3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

3m Innovative Properties

Olester Benson, Jr

Andrew John Ouderkirk

Michael F Weber

Michael Benton Free

Martin B Wolk

Mieczyslaw H Mazurek

James M Jonza

Justin P Meyer

Patrick R Fleming

Kenneth L Smith

Evan L Schwartz

Carl A Stover

Sanford Cobb, Jr

William Ward Merrill

Robert L Brott

Craig R Schardt

John P Baetzold

Bing Hao

Manoj Nirmal

Charles A Marttila

David L Wortman

Terry O Collier

Diane North

Robert A Asmus

Robert L W Smithson

Robert F Kamrath

Daniel C Duan

Timothy M Dietz

Carsten Franke

Rosa Uy

Gary E Gaides

Moses Mekala David

David B Olson

Gary Timothy Boyd

Catherine A Leatherdale

Kurt J Halverson

Douglas Scott Dunn

Michael A Kropp

Thomas J Blong

William J Kopecky

Tao Liu

Daniel H Carlson

William Vogel Dower

James N Dobbs

Kristin LaVelle Thunhorst

Raymond J Kenney

Michael J Sykora

Bruce Brandon Wilson

Serkan Yurt

John S Huizinga

Bruce D Orensteen

Robert R Kieschke

Audrey A Sherman

Naiyong Jing

Sumita Basu Mitra

Jayshree Seth

Charles M Leir

Robert J DeVoe

Raymond Patrick Johnston

David C Windorski

Marc Dudley Radcliffe

Michael L Steiner

Robert A Yapel

Richard C Allen

Eric G Larson

David J Kinning

Sergey Lamansky

Vivian Wynne Jones

Charles David Hoyle

Haiyan Zhang

John James Stradinger

Steven J McMan

Donald J McClure

Graham M Clarke

Terence D Neavin

Daniel W Hennen

Joseph C Dingeldein

Brett J Sitter

Thomas R Hoffend, Jr

Albert I Everaerts

George G I Moore

Shandon Dee Hart

Brant Ulrick Kolb

Kenneth A Epstein

Stephen A Johnson

Christopher Stewart Lyons

Mark Kevitt Debe

Robin Edgar Wright

Mark A Roehrig

Peter D Condo

Nicholas T Gabriel

Scott Melvyn Tapio

James P Endle

Leland Ray Whitney

Stephen P Maki

Todd R Williams

Susan K Nestegard

David Jon Lundin

Chester A Bacon, Jr

Mark B O'Neill

Continuous additive manufacturing apparatuses are provided. An apparatus includes an actinic radiation-transparent substrate having a major surface and an irradiation source configured to direct actinic radiation through the actinic radiation-transparent substrate at predetermined dosages at predetermined locations. The apparatus further includes a means for depositing a composition onto the major surface of the actinic radiation-transparent substrate and a means for conveying the actinic radiation-transparent substrate or the irradiation source with respect to each other.

Continuous additive manufacturing apparatus

A continuous method of manufacturing adhesives is provided. The method includes obtaining an actinic radiation-polymerizable adhesive precursor composition disposed on a major surface of an actinic radiation-transparent substrate and irradiating a first portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a first irradiation dosage. The method further includes moving the actinic radiation-transparent substrate and irradiating a second portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a second irradiation dosage. Optionally, the method also includes irradiating a third portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate prior to moving the substrate. The first irradiation dosage and the third irradiation dosage are often not the same, thereby forming an integral adhesive having a variable thickness in an axis normal to the actinic radiation-transparent substrate.

Continuous additive manufacturing methods

Methods for making a microstructured tool having interspersed topographies are disclosed, and the production of articles therefrom. The article has a major surface including first microstructural features and second microstructural features arranged in a pattern visible at least when viewed normal to the first major surface. The first and second microstructural features are different relative to each other, and are selected from the group consisting of cones, diffraction gratings, lenticulars, segments of a sphere, pyramids, cylinders, fresnels, and prisms.

Method for making microstructured tools having discontinuous topographies, and articles produced therefrom

A method of making an adhesive is provided, including obtaining an actinic radiation-polymerizable adhesive precursor composition disposed against a surface of an actinic radiation-transparent substrate and irradiating a first portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a first irradiation dosage. The method further includes irradiating a second portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a second irradiation dosage. The first portion and the second portion are adjacent to or overlapping with each other and the first irradiation dosage and the second irradiation dosage are not the same. The method forms an integral adhesive having a variable thickness in an axis normal to the surface of the actinic radiation-transparent substrate. Also, an adhesive article is provided, including a substrate having a major surface and an integral adhesive disposed on the major surface of the substrate. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article.

Additive manufacturing methods for adhesives and adhesive articles

A method of making an adhesive is provided, including obtaining an actinic radiation-polymerizable adhesive precursor composition disposed against a surface of an actinic radiation-transparent substrate and irradiating a first portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a first irradiation dosage. The method further includes irradiating a second portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a second irradiation dosage. The first portion and the second portion are adjacent to or overlapping with each other and the first irradiation dosage and the second irradiation dosage are not the same. The method forms an integral adhesive having a variable thickness in an axis normal to the surface of the actinic radiation-transparent substrate. Also, an adhesive article is provided, including a substrate having a major surface and an integral adhesive disposed on the major surface of the substrate.

The present disclosure provides lamination transfer films and use of the lamination transfer films, particular in the fabrication of architectural glass elements, such as those used in Insulated Glass Units (IGUs). The lamination transfer films may be used to transfer functional layers and structures. The lamination transfer films may include a support film that can be removed during the transfer process, and the transferred materials are primarily inorganic. The resulting transferred structures on glass generally have high photo- and thermal-stability, and therefore can successfully be applied to the glass surfaces that are interior to the cavity within an IGU. The lamination transfer films can also be patterned such that macroscopic patterns of microoptical elements can be applied on a glass surface.

Microoptics for glazing

Retroreflective sheeting having a structured layer of cube corner elements and an at least one optically variable mark therein, and methods of making same.

Cube corner sheeting having optically variable marking

Lamination transfer films and methods for transferring a structured layer to a receptor substrate. The transfer films include a carrier substrate having a releasable surface, a sacrificial template layer applied to the releasable surface of the carrier substrate and having a non-planar structured surface, and a thermally stable backfill layer applied to the non-planar structured surface of the sacrificial template layer. The sacrificial template layer is capable of being removed from the backfill layer, such as via pyrolysis, while leaving the structured surface of the backfill layer substantially intact.

Structured lamination transfer films and methods

A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle.

Light control film with varied viewing angle

A multilayer optical adhesive including a first viscoelastic or elastomeric adhesive layer and a second viscoelastic or elastomeric adhesive layer. A crosslinked or soluble resin layer may be disposed between the first viscoelastic or elastomeric adhesive layer and the second viscoelastic or elastomeric adhesive layer or the first viscoelastic or elastomeric adhesive layer may be immediately adjacent to the second viscoelastic or elastomeric adhesive layer. An interface between immediately adjacent layers is structured and there is a difference in refractive indices across the interface.

Multilayer optical adhesives and methods of making same

Growing community of inventors

Woodbury, MN, United States of America

Olester Benson, Jr