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公开(公告)号：US11618016B2
公开(公告)日：2023-04-04
申请号：US17503986
申请日：2021-10-18
Applicant: ENTEGRIS, INC.
Inventor： Jad Ali Jaber , Alketa Gjoka , Saksatha Ly
IPC: B01J47/12 , B01D67/00 , B01D69/02 , B01D71/68 , B01D71/78 , B01J39/05 , B01J39/19 , B01J41/07 , B01J41/13 , C08G81/02 , C08J5/22 , C08J7/12
Abstract: 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.
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公开(公告)号：US10150087B2
公开(公告)日：2018-12-11
申请号：US14824698
申请日：2015-08-12
Applicant: Entegris, Inc.
Inventor： Saksatha Ly , Wai Ming Choi
Abstract: A purifier for removing metal, such as chromium, from an organic solvent is disclosed. The purifier comprises a housing having a fluid inlet and a fluid outlet in fluid communication with the fluid inlet; a volume of ion-exchange resin disposed within the housing downstream of the fluid inlet; and a filtration member downstream of the volume of ion-exchange resin, the filtration member comprising at least one microporous membrane having a substantially neutral surface and a microporous polytetrafluoroethylene membrane downstream of the at least one microporous membrane. A method for removing metal, including chromium, from an organic solvent using a purifier of the invention is also disclosed.
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Patent Agency Ranking
公开(公告)号：US11918990B2
公开(公告)日：2024-03-05
申请号：US17350970
申请日：2021-06-17
Applicant: ENTEGRIS, INC.
Inventor： Maybelle Woo , Jad A. Jaber , Saksatha Ly , Jeffrey E. Townley , James Hamzik , Justin Brewster
IPC: B01J47/014 , B01D39/16 , B01J47/12 , C08F255/02 , C08J5/22
CPC classification number: B01J47/014 , B01D39/1692 , B01J47/12 , C08F255/02 , C08J5/2243 , B01D2201/184
Abstract: Described are ion-exchange membranes that include a porous polymeric membrane and imidazole ion-exchange groups at surfaces of the membrane; ion-exchange membranes and filters that contain the ion-exchange membranes; and methods of using the ion-exchange membranes and filters for separating charged biological molecule from a liquid.
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公开(公告)号：US11413586B2
公开(公告)日：2022-08-16
申请号：US16381442
申请日：2019-04-11
Applicant: ENTEGRIS, INC.
Inventor： Jad Ali Jaber , Kwok-Shun Cheng , Saksatha Ly
Abstract: Described are filter membranes coated with a polyamide, filters and filter cartridges that include the filter membranes, and methods of using and making the filter membranes.
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公开(公告)号：US11273436B2
公开(公告)日：2022-03-15
申请号：US15738969
申请日：2015-11-19
Applicant: Entegris, Inc.
Inventor： Jad Ali Jaber , Alketa Gjoka , Saksatha Ly
IPC: B01J47/12 , B01D67/00 , B01D69/02 , B01D71/68 , B01D71/78 , B01J39/05 , B01J39/19 , B01J41/07 , B01J41/13 , C08G81/02 , C08J5/22 , C08J7/12
Abstract: 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.
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公开(公告)号：US20220032282A1
公开(公告)日：2022-02-03
申请号：US17503986
申请日：2021-10-18
Applicant: ENTEGRIS, INC.
Inventor： Jad Ali Jaber , Alketa Gjoka , Saksatha Ly
IPC: B01J47/12 , B01D67/00 , B01D69/02 , B01D71/68 , B01D71/78 , B01J39/05 , B01J39/19 , B01J41/07 , B01J41/13 , C08G81/02 , C08J5/22 , C08J7/12
Abstract: 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.
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公开(公告)号：US20150343391A1
公开(公告)日：2015-12-03
申请号：US14824698
申请日：2015-08-12
Applicant: Entegris, Inc.
Inventor： Saksatha Ly , Wai Ming Choi
CPC classification number: B01D71/32 , B01D15/00 , B01D15/361 , B01D63/14 , B01D69/12 , B01D2313/20 , B01D2313/40 , B01D2313/90 , B01D2325/42 , B01J47/12 , C07C29/76
Abstract: A purifier for removing metal, such as chromium, from an organic solvent is disclosed. The purifier comprises a housing having a fluid inlet and a fluid outlet in fluid communication with the fluid inlet; a volume of ion-exchange resin disposed within the housing downstream of the fluid inlet; and a filtration member downstream of the volume of ion-exchange resin, the filtration member comprising at least one microporous membrane having a substantially neutral surface and a microporous polytetrafluoroethylene membrane downstream of the at least one microporous membrane. A method for removing metal, including chromium, from an organic solvent using a purifier of the invention is also disclosed.
Abstract translation: 公开了一种用于从有机溶剂中除去诸如铬的金属的净化器。 净化器包括具有流体入口和与流体入口流体连通的流体出口的壳体; 设置在流体入口下游的壳体内的体积的离子交换树脂; 以及离子交换树脂体积下游的过滤构件，所述过滤构件包括至少一个具有基本中性的表面的微孔膜和在所述至少一个微孔膜下游的微孔聚四氟乙烯膜。 还公开了使用本发明的净化剂从有机溶剂中除去包括铬在内的金属的方法。
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