3M Innovative Properties Company

Minnesota Mining and Manufacturing Company

Other

3M Innovative Properties

James M Jonza

Andrew John Ouderkirk

Michael F Weber

Carl A Stover

Olester Benson, Jr

Sanford Cobb, Jr

Douglas Scott Dunn

John Allen Wheatley

Audrey A Sherman

William Ward Merrill

Timothy J Hebrink

David L Wortman

Andrew T Ruff

Caroline M Ylitalo

Timothy J Nevitt

Sumita Basu Mitra

Mark J Pellerite

Richard C Allen

William J Kopecky

Mark F Schulz

David T Yust

Philip G Martin

Robert D Taylor

Yaoqi Joe Liu

Bryan C Feisel

James E Lasch

Albert I Everaerts

Shandon Dee Hart

George G I Moore

Duane Douglas Fansler

Mieczyslaw H Mazurek

Christopher Stewart Lyons

Robert L Brott

Patrick R Fleming

Robin Edgar Wright

Joseph D Rule

Mark A Roehrig

Mark E Gardiner

Ta-Hua Yu

Joseph Clark Carls

James P Endle

David R Holm

Stephen P Maki

Mark A Strobel

Chester A Bacon, Jr

Stephen J Willett

Bruce Brandon Wilson

Mark B O'Neill

Graham M Clarke

Terry O Collier

Jay M Jennen

Terence D Neavin

Ronald W Gerdes

Laurence R Gilbert

Christopher K Haas

Jeffrey P Kalish

Gina M Buccellato

Thomas Herdtle

Joel A Getschel

Gary B Hanson

Ralph H Bland

Nagraj Koneripalli

James D Smith

Kenneth B Smith

Jeffrey F Bradley

Kathryn R Bretscher

Lori P Engle

David Loren Vall

Bruce D Stambaugh

William B Black

James A Klein

Lynn E Lorimor

Roger J Stumo

Eugene H Carlson

Janet T Keller

Randy S Bay

Robert J Devoe

Jennifer N Hanson

Raymond L Lucking

Robert F Watkins

Ibrahim S Gunes

James M Kaczmarczik

Janis R Gust

Terrence E Cooprider

Brian Leroy Koster

David C Kramlich

Scott A Boyd

Gregory L Bluem

John A Wheatley

Döne Demirgöz

Joan M Frankel

Shivshankar Venkataramani

Jeffrey A Boettcher

Gregory J Anderson

Matthew J Schmid

Raha A Been

Kelly M Roscoe

Yao Qi Liu

Jeffery A Boettcher

Various embodiments of a respirator that includes a harness, a mask body, and an exhalation valve are disclosed. The exhalation valve can include a valve seat and a flexible flap that is in engagement with the valve seat. The flexible flap can have one or more materials that can cause the flap to flash when moving from a closed position to an open position or vice versa. The flashing valve can make it easier for a user to ascertain whether the valve is operating properly.

Respirator having optically active exhalation valve

Cushioning articles or structures are provided including a cell layer with an array of cells interconnected with each other. Each of the cells includes at least three cell walls extending between the first and second major surfaces thereof. The cell walls are shared by the adjacent cells, and the cell layer further includes a land region located at the second major surface and connecting the at least three cell walls. A base layer is attached to the second major surface of the cell layer to form a sheet.

Cushioning structures including interconnected cells

A viscoelastic wound closure dressing. The dressing can include a viscoelastic backing having a first major surface configured to face skin when in use, a first end, a second end, and a middle section located between the first end and the second end. The wound closure dressing can further include a skin-contact adhesive on the first major surface of the viscoelastic backing adjacent the first end and the second end. A majority of the first major surface of the middle section can be free of the skin-contact adhesive. The viscoelastic backing can recover, at room temperature: (i) no more than 40% of its deformation after 10 seconds, after being strained to 50% elongation for 30 minutes, and (ii) at least 70% of its deformation after 48 hours, after being strained to 50% elongation for 30 minutes.

Viscoelastic wound closure dressing

Various embodiments of a respirator () that includes a harness (), a mask body (), and an exhalation valve () are disclosed. The exhalation valve () can include a valve seat () and a flexible flap () that is in engagement with the valve seat. The flexible flap can have one or more materials that can cause the flap to flash () when moving from a closed position to an open position or vice versa. The flashing valve can make it easier for a user to ascertain whether the valve is operating properly.

Laterally-coalesced foam slabs and methods and apparatus, including foaming dies, for making and using such foam slabs.

Laterally-coalesced foam slab

A shim stack foaming die for making foam slabs comprises a plurality of shims that are layered together under pressure to form a shim stack, wherein the shims combine to collectively define a plurality of die orifices in a working face, to define a main body of the shim stack foaming die, and also to define a plurality of die cavity that is fluidly connected to the plurality of die orifices. And articles foamed from the shim stack foaming die have found wide use in various applications, thermal or acoustic insulation, reinforcing layers and/or space-filling layers, and so on.

Shim-stack foaming die

Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films.

Post-formable multilayer optical films and methods of forming

Polymer fibers are formed with concentric alternating layers of different polymer materials. The layers pairs have cross-sectional thicknesses selected for reflecting light at a selected visible wavelength. A cross-sectional dimension of the core is at least ten times an average of the selected thicknesses of the alternating layers. Some articles formed by the fibers are formed by attaching one fiber to another: the color of the fibers at the point of attachment is different from the colors of the fibers elsewhere. The fibers may be deformed to change its color properties by elongating the cross-section of the polymer fiber along a first cross-sectional axis. In some embodiments, the fibers are polarization sensitive.

Color shifting multilayer polymer fibers and security articles containing color shifting multilayer polymer fibers

A method for forming a color shifting film on a support, the film comprising a reflective stack disposed adjacent to the support and an image is disclosed. The reflective stack comprises an at least partially transparent spacer layer comprising a substituted acrylamide polymer disposed between a partially reflective first layer and a reflective second layer. The acrylamide layer has a thickness sufficient to produce an interference color.

Interference films having acrylamide layer and method of making same

An ink receptive article including a substrate having on at least a portion of a major surface thereof an antistatic layer, and wherein the antistatic layer has on at least a portion of a major surface thereof an ink receptive layer, wherein the ink receptive layer includes a crosslinked polymer selected from the group consisting of polyurethanes, polyethers, polyesters, polyacrlylics, polyureas, copolymers thereof, and blends thereof.

Ink receptive article

An ink receptive article including a substrate having applied on at least a portion thereof a layer of an ink receptive coating, wherein the ink receptive coating layer includes a cross-linked polymer and an ink absorbing polymer, wherein the ink absorbing polymer has a solubility parameter of equal to or less than 9 (cal/cm).

Multilayer optical films having one or more reflection bands are provided. The films include alternating polymeric layers configured to selectively reflect and transmit visible light at a design angle of incidence, where the selective reflection includes first and second visible reflection bands. At least one of the first and second visible reflection bands is a first-order reflection.

Multilayer optical films having one or more reflection bands

The present invention is directed an oriented, foamed article having an integral security element, and a method of making the article. The oriented foam article is particularly useful in the preparation of printed security documents such as currency, stock and bond certificates, birth and death certificates, land titles and abstracts and the like.

Foam security substrate

Multilayer films are provided that exhibit a colored appearance when viewed at an oblique angle as a result of one or more reflection bands in the visible region of the spectrum. The films however provide no substantial reflection bands in either the visible or near infrared regions for light normally incident on the film. The films can be made to shift from clear at normal incidence to an arbitrary designed color at an oblique angle without necessarily becoming cyan.

Optical polarizing films

The present invention is directed an oriented, foamed article having an ink-receptive surface, and a method of making the article. The invention provides a printable substrate comprising at least one high melt-strength, oriented polypropylene foam layer having an ink-receptive surface. The high melt-strength polypropylene having a melt strength of 25 to 60 cN at 190&#xb0; C. The ink-receptive surface may comprise and oxidizing treatment, such as corona or flame-treatment of the foam surface, or may comprise an ink-receptive coating, such as a primer coating, on the foam surface. The oriented foam article is particularly useful in the preparation of printed security documents such as currency, stock and bond certificates, birth and death certificates, land titles and abstracts and the like.

Ink-receptive foam article

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Woodbury, MN, United States of America

James M Jonza