Metal acetylacetonates as transesterification catalysts

Catalytic preparation of oligocarbonate polyol (A) (having an average molecular weight of 500-5000 g/mol) comprises reacting organic carbonate with aliphatic polyol, where the catalyst is metal acetyl acetonate based on metal having order number of 39, 57, 59-69 or 71 in the periodic table. Independ...

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Bibliographische Detailangaben
1. Verfasser:	HOFACKER, STEFFEN
Format:	Patent
Sprache:	eng ; pol
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:	Catalytic preparation of oligocarbonate polyol (A) (having an average molecular weight of 500-5000 g/mol) comprises reacting organic carbonate with aliphatic polyol, where the catalyst is metal acetyl acetonate based on metal having order number of 39, 57, 59-69 or 71 in the periodic table. Independent claims are also included for: (1) (A) obtained by the method; and (2) polyurethane and its prepolymer obtained from (A).