3m Innovative Properties Company

Christopher P Gerlach

Dennis Edward Vogel

Peiwang Zhu

Tzu-Chen Lee

David Adams Ender

Jeffrey A Peterson

Stephen A Johnson

David J Kinning

Christopher A Haak

Tommie W Kelley

Peggy S Willett

Marie A Boulos

Gregory F King

Bert T Chien

Maria A Appeaning

Ronald K Thery

Victor Ho

David W Meitz

Kevin T Huseby

Reema Chatterjee

Madison P Bennett

Anna M Clausen

Scott M LeBow

Uncured aqueous composition comprising surfactant and a blend of (a) a first sulfonated polyester having a glass transition temperature not greater than 75° C. that is not sulfonated polyethylene naphthalate, (b) a second, sulfonated polyester that is a sulfonated polyethylene naphthalate, (c) melamine-formaldehyde crosslinker, and (d) an epoxy silane coupling agent; and cured composition thereof. Compositions described herein are useful, for example, for making primed film for release liners applications.

Composition and article comprising the same

Articles and laminates include a substrate with a first polyester surface and a second polyester surface, a crosslinked polyurethane-based primer coated on at least the first polyester surface, and an optically clear heat activated adhesive adjacent to the crosslinked polyurethane-based primer. The articles and laminates are prepared by applying a polyurethane-based dispersion and a crosslinker on at least one polyester surface, drying the applied coating, heating while stretching the substrate and the coating to form a crosslinked primer layer on the stretched polyester surface, and applying an optically clear heat activated adhesive onto the crosslinked primer layer.

Primer compositions for optical films

The present application generally relates to retroreflective articles and methods of making retroreflective articles. Some embodiments include a body layer having an elastic modulus of equal to or greater than 1750 MPa, a plurality of truncated cube corner elements, and a polymeric layer between the body layer and the cube corner elements, the polymeric layer having an elastic modulus of less than 1750 MPa.

Retroreflective sheeting including a low elastic modulus layer

Acene-thiophene copolymers with attached silylethynyl groups are provided that can be used in electronic devices. The copolymers are often soluble in common organic solvents and can be part of a coating composition.

Acene-thiophene copolymers with silethynly groups

Electronic devices that include an acene-thiophene copolymer and methods of making such electronic devices are described. The acene-thiophene copolymer can be used, for example, in a semiconductor layer or in a layer positioned between a first electrode and a second electrode.

Electronic devices containing acene-thiophene copolymers

Acene-thiophene copolymers are provided that can be used as semiconductor materials in electronic devices. The acene-thiophene copolymers are of Formula I. In Formula I, Ac is a radical of an acene having 2 to 5 fused aromatic rings. The acene can be unsubstituted or substituted with a substituent selected from an alkyl, alkoxy, thioalkyl, aryl, aralkyl, halo, haloalkyl, hydroxyalkyl, heteroalkyl, alkenyl, or combinations thereof. Divalent group Q is selected from Formula III where each R1 and R2 group is independently selected from hydrogen, alkyl, alkoxy, thioalkyl, aryl, aralkyl, halo, haloalkyl, hydroxyalkyl, heteroalkyl, alkenyl, or combinations thereof. The subscript n in Formula I is an integer equal to at least 4. The asterisks in Formula I indicate the location of attachment to another group such as another repeat unit of formula &#x2014;Ac-Q-.

Acene-thiophene copolymers

Electronic devices that include an acene-thiophene copolymer and methods of making such electronic devices are described. More specifically, the acene-thiophene copolymer has attached silylethynyl groups. The copolymer can be used, for example, in a semiconductor layer or in a layer positioned between a first electrode and a second electrode.

Electronic devices containing acene-thiophene copolymers with silylethynyl groups

Semiconductor devices are described that include a semiconductor layer that contains a trans-1,2-bis(acenyl)ethylene compound. The acenyl group is selected from 2-naphtyl, 2-anthracenyl, or 2-tetracenyl. Additionally, methods of making semiconductor devices are described that include depositing a semiconductor layer that contains a trans-1,2-bis(acenyl)ethylene compound.

Semiconductors containing trans-1,2-bis(acenyl)ethylene compounds

Acene-thiophene compounds are disclosed that are useful as organic semiconductors. The compounds, when used as the semiconductor layer in organic thin-film transistors exhibit device characteristics, like charge-carrier mobilities and current on/off ratios, that are comparable to those of pentacene. Also described are semiconductor devices comprising at least one compound of the invention; and articles comprising the semiconductor devices such as thin film transistors or transistor arrays, and electroluminescent lamps.

Acene-thiophene semiconductors

Semiconductor devices are described that include a semiconductor layer that comprises a perfluoroether acyl oligothiophene compound, preferably an &#x3b1;,&#x3c9;-bis-perfluoroether acyl oligothiophene compound. Additionally, methods of making semiconductor devices are described that include depositing a semiconductor layer that contains a perfluoroether acyl oligothiophene compound, preferably an &#x3b1;,&#x3c9;-bis(2-perfluoroether acyl oligothiophene compound.

Perfluoroether acyl oligothiophene compounds

Semiconductors containing perfluoroether acyl oligothiophene compounds

Bis(2-acenyl)acetylene compounds that are useful as organic semiconductors are disclosed. The compounds, when used as the active layer in OTFTs exhibit device characteristics, like charge-carrier mobilities and current on/off ratios, that are comparable to those of pentacene. Also described are semiconductor devices comprising at least one compound of the invention; and articles comprising the semiconductor devices such as thin film transistors or transistor arrays, and electroluminescent lamps.

Growing community of inventors

Petaluma, CA, United States of America

Christopher P Gerlach