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公开(公告)号:US09181392B2
公开(公告)日:2015-11-10
申请号:US14379576
申请日:2013-03-13
申请人: William H. Heath , Harpreet Singh , Amarnath Singh , Jorge Jimenez , Qiuyun Xu
发明人: William H. Heath , Harpreet Singh , Amarnath Singh , Jorge Jimenez , Qiuyun Xu
CPC分类号: C08G64/305 , C08G64/0208
摘要: Embodiments of the invention provide for methods of producing a polycarbonate polyol. The method includes charging a vessel with butanediol, charging the vessel with a polymerization catalyst, and adding to the vessel dimethyl carbonate at a rate of at least 2.0 g of DMC per minute per kg of BDO to produce polycarbonate polyol at a polycarbonate polyol yield of at least 80% of a theoretical yield.
摘要翻译: 本发明的实施方案提供了生产聚碳酸酯多元醇的方法。 该方法包括用丁二醇装入容器,用聚合催化剂装入容器,并以每千克BDO每分钟至少2.0克DMC的速率向容器中加入容器中,以聚碳酸酯多元醇的产率制备聚碳酸酯多元醇 至少80%的理论产量。
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2.
公开(公告)号:US09181391B2
公开(公告)日:2015-11-10
申请号:US14373955
申请日:2013-02-04
申请人: William H. Heath , Harpreet Singh , Amarnath Singh , Jorge Jimenez , Qiuyun Xu
发明人: William H. Heath , Harpreet Singh , Amarnath Singh , Jorge Jimenez , Qiuyun Xu
CPC分类号: C08G64/305 , C08G63/64
摘要: Polyester-co-carbonate polyols and methods for producing the same are provided. The method comprises reacting one or more alcohols having an OH functionality of two or more with one or more organic diacids to form a reaction mixture, adding a first amount of dialkyl carbonate to the reaction mixture to remove water remaining from the reaction mixture by azeotropic drying, adding a transesterification catalyst to the dialkyl carbonate containing reaction mixture and adding a second amount of dialkyl carbonate to the catalyst containing reaction mixture.
摘要翻译: 提供了聚酯 - 碳酸酯多元醇及其制备方法。 该方法包括将一种或多种具有两个或多个OH官能团的醇与一种或多种有机二酸反应以形成反应混合物,向反应混合物中加入第一量的碳酸二烷基酯以通过共沸干燥除去残留在反应混合物中的水 向含碳酸二烷基酯的反应混合物中加入酯交换催化剂,并向含催化剂的反应混合物中加入第二量的碳酸二烷基酯。
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