ALIPHATIC-AROMATIC POLYESTER RESIN AND MOLDED ITEM THEREOF

An aliphatic-aromatic polyester resin comprising principal structural units that includes aliphatic dicarboxylic acid units, aromatic dicarboxylic acid units, and aliphatic diol units and/or alicyclic diol units, wherein an abundance ratio (molar ratio) between the aliphatic dicarboxylic acid units...

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Bibliographische Detailangaben
Hauptverfasser:	YATSUGI, Yutaka, TANAKA, Shunsuke, YASUI, Kouji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON 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 WORKING-UP
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Beschreibung
Zusammenfassung:	An aliphatic-aromatic polyester resin comprising principal structural units that includes aliphatic dicarboxylic acid units, aromatic dicarboxylic acid units, and aliphatic diol units and/or alicyclic diol units, wherein an abundance ratio (molar ratio) between the aliphatic dicarboxylic acid units and the aromatic dicarboxylic acid units is 15:85 to 85:15; the aliphatic-aromatic polyester resin has a glass transition temperature of -25°C or more; and the aliphatic-aromatic polyester resin has branched structures represented by formulae (1) to (4) below:where Ar1, Ar2, and Ar3 each independently represent an optionally substituted divalent group having 4 to 12 carbon atoms, the optionally substituted divalent group being a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group; R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and n, m, and r are each independently an integer of 2 to 10.