POLYETHER CARBONATES BY DMC CATALYSIS

• Main Author: MCDANIEL, KENNETH G
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2017
• Subjects: 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

This invention relates to a process for preparation of polyether alkoxylated carbonates. These products may also be referred to as polyether polycarbonates. This process simultaneously transcarbonates and alkoxylates a mixture of one or more carbonate compounds, and one more hydroxyl group containing compounds, with at least one alkylene oxide in the presence of a mixture of catalysts. The catalyst mixture contains at least one DMC catalyst and at least one non-alkaline transesterification catalyst. This invention also relates to novel polyether polycarbonates, a process for preparing polyurethane foams from these novel polyether polycarbonates and to foams comprising these novel polyether polycarbonates. 本发明涉及种制备聚醚烷氧基化碳酸酯的方法。该产品也称为聚醚聚碳酸酯。所述方法在催化剂混合物存在下，使种或多种碳酸酯化合物和种以上含羟基的化合物的混合物，与至少种环氧烷烃同时发生碳酸酯交换和烷氧基化。所述催化剂混合物含有至少种DMC催化剂和至少种非碱性酯交换催化剂。本发明还涉及新的聚醚聚碳酸酯，种由这些新的聚醚聚碳酸酯制备聚氨酯泡沫材料的方法，并且涉及包含这些新的聚醚聚碳酸酯的泡沫。