公开(公告)号：US20240226820A1

公开(公告)日：2024-07-11

申请号：US18553957

申请日：2022-04-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Laskowski ,  Timothy M. Gillard ,  Lucas D. McIntosh ,  Clinton P. Waller, Jr.

IPC: B01D71/80 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B01D71/46 ,  C08F297/04

CPC classification number: B01D71/80 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B01D71/46 ,  C08F297/046 ,  C08F297/048 ,  B01D2325/36

Abstract: 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.

公开(公告)号：US20240066473A1

公开(公告)日：2024-02-29

申请号：US17766395

申请日：2020-12-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Clinton P. Waller, Jr. ,  Michelle M. Mok ,  Lucas D. McIntosh ,  Timothy M. Gillard ,  Carl A. Laskowski ,  Hyacinth L. Lechuga

IPC: B01D69/02 ,  B01D71/80 ,  B01D71/26 ,  B01D71/28 ,  B01D71/52 ,  B01D69/12 ,  B01D67/00

CPC classification number: 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

Abstract: 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.

公开(公告)号：US11345849B2

公开(公告)日：2022-05-31

申请号：US16318952

申请日：2017-07-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Laskowski ,  Saswata Chakraborty ,  Wayne S. Mahoney ,  Guy D. Joly ,  Michael C. Palazzotto

IPC: 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

Abstract: 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.

公开(公告)号：US11254777B2

公开(公告)日：2022-02-22

申请号：US15733579

申请日：2019-03-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Timothy M. Gillard ,  Carl A. Laskowski ,  Michael A. Yandrasits

IPC: C08F297/02 ,  C08F8/32

Abstract: 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.

公开(公告)号：US20250002645A1

公开(公告)日：2025-01-02

申请号：US18706766

申请日：2023-01-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Laskowski ,  Paul B. Armstrong

IPC: C08G64/18 ,  C08G64/38 ,  C08L33/14 ,  C08L69/00

Abstract: Polycarbonate polymers comprising non-aromatic cyclic groups bonded with carbonate linking groups are described. A portion of the non-aromatic cyclic groups comprise a substituent having siloxane repeat units. Representative formulas of the substituents having siloxane repeat units include —CH2—CH2—Si(R4)2—(OSi(R4)2—R5, and —CH[Si(R4)2—(OSi(R4)2)m—R5]—CH3; wherein m is the number of siloxane repeat units; and R4 and R5 are independently alkyl, aryl, aralkyl or aralkylene. The polycarbonate polymer C typically comprises a high concentration of carbonate linking group, for example in an amount of at least 85 or 90 mol % or greater N based on the total linking groups of the polymer. Also described are compositions comprising the polycarbonate polymer and methods of making.

公开(公告)号：US20230357500A1

公开(公告)日：2023-11-09

申请号：US18004910

申请日：2021-06-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Laskowski ,  Timothy M. Gillard ,  Ranjani V. Parthasarathy ,  Hannah C. Cohen ,  Max A. Kruziki

IPC: C08G65/327 ,  C08G65/08 ,  C08G81/00 ,  A61K31/80

CPC classification number: C08G65/327 ,  C08G65/08 ,  C08G81/00 ,  A61K31/80 ,  C08G2650/58

Abstract: Phosphate-containing copolymers, medical compositions containing the phosphate-containing copolymers, and methods of suppressing microbial virulence are provided. By suppressing virulence, administration and/or application of the medical compositions can be used to prevent, mitigate, or treat a microbial infection. The phosphate-containing copolymers are prepared by phosphorylating either a random copolymer or a random copolymeric block that contains monomeric units of propylene oxide and glycidol.

公开(公告)号：US11780938B2

公开(公告)日：2023-10-10

申请号：US17756324

申请日：2020-12-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Claire Hartmann-Thompson ,  Mark J. Pellerite ,  Carl A. Laskowski ,  John Christopher Thomas ,  Marina M. Kaplun

IPC: C08F8/42 ,  H01M50/414 ,  C08F8/32 ,  C08F297/04 ,  C08J5/22

CPC classification number: C08F8/42 ,  C08F8/32 ,  C08F297/04 ,  C08J5/2243 ,  H01M50/414 ,  C08J2353/02

Abstract: Cationic polymers are provided that comprise monomeric units of Formula (V). (V) Each asterisk (*) indicates an attachment position to another monomeric unit; R is hydrogen or methyl; each R2 is each independently an alkyl, aryl, or a combination thereof; L is a linking group comprising an alkylene group; and +R3 is a cationic nitrogen-containing group free of any N—H bonds. Membranes formed from said cationic polymers, devices including such membranes, and methods of making such cationic polymers are also provided.

公开(公告)号：US11702486B2

公开(公告)日：2023-07-18

申请号：US16980312

申请日：2019-03-11

Applicant: 3M Innovative Properties Company ,  Alliance for Sustainable Energy, LLC

Inventor： Carl A. Laskowski ,  Michael A. Yandrasits ,  Timothy M. Gillard ,  Zbyslaw R. Owczarczyk ,  Marina M. Kaplun

IPC: C08F8/32 ,  C08F8/04 ,  C08F8/44 ,  C08F236/06 ,  C08F297/04 ,  C08K5/50 ,  C08L53/02 ,  H01M8/1004

CPC classification number: C08F8/32 ,  C08F8/04 ,  C08F8/44 ,  C08F236/06 ,  C08F297/04 ,  C08K5/50 ,  C08L53/025 ,  H01M8/1004

Abstract: 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.

公开(公告)号：US11466115B2

公开(公告)日：2022-10-11

申请号：US16982258

申请日：2019-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michelle M. Mok ,  Lucas D. McIntosh ,  Carl A. Laskowski ,  Timothy M Gillard

IPC: C08F297/04 ,  B01D67/00 ,  B01D69/02 ,  B01D71/24 ,  B01D71/28 ,  B01D71/80

Abstract: A porous membrane includes a triblock copolymer of the formula ABC. B is a hydrogenated vinyl aromatic block present in a range from 30 to 90 weight percent, based on the total weight of the copolymer and has a Tg of ≥110° C. C is a rubbery block present in a range from 10 to 70 weight percent, based on the total weight of the copolymer and has a Tg≤25° C. A is substantially incompatible with both the B and C blocks and is derived from ring-opening polymerization. B+C is present in a range from 70 to 95 weight percent, based on the total weight of the copolymer.

公开(公告)号：US20220088546A1

公开(公告)日：2022-03-24

申请号：US17425409

申请日：2020-03-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michelle M. Mok ,  Timothy M. Gillard ,  Carl A. Laskowski ,  Lucas D. McIntosh ,  Hyacinth L. Lechuga

IPC: B01D71/80 ,  B01D71/52 ,  B01D71/26 ,  B01D71/28 ,  B01D69/08 ,  B01D67/00

Abstract: A porous membrane, The porous membrane includes a triblock copolymer of the formula ABC, the porous membrane comprising a plurality of pores; wherein the A block has a Tg of 90 degrees Celsius or greater and is present in an amount ranging from 30% to 80% by weight, inclusive, of the total block copolymer; wherein the B block has a Tg of 25 degrees Celsius or less and is present in an amount ranging from 10% to 40% by weight, inclusive, of the total block copolymer and wherein the C block is a water miscible hydrogen-bonding block immiscible with each of the A block and the B block; wherein the porous membrane comprising a first major surface and an opposed second major surface, wherein the first major surface is a nanostructured surface.