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公开(公告)号：US20210205765A1
公开(公告)日：2021-07-08
申请号：US17059545
申请日：2019-07-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Lucas D. McIntosh , Michelle M. Mok , John J. Schmidt , Carl A. Laskowski , Timothy M. Gillard
Abstract: An isoporous membrane includes a multiblock copolymer film. The multiblock copolymer is crosslinked, and the film has a toughness of at least 50 kJ/m3 as a free-standing film when wet, as measured by integrating the area under a stress-strain curve for the film. Methods of forming isoporous membranes are also included.
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公开(公告)号：US20200047135A1
公开(公告)日：2020-02-13
申请号：US16339832
申请日：2017-11-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michelle M. Mok , Carl A. Laskowski , Lucas D. McIntosh , Hyacinth L. Lechuga , Timothy M. Gillard , Clinton P. Waller, JR.
Abstract: 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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13.发明申请公开(公告)号：US20170144111A1
公开(公告)日：2017-05-25
申请号：US15319111
申请日：2015-06-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michelle M. Mok , Kannan Seshadri , Moses M. David , Seth M. Kirk , Daniel Carvajal
CPC classification number: B01D69/127 , B01D67/0086 , B01D67/009 , B01D69/105 , B01D71/44 , B01D71/70 , B01D2323/34
Abstract: Asymmetric articles are described including a porous substrate with two opposing major surfaces and a porous structure extending between the surfaces, and a polymeric coating on one of the major surfaces and extending into the porous structure to a depth of the porous structure. Methods for making an asymmetric composite article are also provided, including providing a porous substrate, treating the porous substrate with a plasma treatment or a corona treatment from one major surface to a depth of the porous structure between the two major surfaces. The method further includes applying a coating solution to the treated porous substrate and drying the coating solution to form a composite asymmetric composite article having a polymeric coating on one major surface and extending into the porous structure to the depth of the treated porous structure.
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公开(公告)号：US20240003077A1
公开(公告)日：2024-01-04
申请号：US18044713
申请日：2021-09-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michelle M. Mok , Michael R. Berrigan , Aniruddha A. Upadhye , Andrew W. Vail
CPC classification number: D06M10/001 , D04H1/435 , D04H1/4391 , D06M2101/32 , D04H3/018 , D04H3/011 , D06B9/00
Abstract: A fibrous web comprising multiple fibers, wherein the fibrous web has a major web surface; wherein the fibers near the major web surface comprise an outer surface; wherein the outer surface of the fibers compromises a recrystallized skin layer; wherein the recrystallized skin layer has a plurality of textures; and wherein at least another part of the outer surface is smooth.
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Patent Agency Ranking
公开(公告)号：US20220221627A1
公开(公告)日：2022-07-14
申请号：US17609690
申请日：2020-05-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Timothy J. Hebrink , Michelle M. Mok , Derek J. Dehn , Mary E. Johansen , Lon R. Johnson , Todd G. Pett , Moses M. David , James P. Burke , Vivian W. Jones , Haiyan Zhang
Abstract: A composite cooling film (100) comprises an ultraviolet-reflective multilayer optical film (120) and a reflective microporous layer (110) secured thereto. The ultraviolet-reflective multilayer optical film (120) hat is at least 50 percent reflective of ultraviolet radiation over a majority of the wavelength range of at least 340 but less than 400 nanometers. The reflective microporous layer (110) has a continuous phase comprising a nonfluorinated organic polymer and is diffusely reflective of solar radiation over a majority the wavelength range of 400 to 2500 nanometers, inclusive. The composite cooling film (100) has an average absorbance over the wavelength range 8-13 microns of at least 0.85. An article (1200) comprising the composite cooling film (100) adhered to a substrate (1210) is also disclosed.
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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
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michelle M. Mok , Carl A. Laskowski , Lucas D. McIntosh , Hyacinth L. Lechuga , Timothy M. Gillard , Clinton P. Waller, Jr.
Abstract: 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：US10889692B2
公开(公告)日：2021-01-12
申请号：US16477741
申请日：2018-02-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Carl A. Laskowski , Timothy M. Gillard , Michelle M. Mok , Lucas D. McIntosh
IPC: C08J5/18 , C08F297/00 , C08G81/02
Abstract: 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：US10807046B2
公开(公告)日：2020-10-20
申请号：US15319111
申请日：2015-06-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michelle M. Mok , Kannan Seshadri , Moses M. David , Seth M. Kirk , Daniel Carvajal
Abstract: Asymmetric articles are described including a porous substrate with two opposing major surfaces and a porous structure extending between the surfaces, and a polymeric coating on one of the major surfaces and extending into the porous structure to a depth of the porous structure. Methods for making an asymmetric composite article are also provided, including providing a porous substrate, treating the porous substrate with a plasma treatment or a corona treatment from one major surface to a depth of the porous structure between the two major surfaces. The method further includes applying a coating solution to the treated porous substrate and drying the coating solution to form a composite asymmetric composite article having a polymeric coating on one major surface and extending into the porous structure to the depth of the treated porous structure.
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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
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Carl A. Laskowski , Timothy M. Gillard , Michelle M. Mok , Lucas D. McIntosh
Abstract: 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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