Biomass-resource-derived polyurethane, method for producing same, and biomass-resource-derived polyester polyol

The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	AOSHIMA TAKAYUKI, SUGAI NAOKI, MATSUMOTO TAKANAO, ITOU HIROTO, OHARA TERUHIKO, SUZUKI NAOKI, NAKAJIMA YASUKO
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHARACTERISTIC FEATURES OF FOOTWEAR CHEMISTRY COMPOSITIONS BASED THEREON FOOTWEAR HUMAN NECESSITIES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PARTS OF FOOTWEAR THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.