3M Innovative Properties Company

Other

Wisconsin Alumni Research Foundation

Solventum Intellectual Properties Company

Clinton P Waller, Jr

Douglas Eugene Weiss

Kannan Seshadri

Jerald K Rasmussen

Bharat R Acharya

Derek J Dehn

Satinder K Nayar

Catherine A Bothof

Yi He

Michael R Berrigan

Omar Farooq

Brandon Alan Bartling

James Stephen Mrozinski

Jeffrey A Lucas

Mahfuza B Ali

Mark R Etzel

Jonathan F Hester

Carl A Laskowski

Andrew W Rabins

Lucas D McIntosh

Paul T Hines

Steven M Heilmann

Kenneth A Epstein

Chetan P Jariwala

Dennis L Krueger

Cary A Kipke

Ronald S Steelman

James E Aysta

Stefan H Gryska

Steven P Swanson

John E Potts

Jung-Sheng Wu

John J Rogers

Badri Veeraraghavan

Simon Kelly Shannon

Neil Percy

Scott R Kaytor

Philip D Radovanovic

Karl D Weilandt

Michael J Sierakowski

Hyacinth L Lechuga

Jesse D Miller

Timothy M Gillard

Michelle M Mok

Noah O Shanti

Neal T Strand

Junjun Wu

Brian T Weber

Michael S Graff

Joseph William Frisk

Jeremy M Higgins

Fabian Stolzenburg

Stephen J Pojar

Audrey S Forticaux

William A Hibbard

Loren R Schreader

John J Schmidt

Jeanne M Bruss

Gregory M Jellum

John C Harvey

Gari P Krogseng

Steven B Johnson

Michael W Lofgren

Angelines A Castro Forero

David R Gagnon

The present disclosure provides an article including an isoporous membrane disposed on a porous substrate. The isoporous 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.

Articles including an isoporous membrane disposed on a porous substrate and methods of making the same

A polymer matrix composite comprising a porous polymeric network; and a plurality of functional particles distributed within the polymeric network structure, and wherein the polymer matrix composite has an air flow resistance at 25° C., as measured by the 'Air Flow Resistance Test,' of less than 300 seconds/50 cm/500 micrometers; and wherein the polymer matrix composite has a density of at least 0.3 g/cm; and methods for making the same. The polymer matrix composites are useful, for example, as filters.

Polymer matrix composites comprising functional particles and methods of making the same

Polymer matrix composite comprising a porous polymeric network; and a plurality of thermally insulating particles distributed within the polymeric network structure, wherein the thermally insulating particles are present in a range from 15 to 99 weight percent, based on the total weight of the thermally insulating particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a density not greater than 3 g/cm; and methods for making the same. The polymer matrix composites are useful, for example, in electronic devices.

Polymer matrix composites comprising thermally insulating particles and methods of making the same

Polymer matrix composite comprising a porous polymeric network; and a plurality of intumescent particles distributed within the polymeric network structure; wherein the intumescent particles are present in a range from 15 to 99 weight percent, based on the total weight of the intumescent particles and the polymer (excluding the solvent); and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135° C.; and methods for making the same. The polymer matrix composites are useful, for example, as fillers, thermally initiated fuses, and fire stop devices.

Polymer matrix composites comprising intumescent particles and methods of making the same

Method of making a polymer matrix composite comprising a porous polymeric network structure; and a plurality of particles distributed within the polymeric network structure, the method comprising: combining a thermoplastic polymer, a solvent that the thermoplastic polymer is soluble in, and a plurality of particles to provide a slurry; forming the slurry in to an article; heating the article in an environment to retain at least 90 percent by weight of the solvent, based on the weight of the solvent in the slurry, and inducing phase separation of the thermoplastic polymer from the solvent to provide the polymer matrix composite.

Method of making polymer matrix composites

A polymer matrix composite comprising a porous polymeric network; and a plurality of functional particles distributed within the polymeric network structure, and wherein the polymer matrix composite has an air flow resistance at 25&#xb0; C., as measured by the 'Air Flow Resistance Test,' of less than 300 seconds/50 cm/500 micrometers; and wherein the polymer matrix composite has a density of at least 0.3 g/cm; and methods for making the same. The polymer matrix composites are useful, for example, as filters.

A polymer matrix composite comprising a porous polymeric network; and a plurality of dielectric particles distributed within the polymeric network structure; wherein the dielectric particles are present in a range from 5 to 98 weight percent, based on the total weight of the dielectric particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a dielectric constant in a range from 1.05 to 80; and methods for making the same. Polymer matrix composites comprising dielectric particles are useful, for example, as electric field insulators.

Polymer matrix composites comprising dielectric particles and methods of making the same

Polymer matrix composite comprising a porous polymeric network; and a plurality of thermally conductive particles distributed within the polymeric network structure; wherein the thermally conductive particles are present in a range from 15 to 99 weight percent, based on the total weight of the thermally conductive particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a density of at least 0.3 g/cm; and methods for making the same. The polymer matrix composites are useful, for example, in electronic devices.

Polymer matrix composites comprising thermally conductive particles and methods of making the same

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 (T) of 90 degrees Celsius or greater, and the C block has a Tof 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.

Porous membranes including pentablock copolymers and method of making the same

A coalescing element for aggregating droplets of an emulsion. The coalescing element includes a nonwoven web substrate. A coalescer that includes the coalescing element can also include a housing and a fluid inlet and a fluid outlet each in fluid communication with the coalescing element. The coalescing element and coalescer may be useful for emulsions that form in solvent extraction/electrowinning copper processing and for other emulsions.

Coalescing elements in copper production

Polymer matrix composite comprising a porous polymeric network; and a plurality of intumescent particles distributed within the polymeric network structure; wherein the intumescent particles are present in a range from 15 to 99 weight percent, based on the total weight of the intumescent particles and the polymer (excluding the solvent); and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135&#xb0; C.; and methods for making the same. The polymer matrix composites are useful, for example, as fillers, thermally initiated fuses, and fire stop devices.

A polymer matrix composite comprising a porous polymeric network; and a plurality of indicator particles distributed within the polymeric network structure; wherein the indicator particles are present in a range from 1 to 99 weight percent, based on the total weight of the indicator particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a density of at least 0.05 g/cm; and methods for making the same. The polymer matrix composites are useful, for example, as sensors.

Polymer matrix composites comprising indicator particles and methods of making the same

Polymer matrix composite comprising a porous polymeric network; and a plurality of thermally insulating particles distributed within the polymeric network structure, wherein the thermally insulating particles are present in a range from 15 to 99 weight percent, based on the total weight of the thermally insulating particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a density not greater than 3 g/cm3; and methods for making the same. The polymer matrix composites are useful, for example, in electronic devices.

Described herein is a filtration media comprising: (i) a first filtration medium comprising an anion exchange nonwoven substrate, wherein the anion exchange nonwoven substrate comprises a plurality of quaternary ammonium groups; and (ii) a second filtration medium comprising a functionalized microporous membrane wherein the functionalized microporous membrane comprises a plurality of guanidyl groups; wherein the first filtration medium is positioned upstream of the second filtration medium.

Filtration medium sequence for biomaterial purification

Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.

Method of making ligand functionalized substrates

Growing community of inventors

White Bear Lake, MN, United States of America

Clinton P Waller, Jr