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1.发明公开公开(公告)号：US20240325968A1
公开(公告)日：2024-10-03
申请号：US18592567
申请日：2024-03-01
CPC分类号： B01D53/228 , B01D67/0002 , B01D67/0088 , B01D69/10 , B01D71/5211 , B01D2256/10 , B01D2257/504
摘要： Provided is a gas separation membrane which is excellent in durability with respect to deterioration of a polymer due to an oxidizing gas. A gas separation membrane according to the present disclosure includes: a separate functional layer that contains an antioxidant and a polymer which has a polyethylene oxide structure, the polymer which has the polyethylene oxide structure including an ethyleneoxy unit at a proportion of 57% or more in terms of weight ratio with respect to 100% of constitutional units of a main chain, and the antioxidant having an I/O value of 0.4 or less in an organic conceptual diagram.
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公开(公告)号：US20230285906A1
公开(公告)日：2023-09-14
申请号：US18015718
申请日：2021-06-25
CPC分类号： B01D69/02 , B01D69/148 , B01D69/105 , B01D67/00091 , B01D53/228 , B01D71/401 , B01D2323/02 , B01D2323/21811 , B01D2325/38 , B01D2323/21826 , B01D2325/02834 , B01D2323/34
摘要： A gas separation membrane selectively permeable to a specific gas component includes a first porous layer, and a separation function layer provided on a first surface of the first porous layer. The separation function layer contains a hydrophilic resin. The first surface has a wetting tension of greater than or equal to 38 mN/m and less than or equal to 52 mN/m.
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公开(公告)号：US20210268450A1
公开(公告)日：2021-09-02
申请号：US17274427
申请日：2019-10-02
发明人： Fumiaki MATSUOKA , Kensuke KAWARA
IPC分类号： B01D69/12 , B01D53/22 , C08L33/02 , B01D71/40 , B01D67/00 , B01D71/36 , B01D71/72 , C08L61/06 , C08K3/26 , C08K3/22 , C08K5/17
摘要： The present invention provides a composition comprising an organic compound having an acid dissociation constant in a 25° C. aqueous solution of 5.0 to 15.0, a hydrophilic resin, and a basic compound, wherein a content of the organic compound is 30 to 1,000 parts by weight per 100 parts by weight of the hydrophilic resin.
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