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公开(公告)号：US11702486B2
公开(公告)日：2023-07-18
申请号：US16980312
申请日：2019-03-11
发明人： Carl A. Laskowski , Michael A. Yandrasits , Timothy M. Gillard , Zbyslaw R. Owczarczyk , Marina M. Kaplun
IPC分类号： C08F8/32 , C08F8/04 , C08F8/44 , C08F236/06 , C08F297/04 , C08K5/50 , C08L53/02 , H01M8/1004
CPC分类号： C08F8/32 , C08F8/04 , C08F8/44 , C08F236/06 , C08F297/04 , C08K5/50 , C08L53/025 , H01M8/1004
摘要： Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.
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公开(公告)号：US20230006230A1
公开(公告)日：2023-01-05
申请号：US17739227
申请日：2022-05-09
IPC分类号： H01M8/1032 , C08F216/14 , C08F214/26 , H01M8/1004 , H01M8/1039 , C07C309/82
摘要： Presently described is a monomer having the formula: wherein n ranges from 2 to 8; Y is F or CmF2m+1; a is 0, or averages 1 to 2; m is independently 1, 2, 3, or 4; and X is F or OH. Also described is a method of making such monomer, various compounds prepared during while making the monomer, fluoropolymers comprising polymerized units of such monomer, fuel cell membranes, membrane electrode assemblies, and methods of making fluoropolymers.
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公开(公告)号：US20240226820A1
公开(公告)日：2024-07-11
申请号：US18553957
申请日：2022-04-01
CPC分类号： B01D71/80 , B01D69/02 , B01D69/08 , B01D71/26 , B01D71/46 , C08F297/046 , C08F297/048 , B01D2325/36
摘要： Tetrablock copolymers of formula ABAC are provided that can be used to form porous articles such as porous hollow fibers and porous membranes. Each A block is formed from a vinyl aromatic monomer, the B block is formed from a conjugated diene monomer, and the C block is formed from at least two different oxirane (i.e., epoxy) compounds. The tetrablock copolymers can advantageously be prepared without the use of functional initiators and/or difunctional initiators. The tetrablock copolymers are well suited for solvent induced phase separation (SIPS) processing to prepare porous articles. Membranes formed from the tetrablock copolymers can be used for water treatment and biopharmaceutical purification and/or separation processes.
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4.发明公开公开(公告)号：US20240066473A1
公开(公告)日：2024-02-29
申请号：US17766395
申请日：2020-12-08
发明人： Clinton P. Waller, Jr. , Michelle M. Mok , Lucas D. McIntosh , Timothy M. Gillard , Carl A. Laskowski , Hyacinth L. Lechuga
CPC分类号： B01D69/02 , B01D71/80 , B01D71/26 , B01D71/281 , B01D71/521 , B01D71/5211 , B01D71/283 , B01D69/12 , B01D67/0013 , B01D2325/0212 , B01D2325/04 , B01D2325/02832 , B01D2325/02833
摘要： The present disclosure provides an article including an isoporous membrane disposed on a porous substrate. The iso-porous membrane includes a triblock copolymer or a pentablock copolymer. The isoporous membrane has a thickness and is isoporous throughout its thickness. A method of making an article is also provided, which does not require a solvent exchange process. The method includes depositing a composition on a porous substrate, thereby forming a fdm, and removing at least a portion of the solvent from the film, thereby forming an isoporous membrane having numerous pores. The composition contains a solvent and solids including a triblock copolymer or a pentablock copolymer. The article advantageously can be hydrophilic and provides sharp molecular weight cut-offs and high flux.
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公开(公告)号：US11345849B2
公开(公告)日：2022-05-31
申请号：US16318952
申请日：2017-07-18
发明人： Carl A. Laskowski , Saswata Chakraborty , Wayne S. Mahoney , Guy D. Joly , Michael C. Palazzotto
IPC分类号： B32B5/16 , B32B27/08 , B32B27/14 , C08K3/10 , C08K9/02 , C08K9/04 , C09K11/70 , C09K11/02 , C08F30/02 , C08L83/10 , C08L25/16 , C08L43/02 , C08G77/14 , C08G77/442 , C08F230/02 , C08F297/02 , C08F212/14
摘要： The present disclosure provides a composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing homo-copolymer combined with the core/shell nanoparticle, the stabilizing (co)polymer comprising styrene monomer units and functionalized with phosphine, arsine or stibine groups.
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公开(公告)号：US11254777B2
公开(公告)日：2022-02-22
申请号：US15733579
申请日：2019-03-11
IPC分类号： C08F297/02 , C08F8/32
摘要： Described herein are nitrogen-containing multi-block copolymers, as well as methods for making such multi-block copolymers, and articles comprising such multi-block copolymers. The nitrogen-containing multi-block copolymers contains at least one A block comprising polyisoprene; and at least one B block comprising amino-functionalized polybutadiene, the amino-functionalized polybutadiene comprising nitrogen-containing pendant groups.
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公开(公告)号：US11167251B2
公开(公告)日：2021-11-09
申请号：US16339832
申请日：2017-11-14
发明人： Michelle M. Mok , Carl A. Laskowski , Lucas D. McIntosh , Hyacinth L. Lechuga , Timothy M. Gillard , Clinton P. Waller, Jr.
摘要： The present disclosure provides a porous membrane made of pentablock copolymer. The porous membrane includes an ABCBA block copolymer and has a number of pores. The A block is immiscible with each of the B block and the C block, the B block has a glass transition temperature (Tg) of 90 degrees Celsius or greater, and the C block has a Tg of 25 degrees Celsius or less. The A block comprises a poly(alkylene oxide), a substituted epoxide, a polylactam, or a substituted carbonate; B block comprises a vinyl aromatic monomer or a polyalkylmethacrylate and C block comprises a polyacrylate, a polysiloxane or a polyisoprene. A method of making a porous membrane is also provided. The method includes forming a film or a hollow fiber from a solution including a solvent and solids containing an ABCBA block copolymer. The method further includes removing at least a portion of the solvent from the film or the hollow fiber and contacting the film or the hollow fiber with a nonsolvent.
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公开(公告)号：US10934374B2
公开(公告)日：2021-03-02
申请号：US16977294
申请日：2019-03-11
IPC分类号： C08F210/02 , C08F220/06 , C08J5/22 , B01J39/07 , B01J39/20 , B01J47/12 , H01M8/10 , H01M8/1072 , H01M8/1051 , H01M8/103 , H01M8/1018
摘要： Described herein are cationic polymers having a plurality of quaternary amino groups, methods of making such polymers, and uses of such polymers as ion exchange membranes in electrochemical devices.
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公开(公告)号：US10889692B2
公开(公告)日：2021-01-12
申请号：US16477741
申请日：2018-02-13
IPC分类号： C08J5/18 , C08F297/00 , C08G81/02
摘要： Described is a triblock copolymer of the formula ABC wherein B is a hydrogenated vinyl aromatic block having a Tg of ≥110° C. and comprising 30-90 wt. % of the copolymer; C is a rubbery block having a Tg≤25° C. and comprising 10-70 wt. % of the copolymer; and A is an block derived from ring-opening polymerization, substantially incompatible with both B and C blocks.
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公开(公告)号：US20190322788A1
公开(公告)日：2019-10-24
申请号：US16341561
申请日：2017-11-17
摘要： Novel pentablock polymers of the formula ABCBA are provided wherein C is a glassy aromatic block having a Tg of >70° C.; B is a rubber block having a Tg
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