1.
    发明专利
    失效

    公开(公告)号:JPH11503972A

    公开(公告)日:1999-04-06

    申请号:JP52931097

    申请日:1996-06-17

    Abstract: This invention relates to advanced composite filtration media comprising (i) a functional filtration component and (ii) a matrix component, wherein said matrix component has a softening point temperature less than the softening point temperature of said functional filtration component, and wherein said functional filtration component is intimately bound to said matrix component; and methods for preparing and using same. More particularly, this invention pertains to advanced composite filter media and advanced composite filter media products comprised of a functional filtration component, such as a biogenic silica product (e.g., diatomite) or a natural glass product (e.g., expanded perlite) which bears a distinguishing porous and intricate structure suitable for filtration, which is thermally sintered to a matrix component, such as an engineering polymer (e.g., glasses, crystalline minerals, thermoplastics, and metals) that has a softening temperature below that of the functional filtration component. The advanced composite filtration media of the present invention offer unique properties such as increased permeability, low centrifuged wet density, low cristobalite content, and uniquely shaped particles (e.g., fibers).

    IMPROVED COMPOSITE FILTER MEDIUM
    2.
    发明专利

    公开(公告)号:JPH1024205A

    公开(公告)日:1998-01-27

    申请号:JP12208696

    申请日:1996-05-16

    Abstract: PROBLEM TO BE SOLVED: To improve efficiency and profitability by using a matrix component having a softening point below that of a functional filter component and closely bonding the functional filter component with the matrix component in a composite filter medium containing the functional filter component and the matrix component. SOLUTION: The composite filter medium is prepared from the functional filter component and the matrix component and at this time, one having the softening point below that of the functional filter component is used as the matrix component. And the functional filter component using a biological silica and/or natural glass or the like is closely bonded with the matrix component. As a result, filtration efficiency higher than that of a simple mixture of the functional filter component with the matrix component (preferably higher than 5% or above is attained and the median of particle diameter larger than weight average of the median of the particle diameter of the functional filter component and the median of the particle diameter of the matrix component is obtained in the composite filter medium.

    FILTERABLE COMPOSITE ADSORBENTS
    3.
    发明申请
    FILTERABLE COMPOSITE ADSORBENTS 审中-公开
    可过滤复合吸附剂

    公开(公告)号:WO9830324A3

    公开(公告)日:1998-11-05

    申请号:PCT/US9723571

    申请日:1997-12-31

    Abstract: The invention relates to filterable composite adsorbents comprising one or more adsorbent components and one or more filtration components, and methods for preparing and using same. More particularly, this invention pertains to filterable composite adsorbents and filterable composite adsorbent products which are suitable for use in filtration applications, and which comprise one or more microparticulate or colloidal adsorbent components selected from the group consisting of silica gel, fumed silica, neutral clay, alkaline clay, zeolite, solid catalyst, alumina, adsorbent polymer, alkaline earth silicate hydrate, and combinations thereof, which bear the property of adsorption, which are intimately bound to one or more functional filtration components selected from the group consisting of biogenic silica, natural glass (e.g., expanded perlite, pumice, expanded pumice, pumicite, expanded obsidian, expanded volcanic ash), buoyant glass, buoyant polymer, cellulose, and combinations thereof, which bear a distinguishing porous and intricate structure and buoyancy suitable for filtration.

    Abstract translation: 本发明涉及包含一种或多种吸附剂组分和一种或多种过滤组分的可过滤复合吸附剂及其制备和使用方法。 更具体地说,本发明涉及适用于过滤应用的可过滤复合吸附剂和可过滤复合吸附剂产品,其包含一种或多种选自硅胶,气相二氧化硅,中性粘土, 碱性粘土,沸石,固体催化剂,氧化铝,吸附剂聚合物,碱土金属硅酸盐水合物及其组合,其具有吸附性质,其与一种或多种选自生物二氧化硅,天然 玻璃(例如,膨胀珍珠岩,浮石,膨胀浮石,浮石,黑曜岩膨胀,膨胀的火山灰),浮力玻璃,浮力聚合物,纤维素,以及它们的组合,其中承担一个显着的多孔和复杂结构和浮力适于过滤。

    7.
    发明专利
    未知

    公开(公告)号:NO20030575L

    公开(公告)日:2003-03-12

    申请号:NO20030575

    申请日:2003-02-05

    Abstract: Expanded perlite products having controlled particle size distribution, methods of producing the expanded perlite products, and methods of use thereof are provided. The expanded perlite product has, for example, a low ratio of standard deviation of particle size distribution to median particle size (for example, less than 0.63) and low median particle size (for example, less than 50 microns). The expanded perlite product may be used in a variety of applications including filter applications.

    8.
    发明专利
    未知

    公开(公告)号:DE69617899T2

    公开(公告)日:2002-04-25

    申请号:DE69617899

    申请日:1996-04-23

    Abstract: This invention relates to advanced composite filtration media comprising (i) a functional filtration component and (ii) a matrix component, wherein said matrix component has a softening point temperature less than the softening point temperature of said functional filtration component, and wherein said functional filtration component is intimately bound to said matrix component; and methods for preparing and using same. More particularly, this invention pertains to advanced composite filter media and advanced composite filter media products comprised of a functional filtration component, such as a biogenic silica product (e.g., diatomite) or a natural glass product (e.g., expanded perlite) which bears a distinguishing porous and intricate structure suitable for filtration, which is thermally sintered to a matrix component, such as an engineering polymer (e.g., glasses, crystalline minerals, thermoplastics, and metals) that has a softening temperature below that of the functional filtration component. The advanced composite filtration media of the present invention offer unique properties such as increased permeability, low centrifuged wet density, low cristobalite content, and uniquely shaped particles (e.g., fibers).

    COMPOSITE FILTRATION MEDIA
    9.
    发明专利

    公开(公告)号:CA2241946C

    公开(公告)日:2001-10-30

    申请号:CA2241946

    申请日:1996-06-17

    Abstract: This invention relates to composite filtration media comprising (i) a functional filtration component and (ii) a matrix component, wherein said matrix component has a softening point temperature less than the softening point temperature of said functional filtration component, and wherein said functional filtration component is intimately bound to said matrix component ; and methods for preparing and using same. More particularly, this invention pertains to composite filter media and composite filter media products comprised of a functional filtration component, such as a biogenic silica product (e.g., diatomite) or a natural glass product (e.g., expanded perlite ) which bears a distinguishing porous and intricate structure suitable for filtration, which is thermally sintered to a matrix component, such as an engineering polymer (e.g., glasses, crystalline minerals, thermoplastics, an d metals) that has a softening temperature below that of the functional filtration component. The composite filtration media of the present inventio n offer unique properties such as increased permeability, low centrifuged wet density, low cristobalite content, and uniquely shaped particles (e.g., fibers).

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