3m Innovative Properties Company

Solventum Intellectual Properties Company

Hyacinth L Lechuga

Mark J Pellerite

Kurt J Halverson

Raymond Patrick Johnston

Manoj Nirmal

Karl J L Geisler

Bradley W Eaton

Seth M Kirk

Brian W Lueck

John J Sullivan

Patrick G Zimmerman

Jodi L Connell

Gordon A Kuhnley

Alexander C Eldredge

Moses Mekala David

Mikhail L Pekurovsky

Caroline M Ylitalo

Robert L Brott

Mahfuza B Ali

Yu Yang

Suresh Iyer

John P Baetzold

Clinton P Waller, Jr

Kui Chen-Ho

Yongshang Lu

David G Freier

Dong-Wei Zhu

Pingfan Peter Wu

Ross E Behling

Vivian Wynne Jones

John James Stradinger

Steven H Kong

Justin P Meyer

Kara A Meyers

Robert B Secor

Xiaoguang Sun

Bert T Chien

David J Rowe

Carl A Laskowski

Nicholas C Erickson

Haeen Sykora

Timothy M Gillard

Michelle M Mok

Samuel J Carpenter

Lucas D McIntosh

Anish Kurian

Eric A Vandre

Hui Luo

Chris A Pommer

Ingrid N Haugan

Alan L Levin

Brittni M Schiewer

Jilliann M Nelson

Michelle Ji

Vivian W Jones

Suresh S Iyer

Films and articles are described comprising a microstructured surface having an array of peak structures and adjacent valleys. For improved cleanability, the valleys preferably have a maximum width ranging from 10 microns to 250 microns and the peak structures have a side wall angle greater than 10 degrees. The peak structures may comprise two or more facets such as in the case of a linear array of prisms or an array of cube-corners elements. The facets form continuous or semi-continuous surfaces in the same direction. The valleys typically lack intersecting walls. Also described are methods of making and methods of use. The microstructured surface of the article can be prepared by various microreplication techniques such as coating, injection molding, embossing, laser etching, extrusion, casting and curing a polymerizable resin; and bonding microstructured film to a surface or article with an adhesive.

Microstructured surface with increased microorganism removal when cleaned, articles and methods

Wet-on-wet coating processes are provided to produce multilayer articles. First and second coating materials are sequentially applied on to a structured substrate surface to form a skin layer directly over the structured substrate surface and a bulk layer over the skin layer. The conformability of the skin layer can be adjusted to provide desired surface and bulk properties.

Multilayer articles via wet-on-wet processing

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 nanostructured article having a first layer with a nanostructured surface is described. The nanostructured surface includes a plurality of pillars extending from a base surface of the first layer. The pillars have an average height greater than an average lateral dimension of the pillars. An average center-to-center spacing between pillars is no more than 2000 nm. The average lateral dimension is no less than 50 nm. Each pillar in the plurality of pillars has at least a lower portion and an upper portion where the lower portion is between the upper portion and the base surface, and the upper and lower portions have differing compositions. The nanostructured article includes a second layer disposed over the plurality of pillars and extending continuously to the base surface.

Nanostructured article

A composite layer including first and second layers is described. The first layer includes a plurality of metallic nanowires and the second layer includes a polymeric overcoat disposed on the nanowires. In top plan view, the composite layer has at least one first region and at least one second region, where the nanowires in each first region form an interconnected network of the nanowires, and each second region includes a plurality of nanotrenches through the second layer into the first layer.

Patterned overcoated nanowire transparent conducting coatings

Described herein is composite article comprising a substrate; and on at least one face of the substrate a multilayered coating disposed thereon. The multilayered coating comprises (i) an abrasion-resistant layer adjacent to the substrate, wherein the abrasion-resistant layer comprises inorganic oxide nanoparticles and a polymer binder; and (ii) an antireflection layer adjacent to the abrasion-resistant layer opposite the substrate, wherein the antireflection layer comprises a fluorosilane polymer, wherein the fluorosilane polymer comprises: at least one monomeric unit A represented by the formula (I) wherein Rrepresents H or methyl, Lrepresents a covalent bond or a divalent aliphatic group having from 1 to 10 carbon atoms, each Yindependently represents a hydrocarbyl group having from 1 to 6 carbon atoms, each Yindependently represents a hydrolyzable group, g is 0, 1, or 2; and at least one divalent monomeric unit B represented by the formula (I) wherein R, R, and Rrepresent H, methyl, trifluoromethyl, or F, wherein at least one of R, R, and Ris F, Rrepresents a covalent bond or a divalent group selected from the group consisting of &#x2014;(CFO)&#x2014;, &#x2014;(CFCFO)&#x2014;, &#x2014;(CFCFCFO)&#x2014;, &#x2014;(CFCFCFCFO)&#x2014;, &#x2014;(CFCF(CF)O)&#x2014;, and combinations thereof, wherein a, b, c, d, and e represent integers in the range of from 0 to 130, and wherein 1&#x2264;a+b+c+d+e&#x2264;130, and Ris a perfluoroalkyl group. 

Multilayer composite article

A method comprising: providing a transparent electrically conductive film comprising: a transparent substrate (); a composite layer () comprising: an electrically conductive layer disposed on at least a portion of a major surface of the transparent substrate () and comprising a plurality of interconnecting metallic nanowires (); and a polymeric overcoat layer disposed on a portion of the electrically conductive layer, to provide a coated area of the electrically conductive layer; and patternwise exposing the coated area of the electrically conductive layer to a corona discharge to provide a patternwise exposed electrically conductive film comprising (1) an un exposed region () of the coated region having a first electrical resistivity, and (2) an exposed region () having a second electrical resistivity; wherein the exposed region is less electrically conductive than the unexposed region, and wherein there is a ratio of the second electrical resistivity over the first electrical resistivity of at least 1000:1.

Corona patterning of overcoated nanowire transparent conducting coatings

A transparent electrical conductor (), comprising a transparent substrate (); a composite layer () comprising an electrically conductive layer () disposed on at least a portion of a major surface of the transparent substrate () and comprising a plurality of interconnecting metallic nanowires, and a polymeric overcoat layer () disposed on at least a portion of the electrically conductive layer (); wherein a pattern in the composite layer includes an x-axis and a y-axis of an x-y plane of the composite layer and a z-axis into the x-y plane of the composite layer, and the pattern defines a plurality of electrically conductive regions () in the x-y plane of the composite layer (), wherein the electrically conductive regions () are separated from each other by electrically insulative traces (), each of which defines a valley into the z-axis of the x-y plane of the composite layer (), the valley having a maximum depth () in a range from 50 nanometers to 100 nanometers relative to the x-y plane of the composite layer (), wherein the valley has a cross-sectional width (M) in a range from 10 micrometers to 1000 micrometers, and wherein the valley further comprises a plurality of crevices () having a depth () in a range from 50 nanometers to 100 nanometers further into the z-axis of the x-y plane of the composite layer (). Methods for patternwise irradiating transparent electrodes () to generate electrically insulating traces () are also described.

Laser patterning of silver nanowire-based transparent electrically conducting coatings

Growing community of inventors

Saint Paul, MN, United States of America

Hyacinth L Lechuga