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    • 46. 发明授权
    • Modified normally liquid, water-soluble polyoxyalkylene polyamines
    • 改性常规液体,水溶性聚氧化烯多胺
    • US5103062A
    • 1992-04-07
    • US36955
    • 1987-04-10
    • Michael CuscuridaErnest L. Yeakey
    • Michael CuscuridaErnest L. Yeakey
    • C08G65/32C07C209/16C08G65/28
    • C07C209/16
    • In accordance with the process of the present invention normally liquid, water-soluble poly(oxyethylene/oxypropylene) polyamine products are prepared using an initiator, which may contain oxyethylene groups. In a series of alkoxylation reaction steps the initiator is reacted with predetermined weight percentages of ethylene oxide and propylene oxide, said process comprising the steps of:a. Charging a predetermined percentage of initiator to an alkoxylation reaction zone,b. Alkoxylating said initiator therein with predetermined percentages of ethylene oxide and propylene oxide to provide an intermediate polyol,c. Propoxylating said intermediate polyol with a predetermined percentage of propylene oxide to provide a normally liquid, water-soluble precursor polyol, andd. Catalytically reductively aminating said precursor polyol in the presence of a reductive amination catalyst in a reaction zone under reductive amination conditions in the presence of ammonia and hydrogen to provide said water-soluble poly(oxyethylene/oxypropylene) polyamine product.
    • 根据本发明的方法,通常使用可含有氧乙烯基的引发剂来制备通常为水溶性的聚(氧乙烯/氧丙烯)多胺产物。 在一系列烷氧基化反应步骤中,引发剂与预定重量百分比的环氧乙烷和环氧丙烷反应,所述方法包括以下步骤:a。 将预定百分比的引发剂装入烷氧基化反应区,b。 用预定百分比的环氧乙烷和环氧丙烷对所述引发剂进行烷氧基化以提供中间体多元醇,c。 用预定百分比的环氧丙烷丙氧基化所述中间体多元醇以提供通常为液体的水溶性前体多元醇,和d。 在还原胺化条件下,在氨和氢的存在下,在还原胺化催化剂存在下,在反应区域催化还原胺化所述前体多元醇,以提供所述水溶性聚(氧乙烯/氧丙烯)多胺产物。