POLYESTER POLYOL, POLYURETHANE, OBTAINED USING THE SAME, PROCESS FOR PRODUCTION THEREOF, AND MOLDED POLYURETHANE

A process for producing a polyurethane, which comprises using a polyester polyol (a-1), a polyether polyol (b), an isocyanate compound (c) and a chain extender (d) as a raw material to produce a polyurethane, wherein the polyester polyol (a-1) is a polyester polyol (a-1) obtained by forming an ester...

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Bibliographische Detailangaben
Hauptverfasser: KUSAKA HARUHIKO, NAGAHAMA HISASHI, NAKAGAWA YOUKO, TANIGUCHI TAKANORI, HIROOKA DAISUKE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A process for producing a polyurethane, which comprises using a polyester polyol (a-1), a polyether polyol (b), an isocyanate compound (c) and a chain extender (d) as a raw material to produce a polyurethane, wherein the polyester polyol (a-1) is a polyester polyol (a-1) obtained by forming an ester bond between either a carboxyl group of a polycarboxylic acid (i-1) having a polysiloxane framework and a plurality of carboxyl groups or an ester group of a polycarboxylic acid ester (i-2) having a polysiloxane framework and a plurality of ester groups, and a hydroxyl group of a polyether polyol (ii).