PROCESS FOR PREPARING POLYESTERS BY USING AN ADDITIVE

The application relates to a process for reducing the amount of hydroxyl-end-groups of polyesters, wherein the polyester is prepared from at least one dicarboxylic acid and at least one dihydroxy alcohol, and at least one additive selected from the group consisting of dicarboxylic acid anhydride and...

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Bibliographische Detailangaben
Hauptverfasser:	REISEN, Michael, BACHMANN, Holger, SARBANDI, Reza, SEIDEL, Eckhard, LINKE, Rainer
Format:	Patent
Sprache:	eng
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
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Beschreibung
Zusammenfassung:	The application relates to a process for reducing the amount of hydroxyl-end-groups of polyesters, wherein the polyester is prepared from at least one dicarboxylic acid and at least one dihydroxy alcohol, and at least one additive selected from the group consisting of dicarboxylic acid anhydride and/or monoisocyanate is added during and/or after the process of preparing the polyester.