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专利名称：Bis-(2-hydroxyethyl)-terephthalate发明人：John Martin Thompson申请号：US05/558694申请日：19750317公开号：US04002667A公开日：19770111
摘要：A process for the manufacture of bis-(2-hydroxyethyl)- terephthalate whichcomprises heating together dimethyl terephthalate and a substantial excess of ethyleneglycol in the presence of a basic ester interchange catalyst, under reduced pressurewhereby the by-product methanol is distilled out of the system. This process enablesbis(2- hydroxyethyl)- terephthalate of good quality to be made in improved yield andwith minimal oligomer formation compared with previously known methods. The productfinds application in the manufacture of polymers such as poly (ethylene terephthalate).
申请人：IMPERIAL CHEMICAL INDUSTRIES LIMITED
代理机构：Cushman, Darby & Cushman
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