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公开(公告)号：US5728742A
公开(公告)日：1998-03-17
申请号：US628041
申请日：1996-04-04
IPC分类号： A61F13/53 , A61F5/44 , A61F13/15 , A61F13/49 , A61L15/00 , A61L15/20 , A61L15/34 , A61L15/48 , A61L15/60 , C08J3/12 , C08K5/19 , C08L101/14 , C08J9/36 , B05D3/00 , B05D7/00
CPC分类号： C08J3/124 , A61L15/20 , A61L15/34 , A61L15/48 , A61L15/60 , C08J2300/14 , Y10T428/249986
摘要： The subject invention provides water-swellable polymer compositions having reduced caking tendencies. Such polymer compositions can be produced by employing quaternary ammonium salts. In addition to having reduced caking tendencies such polymers have reduced dust and substantially maintain or increase the surface tension of an aqueous fluid in equilibrium with the polymer and air.
摘要翻译： 本发明提供具有降低的结块倾向的水溶胀性聚合物组合物。 这种聚合物组合物可以通过使用季铵盐来制备。 除了具有降低的结块倾向之外，这种聚合物具有减少的灰尘并且基本上保持或增加与聚合物和空气平衡的水性流体的表面张力。
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公开(公告)号：US06323252B1
公开(公告)日：2001-11-27
申请号：US09403812
申请日：2000-01-10
IPC分类号： C08J928
CPC分类号： C08J3/124 , A61L15/60 , C08J3/245 , C08J2300/14
摘要： A composition comprising aqueous fluid absorbent polymer particles which have been heat-treated at temperatures greater than 170° C. for more than 10 minutes, wherein the composition has been remoisturized, after the heat-treatment, with an aqueous additive solution, in the absence of an organic solvent or water-insoluble, non-swellable powder, and comprises 1 to 10 percent by weight, based on the total weight of the composition, water and wherein the composition is characterized by the ability to absorb at least 20 grams of a 0.9 weight percent aqueous saline solution under a pressure of 0.3 psi (21,000 dynes/cm2), that is, a 60 minute 0.3 psi (21,000 dynes/cm2) AUL greater than 20 grams/gram. A process for preparing such a composition.
摘要翻译： 一种组合物，其包含在大于170℃的温度下热处理超过10分钟的含水液体吸收聚合物颗粒，其中在热处理后，将组合物用水性添加剂溶液在不存在的情况下被再润湿 的有机溶剂或水不溶性的不溶胀粉末，并且基于组合物的总重量，包含1-10重量％的水，并且其中所述组合物的特征在于能够吸收至少20克的 0.9重量％的盐水溶液，在0.3psi（21,000达因/厘米2）的压力下，即大于20克/克的60分钟0.3psi（21,000达因/厘米2）AUL。 制备这种组合物的方法。
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公开(公告)号：US20100148752A1
公开(公告)日：2010-06-17
申请号：US12707705
申请日：2010-02-18
CPC分类号： B01D61/027 , B01D63/12 , B01D65/104 , B01D2311/06 , B01D2311/243
摘要： New methods and apparatus are described for assessing the integrity of a separation module or filtration system. A principle embodiment concerns use of a transient pulse of challenge species to probe a spiral wound module. The resulting time-dependent concentration of challenge species in the permeate is detected, recorded, and compared to a reference. An apparatus is further claimed for detecting permeate conductivity at multiple points within the permeate collection tube of a spiral wound module. Also disclosed is a process whereby the permeate stream from a filtration system is concentration by a high recovery membrane apparatus prior to measurement of challenge species concentration.
摘要翻译： 描述了用于评估分离模块或过滤系统的完整性的新方法和装置。 主要实施例涉及使用挑战物质的瞬态脉冲来探测螺旋缠绕模块。 检测，记录所产生的渗透物中挑战物质的时间依赖性浓度，并将其与参照物进行比较。 还要求一种用于检测螺旋缠绕模块的渗透物收集管内的多个点处的渗透物导电性的装置。 还公开了一种方法，其中来自过滤系统的渗透物流在测量攻击物质浓度之前由高回收膜装置浓缩。
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公开(公告)号：US20080105038A1
公开(公告)日：2008-05-08
申请号：US11660222
申请日：2005-07-29
IPC分类号： G01N15/08
CPC分类号： B01D61/027 , B01D63/12 , B01D65/104 , B01D2311/06 , B01D2311/243
摘要： New methods and apparatus are described for assessing the integrity of a separation module or filtration system. A principle embodiment concerns use of a transient pulse of challenge species to probe a spiral wound module. The resulting time-dependent concentration of challenge species in the permeate is detected, recorded, and compared to a reference. An apparatus is further claimed for detecting permeate conductivity at multiple points within the permeate collection tube of a spiral wound module. Also disclosed is a process whereby the permeate stream from a filtration system is concentration by a high recovery membrane apparatus prior to measurement of challenge species concentration.
摘要翻译： 描述了用于评估分离模块或过滤系统的完整性的新方法和装置。 主要实施例涉及使用挑战物质的瞬态脉冲来探测螺旋缠绕模块。 检测，记录所产生的渗透物中挑战物质的时间依赖性浓度，并将其与参照物进行比较。 还要求一种用于检测螺旋缠绕模块的渗透物收集管内的多个点处的渗透物导电性的装置。 还公开了一种方法，其中来自过滤系统的渗透物流在测量攻击物质浓度之前由高回收膜装置浓缩。
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公开(公告)号：US07698928B2
公开(公告)日：2010-04-20
申请号：US11660222
申请日：2005-07-29
IPC分类号： G01N15/08
CPC分类号： B01D61/027 , B01D63/12 , B01D65/104 , B01D2311/06 , B01D2311/243
摘要： New methods and apparatus are described for assessing the integrity of a separation module or filtration system. A principle embodiment concerns use of a transient pulse of challenge species to probe a spiral wound module. The resulting time-dependent concentration of challenge species in the permeate is detected, recorded, and compared to a reference. An apparatus is further claimed for detecting permeate conductivity at multiple points within the permeate collection tube of a spiral wound module. Also disclosed is a process whereby the permeate stream from a filtration system is concentration by a high recovery membrane apparatus prior to measurement of challenge species concentration.
摘要翻译： 描述了用于评估分离模块或过滤系统的完整性的新方法和装置。 主要实施例涉及使用挑战物质的瞬态脉冲来探测螺旋缠绕模块。 检测，记录所产生的渗透物中挑战物质的时间依赖性浓度，并将其与参照物进行比较。 还要求一种用于检测螺旋缠绕模块的渗透物收集管内的多个点处的渗透物导电性的装置。 还公开了一种方法，其中来自过滤系统的渗透物流在测量攻击物质浓度之前由高回收膜装置浓缩。
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公开(公告)号：US08272251B2
公开(公告)日：2012-09-25
申请号：US12707705
申请日：2010-02-18
IPC分类号： G01N15/08
CPC分类号： B01D61/027 , B01D63/12 , B01D65/104 , B01D2311/06 , B01D2311/243
摘要： New methods and apparatus are described for assessing the integrity of a separation module or filtration system. A principle embodiment concerns use of a transient pulse of challenge species to probe a spiral wound module. The resulting time-dependent concentration of challenge species in the permeate is detected, recorded, and compared to a reference. An apparatus is further claimed for detecting permeate conductivity at multiple points within the permeate collection tube of a spiral wound module. Also disclosed is a process whereby the permeate stream from a filtration system is concentration by a high recovery membrane apparatus prior to measurement of challenge species concentration.
摘要翻译： 描述了用于评估分离模块或过滤系统的完整性的新方法和装置。 主要实施例涉及使用挑战物质的瞬态脉冲来探测螺旋缠绕模块。 检测，记录所产生的渗透物中挑战物质的时间依赖性浓度，并将其与参照物进行比较。 还要求一种用于检测螺旋缠绕模块的渗透物收集管内的多个点处的渗透物导电性的装置。 还公开了一种方法，其中来自过滤系统的渗透物流在测量攻击物质浓度之前由高回收膜装置浓缩。
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