Recycling polyethylene naphthalate containing materials in a process to produce diesters

Recycling polyethylene naphthalate containing materials in a process to produce diesters

A process for preparing a dialkylester of a naphthalenedicarboxylic acid comprising directing a liquid phase reaction mixture comprising a low molecular weight alcohol, a naphthalenedicarboxylic acid, a dialkylester of a naphthalenedicarboxylic acid, and a polyethylene naphthalate containing materia...

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Hauptverfasser: HUSSMANN, GREGORY P, MOSSMAN, ALLEN B, CLECKLER, J. DEVEN, YOUNG, DAVID A, EIFERT, RAYMOND J, MCMAHON, ROSEMARY F, MACEK, JOHN A, PANZER, MICHAEL J
Format: Patent
Sprache:chi ; eng
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator HUSSMANN, GREGORY P
MOSSMAN, ALLEN B
CLECKLER, J. DEVEN
YOUNG, DAVID A
EIFERT, RAYMOND J
MCMAHON, ROSEMARY F
MACEK, JOHN A
PANZER, MICHAEL J
description A process for preparing a dialkylester of a naphthalenedicarboxylic acid comprising directing a liquid phase reaction mixture comprising a low molecular weight alcohol, a naphthalenedicarboxylic acid, a dialkylester of a naphthalenedicarboxylic acid, and a polyethylene naphthalate containing material, at a given temperature and pressure through series arranged reaction zones and subsequently removing a product comprising a dialkylester formed by the reaction of the naphthalenedicarboxylic acid and the polyethylene naphthalate containing material with the low molecular weight alcohol from a reaction zone. This invention is also directed to a process for preparing a purified dialkylester of a naphthalenedicarboxylic acid comprising a series of crystallization and distillation steps, and combinations thereof.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title Recycling polyethylene naphthalate containing materials in a process to produce diesters
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