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    Grafted polysulfone membranes
    1.
    发明授权
    Grafted polysulfone membranes 有权

    公开(公告)号：US11618016B2

    公开(公告)日：2023-04-04

    申请号：US17503986

    申请日：2021-10-18

    申请人： ENTEGRIS, INC.

    发明人： Jad Ali Jaber ,  Alketa Gjoka ,  Saksatha Ly

    IPC分类号： B01J47/12 ,  B01D67/00 ,  B01D69/02 ,  B01D71/68 ,  B01D71/78 ,  B01J39/05 ,  B01J39/19 ,  B01J41/07 ,  B01J41/13 ,  C08G81/02 ,  C08J5/22 ,  C08J7/12

    摘要： A polysulfone membrane is modified so that monomers are wafted onto the surface of the membrane. The polysulfone membranes can be grafted by contacting the membrane with a grafting solution and exposing the membrane to electromagnetic radiation, typically within the ultraviolet portion of the spectrum. The monomers that are grafted are typically anionic or cationic. The grafted membranes can be used for filtering impurities, such as positively and negatively charged particles, from a liquid. Anionic membranes provide improved filtration of negatively charged impurities, while cationic membranes provide improved filtration of positively charged impurities.

    Atmospheric Pressure Microwave Plasma Treated Porous Membranes
    5.
    发明申请
    Atmospheric Pressure Microwave Plasma Treated Porous Membranes 有权
    大气压微波等离子体处理多孔膜

    公开(公告)号：US20140048476A1

    公开(公告)日：2014-02-20

    申请号：US14067887

    申请日：2013-10-30

    申请人： Entegris, Inc.

    发明人： Jijun Ge ,  Alketa Gjoka ,  Jieh-Hwa Shyu

    IPC分类号： B01D71/36

    CPC分类号： B01D71/36 ,  B01D67/009 ,  B01D69/02 ,  B01D71/32 ,  B01D2323/02

    摘要： Versions of the invention include compositions and methods for making them that include a polymeric porous membrane with one or more atmospheric pressure microwave plasma modified surfaces. The modified porous membrane is stable, non-dewetting, and retains its mechanical strength.

    摘要翻译： 本发明的版本包括用于制备它们的组合物和方法，其包括具有一个或多个大气压微波等离子体改性表面的聚合物多孔膜。 改性多孔膜是稳定的，不去湿，并保持其机械强度。

    Grafted polysulfone membranes
    6.
    发明授权
    Grafted polysulfone membranes 有权

    公开(公告)号：US11273436B2

    公开(公告)日：2022-03-15

    申请号：US15738969

    申请日：2015-11-19

    申请人： Entegris, Inc.

    发明人： Jad Ali Jaber ,  Alketa Gjoka ,  Saksatha Ly

    IPC分类号： B01J47/12 ,  B01D67/00 ,  B01D69/02 ,  B01D71/68 ,  B01D71/78 ,  B01J39/05 ,  B01J39/19 ,  B01J41/07 ,  B01J41/13 ,  C08G81/02 ,  C08J5/22 ,  C08J7/12

    摘要： A polysulfone membrane is modified so that monomers are grafted onto the surface of the membrane. The polysulfone membranes can be grafted by contacting the membrane with a grafting solution and exposing the membrane to electromagnetic radiation, typically within the ultraviolet portion of the spectrum. The monomers that are grafted are typically anionic or cationic. The grafted membranes can be used for filtering impurities, such as positively and negatively charged particles, from a liquid. Anionic membranes provide improved filtration of negatively charged impurities, while cationic membranes provide improved filtration of positively charged impurities.

    GRAFTED POLYSULFONE MEMBRANES
    7.
    发明申请
    GRAFTED POLYSULFONE MEMBRANES 有权

    公开(公告)号：US20220032282A1

    公开(公告)日：2022-02-03

    申请号：US17503986

    申请日：2021-10-18

    申请人： ENTEGRIS, INC.

    发明人： Jad Ali Jaber ,  Alketa Gjoka ,  Saksatha Ly

    IPC分类号： B01J47/12 ,  B01D67/00 ,  B01D69/02 ,  B01D71/68 ,  B01D71/78 ,  B01J39/05 ,  B01J39/19 ,  B01J41/07 ,  B01J41/13 ,  C08G81/02 ,  C08J5/22 ,  C08J7/12

    摘要： A polysulfone membrane is modified so that monomers are wafted onto the surface of the membrane. The polysulfone membranes can be grafted by contacting the membrane with a grafting solution and exposing the membrane to electromagnetic radiation, typically within the ultraviolet portion of the spectrum. The monomers that are grafted are typically anionic or cationic. The grafted membranes can be used for filtering impurities, such as positively and negatively charged particles, from a liquid. Anionic membranes provide improved filtration of negatively charged impurities, while cationic membranes provide improved filtration of positively charged impurities.

    Grafted ultra high molecular weight polyethylene microporous membranes
    8.
    发明授权
    Grafted ultra high molecular weight polyethylene microporous membranes 有权

    公开(公告)号：US10792620B2

    公开(公告)日：2020-10-06

    申请号：US15527094

    申请日：2015-11-19

    申请人： ENTEGRIS, INC.

    发明人： Jad Ali Jaber ,  Alketa Gjoka

    IPC分类号： B01D71/26 ,  B01D67/00 ,  B01D69/02 ,  B01D71/78

    摘要： Grafted, asymmetric, porous, ultra high molecular weight polyethylene membranes having a bubble point between about 5.38 bar (78 psi) and 11.03 bar (160 psi) are disclosed. Monomers are grafted to the porous polymeric membrane surfaces, the monomers having one or more of neutral groups or ion exchange groups grafted to one or more surfaces of the membrane. A combination of two photoinitiators can be used to graft the monomers to the asymmetric, porous, ultra high molecular weight membrane resulting in grafted microporous membranes that have water flow rates that are at least 50% of the water flow rate of an ungrafted, asymmetric, porous ultra high molecular weight polyethylene membrane. The grafted membrane also wets in water.