Titanium/zirconium catalysts and use thereof for production of esters or polyesters

本发明涉及通过钛和/或锆的原酸酯或缩合原酸酯与一种或多种多元醇反应生产的催化剂。将具有至少两个羟基并具有数均分子量为至少180g/mol的化合物用作多元醇组分。本发明还涉及生产上述催化剂的方法和其用于生产低着色的酯或聚酯的用途，该酯或聚酯可用于生产PUR泡沫。 The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting o...

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Bibliographische Detailangaben
Hauptverfasser:	H. NEFZGER, E. BAUER, A. HOFFMANN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	本发明涉及通过钛和/或锆的原酸酯或缩合原酸酯与一种或多种多元醇反应生产的催化剂。将具有至少两个羟基并具有数均分子量为至少180g/mol的化合物用作多元醇组分。本发明还涉及生产上述催化剂的方法和其用于生产低着色的酯或聚酯的用途，该酯或聚酯可用于生产PUR泡沫。 The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed orthoesters of titanium and/or zirconium, with one or more polyalcohols. Suitable polyalcohols comprise those compounds having at least two hydroxyl groups and a number average molecular weight of at least 180 g/mol. The invention also relates to a process for preparing (poly)esters from these novel catalysts, which exhibit little discoloration and are suitable to be used as a reaction component in the preparation of polyurethane (PUR) foams.