TRANSIENTLY POROUS CRYOGEL COMPOSITE STRUCTURES FOR FAST CARBON DIOXIDE CAPTURE FROM AIR FOR USEFUL CHEMICAL PRODUCTS

    公开(公告)号:US20240382932A1

    公开(公告)日:2024-11-21

    申请号:US18667691

    申请日:2024-05-17

    Abstract: A superporous material comprises: a crosslinked linear polyethyleneimine (PEI) microgel comprising the reaction product of linear polyethyleneimine and a crosslinker; an embedded body; and amine functional groups, wherein the embedded body and amine functional groups are available for CO2 association. There is disclosed a method of removing CO2 from a fluidic waste stream, wherein the method comprises contacting the waste stream with the superporous material, wherein the CO2 from the fluidic waste stream bonds to an amine functional group in the superporous material. There is also disclosed a method of removing CO2 from a fluidic waste stream, wherein the method comprises contacting the waste stream with the catalytic superporous material and a flowing gas, and converting CO2 to at least one of methanol, ethanol, carbonic acid, and methane.

    ANTIMICROBIAL COMPOSITIONS
    5.
    发明公开

    公开(公告)号:US20240043618A1

    公开(公告)日:2024-02-08

    申请号:US18380965

    申请日:2023-10-17

    CPC classification number: C08G73/0273 C08G73/0246 A61P31/04 A01P1/00

    Abstract: This disclosure relates to antimicrobial compositions, and more particularly to treatment of surfaces (e.g., face masks) for the reduction or prevention of transmission of microbes (e.g., bacteria, fungus, and/or viruses). In some embodiments, the compositions comprise a cationic polymer selected from the group consisting of: a polydiallyldimethylammonium salt, a polyethyleneimine salt, a polydiallyldimethylammonium with different counter ions, a chemically modified polyethyleneimine salt, or a combination thereof.

    SURFACE MODIFICATION OF POLYMERIC MATERIALS
    6.
    发明公开

    公开(公告)号:US20230312853A1

    公开(公告)日:2023-10-05

    申请号:US18174724

    申请日:2023-02-27

    CPC classification number: C08J7/18 C08J2333/12 C08J2369/00

    Abstract: The disclosure provides an article comprising a substrate having a surface including (i) a matrix of an optically transparent polymeric material having a first surface functionality, and (ii) at least one plasma-treated surface region comprising a portion of the surface, wherein each surface region comprises a second surface functionality, and wherein the first surface functionality and the second surface functionality are different The disclosure also provides a method for forming an article, the method comprising: (a) providing a substrate having a surface including an optically transparent polymeric material, (b) contacting the surface with a first plasma to create at least one plasma-treated surface region comprising a portion of the surface, each plasma-treated surface region having a first surface functionality, and (c) contacting each plasma-treated surface region with a second plasma to create a second surface functionality.

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