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    OSTOMY BAG WITH A SLIPPERY SURFACE
    11.
    发明申请
    OSTOMY BAG WITH A SLIPPERY SURFACE 有权

    公开(公告)号：US20210052784A1

    公开(公告)日：2021-02-25

    申请号：US17083863

    申请日：2020-10-29

    Applicant: The Penn State Research Foundation

    Inventor： Tak-Sing Wong ,  Jing Wang ,  Birgitt Boschitsch

    IPC: A61L31/14 ,  A61F5/445 ,  A61L31/10 ,  C08G77/24

    Abstract: An ostomy bag having a polymeric surface is prepared by forming a polyphenol layer on the surface, forming a silanization layer on the polyphenol layer and forming a lubricant layer entrenched over the silanization layer. The silanization layer is polymerized from a solution including: (i) a polymerizable silane or siloxane or combination thereof; (ii) a solvent; and (iii) an acid catalyst. The silanization layer comprises an array of silanes or siloxanes or a combination thereof each having ends anchored to the polyphenol layer and opposite ends extending away from the polyphenol layer.

    LIQUIDS AND VISCOELASTIC MATERIAL REPELLENT AND ANTI-BIOFOULING COATINGS
    14.
    发明申请
    LIQUIDS AND VISCOELASTIC MATERIAL REPELLENT AND ANTI-BIOFOULING COATINGS 有权

    公开(公告)号：US20210222014A1

    公开(公告)日：2021-07-22

    申请号：US17202512

    申请日：2021-03-16

    Applicant: The Penn State Research Foundation

    Inventor： Tak-Sing Wong ,  Jing WANG

    IPC: C09D5/16 ,  C09D183/04 ,  B32B27/28 ,  B32B7/02

    Abstract: A process for preparing a repellant smooth surface includes applying a coating composition onto a smooth surface of a substrate having hydroxyl functional groups thereon and an average roughness Ra of less than 4 μm. The coating composition includes: (i) a polymerizable silane or siloxane or both selected from the group consisting of dimethyldimethoxysilane, dimethoxy-methyl(3,3,3-trifluoropropyl)silane, dimethoxy(methyl)octylsilane, diethoxydimethylsilane, (ii) a solvent and (iii) an acid catalyst. The process further includes polymerizing the silane or siloxane or both from the hydroxyl functional groups on the smooth surface of the substrate to form a chemical layer of graft polymers having ends anchored to the smooth surface and applying a lubricant coating over the formed chemical layer to adhere and maintain the lubricant on the smooth surface and form a lubricant-entrenched smooth surface as the repellant smooth surface.

    Liquids and viscoelastic material repellent and anti-biofouling coatings
    16.
    发明授权
    Liquids and viscoelastic material repellent and anti-biofouling coatings 有权

    公开(公告)号：US10968353B2

    公开(公告)日：2021-04-06

    申请号：US16113342

    申请日：2018-08-27

    Applicant: The Penn State Research Foundation

    Inventor： Tak-Sing Wong ,  Jing Wang

    IPC: C09D5/16 ,  C09D183/04 ,  B32B27/28 ,  B32B7/02 ,  E03D1/00 ,  E03D13/00

    Abstract: A coated smooth surface of a substrate repels liquids and viscoelastic materials and can have anti-staining and anti-biofouling properties. The smooth surface can be coated by applying a chemical layer on the surface and a lubricant. Such coated surfaces are useful for use in toilets, urinals, or other devices for the processing of liquids and viscoelastic materials such as solid or semi-solid metabolic waste of human digestive system. Such coated surfaces can also be applied to windows for buildings or vehicles such as automobiles or camera lenses to repel liquids (e.g., rain), ice, frost, insect residues, and birds' feces.

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