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    Caustic silica gel manufacturing method and gels made thereby
    1.
    发明授权
    Caustic silica gel manufacturing method and gels made thereby 失效
    苛性硅胶制造方法和由此制成的凝胶

    公开(公告)号：US07553416B2

    公开(公告)日：2009-06-30

    申请号：US11823350

    申请日：2007-06-27

    Applicant: Duen-Wu Hua ,  Michael C. Withiam ,  Francis R. W. Godwin ,  Fitzgerald A. Sinclair

    Inventor： Duen-Wu Hua ,  Michael C. Withiam ,  Francis R. W. Godwin ,  Fitzgerald A. Sinclair

    IPC: B01D24/00 ,  B01J29/06

    CPC classification number: C01B33/154 ,  B01J20/103 ,  C01B33/16

    Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like. Methods of production and use, as well as the novel gel materials themselves, particularly caustic and composite gels, are thus encompassed within this invention.

    Abstract translation: 提供了新的硅胶材料及其生产方法。 该方法本身需要一种在一锅法中将反应物混合在一起的方式，使得老化所需的时间降低，而不损害目标孔径生产的能力。 以这种方式，反应的pH驱使孔径显影，从而允许在昂贵的干燥/加热步骤方面遵循更有效的方法，如果不是完全减少时间的话。 此外，在一个实施方案中，所得凝胶材料表现出一定的孔径最小值，同时表现出迄今为止不可用的柔软程度。 因此，这种新方法不仅在硅胶制造中更有效，而且所得到的材料也是完全新颖的。 由其制成的凝胶材料可以用于各种不同的最终用途，例如烹饪油过滤，柔软的皮肤清洁剂，牙科磨料等。 因此，本发明包括生产和使用方法，以及新颖的凝胶材料本身，特别是苛性碱和复合凝胶。

    Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materials
    2.
    发明授权
    Air filtration media comprising oxidizing agent-treated metal-doped silicon-based gel and zeolite materials 有权

    公开(公告)号：US07510602B2

    公开(公告)日：2009-03-31

    申请号：US11481613

    申请日：2006-07-06

    Applicant: David K. Friday ,  Fitzgerald A. Sinclair ,  Michael C. Withiam

    Inventor： David K. Friday ,  Fitzgerald A. Sinclair ,  Michael C. Withiam

    IPC: B01D53/02 ,  B01J20/00

    Abstract: An environmental control for use in air handling systems that are required to provide highly effective filtration of noxious gases is provided. In one embodiment, a filtration system utilizes a novel combination of at least one metal-doped silica-based gel and zeolite materials to trap and/or modify, and remove such undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment. The gel component exhibits specific porosity requirements and density measurements; the zeolite component is generally acidic and is preferably not reacted with any salts or like substances. The novel combination of such gels and zeolites permits highly effective noxious gas filtration over a wide range of known toxic industrial chemicals such that excellent breakthrough results are attained, particularly in comparison with prior media filtration products. Also included is the presence of an oxidizing agent on the gel materials to aid in capturing nitrogen dioxide and preventing conversion of such a product to NO. Methods of using and the application within specific filter apparatuses are also encompassed within this invention.

    Caustic silica gel manufacturing method and gels made thereby
    3.
    发明申请
    Caustic silica gel manufacturing method and gels made thereby 失效

    公开(公告)号：US20090071895A1

    公开(公告)日：2009-03-19

    申请号：US11823350

    申请日：2007-06-27

    Applicant: Duen-Wu Hua ,  Michael C. Withiam ,  Francis R. W. Godwin ,  Fitzgerald A. Sinclair

    Inventor： Duen-Wu Hua ,  Michael C. Withiam ,  Francis R. W. Godwin ,  Fitzgerald A. Sinclair

    IPC: B01D39/14 ,  C01B33/14

    CPC classification number: C01B33/154 ,  B01J20/103 ,  C01B33/16

    Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like. Methods of production and use, as well as the novel gel materials themselves, particularly caustic and composite gels, are thus encompassed within this invention.

    Air filtration media comprising metal-doped silicon-based gel materials with pre-reduced oxidizing agents
    4.
    发明申请
    Air filtration media comprising metal-doped silicon-based gel materials with pre-reduced oxidizing agents 审中-公开
    空气过滤介质包括具有预还原氧化剂的掺杂有金属的硅基凝胶材料

    公开(公告)号：US20120121471A1

    公开(公告)日：2012-05-17

    申请号：US11823265

    申请日：2007-06-27

    Applicant: Terry W. Nassivera ,  Michael C. Withiam ,  Fitzgerald A. Sinclair ,  Ruth G. Heffes

    Inventor： Terry W. Nassivera ,  Michael C. Withiam ,  Fitzgerald A. Sinclair ,  Ruth G. Heffes

    IPC: A61L9/00

    CPC classification number: A61L9/048 ,  A61L2209/14

    Abstract: The present invention relates generally to an environmental control unit for use in air handling systems that provides highly effective filtration of noxious gases (such as ammonia). Such a filtration system utilizes novel metal-doped silica-based gels to trap and remove such undesirable gases from an enclosed environment. Such gels exhibit specific porosity requirements and density measurements. Furthermore, in order for proper metal doping to take effect, such gels must be treated while in a wet state. The combination of these particular properties and metal dopant permits highly effective noxious gas filtration such that uptake and breakthrough results are attained, particularly in comparison with prior silica gel filtration products. Also included is the presence of an oxidizing agent (either in reduced or pre-deuced form) to aid in capturing nitrogen dioxide and preventing conversion of such a product to NO. Methods of using and specific filter apparatuses are also encompassed within this invention.

    Abstract translation: 本发明一般涉及一种用于空气处理系统的环境控制单元，其提供对有害气体（例如氨）的高效过滤。 这种过滤系统利用新颖的金属掺杂的二氧化硅基凝胶来从封闭的环境中捕集和去除这些不期望的气体。 这种凝胶表现出特定的孔隙率要求和密度测量。 此外，为了适当的金属掺杂生效，这种凝胶必须在潮湿状态下进行处理。 这些特定性质和金属掺杂剂的组合允许高效有害的气体过滤，从而获得吸收和突破性结果，特别是与现有硅胶过滤产物相比。 还包括存在氧化剂（以还原或预脱胶形式），以帮助捕获二氧化氮并防止这种产物转化为NO。 使用方法和特定的过滤装置也包括在本发明中。

    Silica gel manufacturing method and gels made thereby
    5.
    发明授权
    Silica gel manufacturing method and gels made thereby 有权
    硅胶制造方法和由此制成的凝胶

    公开(公告)号：US07803343B2

    公开(公告)日：2010-09-28

    申请号：US11823436

    申请日：2007-06-27

    Applicant: Duen-Wu Hua ,  Michael C. Withiam ,  Francis R. W. Godwin ,  Fitzgerald A. Sinclair

    Inventor： Duen-Wu Hua ,  Michael C. Withiam ,  Francis R. W. Godwin ,  Fitzgerald A. Sinclair

    IPC: C01B33/154 ,  C01B33/14 ,  C01B33/152 ,  C01B33/157

    CPC classification number: C01B33/143 ,  C01B33/158 ,  C01B33/187 ,  C11B3/10

    Abstract: New silica gel materials and novel methods of producing such are provided. The method itself entails a manner of mixing the reactants together in a one-pot process such that the time required for aging is reduced without compromising the ability to target pore size production. In such a way, the pH of the reaction drives pore size development, thereby permitting a more efficient process to be followed in terms of expensive drying/heating steps being reduced timewise, if not altogether. Furthermore, in one embodiment, the resultant gel materials exhibit a certain pore size minimum while simultaneously exhibiting a degree of softness heretofore unavailable. As such, not only is this novel method more efficient in silica gel manufacture, but the resultant materials are completely novel as well. The gel materials made therefrom may be utilized in a variety of different end uses, such as cooking oil filtration, soft skin cleansers, dental abrasives, and the like. Methods of production and use, as well as the novel gel materials themselves, particularly caustic and composite gels, are thus encompassed within this invention.

    Abstract translation: 提供了新的硅胶材料及其生产方法。 该方法本身需要一种在一锅法中将反应物混合在一起的方式，使得老化所需的时间降低，而不损害目标孔径生产的能力。 以这种方式，反应的pH驱使孔径显影，从而允许在昂贵的干燥/加热步骤方面遵循更有效的方法，如果不是完全减少时间的话。 此外，在一个实施方案中，所得凝胶材料表现出一定的孔径最小值，同时表现出迄今为止不可用的柔软程度。 因此，这种新方法不仅在硅胶制造中更有效，而且所得到的材料也是完全新颖的。 由其制成的凝胶材料可以用于各种不同的最终用途，例如烹饪油过滤，柔软的皮肤清洁剂，牙科磨料等。 因此，本发明包括生产和使用方法，以及新颖的凝胶材料本身，特别是苛性碱和复合凝胶。

    Attrition resistant hardened zeolite materials for air filtration media
    9.
    发明申请
    Attrition resistant hardened zeolite materials for air filtration media 审中-公开
    用于空气过滤介质的耐磨硬化沸石材料

    公开(公告)号：US20120118160A1

    公开(公告)日：2012-05-17

    申请号：US11823263

    申请日：2007-06-27

    Applicant: Ruth G. Heffes ,  Fitzgerald A. Sinclair ,  Michael C. Withiam ,  Terry W. Nassivera

    Inventor： Ruth G. Heffes ,  Fitzgerald A. Sinclair ,  Michael C. Withiam ,  Terry W. Nassivera

    IPC: B01D53/02 ,  B29C47/00

    CPC classification number: B01D53/02 ,  B01D2253/108 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2257/70 ,  B01D2258/06 ,  B01J20/08 ,  B01J20/103 ,  B01J20/12 ,  B01J20/18 ,  B01J20/183 ,  B01J20/20 ,  B01J20/2803 ,  B01J20/28052 ,  B01J20/3042 ,  B01J2220/42 ,  Y02C20/10

    Abstract: Environmental control in air handling systems that are required to provide highly effective filtration of noxious gases particularly within filter canisters that are ultrasonically welded enclosures is provided. In one embodiment, a filtration system utilizes a novel zeolite material that has been hardened to withstand ultrasonic welding conditions in order to reduce the propensity of such a material to destabilize and/or dust. Such a hardened zeolite thus enables for trapping and removal of certain undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment, particularly in combination with metal-doped silica gel materials. Such a hardened zeolite is acidic in nature and not reacted with any salts or like substances and, as it remains in a hardened state upon inclusion within a welded filter device, the filter medium itself permits proper throughput with little to no dusting, thereby providing proper utilization and reliability for such a gas removal purpose. Methods of using and the application within specific filter apparatuses are also encompassed within this invention.

    Abstract translation: 提供了在空气处理系统中的环境控制，其需要提供对有害气体的高效过滤，特别是在超声波焊接的外壳的过滤筒内。 在一个实施方案中，过滤系统利用已被硬化以经受超声波焊接条件的新型沸石材料，以便降低这种材料不稳定和/或粉尘的倾向。 因此，这样的硬化沸石能够从封闭的环境，特别是与金属掺杂的硅胶材料组合，捕获和去除某些不需要的气体（例如氨，环氧乙烷，甲醛和一氧化二氮）。 这种硬化的沸石本质上是酸性的，并且不与任何盐或类似物质反应，并且当它包含在焊接的过滤装置中时它保持在硬化状态，过滤介质本身允许适当的产量，很少甚至没有除尘，从而提供适当的 这种气体清除目的的利用和可靠性。 在特定的过滤装置内使用和应用的方法也包括在本发明中。

    Filtration Media for the Removal of Basic Molecular Contaminants for Use in a Clean Environment
    10.
    发明申请
    Filtration Media for the Removal of Basic Molecular Contaminants for Use in a Clean Environment 审中-公开
    用于去除在清洁环境中使用的基本分子污染物的过滤介质

    公开(公告)号：US20090211453A1

    公开(公告)日：2009-08-27

    申请号：US12037673

    申请日：2008-02-26

    Applicant: Terry W. Nassivera ,  Fitzgerald A. Sinclair ,  Michael S. Darsillo ,  Ruth G. Heffes

    Inventor： Terry W. Nassivera ,  Fitzgerald A. Sinclair ,  Michael S. Darsillo ,  Ruth G. Heffes

    IPC: B01D53/14

    CPC classification number: B01D53/58 ,  B01D2253/106 ,  B01D2253/306 ,  B01D2253/308 ,  B01D2253/31 ,  B01D2253/311 ,  B01D2259/4508 ,  B01D2259/4541 ,  B01D2259/4566 ,  B01D2259/4583 ,  B01J20/103 ,  B01J20/28061 ,  B01J20/28064 ,  B01J20/28071 ,  Y02A50/2346

    Abstract: Novel acid-impregnated silica materials for use as environmental controls in air handling systems where highly efficient removal of ammonia and volatile amines from gaseous streams is required (e.g. clean rooms) are provided. Such silicas exhibit specific porosity and density measurements to provide a satisfactory support for an acid impregnant incorporated subsequent to initial solid silica particle production, in order to provide effective ammonia bonding sites. The combination of the silica support properties and the acid impregnant permits highly effective ammonia (or volatile amine) gas removal, resulting in excellent noxious gas removal efficiencies and capacities, particularly in comparison with prior media filtration products. Methods of using such acid-impregnated silica filter media and specific filter apparatuses are also encompassed within this invention.

    Abstract translation: 提供了用于空气处理系统中作为环境控制的新型酸浸二氧化硅材料，其中需要从气流高效除去氨和挥发性胺（例如洁净室）。 这样的二氧化硅表现出特定的孔隙率和密度测量结果，以便为初始固体二氧化硅颗粒生产之后掺入的酸浸渍剂提供令人满意的支持，以提供有效的氨结合位点。 二氧化硅载体性质和酸浸渍剂的组合允许高度有效的氨（或挥发性胺）气体去除，导致优异的有害气体去除效率和容量，特别是与现有的介质过滤产物相比。 使用这种酸浸硅石过滤介质和特定过滤装置的方法也包括在本发明内。

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