MODIFIED POLYBUTYLENE NAPHTHALATE FOR IMPROVED PERFORMANCE AND PROCESS OF MAKING THEREOF

A polybutylene naphthalate polyester and process for preparing polybutylene naphthalate polyester, for improving barrier performance of polyesters used in making of monolayer or multilayer containers. The process comprising: a) mixing butane diol with polymerization catalysts, monoethylene glycol, c...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	DILLYRAJ, Balasundaram, KULKARNI, Sanjay Tammaji, VYAS, Chandrakant Omkar
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A polybutylene naphthalate polyester and process for preparing polybutylene naphthalate polyester, for improving barrier performance of polyesters used in making of monolayer or multilayer containers. The process comprising: a) mixing butane diol with polymerization catalysts, monoethylene glycol, color toner, and at least one crystallization suppressing agent; b) reacting said mixture with naphthalene dicarboxylic acid or ester thereof to obtain oligomerized product via esterification or ester interchange; c) polymerizing said oligomer using at least one polymerization catalyst to obtain amorphous polybutylene naphthalate polyester chips; d) crystallizing said polybutylene naphthalate polyester chips; and e) subjecting said polyester chips to solid state polymerization to upgrade the intrinsic viscosity (I.V.) up to more than 0.40 dl/gm.