Abstract: A fingerprint imaging system is described comprising a film including an optically transparent self-wetting adhesive layer adhered to an imaging surface of an electronic optical image sensor. Also described is a method of use of an optical imaging system, and a film and multilayer film suitable for use with a fingerprint imaging system.

Abstract: Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.

Abstract: A moisture-curable composition includes a polymer preparable by free-radical copolymerization of monomers comprising at least one monomer A and at least one monomer B. Monomer(s) A comprise free-radically polymerizable hydrolyzable silane. Monomer(s) B include a divalent group selected from the group consisting of —(CF2O)a—, —(CF2CF2O)b—, —(CF2CF2CF2O)c—, —(CF2CF2CF2CF2O)d—, —(CF2CF(CF3)O)e—, and combinations thereof, wherein a, b, c, d, and e represent integers in the range of from 0 to 130, and wherein 1?<a+b+c+d+e?130. A composite article includes a layer of a composition on a substrate. The composition comprises a cross- linked reaction product of components including the moisture-curable composition. Methods of making the composite article are also disclosed.

Abstract: Described herein is composite article comprising a substrate; and on at least one face of the substrate a multilayered coating disposed thereon.

Abstract: Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.

Abstract: Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.

Abstract: Laser-personalizable security articles include a multi-layer security document and an optically transparent processing tape. The multi-layer security document includes an optically transparent cover layer, a composite image and an imagable layer adjacent to the cover layer. The first surface of the cover layer is at least partially a microstructured surface, where the microstructured surface forms microlenses or a lenticular surface. The composite image is made by a collection of complete or partial images viewed through the microstructured surface of the cover layer. The composite image is located on or within the second surface of the cover layer. The imagable layer is a laser. The optically transparent processing tape sufficiently wets out on the misconstructured surface to render the microstructured surface invisible to a writing laser.

Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.

Abstract: Coatings for a surface, coating compositions, articles coated with a coating, and methods of coating are disclosed in which the coating comprises a polymer blend of polyurethane as a major component and at least one other polymer P2 having in comparison to polyurethane a higher peel strength to the surface to be coated, a higher percent elongation at break when cured, and a lower glass transition temperature, the polymer blend having been cured to form a peelable and flexible layer having a textured surface.

Abstract: A peelable, flexible coating for a surface is provided, comprising a polymer blend that comprises polyurethane as a major component, and at least a polymer P2 having in comparison to polyurethane a higher peel strength to the surface to be coated and a higher percent elongation at break when cured for imparting a flexible and a peelable quality to the coating.

Abstract: Processing tapes have special properties to permit them to be used to prepare laminate articles, such as security articles. The processing tapes include a backing, a pressure sensitive adhesive layer and a release surface covering the pressure sensitive adhesive layer. The backing is a dimensionally stable transparent polymeric film, and the surface on which the pressure sensitive is coated may be a treated surface. The pressure sensitive adhesive is a transparent pressure sensitive adhesive that includes a crosslinked (meth)acrylate-based polymer and has a refractive index in the range of 1.45-1.55. The (meth)acrylate-based polymer includes alkyl (meth)acrylate monomers and may include acidic monomers.

Abstract: Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.

Abstract: An article may include a biodata page defining a perimeter including an edge and a hinge layer attached to at least a portion of the biodata page. The hinge layer comprises a cross-linked polyurethane. In some examples, the hinge layer may include a cross-linked thermoset polyurethane.

Abstract: An article may include a flexible hinge comprising a first optical feature. The article also may include a biodata page comprising a second optical feature. The flexible hinge may be attached to a surface of the biodata page, and the second optical feature is substantially aligned with the first optical feature. The combination of the first optical feature and the second optical feature provides an optical effect, which may be destroyed or damaged if the flexible hinge is moved relative to the biodata page, e.g., if the flexible hinge is separated from the biodata page.

Abstract: Laser-personalizable security articles include multi-layer security documents. The multi-layer security document includes an optically transparent cover layer, a composite image and an imagable layer adjacent to the cover layer. The first surface of the cover layer is at least partially a microstructured surface, where the microstructured surface forms microlenses or a lenticular surface. The composite image is made by a collection of complete or partial images viewed through the microstructured surface of the cover layer. The composite image is located on or within the second surface of the cover layer. The imagable layer is a laser imagable layer. When imaged, a personalized second composite three dimensional image is created on or in the imagable layer.

Abstract: Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.

Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.

Abstract: Retroreflecting optical constructions are disclosed. A disclosed retroreflecting optical construction includes a retroreflecting layer that has a retroreflecting structured major surface, and an optical film that is disposed on the retroreflecting structured major surface of the retroreflecting layer. The optical film has an optical haze that is not less than about 30%. Substantial portions of each two neighboring major surfaces in the retroreflecting optical construction are in physical contact with each other.

Abstract: Incorporation of certain compounds into photothermographic materials provides materials with reduced initial image Dmin and improved Raw Stock Keeping film stability without unacceptable loss in sensitometric properties. These compounds include certain e-i) zinc salts of an aryl sulfonic acid or of a fluorinated C2-C6 carboxylic acid, e-ii) non-encapsulated alkali metal salts of an aryl sulfonic acid or of a fluorinated C2-C6 carboxylic acid, and e-iii) fluorinated C2-C6 carboxylic acids.

Abstract: Incorporation of certain compounds into photothermographic materials provides materials with reduced initial image Dmin and improved Raw Stock Keeping film stability without unacceptable loss in sensitometric properties. These compounds include certain e-i) zinc salts of an aryl sulfonic acid or of a fluorinated C2-C6 carboxylic acid, e-ii) non-encapsulated alkali metal salts of an aryl sulfonic acid or of a fluorinated C2-C6 carboxylic acid, and e-iii) fluorinated C2-C6 carboxylic acids.