公开(公告)号：US20210126319A1

公开(公告)日：2021-04-29

申请号：US16616521

申请日：2018-05-24

Applicant: Ceigard, LLC

Inventor： Barry J. Summey ,  Takahiko Kondo ,  William John Mason ,  Kang Karen Xiao ,  Robert Moran ,  Jeffrey G. Poley ,  Brian R. Stepp ,  Kristoffer K. Stokes ,  Xiaomin Zhang

IPC: H01M50/451 ,  B01D67/00 ,  B01D69/02 ,  B01D71/26 ,  B01D69/12 ,  H01M10/0525 ,  H01M50/406 ,  H01M50/417 ,  H01M50/446 ,  B29C55/12 ,  B29C48/00 ,  H01M50/491

Abstract: This application is directed to new and/or improved MD and/or TD stretched and optionally calendered membranes, separators, base films, microporous membranes, battery separators including said separator, base film or membrane, batteries including said separator, and/or methods for making and/or using such membranes, separators, base films, microporous membranes, battery separators and/or batteries. For example, new and/or improved methods for making microporous membranes, and battery separators including the same, that have a better balance of desirable properties than prior microporous membranes and battery separators. The methods disclosed herein comprise the following steps: 1.) obtaining a non-porous membrane precursor; 2.) forming a porous biaxially-stretched membrane precursor from the non-porous membrane precursor; 3.) performing at least one of (a) calendering, (b) an additional machine direction (MD) stretching, (c) an additional transverse direction (TD) stretching, and (d) a pore-filling on the porous biaxially stretched precursor to form the final microporous membrane. The microporous membranes or battery separators described herein may have the following desirable balance of properties, prior to application of any coating: a TD tensile strength greater than 200 or 250 kg/cm2, a puncture strength greater than 200, 250, 300, or 400 gf, and a JIS Gurley greater than 20 or 50 s.

公开(公告)号：US10981122B2

公开(公告)日：2021-04-20

申请号：US16079600

申请日：2017-02-24

Applicant: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

Inventor： Yu Hoshino ,  Kazushi Imamura ,  Tomohiro Gyobu ,  Ikuo Taniguchi ,  Akira Hamasaki ,  Chie Yamashita ,  Takeshi Watanabe ,  Yoshiko Miura

IPC: B01D71/40 ,  B01D69/02 ,  B01D69/12 ,  C08J7/04 ,  C08J5/20 ,  B01D67/00 ,  B01D71/76 ,  B01D69/10 ,  B01D53/22 ,  B01D69/04 ,  B01D71/26 ,  B01D71/34 ,  B01D71/36 ,  B01D71/68 ,  B01D69/06 ,  C08J5/22

Abstract: A monolayer membrane containing gelling polymer particles having at least one of a basic functional group and an acidic functional group, and having a thickness of less than 5 μm. A composite having a porous carrier and gelling polymer particles having at least any one of a basic functional group and an acidic functional group and filling up the surface pores of the porous carrier. The invention can provide a novel material capable of efficiently separating an acid gas from a mixed gas.

公开(公告)号：US20210108067A1

公开(公告)日：2021-04-15

申请号：US17050256

申请日：2019-04-24

Applicant: Rensselaer Polytechnic Institute

Inventor： Chulsung Bae ,  Jong Yeob Jeon ,  Junyoung Han ,  Sangtaik Noh

IPC: C08L53/02 ,  C08J5/22 ,  B01D69/02 ,  B01D67/00 ,  B01D71/26 ,  B01D71/28 ,  B01D71/80 ,  B01D71/82 ,  B01J41/14

Abstract: An ion exchange membrane material is composed of a crosslinked polymer network including a first poly(styrene-b-ethylene-r-butylene-b-styrene) triblock copolymer (SEBS), and second SEBS, and a linker crosslinking the first SEBS and the second SEBS. At least one phenyl group from the first SEBS and the second SEBS is functionalized with an alkyl group, and the carbon at the benzylic position of these alkyl groups is saturated with at least two additional alkyl groups. The linker is a diamine bound to the alkyl functional groups. The ion exchange membrane material is made via a substantially simultaneous quaternization and crosslinking reaction between the diamine linker and SEBS functionalized with alkyl halide groups. Increasing concentration of crosslinker in produces membranes with reduced water uptake, leading to an expectation of enhanced stability under hydrated conditions and greater durability. Advantageously, this reduction in water uptake came with little change to ion exchange capacity.

公开(公告)号：US10974209B2

公开(公告)日：2021-04-13

申请号：US16326009

申请日：2017-08-30

Applicant: ASTOM Corporation

Inventor： Maki Kinoshita ,  Masayuki Kishino ,  Shunichiro Nakatsukasa ,  Kenji Fukuta

IPC: B01D71/28 ,  B01D71/26 ,  B01D67/00 ,  C08J5/22 ,  B01D69/02 ,  B01D61/46 ,  B01J47/12 ,  B01D69/14

Abstract: A polymerizable composition for forming an ion-exchange resin precursor, the polymerizable composition containing a monomer component and polyethylene particles in an amount of 50 to 120 parts by mass per 100 parts by mass of the monomer component, wherein the monomer component contains an aromatic monomer for introducing ion-exchange groups and a nitrogen-containing aliphatic monomer, the nitrogen-containing aliphatic monomer being present in an amount of 10 to 35% by mass in said monomer component. An ion-exchange membrane is produced by applying the polymerizable composition onto a polyolefin type filament base material and polymerizing the polymerizable composition to form an ion-exchange resin precursor and, thereafter, introducing ion-exchange groups into the precursor.

公开(公告)号：US10933593B2

公开(公告)日：2021-03-02

申请号：US16117688

申请日：2018-08-30

Applicant: Celanese Sales Germany GmbH

Inventor： Lars Koelling ,  Christina Schmid ,  Christian Meermann

IPC: B29C67/20 ,  C08J9/24 ,  C02F1/00 ,  B01D69/02 ,  C02F3/20 ,  C08J9/00 ,  B01D39/16 ,  B01D67/00 ,  B43K1/00 ,  B01D71/26 ,  B29C67/04 ,  C08F210/02 ,  C08L23/06 ,  C02F103/10 ,  C02F101/32 ,  C02F103/44 ,  C02F103/02 ,  B29L31/14 ,  B29L31/00

Abstract: Polymer compositions containing polyethylene particles having a multi-modal molecular weight distribution are disclosed. The polymer compositions are well suited to producing porous substrates through a sintering process. Formulations made according to the present disclosure can produce porous substrates having improved flexibility demonstrated by an increased flexural strength while still retaining excellent pressure drop characteristics.

公开(公告)号：US10926214B2

公开(公告)日：2021-02-23

申请号：US16094833

申请日：2017-04-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  DMF MEDICAL INCORPORATED

Inventor： Ina Voigt ,  Wolfgang Ansorge ,  Florentin Wilfart ,  Michael Schmidt ,  Jan Haelssig

IPC: B01D53/22 ,  B01D71/26 ,  B01D69/08 ,  B01D69/02

Abstract: Hydrophobic poly(4-methyl-1-pentene) hollow fiber membrane for retention of anesthetic agents with an inner and an outer surface and between inner and outer surface an essentially isotropic support layer with a sponge-like, open-pored, microporous structure free of macrovoids and adjacent to this support layer on the outer surface a dense separation layer with a thickness between 1.0 and 3.5 μm. The membrane has a porosity in the range of greater than 35% to less than 50% by volume and a permeance for CO2 of 20-60 mol/(h·m2·bar), a gas separation factor α(CO2/N2) of at least 5 and a selectivity CO2/anesthetic agents of at least 150. The process for producing this membrane is based on a thermally induced phase separation process in which process a homogeneous solution of a poly(4-methyl-1-pentene) in a solvent system containing components A and B is formed, wherein component A is a strong solvent and component B a weak non-solvent for the polymer component. After formation of a hollow fiber the hollow fiber is cooled in a liquid cooling medium to form a hollow fiber membrane. The concentration of the polymer component in the solution may be in the range from 42.5 to 45.8 wt.-% and the hollow fiber leaving the die runs through a gap between die and cooling medium with a gap length in the range of 5-30 mm.

公开(公告)号：US20210040281A1

公开(公告)日：2021-02-11

申请号：US16979611

申请日：2019-03-12

Applicant: TeraPore Technologies, Inc.

Inventor： Rachel M. Dorin ,  Spencer Robbins ,  Jayraj K. Shethji

IPC: C08J5/18 ,  C08J9/36 ,  B01D71/26 ,  B01D71/28 ,  B01D71/80 ,  B01D69/02 ,  B01D67/00

Abstract: Embodiments disclosed herein provide a pleatable freestanding isoporous block-copolymer (“BCP”) thin films fabricated sans substrate at a size suitable for fabricating pleated cartridges. The thin films have narrow pore size distribution, are mechanically robust, and have exceptional separation performance. These porous BCP thin films are useful as filtration media and separation membranes and are amenable to standard manufacturing practices.

公开(公告)号：US20210013477A1

公开(公告)日：2021-01-14

申请号：US17034609

申请日：2020-09-28

Applicant: Celgard, LLC

Inventor： Donald K. Simmons ,  Joseph G. Yaritz

IPC: H01M2/16 ,  B01D67/00 ,  B29C55/00 ,  H01M2/14 ,  B01D71/26 ,  B29C48/08 ,  H01M10/0525

Abstract: A membrane is a microporous sheet made of a blend of a first ultra high molecular weight polyolefin and a second ultra high molecular weight polyolefin. Each polyolefin has a molecular weight, both of those molecular weights are greater than 1 million, and one molecular weight is greater than the other. Additionally, the intrinsic viscosity (IV) of the membrane may be greater than or equal to 6.3.

公开(公告)号：US10882009B2

公开(公告)日：2021-01-05

申请号：US16069206

申请日：2017-01-16

Applicant: BASF SE

Inventor： Dietrich Scherzer ,  Frank Prissok ,  Lena Arnold ,  Juergen Ahlers ,  Martin Weber

IPC: B01D69/14 ,  B01D69/02 ,  B01D71/26 ,  B01D71/54 ,  C08J5/18 ,  C08K7/22 ,  B01D53/22 ,  C08K5/56 ,  B82Y30/00 ,  C08K5/00

Abstract: The present invention relates to shaped bodies comprising a composition (Z1), wherein said composition comprises at least one polymer having an elongation at break of >30% and at least one porous metal-organic framework material, to processes for producing shaped bodies of this kind and to the use of a composition (Z1) comprising at least one polymer having an elongation at break of >30% and at least one porous metal-organic framework material for production of a film, membrane or laminate having a water vapor permeability according to DIN 53122 at 38° C./90% rel. humidity of greater than 1000 g/(m2*d), based on a film thickness of 10 μm.

公开(公告)号：US10792620B2

公开(公告)日：2020-10-06

申请号：US15527094

申请日：2015-11-19

Applicant: ENTEGRIS, INC.

Inventor： Jad Ali Jaber ,  Alketa Gjoka

IPC: B01D71/26 ,  B01D67/00 ,  B01D69/02 ,  B01D71/78

Abstract: Grafted, asymmetric, porous, ultra high molecular weight polyethylene membranes having a bubble point between about 5.38 bar (78 psi) and 11.03 bar (160 psi) are disclosed. Monomers are grafted to the porous polymeric membrane surfaces, the monomers having one or more of neutral groups or ion exchange groups grafted to one or more surfaces of the membrane. A combination of two photoinitiators can be used to graft the monomers to the asymmetric, porous, ultra high molecular weight membrane resulting in grafted microporous membranes that have water flow rates that are at least 50% of the water flow rate of an ungrafted, asymmetric, porous ultra high molecular weight polyethylene membrane. The grafted membrane also wets in water.