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170 条记录 (耗时 0.018 秒)

    Filter paper
    1.
    发明授权
    Filter paper 有权

    公开(公告)号：US12110636B2

    公开(公告)日：2024-10-08

    申请号：US17043486

    申请日：2019-03-04

    申请人： DELFORTGROUP AG

    发明人： Dieter Möhring ,  Guido Reiter

    IPC分类号： D21H27/08 ,  D21H13/24 ,  D21H13/26 ,  D21H17/67

    CPC分类号： D21H27/08 ,  D21H17/675 ,  D21H13/24 ,  D21H13/26

    摘要： Described herein is a filter paper for the production of an aqueous extract, comprising softwood pulp, which has the following properties: a basis weight of more than 9.0 g/m2 and less than 13.5 g/m2, a density of more than 280 kg/m3 and less than 350 kg/m3, a roughness of more than 700 ml/min and less than 1300 ml/min, a bending resistance in the machine direction of more than 50 mN and less than 75 mN, and an air permeability of more than 17000 cm/(min·kPa) and less than 26000 cm/(min·kPa), wherein the filter paper is either free from abacá fibers and sisal fibers or, if abacá fibers and/or sisal fibers are present, taken together they make up less than 20% of the paper mass.

    Method for Making Air Purifying Paper Goods
    5.
    发明申请
    Method for Making Air Purifying Paper Goods 有权

    公开(公告)号：US20220074145A1

    公开(公告)日：2022-03-10

    申请号：US17472195

    申请日：2021-09-10

    申请人： Leonard Tim Sperry, III

    发明人： Leonard Tim Sperry, III

    IPC分类号： D21H27/08 ,  D21H17/68 ,  D21H21/22 ,  B01J20/24 ,  B01J20/18 ,  B01J20/28 ,  B01J20/30 ,  B01D53/02

    摘要： A method for making air purifying paper goods uses wood chips and an air purification compound. The air purification compound is preferably a zeolite compound used to extract VOCs from an environment. The method begins by processing the wood chips into a raw pulp slurry with a pulping system. The method continues by separating organic fibers from lignin compounds in the raw pulp slurry with a processing system. The method continues by mixing the air-purification compound into the organic fibers to form a paperboard pulp mix with a mixing system. The mixing system is capable of incorporating the air purification compound into the organic fibers at any point during any secondary processing operation required to transition the organic fibers into the paperboard pulp mix. The method continues by manufacturing at least one paper good from the paperboard pulp mix with a manufacturing system.

    CHEMICAL DETECTION OF SUBSTANCES BY UTILIZING A SAMPLE MEDIUM IMPREGNATED WITH CHEMICALS
    7.
    发明申请
    CHEMICAL DETECTION OF SUBSTANCES BY UTILIZING A SAMPLE MEDIUM IMPREGNATED WITH CHEMICALS 审中-公开

    公开(公告)号：US20200292512A1

    公开(公告)日：2020-09-17

    申请号：US16884638

    申请日：2020-05-27

    申请人： DetectaChem, Inc.

    发明人： Travis Kisner

    IPC分类号： G01N31/22 ,  D21H19/14 ,  D21H27/08 ,  G01N21/78

    摘要： In some embodiments, the present disclosure pertains to substance detecting assemblies that include: (1) a sample medium (e.g., filter paper); and (2) a solid test chemical (e.g., zinc) impregnated with the sample medium. In some embodiments, the present disclosure pertains to methods of making an assembly for detecting a substance by: (1) providing a sample medium; (2) providing a solid test chemical; and (3) impregnating the sample medium with the solid test chemical. In further embodiments, the present disclosure pertains to methods for detecting a substance by: (1) collecting the substance on a sample medium that is impregnated with a solid test chemical; and (2) initiating a reaction of the substance with the solid test chemical on the sample medium to generate a color that corresponds to the substance. In some embodiments, the sample medium is then inserted into a chemical detection unit for the detection of the substance.

    Chemical detection of substances by utilizing a sample medium impregnated with solid test chemicals
    8.
    发明授权
    Chemical detection of substances by utilizing a sample medium impregnated with solid test chemicals 有权

    公开(公告)号：US10705062B2

    公开(公告)日：2020-07-07

    申请号：US16233364

    申请日：2018-12-27

    申请人： DetectaChem LLC

    发明人： Travis Kisner

    IPC分类号： G01N21/78 ,  G01N31/22 ,  D21H19/14 ,  D21H27/08

    摘要： In some embodiments, the present disclosure pertains to substance detecting assemblies that include: (1) a sample medium (e.g., filter paper); and (2) a solid test chemical (e.g., zinc) impregnated with the sample medium. In some embodiments, the present disclosure pertains to methods of making an assembly for detecting a substance by: (1) providing a sample medium; (2) providing a solid test chemical; and (3) impregnating the sample medium with the solid test chemical. In further embodiments, the present disclosure pertains to methods for detecting a substance by: (1) collecting the substance on a sample medium that is impregnated with a solid test chemical; and (2) initiating a reaction of the substance with the solid test chemical on the sample medium to generate a color that corresponds to the substance. In some embodiments, the sample medium is then inserted into a chemical detection unit for the detection of the substance.

    Multilayer filter medium for filter, method for producing the same, and air filter
    10.
    发明授权
    Multilayer filter medium for filter, method for producing the same, and air filter 有权

    公开(公告)号：US10252201B2

    公开(公告)日：2019-04-09

    申请号：US15034714

    申请日：2015-01-27

    申请人： Teijin Limited

    发明人： Mie Kamiyama

    IPC分类号： B01D39/16 ,  B01D46/52 ,  D21H27/30 ,  D21H15/02 ,  D21H27/08

    摘要： The prevent invention addresses the problem of providing a multilayer filter medium for a filter having low pressure loss and high collection efficiency, a method for producing the same, and an air filter not only having low pressure loss and high collection efficiency but also being excellent in pleatability and wind-pressure deformation resistance. The multilayer filter medium for a filter as a means for resolution is obtained by laminating a wet-laid nonwoven fabric layer (2) on a wet-laid nonwoven fabric layer (1). The wet-laid nonwoven fabric layer (1) includes a nanofiber A having a single-fiber diameter within a range of 200 to 800 nm and a fiber length within a range of 0.4 to 0.7 mm, a fiber B having a greater single-fiber diameter than the nanofiber A, and a binder fiber C. The wet-laid nonwoven fabric layer (2) includes a nanofiber A having a single-fiber diameter within a range of 200 to 800 nm and a fiber length within a range of 0.4 to 0.7 mm, a fiber B having a greater single-fiber diameter than the nanofiber A, and a binder fiber C, the weight proportion of the nanofiber fiber A being greater than in the wet-laid nonwoven fabric layer (1).