Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

3m Innovative Properties

Kenneth L Hanzalik

Sharon M Rozzi

George H Crawford, Jr

David J Scanlan

Jeffrey C Chang

Martin B Wolk

Terrance P Smith

Shri Niwas

William Vogel Dower

Doreen Catherine Lynch

Roger A Mader

John S Staral

Takuzo Ishida

Thomas A Isberg

Tran V Thien

Denise A Barrera

Richard E Bills

Loretta L Lucas

Douglas J Hall

Matthew R Lehmann

David B Running

Alyson C Phillips

Loretta L Freeman

Provided is a retroreflective article comprising a fibrous material and a perforated retroreflective material attached to said fibrous material. Embodiments of the article achieve desirable values under the ASTM F2731-11 Transmitted and Stored Energy Test, the E96/E96M-12 Moisture Vapor Transmission Rate Test, and ASTM E810-03 (2013) Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry.

Retroreflective article

The present invention provides a thermal transfer donor element that includes a transfer layer comprising a fully or partially crosslinked material. The crosslinked transfer layer can be imagewise transferred from the donor element to a proximate receptor by imaging the donor element with radiation that can be absorbed and converted into heat by a light-to-heat converter included in the donor element. The heat generated during imaging is sufficient to effect transfer of the crosslinked transfer layer.

Thermal transfer of crosslinked materials from a donor to a receptor

Color filter elements are prepared by the laser induced thermal transfer of colorant from a color donor to a transparent, non-birefringent substrate such as glass or polymeric film. Transparent pigments which are less prone to migration, more thermally stable, and considerably more lightfast than dyes can be used to prepare the color filter elements of this invention. Color filter elements are useful for elements in color displays such as liquid crystal display devices.

Methods for preparing color filter elements using laser induced transfer

Heat-developable photothermographic materials capable of providing stable color images of high resolution. These materials comprise a support bearing a layer of an image-forming composition comprising:

Ballasted leuco dyes and photothermographic element containing same

A photographic emulsion containing: a photosensitive silver halide; a light-insensitive, reducible silver source; a reducing agent for the light-insensitive, reducible silver source; and a binder consisting essentially of poly(vinyl butyral) having a poly(vinyl alcohol) content of about 17.5 to 21.0 wt. % and at least one solvent selected from the group consisting of: toluene, methyl ethyl ketone, acetone, tetrahydrofuran, and 1,4-dioxane. Additionally, a process for coating a substrate involving applying at least one layer of a molten thermoreversible organogel layer; causing it to gel; and removing residual solvent.

Thermoreversible organogels for photothermographic elements

Process for the simultaneous application of at least two molten, thermoreversible organogel layers to a substrate. The organogel layers can optionally contain dispersed additive ingredients, such as pigments. The organogel layers are coated onto a suitable substrate and then rapidly cooled or chilled to form a gel. Residual solvent is then removed. Multilayer coated films are thus formed with minimal interlayer mixing or interlayer diffusion of the additive ingredients.

Process for simultaneously coating multiple layers of thermoreversible

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Arden Hills, MN, United States of America

Kenneth L Hanzalik