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公开(公告)号：US06162358A
公开(公告)日：2000-12-19
申请号：US92768
申请日：1998-06-05
申请人： Norman N. Li , Mark A. Kuehne , Robert J. Petersen
发明人： Norman N. Li , Mark A. Kuehne , Robert J. Petersen
CPC分类号： B01D71/56 , B01D69/125
摘要： Reverse osmosis membranes with improved water flux and excellent solute rejection characteristics are formed by interfacial reaction of an essentially monomeric polyamine reactant having an average of at least two amine functional groups with an essentially monomeric amine-reactive reactant having an average of at least 2.05 acyl halide functional groups, the polymerization reaction being conducted in the presence of a monohydric phenol on the surface of a porous substrate. A specific example is a high flux composite membrane prepared by coating a porous substrate with an aqueous solution containing about 0.1-20 wt % m-phenylenediamine and 0.1-9.9 wt % phenol, and interfacially contacting the coated substrate with a nonaqueous solution of about 0.01-10 wt % trimesoyl chloride for a time sufficient to form a polyamide coating, followed optionally by one or more washing and drying steps to remove the nonaqueous solvent and most or all of residual unreacted chemicals.
摘要翻译： 具有改善的水通量和优异的溶质排斥特性的反渗透膜通过具有平均至少两个胺官能团的基本上单体的多胺反应物与基本上单体的胺反应性反应物与平均至少2.05酰卤的界面反应形成 官能团，聚合反应在多孔基材表面的一元酚存在下进行。 一个具体实例是通过用含有约0.1-20重量％间苯二胺和0.1-9.9重量％苯酚的水溶液涂覆多孔基材制备的高通量复合膜，并将涂覆的基材与约0.01的非水溶液接触 -10重量％均苯三酰氯，持续足以形成聚酰胺涂层的时间，随后任选地通过一个或多个洗涤和干燥步骤去除非水溶剂和大部分或全部残留未反应的化学品。
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公开(公告)号：US4944416A
公开(公告)日：1990-07-31
申请号：US273837
申请日：1988-11-21
IPC分类号： A47F5/08
CPC分类号： A47F5/0846
摘要： A light-weight slotted panel for mounting merchandising accessories on the front face thereof. The panel is formed from a high density light-weight core composed of molded-board expanded plastic foam and is provided with a front facing sheet laminated thereto. Parallel slots are formed in both the core and facing sheet and configured to accept compatible merchandising accessories.
摘要翻译： 一个轻巧的开槽面板，用于在其正面安装商品附件。 面板由由模制板膨胀塑料泡沫构成的高密度轻质芯体形成，并且设置有层压在其上的前表面片材。 平行的狭槽形成在芯片和表面片材中，并配置为接受兼容的商品配件。
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公开(公告)号：US5031780A
公开(公告)日：1991-07-16
申请号：US533690
申请日：1990-06-06
IPC分类号： A47F5/08 , A47F7/14 , G11B23/023
CPC分类号： G11B23/0236 , A47F5/0846 , A47F7/14
摘要： Improved display module has at least one opening in a wall that would otherwise define a recess for insertion of a display object, e.g., a video cassette.
摘要翻译： 改进的显示模块在壁中具有至少一个开口，否则将限定用于插入显示对象（例如，录像带）的凹部。
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4.发明授权
公开(公告)号：US4964998A
公开(公告)日：1990-10-23
申请号：US450706
申请日：1989-12-13
CPC分类号： B01D67/0093 , B01D61/025 , B01D2323/30
摘要： A method of separating water of reduced concentration of a selected solute via reverse osmosis, wherein the selected solute is sulfuric acid, sodium hydroxide, isopropanol, sodium nitrate or another solute having a much higher solute passage than sodium chloride. The reverse osmosis membrane is prepared by treating a crosslinked, polyamide discriminating layer with an amine-reactive reagent or compatible oxidant at conditions whereby the passage of the selected solute at a selected transmembrane pressure is reduced by at least 30 percent.
摘要翻译： 一种通过反渗透分离浓度低的选定溶质的水的方法，其中选择的溶质是硫酸，氢氧化钠，异丙醇，硝酸钠或具有比氯化钠高得多的溶质通道的另一种溶质。 反渗透膜通过在胺反应试剂或相容氧化剂处理交联的聚酰胺鉴别层的条件下制备，在选定的跨膜压力下所选择的溶质通过至少30％的条件下进行。
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公开(公告)号：US11535531B2
公开(公告)日：2022-12-27
申请号：US16947527
申请日：2020-08-05
申请人： Robert J. Petersen
发明人： Robert J. Petersen
IPC分类号： C02F1/44 , C02F103/08
摘要： Spiral wound reverse osmosis devices with reduced lateral leakage and thereby increased salt rejection are made by compacting a microporous layer within a composite reverse osmosis membrane longitudinally along its lengthwise periphery. Means and method for causing longitudinal indentations in composite membranes during manufacturing operations are disclosed and described.
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公开(公告)号：US4769148A
公开(公告)日：1988-09-06
申请号：US122307
申请日：1987-11-18
申请人： Richard F. Fibiger , Ja-young Koo , David J. Forgach , Robert J. Petersen , Donald L. Schmidt , Ritchie A. Wessling , Thomas F. Stocker
发明人： Richard F. Fibiger , Ja-young Koo , David J. Forgach , Robert J. Petersen , Donald L. Schmidt , Ritchie A. Wessling , Thomas F. Stocker
CPC分类号： B01D69/125 , B01D71/56
摘要： An improved composite polyamide membrane and methods of making the membrane are described. This improved membrane is prepared using a cationic polymeric wetting agent in an aqueous solution containing a polyfunctional amine reactant which is interfacially polymerized with an acyl halide to form a thin film polyamide discriminating layer on a microporous support. Alternatively, the wetting agent can be applied directly to the substrate and the interfacial polymerization can occur on said treated substrate. The resulting membrane exhibits an unexpected combination of high water flux, high rejection of divalent anion salts, variable sodium chloride rejection and good caustic resistance at low operating pressures. In one embodiment of this invention, a porous substrate is first treated with an aqueous piperazine solution containing a copolymer of vinylbenzyl dimethyl sulfonium chloride and methacrylic acid and then the coated microporous support is contacted with trimesoyl chloride in an organic solvent.
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公开(公告)号：USD342398S
公开(公告)日：1993-12-21
申请号：US446402
申请日：1989-12-05
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公开(公告)号：US4008047A
公开(公告)日：1977-02-15
申请号：US536397
申请日：1974-12-26
申请人： Robert J. Petersen
发明人： Robert J. Petersen
CPC分类号： C08B13/00 , A61L33/08 , B01D71/22 , Y10S128/03
摘要： Fluoroacylation of ethyl cellulose has been found to result in good gas permeability and blood compatibility for polymeric layers made from the resulting fluorinated esters. The fluoroacylated ethyl cellulose has good hydrolytic stability at blood pH and under sterilization conditions (e.g. 100.degree. C). For use in blood oxygenation devices, implantable biomedical devices, blood sampling or analysis or purification devices, etc., it is preferred that the fluoroacylated ethyl cellulose be substantially free of residual OH and have a fluorine content above 10% by weight (e.g. at least about 12% by weight).
摘要翻译： 已经发现乙基纤维素的氟酰基化导致由所得氟化酯制成的聚合物层的良好的气体渗透性和血液相容性。 氟代酰化乙基纤维素在血液pH值和灭菌条件（例如100℃）下具有良好的水解稳定性。 为了在血氧装置，可植入生物医学装置，血液取样或分析或净化装置等中使用，优选的是，氟代酰化乙基纤维素基本上不含残留的OH，并且氟含量高于10重量％（例如至少 约12重量％）。
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公开(公告)号：US06967105B2
公开(公告)日：2005-11-22
申请号：US09728153
申请日：2000-12-02
IPC分类号： G01N1/30 , G01N33/558 , G01N21/77
CPC分类号： G01N1/30 , G01N33/558
摘要： A wicking material is disclosed that exhibits a horizontal wicking velocity of at least about 1.0 millimeter per second when contacted with a physiological fluid such as blood, lymph or cellular interstitial fluid. This high wicking rate is achieved by means of treatment of a fibrous wicking material candidate with a low temperature gas plasma, particularly a glow discharge gas plasma formed in a gaseous blend made up predominantly of a mixture of oxygen with a saturated alkane chosen from the group consisting of methane, ethane and propane. Diagnostic test strips made with the surface-modified wicking material, and containing an immobilized reagent means for analysis of an analyte in a physiological fluid, show improved performance in terms of increased accuracy, finer precision of analyses, reduced time of analysis, a smaller fluid sample size requirement, and improved compliance with manufacturing standards resulting in lower manufacturing costs blood sugar determinations.
摘要翻译： 公开了一种芯吸材料，当与诸如血液，淋巴或细胞间质液的生理液体接触时，其呈现至少约1.0毫米每秒的水平芯吸速度。 通过用低温气体等离子体处理纤维芯吸材料，特别是以主要由氧与饱和烷烃的混合物组成的气体共混物形成的辉光放电气体等离子体来实现这种高芯吸速率 由甲烷，乙烷和丙烷组成。 使用表面改性芯吸材料制成并含有用于分析生理液体中的分析物的固定化试剂的诊断试纸在提高精度，分析精度更高，分析时间更短，分析更少的流体方面表现出改进的性能 样品尺寸要求，并改进了制造标准的合规性，从而降低制造成本血糖测定。
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公开(公告)号：USD336605S
公开(公告)日：1993-06-22
申请号：US573660
申请日：1990-08-27
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