3m Innovative Properties Company

Anthony F Schultz

Jonathan E Janoski

Duane Douglas Fansler

Carla S Thomas

Keith R Lyon

Kevin Michael Lewandowski

Arlin Lee Weikel

Corinne Elizabeth Lipscomb

Ronald S Steelman

Tien Yi T H Whiting

Tien Y H Whiting

Jayshree Seth

Hidetoshi Abe

Terry R Hobbs

Eric D Shockey

Taylor J Kobe

John Allen Wheatley

Douglas Scott Dunn

Kui Chen-Ho

John W Frank

Evan D Brutinel

Mary M Caruso Dailey

Jonah Shaver

Bryan T Whiting

Amanda K Hulke

Thomas P Klun

Kenneth L Smith

Timothy J Hebrink

Joseph D Rule

Shri Niwas

Todd D Jones

Alexander J Kugel

Kevin W Gotrik

John M Brandner

Nathan E Schultz

Fuming B Li

Bimal V Thakkar

Kathleen S Shafer

Daniel J Theis

Susannah C Clear

Scott J Jones

Michael W Kobe

Anthony M Renstrom

John M Sebastian

Thomas Q Chastek

John T Strand

Ying Xia

Thomas J Metzler

Sonja S Mackey

Peter O Rekow

Cyrus A Anderson

Robert F Watkins

Michael C Martin

Donald E Gustafson

David C Lueneburg

Tien YH Whiting

Tien Yi TH Whiting

The disclosed patterned wavelength-selective material and process for making the patterned wavelength-selective material uses patterned applied adhesive and a structurally weak wavelength-selective material that includes portions that contact the adhesive and break to remain in contact with the adhesive. In one embodiment, the wavelength-selective material comprises an array of sections with cuts at least partially through a wavelength-selective film at each section secured to the adhesive. In another embodiment, the wavelength-selective film comprises a transfer stack of layers.

Patterned wavelength-selective film

Wavelength-selective films are visibly apparent under the selective wavelength. Wavelength-selective films typically reflect off axis the selected wavelength and therefore can provide high-contrast against a background when applied in a pattern on a substrate. However, it is difficult to apply unique patterned embedded images from film. Disclosed is a cost-effective method and construction of a patterned wavelength-selective image to a substrate. In the disclosed wavelength-selective image, wavelength-selective film particles are applied to an adhesive pattern to create the wavelength-selective image.

Patterned wavelength-selective image

Articles that include at least one application layer; at least one bead bond layer (); a layer of optical elements () that are partially embedded in the at least one bead bond layer (); and at least one reflective layer () that is located functionally between the layer of optical elements () and the bead bond layer (), wherein the at least one bead bond layer (), the at least one application layer, or both comprise a cured product of an adhesive compositions that include polymerized units of one or more (meth)acrylate ester monomers derived from an alcohol containing 1 to 14 carbon atoms; at least one of urethane acrylate polymer or at least one acrylic copolymer; and at least one initiator.

Articles having adhesive layers including urethane acrylate polymer or acrylate copolymer

A film is described comprising a (meth)acrylic polymer and a polyvinyl acetal (e.g. butyral) resin. In some embodiments, the film has a glass transition temperature (i.e. Tg) ranging from 30&#xb0; C. to 60&#xb0; C. In some embodiments, the film has a gel content of at least 20% or greater. In some embodiments, the film has an elongation at break of at least 175%. The film typically comprises photoinitiator as a result of the method by which the film was made. The film may be a monolithic film or a layer of a multilayer film.

Acrylic polyvinyl acetal films and composition

A light directing article comprises an acrylic polyvinyl acetal film to protect the optical elements of the light directing article. The acrylic polyvinyl acetal film has a Tg of at least 30&#xb0; C. and comprises a (meth)acrylic polymer and polyvinyl acetal polymer. The acrylic polyvinyl acetal film is flexible and durable to mechanical deformation.

Acrylic polyvinyl acetal film for a light directing article

Sample partitioning devices and methods of making and using the same are described. A sample partitioning device includes a first film having an array of discrete stems each extending from a first major surface thereof, and a second film having an array of discrete wells formed into a second major surface thereof. The stems of the first film and the wells of the second film are mated with each other. The mated stems and wells are separable from each other, and during the removal of the stems from the wells, one or more voids are created inside the wells to suction an aqueous test sample into the wells.

Stem-well films for sample partitioning

A film is described comprising a (meth)acrylic polymer and polyvinyl acetal polymer composition, wherein the film comprises a structured layer.

Acrylic films comprising a structured layer

A film is described comprising a first film layer having a Tg ranging from 30&#xb0; C. to 60&#xb0; C. The first film layer comprises a (meth)acrylic polymer and polyvinyl acetal polymer composition. The film further comprises a second layer proximate the first film layer. The second layer is different than the first film layer. The second may be a cured (meth)acrylic polymer film or coating; a backing such as thermoplastic polymer, woven or nonwoven fabrics, metal foils, paper, foams; or a coverfilm such as a fluoropolymer.

Acrylic polyvinyl acetal films comprising a second layer

An adhesive article is described comprising a foamed adhesive layer and a non-foamed adhesive layer. The adhesive of each adhesive layer comprises a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and optionally a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications and is designed to fail cohesively.

Multilayer adhesive article

A film is described comprises a (meth)acrylic polymer and a polyvinyl acetal (e.g. butyral) resin. The film has a tensile elastic modulus of at least 1 MPa at 25&#xb0; C. and 1 hertz and a glass transition temperature (i.e. Tg) less than 30 C. The film typically comprises photoinitiator as a result of the method by which the film was made. In one embodiment, the film is heat bondable and further comprising a backing.

Acrylic polyvinyl acetal films, composition, and heat bondable articles

A graphic film is described comprising a first film layer having a Tg ranging from 30&#xb0; C. to 60&#xb0; C. The first film layer comprises a (meth)acrylic polymer and polyvinyl acetal polymer. In typical embodiments, the graphic film further comprises a design, image, graphic, or text. Also described is a method of forming a graphic film comprising providing a film comprising a first film layer having a Tg ranging from 30&#xb0; C. to 60&#xb0; C. comprising a (meth)acrylic polymer and polyvinyl acetal polymer and providing a graphic proximate the film.

Acrylic polyvinyl acetal graphic films

A film is described comprising a (meth)acrylic polymer and polyvinyl acetal polymer composition. A layer of an adhesive composition is disposed proximate the film. The adhesive composition has a tensile elastic modulus of less than 1 MPa at 25&#xb0; C. and 1 hertz.

Acrylic polyvinyl acetal films comprising an adhesive layer

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Forest Lake, MN, United States of America

Anthony F Schultz