Biodegradable polyester mixture

The invention relates to a biodegradable polyester mixture, containing: i) 45 to 95 wt percent, with respect to the total weight of components i and ii, of a polyester I, which is synthesized from: a-1) 40 to 70 wt percent, with respect to the total weight of components a and b, of an aliphatic C9-C...

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Bibliographische Detailangaben
Hauptverfasser:	AUFFERMANN JORG, LOOS ROBERT, SKUPIN GABRIEL, KUNKEL ANDREAS, LOHMANN JEROME, BORGER LARS, SINKEL CARSTEN, YANG XIN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING 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 WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a biodegradable polyester mixture, containing: i) 45 to 95 wt percent, with respect to the total weight of components i and ii, of a polyester I, which is synthesized from: a-1) 40 to 70 wt percent, with respect to the total weight of components a and b, of an aliphatic C9-C18 dicarboxylic acid or a C9-C18 dicarboxylic acid derivative; b-1) 30 to 60 wt percent, with respect to the total weight of components a and b, of terephthalic acid or a terephthalic acid derivative; c-1) 98 to 100 wt percent, with respect to the total weight of components a and b, of a C3-C6 diol; d-1) 0 to 2 wt percent, with respect to the total weight of components a and b, of an at least trivalent alcohol; e-1) 0 to 2 wt percent, with respect to the total weight of components a to e, of a chain extender; and ii) 5 to 55 wt percent, with respect to the total weight of components i and ii, of a polyester II, which is synthesized from: a-2) 40 to 70 wt percent, with respect to the total weight of components a and b, of an aliphatic C4-C6 dicarboxylic acid or a C4-C6 dicarboxylic acid derivative; b-2) 30 to 60 wt percent, with respect to the total weight of components a and b, of terephthalic acid or a terephthalic acid derivative; c-2) 98 to 100 wt percent, with respect to the total weight of components a and b, of a C3-C6 diol; d-2) 0 to 2 wt percent, with respect to the total weight of components a and b, of an at least trivalent alcohol; e-2) 0 to 2 wt percent, with respect to the total weight of components a to e, of a chain extender. 10 to 25 wt percent, with respect to the total weight of polymer mixtures i to iv, of calcium carbonate; and 3 to 15 wt percent, with respect to the total weight of polymer mixtures i to iv, of talc.