Polysulfone membranes methods and apparatuses
    31.
    发明授权
    Polysulfone membranes methods and apparatuses 有权
    聚砜膜方法和装置

    公开(公告)号:US07959808B2

    公开(公告)日:2011-06-14

    申请号:US12262643

    申请日:2008-10-31

    IPC分类号: B01D61/00 B01D39/00 B01D53/22

    摘要: The present invention relates to methods and apparatuses for water filtration comprising contacting a water stream with a membrane comprising a polysulfone having structural units of Formula I wherein X is OH, NR1R2, or OR3; R1 and R2 are independently at each occurrence hydrogen, a C1-C5000 aliphatic radical, a C3-C12 cycloaliphatic radical, a C3-C12 aromatic radical, a polypeptide, a combination thereof, or R1 and R2 taken together form a 5- or 6-membered aliphatic ring or a 5-membered aromatic ring; R3 is a C1-C20 aliphatic radical, C3-C12 cycloaliphatic radical, C3-C12 aromatic radical, or a combination thereof; B′ and C′ are independently at each occurrence a nitro group, C1-C20 aliphatic radical, C3-C12 cycloaliphatic radical, C3-C12 aromatic radical, or a combination thereof; and q and r are independently at each occurrence 0 to 4. The present invention also relates to a method and apparatus for gas separation, the method comprising contacting a gas stream with a membrane comprising a polysulfone having structural units of Formula I.

    摘要翻译: 本发明涉及水过滤的方法和装置,包括使水流与包含具有式I结构单元的聚砜的膜接触,其中X是OH,NR1R2或OR3; R1和R2各自独立地为氢,C1-C5000脂族基团,C3-C12脂环族基团,C3-C12芳族基团,多肽,其组合,或者R 1和R 2一起形成5-或6 脂族环或5元芳环; R3是C1-C20脂族基团,C3-C12脂环族基团,C3-C12芳族基团或其组合; B'和C'在每次出现时独立地为硝基,C 1 -C 20脂族基,C 3 -C 12脂环族基,C 3 -C 12芳族基或其组合; 并且q和r在每次出现时独立地为0至4.本发明还涉及一种用于气体分离的方法和装置,所述方法包括使气流与包含具有式I结构单元的聚砜的膜接触。

    COMPOSITION, MEMBRANE, AND ASSOCIATED METHOD
    34.
    发明申请
    COMPOSITION, MEMBRANE, AND ASSOCIATED METHOD 失效
    组合物,膜和相关方法

    公开(公告)号:US20090020473A1

    公开(公告)日:2009-01-22

    申请号:US11778351

    申请日:2007-07-16

    IPC分类号: B01D39/00 C09K3/00

    摘要: A composition is provided. The composition may include a reaction product of a first composition having two or more anhydride moieties, a second composition having two or more hydroxyl moieties, and a third composition having at least one aziridine moiety. A method for forming a membrane from the composition is provided. A membrane formed from the composition is provided. Devices that include the membrane are provided, also.

    摘要翻译: 提供了组合物。 组合物可以包括具有两个或多个酸酐部分的第一组合物,具有两个或多个羟基部分的第二组合物和具有至少一个氮丙啶部分的第三组合物的反应产物。 提供了从组合物形成膜的方法。 提供由该组合物形成的膜。 也提供了包括膜的设备。

    Compositions comprising functionalized polyphenylene ether resins
    38.
    发明授权
    Compositions comprising functionalized polyphenylene ether resins 失效
    包含官能化聚苯醚树脂的组合物

    公开(公告)号:US06897282B2

    公开(公告)日:2005-05-24

    申请号:US10678252

    申请日:2003-10-03

    IPC分类号: C08G65/48 C08L71/02 C08G63/00

    摘要: The invention relates to a method of forming a polyphenylene ether resin containing residual aliphatic unsaturation. A polyphenylene ether is reacted with a capping agent in a solvent to form the polyphenylene ether resin containing residual aliphatic unsaturation, which is precipitated from solution by combining the solution with an antisolvent. The precipitated polyphenylene ether resin containing residual aliphatic unsaturation has lower levels of residual impurities than the same compound isolated by devolatilization.

    摘要翻译: 本发明涉及一种形成含有残留脂族不饱和度的聚苯醚树脂的方法。 在溶剂中使聚苯醚与封端剂反应,形成含有残留的脂族不饱和基团的聚苯醚树脂,其通过将溶液与抗溶剂结合而从溶液中沉淀出来。 含有残留脂肪族不饱和度的沉淀聚苯醚树脂与通过脱挥发分别分离的相同化合物的残留杂质含量较低。