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公开(公告)号：US09303133B2
公开(公告)日：2016-04-05
申请号：US14320415
申请日：2014-06-30
Applicant: PALL CORPORATION
Inventor： Hassan Ait-Haddou , Frank Onyemauwa
IPC: C08J9/28
CPC classification number: C08J9/28 , B01D67/0009 , B01D69/02 , B01D71/52 , B01D71/68 , B01D71/80 , B01D2323/02 , B01D2323/12 , B01D2323/18 , B01D2325/36 , C08J2201/0522 , C08J2203/12 , C08J2381/06
Abstract: Disclosed is a hydrophilic porous membrane comprising a block copolymer of the formula: A-B-A (I) or A-B (II), wherein block A is (i) a copolymer of glycidol and allyl glycidyl ether, the copolymer having one or more allyl groups; or (ii) a copolymer of glycidol and allyl glycidyl ether, wherein one or more of the allyl groups of the copolymer have been replaced with 1,2-dihydroxypropyl group or a group of the formula: —(CH2)a—S—(CH2)b—X, wherein a, b, and X are as defined herein, and block B is an aromatic hydrophobic polymeric segment, for example, polyethersulfone. Also disclosure is a method of preparing such porous membranes.
Abstract translation: 公开了一种亲水性多孔膜，其包含下式的嵌段共聚物：A-B-A（I）或A-B（II），其中嵌段A为（i）缩水甘油与烯丙基缩水甘油醚的共聚物，该共聚物具有一个或多个烯丙基; 或（ii）缩水甘油和烯丙基缩水甘油醚的共聚物，其中共聚物的一个或多个烯丙基已被1,2-二羟丙基或下式所示的基团取代： - （CH 2）a -S-（ CH2）b-X，其中a，b和X如本文所定义，并且嵌段B是芳族疏水性聚合物链段，例如聚醚砜。 还公开了制备这种多孔膜的方法。
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公开(公告)号：US08821931B2
公开(公告)日：2014-09-02
申请号：US12270452
申请日：2008-11-13
Applicant: Xiaorong Wang , Mindaugas Rackaitis , Naruhiko Mashita , Victor J. Foltz
Inventor： Xiaorong Wang , Mindaugas Rackaitis , Naruhiko Mashita , Victor J. Foltz
CPC classification number: C08J9/28 , C08J9/36 , C08J2201/0522 , C08J2201/0542 , C08J2353/00 , C09K19/544 , C11D17/0039 , H01F1/44
Abstract: Micro-sized particles having a polymeric structure of cells are provided. Also provided is a method of producing micro-sized particles having a polymeric structure comprising: (1) forming a homogenous solution by heating a mixture of a high molecular weight polymer and a low molecular weight material, wherein said low molecular weight material makes up at least about 50% by weight of the homogenous solution, (2) forming a dispersed solution by dispersing the homogenous solution formed in step (1) into an inert material, (3) cooling the dispersed solution to cause the high molecular weight polymer to phase separate from the low molecular weight material, (4) forming solid particles comprised of said low molecular weight material trapped inside a structure of cells of said high molecular weight polymer, and (5) removing the solid particles from the dispersed solution.
Abstract translation: 提供具有电池聚合结构的微尺寸颗粒。 还提供了一种生产具有聚合物结构的微尺寸颗粒的方法，包括：（1）通过加热高分子量聚合物和低分子量材料的混合物形成均匀溶液，其中所述低分子量材料组成 至少约50重量％的均匀溶液，（2）通过将步骤（1）中形成的均匀溶液分散在惰性物质中形成分散溶液，（3）冷却分散溶液使高分子量聚合物相 与低分子量材料分离，（4）形成由所述低分子量材料构成的固体颗粒，所述低分子量材料被捕获在所述高分子量聚合物的细胞结构内，和（5）从分散溶液中除去固体颗粒。
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公开(公告)号：US20130058858A1
公开(公告)日：2013-03-07
申请号：US13696133
申请日：2011-05-02
Applicant: Hiroshi Uyama , Takashi Tsujimoto , Keisuke Okada , Tatsuya Oka
Inventor： Hiroshi Uyama , Takashi Tsujimoto , Keisuke Okada , Tatsuya Oka
IPC: C08J9/00 , C01B31/02 , C08F120/44
CPC classification number: C08J9/28 , C08J2201/0522 , C08J2333/20
Abstract: A method for producing a porous body containing polyacrylonitrile as a main component, and the method includes the steps of obtaining a polyacrylonitrile solution by heating and dissolving the polyacrylonitrile in a solvent, obtaining a product precipitated by cooling the polyacrylonitrile solution, and obtaining the porous body containing the polyacrylonitrile as a main component by separating and drying the product. The solvent contains a poor solvent for the polyacrylonitrile and a good solvent for the polyacrylonitrile.
Abstract translation: 一种以聚丙烯腈为主要成分的多孔体的制造方法，其特征在于，通过将聚丙烯腈加热溶解在溶剂中而获得聚丙烯腈溶液，得到通过冷却聚丙烯腈溶液而沉淀的产物，得到多孔体 通过分离和干燥产物，含有聚丙烯腈作为主要成分。 该溶剂含有用于聚丙烯腈的不良溶剂和用于聚丙烯腈的良溶剂。
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公开(公告)号：US20090285894A1
公开(公告)日：2009-11-19
申请号：US12270452
申请日：2008-11-13
Applicant: Xiaorong Wang , Mindaugas Rackaitis , Naruhiko Mashita , Victor J. Foltz
Inventor： Xiaorong Wang , Mindaugas Rackaitis , Naruhiko Mashita , Victor J. Foltz
CPC classification number: C08J9/28 , C08J9/36 , C08J2201/0522 , C08J2201/0542 , C08J2353/00 , C09K19/544 , C11D17/0039 , H01F1/44
Abstract: Micro-sized particles having a polymeric structure of cells are provided. Also provided is a method of producing micro-sized particles having a polymeric structure comprising: (1) forming a homogenous solution by heating a mixture of a high molecular weight polymer and a low molecular weight material, wherein said low molecular weight material makes up at least about 50% by weight of the homogenous solution, (2) forming a dispersed solution by dispersing the homogenous solution formed in step (1) into an inert material, (3) cooling the dispersed solution to cause the high molecular weight polymer to phase separate from the low molecular weight material, (4) forming solid particles comprised of said low molecular weight material trapped inside a structure of cells of said high molecular weight polymer, and (5) removing the solid particles from the dispersed solution.
Abstract translation: 提供具有电池聚合结构的微尺寸颗粒。 还提供了一种生产具有聚合物结构的微尺寸颗粒的方法，包括：（1）通过加热高分子量聚合物和低分子量材料的混合物形成均匀溶液，其中所述低分子量材料组成 至少约50重量％的均匀溶液，（2）通过将步骤（1）中形成的均匀溶液分散在惰性物质中形成分散溶液，（3）冷却分散溶液使高分子量聚合物相 与低分子量材料分离，（4）形成由所述低分子量材料构成的固体颗粒，所述低分子量材料被捕获在所述高分子量聚合物的细胞结构内，和（5）从分散溶液中除去固体颗粒。
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