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公开(公告)号：US5582735A
公开(公告)日：1996-12-10
申请号：US569472
申请日：1995-12-08
CPC分类号： B01D61/362 , B01D53/22 , B01D53/228 , B01D61/00 , B01D71/68 , B01D2257/702
摘要： A method for removing condensable organics from a fluid is disclosed. A fluid contaminated with condensable organics is provided. A poly (alkyl sulfone) permeable membrane having a selectivity.gtoreq.20 is provided. The fluid is passed along a surface of the membrane. The organics permeate through the membrane. The permeated organics are recycled.
摘要翻译： 公开了一种从流体中除去可冷凝有机物的方法。 提供被可冷凝有机物污染的流体。 提供选择性≥20的聚（烷基砜）渗透膜。 流体沿着膜的表面通过。 有机物通过膜渗透。 渗透的有机物被回收利用。
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2.发明授权Neutralization of polyakylene carbonate polyols for polyurethane prepolymer synthesis 失效聚亚烷基碳酸酯多元醇中和聚氨酯预聚物合成
公开(公告)号：US5189196A
公开(公告)日：1993-02-23
申请号：US749487
申请日：1991-08-15
CPC分类号： C08G18/44 , C08G18/089 , C08K5/42
摘要： A prepolymer stabilization process for polyalkylene carbonate polyols includes the steps of adding a small quantity of an organosulfonic acid with stirring until base neutralization is achieved. One measure of base neutralization is a negative CPR, a test relating to controlled polymerization rate.
摘要翻译： 聚碳酸亚烷基酯多元醇的预聚物稳定化方法包括以下步骤：在搅拌下加入少量的有机磺酸直到达到碱中和。 碱性中和的一种测量是负CPR，与受控聚合速率有关的测试。
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