PROCESS AND APPARATUS FOR PREPARING BIODEGRADABLE POLYESTERS

PROCESS AND APPARATUS FOR PREPARING BIODEGRADABLE POLYESTERS

There is described a process for preparing a biodegradable polyester from an aromatic dicarboxylic acid, an aliphatic dicarboxylic acid and a diol (7; 9) where in a first reaction step the aromatic acid (6) is esterified with the diol (7; 9), and in a second reaction step the aliphatic acid (8) is a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: REISEN, Michael, 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:There is described a process for preparing a biodegradable polyester from an aromatic dicarboxylic acid, an aliphatic dicarboxylic acid and a diol (7; 9) where in a first reaction step the aromatic acid (6) is esterified with the diol (7; 9), and in a second reaction step the aliphatic acid (8) is added to the rection mixture. Furthermore, there is described an apparatus (1) for carrying out this process. (Fig. 1)