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1. 发明申请

WO2008137970A1 COMPRESSION VACUAPORE FOR DETERMINATION OF PORE STRUCTURE CHARACTERISTICS OF HYDROPHOBIC MATERIALS UNDER COMPRESSIVE STRESS 审中-公开
标题翻译：用于确定压缩应力下的疏水材料的孔结构特征的压缩空气
公开(公告)号：WO2008137970A1
公开(公告)日：2008-11-13
申请号：PCT/US2008/062997
申请日：2008-05-08
申请人： POROUS MATERIALS, INC. , GUPTA, Krishna , JENA, Akshaya
发明人： GUPTA, Krishna , JENA, Akshaya
IPC分类号： G01N15/08
CPC分类号： G01N15/088 , G01N15/0806
摘要： A method for determining pore structure characteristics of hydrophobic porous materials includes placing a test sample of material in the sample chamber of a porosimetry apparatus, creating a partial vacuum and evacuating the sample chamber to remove air, creating a partial vacuum and evacuating the penetrometer and storage vessel above the water level, releasing the vacuum in a controlled manner, so pressure is applied and water in the penetrometer enters the sample chamber and intrudes into pores of the sample, applying a measured amount of intrusion pressure and measuring the change in volume of water in the penetrometer, and determining pore structure characteristics of the sample based on the change in volume of water in the penetrometer. The method further includes an optional step of applying a desired amount of compressive stress on the sample prior to testing. Nonporous plates optionally are used to measure x-y plane pore structure.
摘要翻译：用于确定疏水性多孔材料的孔结构特征的方法包括将材料测试样品放置在孔隙率测定装置的样品室中，产生部分真空并排空样品室以除去空气，产生部分真空并抽空透度计和储存在水位以上，以受控的方式释放真空，施加压力，渗透计中的水进入样品室，并进入样品的孔中，施加测量的入侵压力并测量水的变化量在透度计中，并且基于透度计中的水的体积变化来确定样品的孔结构特征。该方法还包括在测试之前在样品上施加期望量的压应力的任选步骤。无孔板任选用于测量x-y平面孔结构。

2. 发明申请

WO2004001393A1 LIQUID EXTRUSION POROSIMETER AND METHOD 审中-公开
标题翻译：液体挤压成型机及方法
公开(公告)号：WO2004001393A1
公开(公告)日：2003-12-31
申请号：PCT/US2003/018074
申请日：2003-06-06
申请人： POROUS MATERIALS, INC. , GUPTA, Krishna, M. , JENA, Akshaya
发明人： GUPTA, Krishna, M. , JENA, Akshaya
IPC分类号： G01N15/08
CPC分类号： G01N15/0826
摘要： A porosimeter evaluates the porosity characteristics (specifically, pore volume, pore distribution and liquid permeability) of a porous sample of material. The porosimeter includes a fluid reservoir located below the sample, and a penetrometer comprising a vessel which catches any fluid displaced from the reservoir of fluid, wherein a level of fluid rises in the penetrometer when additional fluid enters the penetrometer. The sample is preferably wetted, with the same type of fluid which is in the reservoir, prior to placing the sample on the porosimeter. The porosimeter preferably also includes a membrane located between the sample and the reservoir of fluid. The membrane has pores with a size smaller than any of the sample pores. Permeability is measured by measuring rate of flow while the liquid level is above the sample.
摘要翻译：孔隙度计评估多孔材料样品的孔隙特性（具体地，孔体积，孔分布和液体渗透性）。孔隙率计包括位于样品下方的流体储存器，以及透明计，其包括捕获从流体储存器移位的任何流体的容器，其中当附加流体进入渗透计时，渗透计的水平升高。在将样品置于孔隙率计上之前，样品优选用与储存器中相同类型的流体润湿。孔隙率计优选地还包括位于样品和流体储存器之间的膜。膜具有尺寸小于任何样品孔的孔。当液面高于样品时，通过测量流量来测量渗透性。

3. 发明申请

WO2004094979A1 QUICK BET METHOD AND APPARATUS FOR DETERMINING SURFACE AREA AND PORE DISTRIBUTION OF A SAMPLE 审中-公开
标题翻译：快速测定方法和装置，用于确定样品的表面区域和孔分布
公开(公告)号：WO2004094979A1
公开(公告)日：2004-11-04
申请号：PCT/US2004/012533
申请日：2004-04-21
申请人： POROUS MATERIALS, INC. , GUPTA, krishna , JENA, Akshaya , WEBBER, Ronald , VENKATARAMAN, Chandrashekar
发明人： GUPTA, krishna , JENA, Akshaya , WEBBER, Ronald , VENKATARAMAN, Chandrashekar
IPC分类号： G01M3/02
CPC分类号： G01N15/0826 , G01N15/0893 , G01N2015/0833
摘要： A pressurizable sample chamber of known volume holds a sample with unknown porosity characteristics. The sample chamber has a known pressure (or vacuum). A flow controller preferably controls the flow of the pure gas to be adsorbeb by the sample in the sample chamber. A pressure monitor preferably monitors the pressure in the sample chamber. Once the pressure approaches a target pressure, the flow controller is closed. The pressure monitor continues to monitor the pressure until it stops changing when an equilibrium is attained. The amount of gas introduced into the system through the flow controller and the volume and final pressure of the sample chamber are used to calculate the amount of gas adsorbed. This calculation is subsequently used to determine the porosity characteristics of the sample. Some of these characteristics include, but are not limited to, pore distribution and surface area.
摘要翻译：已知体积的可加压样品室容纳具有未知孔隙特性的样品。样品室具有已知的压力（或真空）。流量控制器优选地通过样品室中的样品来控制待吸附的纯气体的流动。压力监测器优选地监测样品室中的压力。一旦压力达到目标压力，流量控制器就关闭。压力监视器继续监视压力，直到达到平衡时停止变化。通过流量控制器引入系统的气体量和样品室的体积和最终压力用于计算吸附气体的量。随后使用该计算来确定样品的孔隙度特性。这些特征中的一些包括但不限于孔分布和表面积。

4. 发明申请

WO2004094021A3 CAPILLARY CONDENSATION METHOD AND APPARATUS FOR DETERMINING POROSITY CHARACTERISTICS OF A SAMPLE 审中-公开
标题翻译：用于确定样品的孔隙特性的毛细管冷凝方法和装置
公开(公告)号：WO2004094021A3
公开(公告)日：2004-12-16
申请号：PCT/US2004012090
申请日：2004-04-19
申请人： POROUS MATERIALS INC , GUPTA KRISHNA , JENA AKSHAYA
发明人： GUPTA KRISHNA , JENA AKSHAYA
IPC分类号： G01N15/08
CPC分类号： G01N15/0826
摘要： A sample having a plurality of pores is located within a pressurizable chamber. The sample divides the chamber into a first volume and a second volume. A known amount of vapor is introduced into the first volume and the second volume at the same pressure (Px). After equilibrium is reached, pressure and decrease in volume of vapor are measured. Pore diameter and pore volume are calculated. A pressure differential is created between the two volumes, and the pressure change is monitored after the pressure differential is introduced. In a preferred embodiment, the pressure is increased in the first volume by a small percentage (DPx), and the pressure change on both sides of the sample is monitored after the pressure increase. The flow rate of the vapor is calculated using the pressure change. These steps are preferably repeated. The pore distribution in the sample is preferably calculated from the flow rates.
摘要翻译：具有多个孔的样品位于可加压室内。样品将室分成第一体积和第二体积。将已知量的蒸汽以相同的压力（Px）引入第一体积和第二体积。达到平衡后，测量蒸气压力和体积减少。计算孔径和孔体积。在两个体积之间产生压力差，并且在导入压力差之后监测压力变化。在优选实施例中，在第一体积中的压力增加小百分比（DPx），并且在压力增加之后监测样品两侧的压力变化。使用压力变化计算蒸气的流量。优选重复这些步骤。样品中的孔分布优选由流速计算。

5. 发明申请

WO2005106468A2 AUTOMATED CLAMP-ON SAMPLE CHAMBER FOR FLOW POROMETRY AND A METHOD OF USING SAME 审中-公开
标题翻译：用于流动元件的自动钳夹式样品室及其使用方法
公开(公告)号：WO2005106468A2
公开(公告)日：2005-11-10
申请号：PCT/US2005/012551
申请日：2005-04-14
申请人： POROUS MATERIALS, INC , GUPTA, Krishna, M. , JENA, Akshaya , WILSON, William
发明人： GUPTA, Krishna, M. , JENA, Akshaya , WILSON, William
IPC分类号： G01N33/497
CPC分类号： G01N15/088 , G01N2015/0866
摘要： A sample chamber includes a movable upper chamber. The movable upper chamber includes a center bore opening to a bottom of the chamber, at least one port for introduction of gas under pressure to the center bore, and a first annular seal around the center bore. A stationary lower seat opposing the upper chamber has a center bore aligned with the upper chamber. and includes an exhaust and a second annular seal around the center bore. A test material is placed between the upper chamber and the lower seat. An actuator moves the upper chamber. When the upper chamber is moved down with the first annular seal in contact with an upper surface of a sample of the material and the second annular seal in contact with a lower surface of the sample, gas introduced to the upper chamber goes through the upper chamber and out through the exhaust.
摘要翻译：样品室包括可移动的上室。可移动上部腔室包括通向腔室底部的中心孔，用于将压力下的气体引入中心孔的至少一个端口和围绕中心孔的第一环形密封件。与上室相对的固定下座具有与上室对准的中心孔。并且包括围绕中心孔的排气和第二环形密封。测试材料放置在上部室和下部座之间。致动器移动上部腔室。当上腔室向下移动时，第一环形密封件与材料样品的上表面相接触，而第二环形密封件与样品的下表面接触，导入上腔室的气体经过上腔室并通过废气排出。

6. 发明申请

WO2004094021A2 CAPILLARY CONDENSATION METHOD AND APPARATUS FOR DETERMINING POROSITY CHARACTERISTICS OF A SAMPLE 审中-公开
标题翻译：用于确定样品的孔隙特性的毛细管凝结方法和装置
公开(公告)号：WO2004094021A2
公开(公告)日：2004-11-04
申请号：PCT/US2004/012090
申请日：2004-04-19
申请人： POROUS MATERIALS, INC. , GUPTA, Krishna , JENA, Akshaya
发明人： GUPTA, Krishna , JENA, Akshaya
IPC分类号： B01D
CPC分类号： G01N15/0826
摘要： A sample having a plurality of pores is located within a pressurizable chamber. The sample divides the chamber into a first volume and a second volume. A known amount of vapor is introduced into the first volume and the second volume at the same pressure (Px). After equilibrium is reached, pressure and decrease in volume of vapor are measured. Pore diameter and pore volume are calculated. A pressure differential is created between the two volumes, and the pressure change is monitored after the pressure differential is introduced. In a preferred embodiment, the pressure is increased in the first volume by a small percentage (DPx), and the pressure change on both sides of the sample is monitored after the pressure increase. The flow rate of the vapor is calculated using the pressure change. These steps are preferably repeated. The pore distribution in the sample is preferably calculated from the flow rates.
摘要翻译：具有多个孔的样品位于可加压室内。样品将腔室分成第一体积和第二体积。已知量的蒸气以相同的压力（Px）引入第一体积和第二体积。达到平衡后，测量压力和蒸气体积的减少量。计算孔径和孔隙体积。两个容积之间产生压力差，并且在引入压差后监测压力变化。在一个优选实施例中，压力在第一体积中增加一小百分比（DPx），并且在压力增加之后监测样品两侧的压力变化。使用压力变化来计算蒸气的流量。这些步骤优选重复。样品中的孔分布优选从流速计算。

7. 发明申请

WO2005106468A3 CLAMP-ON CHAMBER FOR FLOW POROMETRY 审中-公开
标题翻译：用于流量测量的夹紧室
公开(公告)号：WO2005106468A3
公开(公告)日：2006-03-16
申请号：PCT/US2005012551
申请日：2005-04-14
申请人： POROUS MATERIALS INC , GUPTA KRISHNA M , JENA AKSHAYA , WILSON WILLIAM
发明人： GUPTA KRISHNA M , JENA AKSHAYA , WILSON WILLIAM
IPC分类号： G01N15/08 , G01N33/497
CPC分类号： G01N15/088 , G01N2015/0866
摘要： A sample chamber includes a movable upper chamber. The movable upper chamber includes a center bore opening to a bottom of the chamber, at least one port for introduction of gas under pressure to the center bore, and a first annular seal around the center bore. A stationary lower seat opposing the upper chamber has a center bore aligned with the upper chamber. and includes an exhaust and a second annular seal around the center bore. A test material is placed between the upper chamber and the lower seat. An actuator moves the upper chamber. When the upper chamber is moved down with the first annular seal in contact with an upper surface of a sample of the material and the second annular seal in contact with a lower surface of the sample, gas introduced to the upper chamber goes through the upper chamber and out through the exhaust.
摘要翻译：样品室包括可移动的上室。可移动上部腔室包括通向腔室底部的中心孔，用于将压力下的气体引入中心孔的至少一个端口和围绕中心孔的第一环形密封件。与上室相对的固定下座具有与上室对准的中心孔。并且包括围绕中心孔的排气和第二环形密封。测试材料放置在上部腔室和下部阀座之间。致动器移动上部腔室。当上室被向下移动时，第一环形密封件与材料样品的上表面相接触，而第二环形密封件与样品的下表面接触，导入上室的气体通过上室并通过尾气排出。

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