3m Innovative Properties Company

Jeffrey L Solomon

Christopher Stewart Lyons

Marvin E Jones

Seyed Abolhassan Angadjivand

David B Redmond

Caleb T Nelson

Henrik B Van Lengerich

Martin B Wolk

James M Nelson

Karl K Stensvad

William F Edmonds

Jason S Petaja

Nicholas C Erickson

Thomas P Klun

Moses Mekala David

William Blake Kolb

Gary Timothy Boyd

Paul B Armstrong

James Zhu

Brian A Kinder

David J Tarnowski

Edwin L Kusilek

Kurt J Halverson

Michael Benton Free

Caroline M Ylitalo

Robert L Brott

Robert J DeVoe

Patrick R Fleming

Wayne Scott Mahoney

Craig R Schardt

Matthew S Stay

Richard C Allen

Tri Dinh Pham

Scott Melvyn Tapio

Bryan V Hunt

Kevin W Gotrik

Eric Wayne Nelson

Todd R Williams

Steven J McMan

Saswata Chakraborty

Paul D Graham

Justin P Meyer

Elisa M Cross

Daniel W Hennen

Joseph C Spagnola

Bert T Chien

Jeremy K Larsen

Lori P Engle

Brandt K Carter

Nathaniel K Naismith

Derek W Patzman

Kayla C Niccum

Vadim N Savvateev

Michael Charles Lea

Joshua M Fishman

Tonya D Bonilla

Douglas A Huntley

Robert T Fehr

Cedric Bedoya

Lucas J Hunt

Verna J LeMire

Sara Suzanne Merritt

Stephen M Menke

Tabitha A Silliman

Thomas E Muehle

Ashley R Sonnier

Samuel R Hei

Kundapur Raveesh Shenoy

Phillip D Hustad

Johah Shaver

Luminescent imaging films () for fluorescent enhancement and methods of making and using the same are provided. The films () include a flexible carrier layer (, and a pattern of photonic structure () disposed on the flexible carrier layer, which is interspersed with an anti-biofouling material () to provide a pattern of analyte sites (). The pattern of photonic structure includes a patterned high-refractive-index dielectric material surface () so as to provide resonance at the excitation or emission wavelength to enhance a fluorescence signal from labeled analytes.

Fluorescence enhancement films for luminescent imaging

An optical article includes a waveguide and a structured film. The structured film includes a polymeric substrate, an etch stop layer disposed on the polymeric substrate, a structured layer including a plurality of engineered structures disposed on a side of the etch stop layer opposite the polymeric substrate, a planarizing backfill layer disposed over the plurality of engineered structures to define a substantially planar major surface of the planarizing backfill layer having a surface roughness Ra, and an adhesive layer disposed on the substantially planar surface of the planarizing backfill layer and bonding the structured film to the waveguide. A difference in index of refraction of the planarizing backfill layer and the structured layer is at least 0.25 for at least a first wavelength Win a range of 400 nm to 2500 nm. The adhesive layer has an average thickness ta where Ra<ta<¼W

Structured film and optical article including structured film

The present disclosure provides an article including a layer having a nanostructured first surface including nanofeatures and an opposing second surface, and an inorganic layer including a major surface bonded to a portion of the nanostructured first surface. The nanostructured first surface includes protruding features that are formed of a single composition and/or recessed features. The article includes at least one enclosed void defined in part by the nanostructured first surface. The present disclosure also provides a method of making the article including treating a major surface of an inorganic layer with a coupling agent, contacting a nanostructured surface of a layer with the treated inorganic layer, and securing the two layers together via a bonded coupling agent by bonding at least one of the nanostructured surface or the treated inorganic layer. In addition, the present disclosure provides an optical element including the article. The nanostructured surface of the article is protected from damage and contamination by the inorganic layer.

Articles including nanostructured surfaces and enclosed voids, methods of making same, and optical elements

Light control films have a pattern applied to it. The light control film has a plurality of spaced apart first grooves in an optical medium. Each first groove has a closed bottom. Some of the first grooves are partially filled with a light absorbing first material that absorbs light of a predetermined wavelength range of from 400 to 2000 nm. The light absorbing first material defines an unfilled void region inside the first groove extending from a bottom surface of the light absorbing first material to the closed bottom of the first groove.

Patterned light control film

Nanostructured articles, materials for the nanostructured articles, and intermediate articles for use in making the nanostructured articles. The nanostructured articles can be formed on a flexible film and are useful for optical metasurface applications and possibly other applications. The articles can include nanoreplicated layers or pattern transfer layers of engineered nanostructures.

Nanostructured optical films and intermediates

Materials and methods useful in forming nano-scale features on substrates, and articles such as optical films incorporating such nano-scale patterned substrates.

Materials and methods for forming nano-structures on substrates

Methods of forming an array of patterns on a substrate are provided. An array of protective tiles formed from a protectant resin is provided to cover an array of sub-regions on the substrate. An array of patterns is formed on the substrate by sequentially repeating steps (i) and (ii) for each sub-region: (i) removing the protective tile from one of the sub-regions to expose the first major surface underneath; and (ii) forming a pattern on the exposed first major surface within the one of the sub-regions.

Arrayed structured replication articles and methods

The present disclosure provides an article including a layer having a nanostructured first surface including nanofeatures and an opposing second surface, and an organic layer including a major surface attached to a portion of the nanofeatures. The nanostructured first surface includes protruding features that are formed of a single composition and/or recessed features. The nanofeatures and the major surface of the second layer together define at least one void. The present disclosure also provides a method of making the article including contacting nanofeatures of a layer having a nanostructured surface with a major surface of an organic layer and reacting at least one material to secure the two layers together. In addition, the present disclosure provides an optical information display and an OLED device including the article. The nanostructured surface of the article is protected from damage and contamination by the organic layer.

Articles including nanostructured surfaces and enclosed voids, and methods of making same

An article includes a flexible structured film with a first major surface and a second major surface, wherein a first major surface of the flexible structured film has a plurality of posts separated by land areas, and the posts have an exposed surface. An anti-biofouling layer resides in the land areas, and the anti-biofouling layer has a methylated surface. An inorganic layer is on the exposed surfaces of the posts, wherein the inorganic layer includes a metal or a metal oxide. An analyte binding layer is on the inorganic layer, wherein the analyte binding layer is chosen from a reactive silane, a functionalizable hydrogel, a functionalizable polymer, and mixtures and combinations thereof. An exposed surface of the analyte binding layer includes at least one functional group selected to bind with a biochemical analyte.

Nanopatterned films with patterned surface chemistry

Article comprising a first, microstructured layer comprising a first material, and having first and second opposed major surfaces, the first major surface being a microstructured surface, and the microstructured surface having peaks and valleys, wherein the peaks are microstructural features each having a height defined by the distance between the peak of the respective microstructural feature and an adjacent valley; and a second layer comprising at least one of a crosslinkable or crosslinked composition, wherein at least a portion of the second major surface of the second layer is directly attached to at least a portion of the first major surface of the first, microstructured layer. Articles described herein are useful, for example, for optical film applications. For example. An article including a regular prismatic microstructured pattern can act as a totally internal reflecting film for use as a brightness enchancement film; an article including a corner-cube prismatic microstructured pattern can act as a retroreflecting film or element for use as reflecting film when combined with a back reflector; and an article including a prismatic microstructured pattern can act as an optical turning film or element for use in an optical display.

Article with microstructured layer

Article comprising a first microstructured layer comprising a first material, and having first and second opposed major surfaces, the first major surface being a microstructured surface, and the microstructured surface having peaks and valleys, wherein the peaks are microstructural features each having a height defined by the distance between the peak of the respective microstructural feature and an adjacent valley; and a second layer comprising an adhesive material, and having a first and second opposed major surfaces, the adhesive material comprising a reaction product of a mixture comprising (meth)acrylate and epoxy in the presence of each other, wherein at least a portion of the second major surface of the second layer is directly attached to at least a portion of the first major microstructured surface of the first layer.

A microstructured diffuser is described comprising a light transmissive film comprising a first microstructured surface comprising a plurality of peaks and valleys. A coating is disposed on the first microstructured surface. The coating partially fills the valleys forming a second microstructured surface.

Microstructured diffuser comprising first microstructured layer and coating, optical stacks, and method

Light control films are provided that confine light transmitted therethrough to be within a 360&#xb0; view region and block light outside of this view region. The light control films can provide security in all directions including right-and-left and up-and-down of the films, without compromising light transmittance compared to one-dimensional light control films. The light control films include an array of light transmissive, tapered posts and absorptive regions disposed between the posts.

360 degree privacy film

Articles are described such as optical films and optical film stacks. The articles include a substrateand a primer layerdisposed on the substrate wherein the primer layer comprises a polyacrylate and a nitrogen-containing polymer. The article further includes an adhesive layerdisposed onto the primer layer wherein the adhesive layer comprises a polyacrylate component. In some embodiments, the adhesive is further bonded to a second substrateor a release liner.

Articles and methods comprising polyacrylate primer with nitrogen-containing polymer

An article is described comprising a substrate, a pressure sensitive polyacrylate primer layer disposed on the substrate, and an adhesive layer disposed onto the primer layer; wherein the adhesive layer comprises a polyacrylate component. The adhesive layer is typically further bonded to a second substrate or a release liner. In some embodiments, at least one substrate further comprises a microstructured surface layer and the primer layer is bonded to the microstructured surface layer. In other embodiments, the adhesive layer is further bonded to a (e.g. post) structure. In some embodiments, the articles are optical films or optical film stacks. Methods of making an (e.g. adhesive coated) article are also described.

Article comprising polyacrylate pressure sensitive primer and adhesive comprising polyacrylate component

Growing community of inventors

Vadnais Heights, MN, United States of America

Jeffrey L Solomon