专利名称:Process for the production of linear
polyesters
发明人:Werner Gey,Wolfgang R. Langhauser申请号:US05/555787申请日:19750306公开号:US03998793A公开日:19761221
摘要:An alkali metal hydrogen monoglycolphosphate is added to the reactionproduct of diethylene glycol and dimethyl terephthalate to arrest the ester-interchangereaction and nullify the action of the divalent metal salt catalyst. These phosphates areeasy to handle and convert the catalyst to an inactive compound which does notadversely affect subsequent polycondensation of the diethylene glycol terephthalate.
申请人:ZIMMER AKTIENGESELLSCHAFT
代理机构:Allegretti, Newitt, Witcoff & McAndrews
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