"processo para a produção de um poliéster e artigo"

The present invention relates to a process for producing a polyester comprising: (a) forming a polyester in a melt phase having an intrinsic viscosity of about 0.65 or more, provided that said forming is not by solid state polymerization; and (b) adding an anhydride to the polyester during the melt...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CLIVE ALEXANDER HAMILTON, ROBERT EDWARD NEATE, CATHERINE JANE COLEMAN
Format:	Patent
Sprache:	por
Schlagworte:	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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The present invention relates to a process for producing a polyester comprising: (a) forming a polyester in a melt phase having an intrinsic viscosity of about 0.65 or more, provided that said forming is not by solid state polymerization; and (b) adding an anhydride to the polyester during the melt phase. The present invention also includes articles comprising a composition produced by processes of the present invention.