公开(公告)号：US20180085714A1

公开(公告)日：2018-03-29

申请号：US15573199

申请日：2016-05-06

申请人： COMPACT MEMBRANE SYSTEMS, INC.

发明人： NING SHANGGUAN ,  ANDREW EDWARD FEIRING ,  SUDIPTO MAJUMDAR

IPC分类号： B01D71/34 ,  B01D71/82 ,  B01D53/22 ,  B01D69/02 ,  B01D69/12 ,  B32B3/26 ,  B32B27/08 ,  C07C7/144

CPC分类号： B01D71/76 ,  B01D53/228 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26 ,  B01D71/32 ,  B01D71/34 ,  B01D71/82 ,  B01D2325/20 ,  B32B3/26 ,  B32B27/08 ,  B32B27/205 ,  B32B27/28 ,  B32B27/286 ,  B32B27/322 ,  B32B2307/70 ,  B32B2307/724 ,  B32B2307/732 ,  C07C7/144 ,  C08F4/34 ,  C08F214/202 ,  C08F214/262 ,  C08F216/1408 ,  C08F216/1416 ,  C08F216/1466 ,  C08F2216/1475 ,  C08G61/10 ,  C09D129/10 ,  C08F214/20 ,  C08K3/28

摘要： Ionomers of Group 11 metals which include repeat units from vinylidene fluoride, can separate alkenes from alkanes when comprising a layer of a membrane. These membranes have excellent permeability and/or selectivity for alkenes in the separation of alkenes from alkanes.

公开(公告)号：US20230131883A1

公开(公告)日：2023-04-27

申请号：US17914152

申请日：2021-03-26

申请人： COMPACT MEMBRANE SYSTEMS, INC.

发明人： STUART MARSHALL NEMSER ,  SUDIPTO MAJUMDAR ,  NING SHANGGUAN

IPC分类号： B01D53/22 ,  B01D69/12 ,  B01D71/66 ,  B01D71/32 ,  A23B7/148 ,  B01D71/02

摘要： A method for removing ethylene from the atmosphere surrounding an agricultural product that is sensitive to ethylene, which promotes climacteric ripening and senescence, is disclosed. The method uses a membrane for selective ethylene permeation and removal from a container that is used to store, transport, and preserve the agricultural product.

公开(公告)号：US20180133660A1

公开(公告)日：2018-05-17

申请号：US15574408

申请日：2016-06-10

申请人： COMPACT MEMBRANE SYSTEMS, INC.

发明人： NING SHANGGUAN ,  ANDREW EDWARD FEIRING ,  SUDIPTO MAJUMDAR

IPC分类号： B01D71/32 ,  C08F214/18 ,  B01D67/00 ,  B01D53/22

CPC分类号： B01D71/32 ,  B01D53/228 ,  B01D67/0006 ,  B01D71/52 ,  B01D71/76 ,  B01D2323/06 ,  B01D2323/08 ,  B01D2325/20 ,  C07C17/38 ,  C08F214/186 ,  C07C21/18 ,  C07C21/185

摘要： Membranes having a permselective active layer of a copolymerized perfluorinated monomer and an non-fluorinated alkylvinylester monomer demonstrate superior selective permeability performance for separating gas mixtures compared to membranes of exclusively perfluorinated polymers. Preferred active layer compositions are copolymers of perfluoro-2,2-dimethyl-1,3 dioxole (PDD) copolymerized with an alkylvinyl ester such as vinyl acetate, and vinyl pivalate, and with alkylvinyl esters that are substantially hydrolyzed to provide copolymerized vinyl alcohol functionality. The membranes can have a thin, high diffusion rate, “gutter layer” of a fluorinated polymer highly permeable to nitrogen positioned between the active layer and a porous support layer. A novel copolymer effective in selectively permeable membranes is a copolymer of PDD and an alkylvinyl ester compound having the formula H2C═CHOC(0)R1 in which R1 is a linear or branched alkyl group of from 2 to 5 carbon atoms.

公开(公告)号：US20180111099A1

公开(公告)日：2018-04-26

申请号：US15573287

申请日：2016-05-06

申请人： COMPACT MEMBRANE SYSTEMS, INC.

发明人： NING SHANGGUAN ,  ANDREW EDWARD FEIRING ,  ROBERT DANIEL LOUSENBERG

IPC分类号： B01D71/76 ,  B01D69/12 ,  B01D71/32 ,  B01D71/26 ,  B01D53/22 ,  B01D69/02 ,  C07C7/144 ,  C08F216/14 ,  C08F214/20

CPC分类号： B01D71/76 ,  B01D53/228 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26 ,  B01D71/32 ,  B01D71/34 ,  B01D71/82 ,  B01D2325/20 ,  B32B3/26 ,  B32B27/08 ,  B32B27/205 ,  B32B27/28 ,  B32B27/286 ,  B32B27/322 ,  B32B2307/70 ,  B32B2307/724 ,  B32B2307/732 ,  C07C7/144 ,  C08F4/34 ,  C08F214/202 ,  C08F214/262 ,  C08F216/1408 ,  C08F216/1416 ,  C08F216/1466 ,  C08F2216/1475 ,  C08G61/10 ,  C09D129/10 ,  C08F214/20 ,  C08K3/28

摘要： Described herein are copolymers derived from certain perfluorinated sulfonyl fluoride monomers, cyclic or cyclizable perfluorinated monomers, and one or both of ethylene and/or vinyl fluoride. Group 11 metal sulfonate ionomers of these copolymers, especially silver ionomers, are useful in membranes which separate olefins from alkanes.

公开(公告)号：US20180111098A1

公开(公告)日：2018-04-26

申请号：US15573442

申请日：2016-05-06

申请人： COMPACT MEMBRANE SYSTEMS, INC.

发明人： SUDIPTO MAJUMDAR ,  ANDREW EDWARD FEIRING ,  NING SHANGGUAN ,  YOSUKE KOIZUMI

IPC分类号： B01D69/12 ,  B01D71/32 ,  B01D71/76 ,  B01D69/02 ,  B01D53/22 ,  B32B27/08 ,  B32B27/32 ,  B32B27/28 ,  C07C7/144 ,  C08G61/10

CPC分类号： B01D71/76 ,  B01D53/228 ,  B01D69/02 ,  B01D69/12 ,  B01D71/26 ,  B01D71/32 ,  B01D71/34 ,  B01D71/82 ,  B01D2325/20 ,  B32B3/26 ,  B32B27/08 ,  B32B27/205 ,  B32B27/28 ,  B32B27/286 ,  B32B27/322 ,  B32B2307/70 ,  B32B2307/724 ,  B32B2307/732 ,  C07C7/144 ,  C08F4/34 ,  C08F214/202 ,  C08F214/262 ,  C08F216/1408 ,  C08F216/1416 ,  C08F216/1466 ,  C08F2216/1475 ,  C08G61/10 ,  C09D129/10 ,  C08F214/20 ,  C08K3/28

摘要： Composite membranes comprised of at least two layers, one of the layers being a silver ionomer and a second layer which is a fluorinated polymer with certain permeability properties, are especially useful for the separation of alkanes from alkenes, Particularly useful is a three-layer composite membrane in which a porous layer is laminated to the second layer.