Prepn process of multicomponent copolymerized and modified PETG polyester

Prepn process of multicomponent copolymerized and modified PETG polyester

The present invention relates to chemical product, and is especially the preparation process of modified multicomponent copolymerized PETG polyester. The preparation process includes: A. compounding material with PTA, IPA, NPG, MEG and metal catalyst in certain molar proportion; B. esterification at...

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1. Verfasser: SHENGPING,YAO TANG
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Sprache:eng
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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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creator SHENGPING,YAO TANG
description The present invention relates to chemical product, and is especially the preparation process of modified multicomponent copolymerized PETG polyester. The preparation process includes: A. compounding material with PTA, IPA, NPG, MEG and metal catalyst in certain molar proportion; B. esterification at 210-260 deg.c temperature and 0.01-0.25 MPa pressure for 180-260 min; and C. condensation at 275-285 deg.c temperature and 0.098-0.1 MPa vacuum degree for 180-200 min. The present invention prepares polymer without crystallizing tendency with four kinds of monomer and through esterification and condensation, and the product has high transparency, high shrinkage, good hot sealing performance and high adaptability.
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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
title Prepn process of multicomponent copolymerized and modified PETG polyester
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