Zusammenfassung:A process to produce a copolyester is provided comprising: a. polymerizing 1) at least one terephthalate monomer; 2) about 85 to about 96 mole % of ethylene glycol; and 3) about 4 to about 15 mole % of a combination diethylene glycol (DEG) and at least one glycol residue selected from the group consisting of 1,4-cyclohexanedimethanol residues (CHDM), monopropylene glycol residues (MPG), and 2,2,4,4-tetramethy-1,3-cyclobutane diol residues (TMCD); in the presence of a germanium catalyst to produce the copolyester; wherein the germanium catalyst is present in the copolyester at a concentration of about 5 to about 500 ppm based on elemental germanium; wherein the diacid is based on the substantially equal diacid equivalents of 100 mole % to diol equivalence of 100 mole % for a total.