公开(公告)号：WO2022251835A1

公开(公告)日：2022-12-01

申请号：PCT/US2022/072540

申请日：2022-05-24

Applicant: AMTEK RESEARCH INTERNATIONAL LLC

Inventor： SPITZ, Don ,  NORRIS, John ,  WOOD, Weston J. ,  PEKALA, Richard W.

IPC: A41D13/12 ,  D04H1/4291

Abstract: Infection control or protective clothing articles, such as gowns, to be worn by healthcare workers in a medical environment, for example a hospital or assisted living facility are disclosed. The articles are formed of a hydrophobic, breathable, polyolefin-based web with a controlled pore size less than or about equal to the size of most bacterial or viral particles. The articles can also be made from composites including the polyolefin-based web. Methods of manufacturing the articles are also disclosed.

公开(公告)号：WO2014151991A1

公开(公告)日：2014-09-25

申请号：PCT/US2014/026780

申请日：2014-03-13

Applicant: AMTEK RESEARCH INTERNATIONAL LLC

Inventor： PEKALA, Richard, W. ,  LA, Chi, Thuong-Le ,  ROGERS, Cory, S. ,  FRENZEL, Jeffry, M. ,  WATERHOUSE, Robert ,  WALKER, David P.

IPC: H01M2/16 ,  B32B5/22

CPC classification number: H01M2/166 ,  B29C47/0021 ,  B29C71/0009 ,  B29C2071/0027 ,  B29K2023/0683 ,  B29K2105/16 ,  B29K2509/00 ,  B29K2995/0003 ,  B29K2995/0068 ,  B29K2995/0081 ,  B29L2007/008 ,  B29L2031/3468 ,  H01M2/145 ,  H01M2/162 ,  H01M2/1646 ,  H01M10/06 ,  H01M2220/20 ,  Y02E60/126 ,  Y02P70/54

Abstract: A lead-acid battery separator with ultralow resistivity results from high porosity, controlled pore (10) size distribution, and an ionic surfactant (14) with a long alkyl side chain (18) that is anchored to the polymer matrix (12) of a silica-filled polyethylene separator. The surfactant cannot be easily removed or washed away and thereby imparts sustained wettability to the separator. Controlling the number of, and volume occupied by, the pores ( i.e ., porosity) and pore size distribution of the separator contributes to a reduction in electrical (ionic) resistivity.

Abstract translation: 具有超低电阻率的铅酸电池隔膜由高孔隙度，可控孔（10）尺寸分布产生，并且具有锚定于聚合物基体（12）的长烷基侧链（18）的离子表面活性剂（14） 二氧化硅填充聚乙烯隔板。 表面活性剂不容易除去或冲洗掉，从而赋予隔膜持续的润湿性。 控制分离孔的数量和体积占据的孔隙（即孔隙率）和孔径分布有助于电（离子）电阻率的降低。

公开(公告)号：WO2005069927A2

公开(公告)日：2005-08-04

申请号：PCT/US2005/001654

申请日：2005-01-18

Applicant: AMTEK RESEARCH INTERNATIONAL LLC ,  PEKALA, Richard, W. ,  WATERHOUSE, Robert

Inventor： PEKALA, Richard, W. ,  WATERHOUSE, Robert

IPC: H01M4/86 ,  H01M4/88

CPC classification number: H01M4/8605 ,  H01M4/8652 ,  H01M4/8668 ,  H01M4/8673 ,  H01M4/8875 ,  H01M4/96 ,  H01M8/1004

Abstract: Preferred embodiments of an electrically conductive, freestanding, porous, polymer film (40) include multiple ribs (46) projecting from one or both of the major surfaces (42) and (44) of the polymer film. The polymer film further includes a polymer matrix binding a material composition having electrical conductivity properties. The material composition includes a carbonaceous, electrochemically active powder and an electrically conductive agent, and the polymer matrix includes an ultrahigh molecular weight polyolefin having a molecular weight that provides sufficient molecular chain entanglement to form a microporous film with freestanding characteristics. The polymer film may be used in an electrochemical cell (60) for use in purifying water by capacitive deionization.

Abstract translation: 导电，独立，多孔的聚合物膜（40）的优选实施例包括从聚合物膜的一个或两个主表面（42）和（44）突出的多个肋（46）。 聚合物膜还包括结合具有导电性质的材料组合物的聚合物基质。 所述材料组合物包括碳质电化学活性粉末和导电剂，并且所述聚合物基质包括具有提供足够的分子链缠结以形成具有独立特性的微孔膜的分子量的超高分子量聚烯烃。 聚合物膜可以用于电化学电池（60）中，用于通过电容去离子来净化水。

公开(公告)号：WO2003041098A1

公开(公告)日：2003-05-15

申请号：PCT/US2002/032390

申请日：2002-10-10

Applicant: AMTEK RESEARCH INTERNATIONAL LLC ,  PEKALA, Richard, W.

Inventor： PEKALA, Richard, W.

IPC: H01G9/00

CPC classification number: H01M4/8605 ,  H01G9/042 ,  H01G9/155 ,  H01M2/1653 ,  H01M2/1673 ,  H01M4/50 ,  H01M4/622 ,  H01M4/623 ,  H01M4/8875 ,  H01M4/96 ,  H01M8/1004 ,  Y02E60/13 ,  Y10T29/417

Abstract: A freestanding, microporous polymer sheet (30) is composed of a polymer matrix binding and electrically conductive matrix (52, 56). The polymer matrix preferably includes UHMWPE, and the electrically conductive matrix (52, 56) preferably contains one of a carbonaceous material and a metal oxide, or a combination thereof. The UHMWPE is of a molecular weight that provides sufficient molecular chain entanglement to form a sheet with freestanding characteristics. Multiple microporous sheets can be wound or stacked in a package filled with an electrolyte to function as electrodes in an energy storage device, such as a battery or an ultracapacitor.

Abstract translation: 独立的微孔聚合物片30由聚合物基质结合和导电基体52,56组成。聚合物基体优选包括UHMWPE，并且导电基体52,56优选地包含碳质材料和金属氧化物之一，或 其组合。 UHMWPE具有提供足够的分子链缠结以形成具有独立特性的片材的分子量。 可以将多个微孔板卷绕或堆叠在填充有电解质的包装中，用作诸如电池或超级电容器的能量存储装置中的电极。

公开(公告)号：WO2022266595A1

公开(公告)日：2022-12-22

申请号：PCT/US2022/072875

申请日：2022-06-10

Applicant: AMTEK RESEARCH INTERNATIONAL LLC

Inventor： WATERHOUSE, Robert ,  ROGERS, Cory S. ,  HOSTETLER, Eric B. ,  PEKALA, Richard W.

IPC: B01D3/36 ,  B01D11/04 ,  B01D67/00 ,  B29C48/16 ,  B29C48/275 ,  C09K5/02 ,  C09K5/04

Abstract: An environmentally friendly closed loop manufacturing process (101, 102) produces microporous membranes (32) by cast or extrusion of polymer-plasticizer mixtures followed by non-porous film formation (20), extraction (22) of the plasticizer using an azeotrope solvent and thereby forming a solvent-laden sheet and a mixture of plasticizer and azeotrope solvent, distillation (28) of the mixture to separate the plasticizer and azeotrope solvent for reuse, evaporation (30) of the azeotrope solvent from the solvent-laden sheet to form the micropores, and capture of the resultant solvent vapor for subsequent adsorption-desorption of the azeotrope solvent from activated carbon (34) or by vapor condensation (36) for reuse in the manufacturing process. The azeotrope solvent is at least a two-component mixture of solvents, one of which is designed for efficient removal of the plasticizer, while the other component(s) render(s) the azeotrope solvent non-flammable.

公开(公告)号：WO2020163649A1

公开(公告)日：2020-08-13

申请号：PCT/US2020/017089

申请日：2020-02-06

Applicant: AMTEK RESEARCH INTERNATIONAL LLC

Inventor： PEKALA, Richard, W. ,  STOCK, Jennifer

IPC: B65H75/26 ,  B65H75/02 ,  H01M2/16 ,  H01G11/52

Abstract: Rolls of battery separator material and related methods are disclosed. A roll of battery separator material includes a core including an outside surface, a separator material rolled around the core, and a friction enhancing surface on at least a portion of the outside surface of the core to prevent the separator material from lateral migration relative to the outside surface of the core.

公开(公告)号：WO2011133677A1

公开(公告)日：2011-10-27

申请号：PCT/US2011/033263

申请日：2011-04-20

Applicant: AMTEK RESEARCH INTERNATIONAL, LLC ,  WATERHOUSE, Robert, R. ,  LA, Chi Thuong-Le ,  PEKALA, Richard, W.

Inventor： WATERHOUSE, Robert, R. ,  LA, Chi Thuong-Le ,  PEKALA, Richard, W.

IPC: H01M2/02

CPC classification number: H01M10/06 ,  H01M2/1613 ,  H01M2/1646 ,  H01M2/166 ,  H01M10/4235 ,  Y02E60/126 ,  Y02P70/54 ,  Y02T10/7016

Abstract: A battery separator (116) includes dispersed throughout its porous structure a benzaldehyde derivative as a hydrogen-evolution inhibitor to improve the cycle life of a lead-acid battery (100) containing the battery separator. The disclosed battery separator is particularly useful in a deep cycle battery installed in an electric vehicle, such as a golf car or a floor scrubber. Preferred embodiments of the disclosed battery separator are based on a microporous polyethylene separator material or on an absorptive glass mat (AGM) separator material having a porous structure through which the hydrogen-evolution inhibitor is dispersed. Vanillin (4- hydroxy 3-methoxybenzaldehyde) compound is a preferred derivative of benzaldehyde that interacts with antimony present in the battery electrode plates to suppress hydrogen gas evolution. Vanillin dispersed throughout the porous structure exhibits strong antimony-suppression behavior and thereby maintains hydrogen evolution inhibitor properties during handling and manipulation of the battery separator.

Abstract translation: 电池隔板（116）包括在整个多孔结构体中分散苯甲醛衍生物作为析氢抑制剂，以改善含有电池隔膜的铅酸电池（100）的循环寿命。 所公开的电池隔板在安装在诸如高尔夫球车或地板洗涤器的电动车辆中的深循环电池中特别有用。 所公开的电池隔板的优选实施方案基于微孔聚乙烯隔板材料或具有分散氢析出抑制剂的多孔结构的吸收玻璃垫（AGM）隔板材料。 香草醛（4-羟基-3-甲氧基苯甲醛）化合物是与电池电极板中存在的锑相互作用的苯甲醛的优选衍生物，以抑制氢气逸出。 分散在整个多孔结构中的香草醛表现出强烈的锑抑制行为，从而在电池分离器的处理和操作过程中保持析氢抑制剂的性质。

公开(公告)号：WO2009023329A3

公开(公告)日：2009-02-19

申请号：PCT/US2008/063784

申请日：2008-05-15

Applicant: AMTEK RESEARCH INTERNATIONAL, LLC ,  LA, Chi, Thuong-le ,  WATERHOUSE, Robert, R. ,  PEKALA, Richard, W.

Inventor： LA, Chi, Thuong-le ,  WATERHOUSE, Robert, R. ,  PEKALA, Richard, W.

IPC: H01M2/14

Abstract: A microporous polyethylene battery separator material (212), for use in a flooded-cell type lead-acid battery, benefits from increased porosity, enhanced wettability, and exceptionally low electrical resistance when an electrolyte-soluble pore former is employed in the manufacturing process. The pore former (210) is soluble in electrolytic fluid and therefore dissolves in-situ in sulfuric acid during battery assembly. The dissolution of the pore former leaves behind additional, larger voids (220) in the separator material and thereby enhances ionic diffusion and improves battery performance.

公开(公告)号：WO2005001956A2

公开(公告)日：2005-01-06

申请号：PCT/US2004/017065

申请日：2004-05-28

Applicant: AMTEK RESEARCH INTERNATIONAL LLC ,  PEKALA, Richard, W.

Inventor： PEKALA, Richard, W.

IPC: H01M

CPC classification number: H01M2/162 ,  H01M2/1686 ,  H01M6/16 ,  H01M10/052 ,  H01M10/4235

Abstract: A battery separator (16) having a thermal shutdown mechanism and exhibiting excellent mechanical properties and low electrical resistance includes a water-scavenging and/or acid-scavenging material having reactive functional groups (2) that chemically react with water or acid in a battery to remove the water or acid and thereby improve battery performance. The battery separator (16) preferably includes a first polyolefin providing mechanical integrity and a second polyolefin including the water-scavenging or acid-scavenging reactive functional groups (2). The battery separator (16) is preferably a microporous film (6) including a polymer matrix (4) throughout which the water-scavenging or acid-scavenging material is dispersed.

Abstract translation: 具有热关闭机构并且具有优异的机械性能和低电阻的电池隔板（16）包括具有与电池中的水或酸发生化学反应的反应性官能团（2）的除水和/或酸清除材料， 去除水或酸，从而提高电池性能。 电池隔板（16）优选地包括提供机械完整性的第一聚烯烃和包含除水或酸清除反应性官能团（2）的第二聚烯烃。 电池隔板（16）优选是包含聚合物基质（4）的微孔膜（6），其中分散有除水或除酸材料。

公开(公告)号：WO2022133394A1

公开(公告)日：2022-06-23

申请号：PCT/US2021/072764

申请日：2021-12-06

Applicant: AMTEK RESEARCH INTERNATIONAL LLC

Inventor： WANDERA, Daniel ,  WATERHOUSE, Robert ,  WIMER, Andrew ,  PEKALA, Richard W. ,  HERON, Haley

IPC: H01M4/94 ,  H01M4/88 ,  H01M50/417 ,  H01M50/40 ,  H01M4/02

Abstract: This disclosure relates to free-standing, composite membranes that include an ion-selective polymer coating that covers at least one surface and partially penetrates into the pore structure of a polyolefin substrate. While the composite membranes do not have open, interconnected pores that connect each major surface, ion transport can take place through wetting of available pores and swelling of the ion-selective polymer coating accompanied by ion migration from one membrane surface to the opposite surface. Such composite membranes are useful for separating the anolyte and catholyte in a flow battery.