CATALYST SYSTEMS FOR CRYSTALLIZABLE REACTOR GRADE RESINS WITH RECYCLED CONTENT

The present disclosure relates to a catalyst system to produce crystallizable polyester compositions which comprise residues of terephthalic acid, neopentyl glycol (NRG), 1,4-cyclohexanedimethanol (CHDM), ethylene glycol (EG), and diethylene glycol (DEG), in certain compositional ranges having certa...

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Bibliographic Details
Main Authors HOWELL, Earl Edmondson, Jr, EDENS, Aaron Nathaniel, QUILLEN, Donna Rice, GREENE, Carol Juilliard, PETERS, Mark Allen, EKART, Erin G, EKART, Michael Paul, HORTON, Jonathan Michael, JACKSON, Anne-marine Sherbeck, KEEVER, Travis Wynn
Format Patent
LanguageEnglish
French
German
Published 17.08.2022
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
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Summary:The present disclosure relates to a catalyst system to produce crystallizable polyester compositions which comprise residues of terephthalic acid, neopentyl glycol (NRG), 1,4-cyclohexanedimethanol (CHDM), ethylene glycol (EG), and diethylene glycol (DEG), in certain compositional ranges having certain advantages and improved properties including recyclability. The present disclosure also relates to a catalyst system to produce crystallizable polyester compositions which comprise residues of recycled terephthalic acid, recycled neopentyl glycol (NRG), recycled 1,4-cyclohexanedimethanol (CHDM), recycled ethylene glycol (EG), and/or recycled diethylene glycol (DEG), in certain compositional ranges having certain advantages and improved properties including recyclability.
Bibliography:Application Number: EP20200799903