Electroluminescent lamp using multilayer optical film

Reflective article with concealed retroreflective pattern

Retroreflective dichroic reflector

Glittering cube-corner retroreflective sheeting

Method of making glittering cube-corner retroreflective sheeting

Electroluminescent lamp using multilayer optical film

Formed ultra-flexible retroreflective cube-corner composite sheeting with target optical properties and method for making same

System and method for making a film having a matte finish

A system and a method for providing a film having a matte finish. The system includes means for providing a coated substrate, the coated substrate comprising a first coatable material applied to a substrate, the coatable material forming a first major surface of the coated substrate; means for changing the viscosity of the first coatable material from a first viscosity to a second viscosity; a face-side roller having an outer surface positioned to contact the first major surface of the coated substrate to impart a matte finish thereon; and optionally, means for hardening the first coatable material. The method of the invention includes the steps of (1) providing a coated substrate comprising a coatable material disposed on a substrate, the coatable material providing a first major surface of the coated substrate; (2) changing the viscosity of the coatable material from the initial viscosity to a second viscosity; (3) contacting the first major surface of the coated substrate with at least one face-side roller to impart a matte finish; and (4) optionally, hardening the coatable material to provide the film.

System and method for making a film having a matte finish

A system and a method for providing a film having a matte finish is described. A coatable material is applied to a substrate. The viscosity of the coatable material is changed and a face-side roller contacts the coatable material to impart a matte finish thereon; and hardening the coatable material.

Methods for making differentially pattern cured microstructured articles

Methods for making differentially pattern cured microstructured articles are disclosed, using a molding tool having a microstructured surface, a patterned irradiation to generate irradiate and non-irradiated regions in a radiation curable resin. Different combinations of molding tools and patterned irradiation provide numerous variants of differentially pattern cured microstructured articles without requiring costly modification of the molding tools.

Continuous additive manufacturing methods

A continuous method of manufacturing adhesives is provided. The method includes obtaining an actinic radiation-polymerizable adhesive precursor composition disposed on a major surface of an actinic radiation-transparent substrate and irradiating a first portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a first irradiation dosage. The method further includes moving the actinic radiation-transparent substrate and irradiating a second portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a second irradiation dosage. Optionally, the method also includes irradiating a third portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate prior to moving the substrate. The first irradiation dosage and the third irradiation dosage are often not the same, thereby forming an integral adhesive having a variable thickness in an axis normal to the actinic radiation-transparent substrate.

Method of making glittering cube-corner retroreflective sheeting

A method of making a glittering cube-corner sheeting, which method includes: (a) providing a first retroreflective sheeting that includes an array of cube-corner elements arranged in a repeating pattern; and (b) exposing the first retroreflective sheeting to heat, pressure, or a combination thereof to produce a second retroreflective sheeting that comprises an array of cube-corner elements that are randomly tilted; or which method may comprise: (a) providing a mold that has a structured surface that includes a multiplicity of cube-comer elements, the cube-corner elements each including a base plane and three faces, the cube-corner elements being arranged such that the base planes do not reside in the same plane when the sheeting is laid flat; and (b) forming a cube-corner sheeting from the mold.

Ultra-flexible retroreflective cube corner composite sheetings and methods of manufacture

A method for manufacturing flexible cube corner retroreflective sheeting comprising the steps of: a) providing a tool having a molding surface; b) applying to the molding surface a volume of a flowable resin composition; c) contacting the resin composition with a first major surface of an overlay film; d) minimizing excess resin composition; e) curing the resin composition to form a sheeting comprising an array of cube corner elements bonded to the overlay film; f) removing the sheeting from the tool; and g) applying mechanical stress to the sheeting so as to cause a fractured separation of substantially each individual cube corner element from surrounding cube corner elements. Also, flexible retroreflective sheetings comprising: a) a two dimensional array of substantially independent cube corner elements, the array comprising a first polymeric material, and b) an overlay film having two major surfaces and comprising of a second polymeric material, the array being bonded to the first major surface of the overlay film. Also safety devices incorporating such sheetings.

Reflective polarizer display

A brightness enhanced reflective polarizer includes a reflective polarizer and a structured surface material.

Brightness enhancing film composition

Polymerizable compositions particularly useful for brightness enhancing films.

Light redirecting solar control film

A light redirecting solar control film includes a multilayer film that transmits visible light and reflects infrared light, and a light redirecting layer adjacent to the multilayer film forming a light redirecting solar control film. The light redirecting layer includes a major surface forming a plurality of prism structures.

Microoptics for glazing

The present disclosure provides lamination transfer films and use of the lamination transfer films, particular in the fabrication of architectural glass elements, such as those used in Insulated Glass Units (IGUs). The lamination transfer films may be used to transfer functional layers and structures. The lamination transfer films may include a support film that can be removed during the transfer process, and the transferred materials are primarily inorganic. The resulting transferred structures on glass generally have high photo- and thermal-stability, and therefore can successfully be applied to the glass surfaces that are interior to the cavity within an IGU. The lamination transfer films can also be patterned such that macroscopic patterns of microoptical elements can be applied on a glass surface.

Microoptics for glazing

The present disclosure provides lamination transfer films and use of the lamination transfer films, particular in the fabrication of architectural glass elements, such as those used in Insulated Glass Units (IGUs). The lamination transfer films may be used to transfer functional layers and structures. The lamination transfer films may include a support film that can be removed during the transfer process, and the transferred materials are primarily inorganic. The resulting transferred structures on glass generally have high photo- and thermal-stability, and therefore can successfully be applied to the glass surfaces that are interior to the cavity within an IGU. The lamination transfer films can also be patterned such that macroscopic patterns of microoptical elements can be applied on a glass surface.

Microoptics for glazing

The present disclosure provides lamination transfer films and use of the lamination transfer films, particular in the fabrication of architectural glass elements, such as those used in Insulated Glass Units (IGUs). The lamination transfer films may be used to transfer functional layers and structures. The lamination transfer films may include a support film that can be removed during the transfer process, and the transferred materials are primarily inorganic. The resulting transferred structures on glass generally have high photo- and thermal-stability, and therefore can successfully be applied to the glass surfaces that are interior to the cavity within an IGU. The lamination transfer films can also be patterned such that macroscopic patterns of microoptical elements can be applied on a glass surface.

Microoptics for glazing

The present disclosure provides lamination transfer films and use of the lamination transfer films, particular in the fabrication of architectural glass elements, such as those used in Insulated Glass Units (IGUs). The lamination transfer films may be used to transfer functional layers and structures. The lamination transfer films may include a support film that can be removed during the transfer process, and the transferred materials are primarily inorganic. The resulting transferred structures on glass generally have high photo- and thermal-stability, and therefore can successfully be applied to the glass surfaces that are interior to the cavity within an IGU. The lamination transfer films can also be patterned such that macroscopic patterns of microoptical elements can be applied on a glass surface.

Microoptics for glazing

The present disclosure provides lamination transfer films and use of the lamination transfer films, particular in the fabrication of architectural glass elements, such as those used in Insulated Glass Units (IGUs). The lamination transfer films may be used to transfer functional layers and structures. The lamination transfer films may include a support film that can be removed during the transfer process, and the transferred materials are primarily inorganic. The resulting transferred structures on glass generally have high photo- and thermal-stability, and therefore can successfully be applied to the glass surfaces that are interior to the cavity within an IGU. The lamination transfer films can also be patterned such that macroscopic patterns of microoptical elements can be applied on a glass surface.

Light-stable structures

An assembly including a polymeric film and an effective amount of an ultraviolet light-absorbing compound in an inert environment. The inert environment is bounded on at least one side by a pane, which is at least partially transparent to ultraviolet light. The ultraviolet light-absorbing compound includes a triazine. The structure may also include resin, adhesive and primer layers.

Microoptics for glazing

The present disclosure provides lamination transfer films and use of the lamination transfer films, particular in the fabrication of architectural glass elements, such as those used in Insulated Glass Units (IGUs). The lamination transfer films may be used to transfer functional layers and structures. The lamination transfer films may include a support film that can be removed during the transfer process, and the transferred materials are primarily inorganic. The resulting transferred structures on glass generally have high photo- and thermal-stability, and therefore can successfully be applied to the glass surfaces that are interior to the cavity within an IGU. The lamination transfer films can also be patterned such that macroscopic patterns of microoptical elements can be applied on a glass surface.

A composite used for light control or privacy

A composite including a polymeric film having a first generally planar major surface and an opposite second major surface defined by a multiplicity of elongate parallel contiguous ridge portions. The ridge portions each have a generally triangular cross section and elongate obscured and transmitting second major surface portions intersecting at the apex of the ridge with the obscured second major surface portion being on the side of the ridge generally facing a first end of the sheet and the transmitting second major surface portions being on the side of the ridge portions adjacent a second end of the sheet. The film can provide visual transmission between its first major surface and the transmitting second major surface portions while coatings along the obscured second major surface portions prevent viewing of visual images through the film; whereas the composite can also provide light transmission between the first major surface and the transmitting second major surface portions, while the coatings along the obscured second major surface portions restrict light transmission.

Multilayer optical adhesives and methods of making same

A multilayer optical adhesive including a first viscoelastic or elastomeric adhesive layer and a second viscoelastic or elastomeric adhesive layer. A crosslinked or soluble resin layer may be disposed between the first viscoelastic or elastomeric adhesive layer and the second viscoelastic or elastomeric adhesive layer or the first viscoelastic or elastomeric adhesive layer may be immediately adjacent to the second viscoelastic or elastomeric adhesive layer. An interface between immediately adjacent layers is structured and there is a difference in refractive indices across the interface.

Vacuum glazing pillars for insulated glass units

Vacuum insulated glass units having layered pillars. The glass units include two glass panes and an edge seal between the glass panes with a substantial vacuum gap between them. A plurality of pillars are located between the glass panes as spacers to maintain the vacuum gap. The pillars have a sintered ceramic, alpha alumina, or zirconia body with a tapered sidewall and a functional layer on a surface of the body.

Post-formable multilayer optical films and methods of forming

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.

Formed ultra-flexible retroreflective cube-corner composite sheeting with target optical properties and method for making same

A retroreflective sheeting having a multiplicity of discrete, cube-corner elements cured in situ on a transparent, polymeric overlay film deformed into a three-dimensional structure so that base edges of a plurality of cube-corner elements are non-planar with respect to one another. The retroreflective article preferably has at least one target optical property. The present invention is also directed to a method of deforming the retroreflective sheeting to form a retroreflective article in which the base edges of a plurality of cube-corner elements are non-planar with respect to one another.

Mold for producing glittering cube-corner retroreflective sheeting

A mold 79 that includes an array of cube-corner elements 80 that are arranged in the array such that a retroreflective cube-corner sheeting 60 that is formed thereon is capable of glittering when light is incident on the sheeting. The array may be defined by three sets of intersecting grooves 25, 26, 27 where each groove set includes two or more generally parallel grooves. At least one groove in at least one of the sets has faces 22 of adjacent cube-corner elements 30a, 30b arranged such that a dihedral angle alpha located between adjacent faces varies along the groove(s) in the set.

Glittering cube-corner article

A glittering non-retroreflective sheeting 60 includes an array of cube-corner elements 30 that are arranged in the array such that the sheeting glitters when light is incident thereon. The glitter is in the form of many discrete points of light 68 that tend to blink off and on. The array may be configured such that a dihedral angle α varies between adjacent cube faces 31 of adjacent cube-corner elements 30 in each groove in one of the groove sets 45, 46, or 47 and such that the base plane 36 are not parallel to each other when the sheeting 60 is laid flat. Preferably, the dihedral angle α between faces 31 of adjacent cube-corner elements 30 varies in essentially all of the grooves such that the cube-corner elements are randomly tilted throughout the array. The glitter can make the sheeting very useful for aesthetic or decorative applications.

Reflective polarizer display

【課題】 周囲光とバックライトの照明の両方の条件で適当な明るさとコントラストが得られる反射偏光子ディスプレイの提供。 【解決手段】 多層の反射偏光子（１２）が説明されている。このエレメントは、光学ディスプレイを形成するために、光学キャビティ（２４）とＬＣＤモジュール（１６）の間に配置されている。反射偏光子は光のいくらかを光学キャビティ（２４）の中へ反射し、光はそこでランダム化されて、最終的に、ディスプレイから、透過されるべき正しい偏光状態で表れる。 【選択図】 図１

Method of making glittering cube-corner retroreflective sheeting

A method of making a glittering cube-corner sheeting, which method comprises : a) providing a first retroreflective sheeting that includes an array of cube-corner elements arranged in a repeating pattern; a nd b) exposing the first retroreflective sheeting to heat, pressure, or a combination thereof to produce a second retroreflective sheeting that comprises an array of cube-corner elements that are randomly tilted, the cube-corner elements becoming randomly tilted from the heat, pressure or the combination thereof other than through securing a seal film to the array that is arranged in the repeating pattern; or which method may comprise: forming a cube-corner sheeting from a mold that has a structured surface that includes a multiplicity of cube-comer elements, the cube-comer elements each including a base plane and three faces, the cube-corner elements being arranged such that the base plan es do not reside in the same plane when the sheeting is laid flat.

Uniaxially oriented articles having structured surface

Uniaxially oriented articles having structured surfaces are described. The articles have dimensional relationships as follows: the (a) ratio of the thickness of the body (Z') to the height of the geometric feature (P') is at least about 2; or (b) the ratio of body thickness to feature height (Z':P') is at least about 1 and the ratio of feature height to feature separation (P':FS') is at least about 1; or (c) the ratio of body thickness to feature height (Z':P') is at least about 1 and the ratio of feature base width to feature separation (BW': FS') is at least about 1; or (d) the ratio of body thickness to feature base width (Z':BW') is at least about 3; or (e) the ratio of body thickness to feature base width (Z':BW') is at least about 1 and the ratio of feature height to feature separation (P':FS') is at least about 1; or (f) the ratio of body thickness to feature base width (Z':BW') is at least about 1 and the ratio of feature base width to feature separation (BW':FS') is at least about 1; or (g) the ratio of feature base width to feature top width (BW':TW') is at least about 2 and the ratio of feature base width to feature separation (BW':FS') is at least about 1.

Light redirecting solar control film

Electroluminescent lamp using multilayer optical film

Mold for producing glittering cube-corner retroreflective sheeting

A mold (79) that comprises an array of cube-corner elements (80) that are arranged in the array such that a retroreflective cube-corner sheeting (60) that is formed thereon is capable of glittering when light is incident thereon.

Method of forming a lighting system

A method of forming a lighting system comprises providing a cavity having at least a first array of first optical elements and a second array of second optical elements that have a different shape than the first array, filling the cavity with a curable resin, applying a secondary optical element to the curable resin in alignment with the first optical array, curing the resin to form a cured assembly, and removing the cured assembly from the cavity.

Solar control film with light redirection

Una película (10) de control solar con redireccionamiento de la luz que comprende: una película multicapa (20) polimérica que transmite, al menos, el 50% de todas las longitudes de ondas de la luz visible y refleja, al menos, el 50% de toda la luz infrarroja de 850 nm a 1100 nm; y una capa (30) de redireccionamiento de la luz adyacente a la película multicapa (20) que forma una película de control solar con redireccionamiento de la luz, comprendiendo la capa (30) de redireccionamiento de la luz una superficie grande (31) que forma una pluralidad de estructuras prismáticas (32), en donde la capa (30) de redireccionamiento de la luz se une de forma adhesiva a o se forma de manera íntegra con la película multicapa (20) por extrusión o gofrado. A solar control film (10) with light redirection comprising: a polymeric multilayer film (20) that transmits at least 50% of all wavelengths of visible light and reflects at least 50 % of all infrared light from 850 nm to 1100 nm; and a light redirection layer (30) adjacent to the multilayer film (20) that forms a solar control film with light redirection, the light redirection layer (30) comprising a large surface (31) that it forms a plurality of prismatic structures (32), wherein the light redirecting layer (30) is adhesively bonded to or formed integrally with the multilayer film (20) by extrusion or embossing.

Slip control sheeting and articles covered with same

A slip control sheeting can comprise a backing (12) having a first end and a second major surface (14, 16) and an array of protrusions (22) on the first major surface. The protrusions can be pyramids with polygonal bases or pyramidal frustums with polygonal bases. Alternatively, the protrusions can comprise posts having non-planar sides and bases on the first major surface wherein the posts taper radially inwardly from their bases to their tops, e.g., cones or conical frustums with circular bases. The sheeting can further comprise at least one of a layer of adhesive (18) on the second major surface, a reinforcing web, or a mechanical fastening component for fastening the backing to a substrate. The sheeting can be made so that it retroreflects less than about 10 percent of a beam of electromagnetic radiation which is incident at any angle to the second major surface, the electromagnetic radiation having any wavelength from about 0.39 micron to about 1,000 microns.

Dicing tape and die attach adhesive with patterned backing

Provided are a tape, apparatus, and method that relate generally to a single layer adhesive which functions as a dicing tape and also as a die attach adhesive for dicing thinned wafers and subsequent die attach operations of the diced chips in semiconductor device fabrication. The tape, apparatus, and method include a backing with a surface modification that includes a pattern.

Uniaxially oriented articles having structured surface

Uniaxially oriented articles having structured surfaces are described. The articles have dimensional relationships as follows: the (a) ratio of the thickness of the body (Z') to the height of the geometric feature (P') is at least about 2; or (b) the ratio of body thickness to feature height (Z':P') is at least about 1 and the ratio of feature height to feature separation (P':FS') is at least about 1; or (c) the ratio of body thickness to feature height (Z':P') is at least about 1 and the ratio of feature base width to feature separation (BW': FS') is at least about 1; or (d) the ratio of body thickness to feature base width (Z':BW') is at least about 3; or (e) the ratio of body thickness to feature base width (Z':BW') is at least about 1 and the ratio of feature height to feature separation (P':FS') is at least about 1; or (f) the ratio of body thickness to feature base width (Z':BW') is at least about 1 and the ratio of feature base width to feature separation (BW':FS') is at least about 1; or (g) the ratio of feature base width to feature top width (BW':TW') is at least about 2 and the ratio of feature base width to feature separation (BW':FS') is at least about 1.

Vacuum glazing pillars for insulated glass units

Vacuum insulated glass units having layered pillars. The glass units include two glass panes and an edge seal between the glass panes with a substantial vacuum gap between them. A plurality of pillars are located between the glass panes as spacers to maintain the vacuum gap. The pillars have a sintered ceramic, alpha alumina, or zirconia body with a tapered sidewall and a functional layer on a surface of the body.

Cationically co-curable polysiloxane release coatings

The invention provides a radiation curable release coating composition comprising: (a) about 1 to about 50 percent by weight of a cationically reactive polydiorganosiloxane liquid rubber having formula (I) wherein R are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl wherein at least about 50 % of the total number of silicon atoms have two methyl groups bonded thereto; E is an organic monovalent functional group comprising from about 1 to about 20 carbon atoms having at least one cationically co-reactive functional group; a and b both represent integers, wherein the sum of a plus b is an integer of about 10 to about 1200; b has a value ranging from about 0 to about 0.2a; a is an integer of about 10 to about 1000; and M is a silyl group which must contain at least one cationically co-reactive functional group when b=0 and may contain at least one cationically co-reactive group when b is greater than 0; (b) about 50 to about 99 percent by weight of at least one cationically co-reactive monomer copolymerizable with said cationically co-reactive functional group of said polydiorganosiloxane liquid rubber; wherein the percentages of (a) and (b) are based on the total weight of (a) plus (b); and (c) about 0.5 to about 4 parts by weight of a photoactive radiation activatable cationically reactive catalyst based on the weight of (a) plus (b). The invention also provides release coatings and methods of making release coatings.

Methods for making differentially pattern cured microstructured articles

Methods for making differentially pattern cured microstructured articles are disclosed, using a molding tool having a microstructured surface, a patterned irradiation to generate irradiate and non-irradiated regions in a radiation curable resin. Different combinations of molding tools and patterned irradiation provide numerous variants of differentially pattern cured microstructured articles without requiring costly modification of the molding tools.

Polymeric photonic crystals with co-continuous phases

AN OPTICAL ELEMENT(100,210,310,400,440,450,460,600,610,620,700,830,1200,1310) IS FORMED BY CO-EXTRUDING TO HAVE AN ARRANGEMENT OF POLYMER SCATTERING FIBERS(104,304,404) WITHIN A POLYMER MATRIX(102,702). THE SCATTERING FIBERS LIE SUBSTANTIALLY PARALLEL TO A FIRST AXIS. THE SCATTERING FIBERS(104,304,404) ARE ARRANGED AT POSITIONS ACROSS THE CROSS-SECTION OF THE POLYMER MATRIX(102,702) TO SCATTER LIGHT TRANSVERSELY INCIDENT ON THE OPTICAL ELEMENT IN A DIRECTION SUBSTANTIALLY ORTHOGONAL TO THE FIRST AXIS. THE POSITIONS OF THE SCATTERING FIBERS(104,304,404) ACROSS THE CROSS-SECTION OF THE OPTICAL ELEMENT MAY BE SELECTED SO AS TO FORM A TWO-DIMENSIONAL PHOTONIC CRYSTAL STRUCTURE FOR LIGHT TRANSVERSELY INCIDENT ON THE OPTICAL ELEMENT.

Reflective polarizer display

A multiple layer reflective polarizer (12) is described. This element is pla ced between an optical cavity (24) and an LCD module (16) to form an optical display. The reflective polarizer reflects some ligh t into the optical cavity (24) where it is randomized an d may ultimately emerge with the correct polarization to be transmitted out of the display.

Composite polymeric optical films with co-continuous phases

Structured lamination transfer films and methods

Lamination transfer films and methods for transferring a structured layer to a receptor substrate. The transfer films include a carrier substrate having a releasable surface, a sacrificial template layer applied to the releasable surface of the carrier substrate and having a non-planar structured surface, and a thermally stable backfill layer applied to the non-planar structured surface of the sacrificial template layer. The sacrificial template layer is capable of being removed from the backfill layer, such as via pyrolysis, while leaving the structured surface of the backfill layer substantially intact.

Pressure-sensitive poly(n-vinyl lactam) adhesive composition and method for producing and using same

A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially unirradiated plasticizer in an amount sufficient to form a cohesive, pressure-sensitive adhesive composition. The composition is useful as a biomedical adhesive for transmitting or receiving electrical signals as a component (14) of a biomedical electrode (10).

Method of making glittering cube-corner retroreflective sheeting

The invention is directed towards a method of making a glittering retroreflective cube-corner sheeting, which method comprises: forming a glittering retroreflective cube-corner sheeting from a mold that has a structured surface that includes an array of cube-corner elements that are arranged such that a dihedral angle .alpha. between faces of adjacent cube-corner elements varies to such an extent that a cube-corner sheeting that is formed thereon glitters when exposed to light and a method of making a retroreflective product therefrom.

Reinforced optical films

Optical films having structured surfaces are used, inter alia, for managing the propagation of light within a display. As displays become larger, it becomes more important that the film be reinforced so as to maintain rigidity. An optical film of the invention has a first layer comprising inorganic fibers embedded within a polymer matrix. A second layer having a structured surface, for providing an optical function to light passing therethrough, is attached to the first layer. The film may have various beneficial optical properties, for example, light that propagates substantially perpendicularly through the first layer may be subject to no more than a certain level of haze or light incident on the film may be subject to a minimum value of brightness gain. Various methods of manufacturing the films are described.

Lightguide including laminated extraction film

Reflective polarizer display

A multiple layer reflective polarizer (12) is described. This element is placed between an optical cavity (24) and an LCD module (16) to form an optical display. The reflective polarizer reflects some light into the optical cavity (24) where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.

Uv-protected multilayered window panes

An assembly including a polymeric film and an effective amount of an ultraviolet light-absorbing compound in an inert environment. The inert environment is bounded on at least one side by a pane, which is at least partially transparent to ultraviolet light. The ultraviolet light-absorbing compound includes a triazine. The structure may also include resin, adhesive and primer layers.

Microtextured catalyst transfer substrate

A membrane electrode assembly is provided comprising an ion conducting membrane and one or more electrode layers that comprise nanostructured elements, wherein the nanostructured elements are in incomplete contact with the ion conducting membrane. This invention also provides methods to make the membrane electrode assembly of the invention. The membrane electrode assembly of this invention is suitable for use in electrochemical devices, including proton exchange membrane fuel cells, electrolyzers, chlor-alkali separation membranes, and the like.

Conspicuity marking system

A conspicuity marking system (10, 80) includes a light guide (12, 82) which has at least one optically reflective surface for propagating light through the light guide and a retroreflective light extractor (20, 84) for extracting light (52) propagating through the light guide and for retroreflecting light (54) from an external light source incident upon the system. Light propagating through the light guide (20, 82) which is transmitted into the light extractor (20, 84) is reflected back through the light guide such that it exits the light guide at a location displaced from the retroreflective light extractor. Light (54) from an external light source which is incident on the system passes through the light guide (12, 82) and is retroreflected toward the light source by the retroreflective light extractor (20, 84).

Dose radiometer

The invention includes a method for collecting radiation. An electromechanical radiation collection device is disposed in a roll to collect radiation directed at the roll. The invention is also an apparatus comprising a roll having an outer surface. An electromechanical radiation collection device is disposed in the roll.

Methods of forming molds and methods of forming articles using said molds

A method of forming a working mold including: placing a substrate (610) on an electrode in a chamber, the substrate having at least a first structured surface (620) and the substrate including a thermoset polymeric material; introducing a release (630) layer forming gas into the chamber, wherein the release layer forming gas includes silicon containing gas and oxygen gas in an atomic ratio of not greater than about 200; providing power to the electrode to create a plasma of the release layer forming gas within the chamber; and depositing a release layer formed from the release layer forming gas on at least the first structured surface of the substrate to form.a working mold.

Uv-protected multilayered window panes

An assembly including a polymeric film and an effective amount of an ultraviolet light-absorbing compound in an inert environment. The inert environment is bounded on at least one side by a pane, which is at least partially transparent to ultraviolet light. The ultraviolet light-absorbing compound includes a triazine. The structure may also include resin, adhesive and primer layers.

Dose radiometer

Optical elements containing a polymer fiber weave

A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.

Mold for producing glittering cube-corner retroreflective sheeting

A mold (79) that comprises an array of cube-corner elements (80) that are arranged in the array such that a retroreflective cube-corner sheeting (60) that is formed thereon is capable of glittering when light is incident thereon.

Uniaxially oriented birefringent article having a structured surface

An article, such as a film, comprising a body portion and a surface portion is provided. The body portion has (i) a first and a second surface, and (ii) first and second in-plane axes that are orthogonal with respect to each other and a third axis that is mutually orthogonal to the first and second in-plane axis in a thickness direction of the body. The surface portion comprises a linear geometric feature disposed on the first surface of the body in a direction substantially parallel to the first in-plane axis of the polymeric body. The article has (i) a first index of refraction (n1) along the first in-plane axis, (ii) a second index of refraction (n2) along the second in-plane axis, and (iii) a third index of refraction (n3) along the third axis, wherein n2 and n3 are substantially the same but substantially different from n1; and wherein the uniaxially oriented polymeric film has a relative birefringence of 0.3 or less and wherein the ratio of the thickness of the body to the height of the geometric feature is at least 2.

Display incorporating reflective polarizer

A display includes a liquid crystal display panel, an optical cavity producing substantially collimated light and a birefringent reflective polarizer.

Ultra-flexible retroreflective cube corner composite sheetings and methods of manufacture

A method for manufacturing flexible cube corner retroreflective sheeting comprising the steps of: a) providing a tool having a molding surface; b) applying to the molding surface a volume of a lowable resin composition; c) contacting the resin composition with a first major surface of an overlay film; d) minimizing excess resin composition; e) curing the resin composition to form a sheeting comprising an array of cube corner elements bonded to the overlay film; f) removing the sheeting from the tool; and g) applyingmechanical stress to the sheeting so as to cause a fractured separation of substantially each individual cube corner element from surrounding cube corner elements. Also, flexible retroreflective sheetings comprising: a) a two-dimensional array of substantially independent cube corner elements, the array comprising a first polymetric material, and b) an overlay film having two major surfaces and comprising a second polymeric material, the array being bonded to the first major surface of the overlay film. Also safety devices incorporating such sheetings.

REFLECTING ARTICLE WITH HIDDEN RETRORREFLECTANT DESIGN.

Un artículo reflectante (10, 30, 30'', 50, 74) que comprende una película de múltiples capas (14, 36, 54, 74, 120) que cubre una capa retrorreflectante (16, 42, 44, 52, 78) que está provista de un diseño para transportar información, caracterizado porque la película de múltiples capas comprende capas alternantes de al menos un primer y un segundo materiales (A, B), estando las capas alternantes configuradas para presentar una reflectancia relativamente grande para la luz incidente normalmente dentro de un primer intervalo espectral, de manera que para luz dentro de el primer intervalo espectral está oculto el diseño de soporte de información, y una reflectancia relativamente pequeña para luz incidente normalmente dentro de un segundo intervalo espectral, de manera que para luz dentro del segundo intervalo espectral es detectable el diseño que soporta información.

Method for making microstructured tools having discontinuous topographies, and articles produced therefrom

Methods for making a microstructured tool having interspersed topographies are disclosed, and the production of articles therefrom. The article has a major surface including first microstructural features and second microstructural features arranged in a pattern visible at least when viewed normal to the first major surface. The first and second microstructural features are different relative to each other, and are selected from the group consisting of cones, diffraction gratings, lenticulars, segments of a sphere, pyramids, cylinders, fresnels, and prisms.

Microoptics for glazing

Reflective polarizer having improved properties and optical display with improved reflective polarizer

A multiple layer reflective polarizer 12 is described. This element is placed between and optical cavity 24 and an LCD module 16 to form an optical display. The reflective polarizer reflects some light into the optical cavity 24 where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.

Post-formable multilayer optical films and methods of forming

Mold for producing glittering cube-corner retroreflective sheeting

A mold (79) that comprises an array of cube-corner elements (80) that are arranged in the array such that a retroreflective cube-corner sheeting (60) that is formed thereon is capable of glittering when light is incident thereon.

Ultra-flexible retroreflective cube corner composite sheetings and methods of manufacture

A method for manufacturing flexible cube corner retroreflective sheeting comprising the steps of: a) providing a tool having a molding surface; b) applying to the molding surface a volume of a lowable resin composition; c) contacting the resin composition with a first major surface of an overlay film; d) minimizing excess resin composition; e) curing the resin composition to form a sheeting comprising an array of cube corner elements bonded to the overlay film; f) removing the sheeting from the tool; and g) applyingmechanical stress to the sheeting so as to cause a fractured separation of substantially each individual cube corner element from surrounding cube corner elements. Also, flexible retroreflective sheetings comprising: a) a two-dimensional array of substantially independent cube corner elements, the array comprising a first polymetric material, and b) an overlay film having two major surfaces and comprising a second polymeric material, the array being bonded to the first major surface of the overlay film. Also safety devices incorporating such sheetings.

Images and method of making the same

Dental articles including post-formable multilayer optical films

Dental articles including at least one optical surface formed of a multilayer optical film including layers of at least one strain-induced birefringent material are disclosed. The multilayer optical films included in the dental articles is preferably post-formed into desired non-planar shapes in manners that result in some deformation of the optical stack of the multilayer optical films. A variety of dental implements can be constructed with multilayer optical film including dental mirrors, light guides for use in connection with photo-curing dental materials, and matrix bands for use in molding photo-curing dental restoratives.

Reflective article with concealed retroreflective pattern

A reflective article has a multilayer film covering a patterned retroreflective layer. In one embodiment the patterned retroreflective layer includes a separate indicia layer covering a retroreflective substrate. The indicia are substantially hidden under normal viewing conditions but easily detectable under retroreflective lighting conditions. Various types of retroreflective layers are disclosed. The article can also include microstructured relief patterns which produce holographic images under ambient lighting but which disappear under retroreflective conditions. The multilayer film includes alternating layers of at least a first and second polymer, and has a relatively high reflectivity for normally incident light within a first spectral range which is approximately coextensive with the visible spectrum, and a relatively low reflectance for normally incident light within a second spectral range. The second spectral range can include a transmission window of 15 % or less fractional bandwidth located at least partially in the visible spectrum. Fil m constructions are disclosed which achieve sharper spectral transitions than previously attainable. Film constructions are also disclose d which preserve such sharp transitions even at high entrance (tilt) angles.

Pressure-sensitive poly(n-vinyl lactam) adhesive composition and method for producing and using same

2116123 9310201 PCTABS00022 A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially unirradiated plasticizer in an amount sufficient to form a cohesive, pressure-sensitive adhesive composition. The composition is useful as a biomedical adhesive for transmitting or receiving electrical signals as a component (14) of a biomedical electrode (10).

Reflective polarizer with brightness enhancement

A multiple layer reflective polarizer (12) is described. This element is placed between an optical cavity (24) and an LCD module (16) to form an optical display. The reflective polarizer reflects some light into the optical cavity (24) where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.

Glittering cube-corner article

A glittering non-reflective sheeting (60) includes an array of cube-corner elements (30) that are arranged in the array such that the sheeting glitters when light is incident thereon. The glitter is in the form of many discrete points of light (68) that tend to blink off and on. The array may be configured such that a dihedral angle .alpha. varies between adjacent cube faces (31) of adjacent cube-corner elements (30) in each groove in one of the groove sets (45, 46, or 47) and such that the base planes (36) are not parallel to each other when the sheeting (60) is laid flat. Preferably, the dihedral angle .alpha. between faces (31) of adjacent cube-corner elements (30) varies in essentially all of the grooves such that the cube-corner elements are randomly tilted throughout the array. The glitter can make the sheeting very useful for aesthetic or decorative applications.

Brightness enhancing reflective polarizer

A multiple layer reflective polarizer 12 is described. This element is placed between and optical cavity 24 and an LCD module 16 to form an optical display. The reflective polarizer reflects some light into the optical cavity 24 where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.

Microwell array articles and methods of use

Microtextured catalyst transfer substrate

Structured composite optical films

Ultra-flexible retroreflective cube corner composite sheetings and methods of manufacture

A method for manufacturing flexible cube corner retroreflective sheeting comprising the steps of: a) providing a tool having a molding surface; b) applying to the molding surface a volume of a lowable resin composition; c) contacting the resin composition with a first major surface of an overlay film; d) minimizing excess resin composition; e) curing the resin composition to form a sheeting comprising an array of cube corner elements bonded to the overlay film; f) removing the sheeting from the tool; and g) applying mechanical stress to the sheeting so as to cause a fractured separation of substantially each individual cube corner element from surrounding cube corner elements. Also, flexible retroreflective sheetings comprising: a) a two-dimensional array of substantially independent cube corner elements, the array comprising a first polymetric material, and b) an overlay film having two major surfaces and comprising a second polymeric material, the array being bonded to the first major surface of the overlay film. Also safety devices incorporating such sheetings.

A composite used for light control or privacy

A composite including a polymeric film having a first generally planar major surface and an opposite second major surface defined by a multiplicity of elongate parallel contiguous ridge portions. The ridge portions each have a generally triangular cross section and elongate obscured and transmitting second major surface portions intersecting at the apex of the ridge with the obscured second major surface portion being on the side of the ridge generally facing a first end of the sheet and the transmitting second major surface portions being on the side of the ridge portions adjacent a second end of the sheet. The film can provide visual transmission between its first major surface and the transmitting second major surface portions while coatings along the obscured second major surface portions prevent viewing of visual images through the film; whereas the composite can also provide light transmission between the first major surface and the transmitting second major surface portions, while the coatings along the obscured second major surface portions restrict light transmission.

Reflective polarizer display

A MULTIPLE LAYER REFLECTIVE POLARIZER 12 IS DESCRIBED. THIS ELEMENT IS PLACED BETWEEN AND OPTICAL CAVITY 24 AND AN LCD MODULE 16 TO FORM AN OPTICAL DISPLAY. THE REFLECTIVE POLARIZER REFLECTS SOME LIGHT INTO THE OPTICAL CAVITY 24 WHERE IT IS RANDOMIZED AND MAY ULTIMATELY EMERGE WITH THE CORRECT POLARIZATION TO BE TRANSMITTED OUT OF THE DISPLAY.

Light directing article with a conformal retarder

The disclosed light directing article has an optical element and a conformal retarder with predefined thickness that contours with the optical element. In one aspect, the light directing article is a retroreflective article, which further comprises a phase reversing optical reflector.

COMPOSITION OF RELEASE COATING, OF POLYSILOXANE, CURABLE BY RADIATION AND METHOD FOR ITS PREPARATION.

La presente invención se relaciona con composiciones de revestimiento de liberación, curables por radiación, que comprenden un polidiorganosiloxano líquido, catiónicamente reactivo que tiene la siguiente fórmula: (Ver Fórmula); en donde R son fracciones moleculares que pueden ser iguales o diferentes. E es un grupo funcional orgánico monovalente de 1 a 20 átomos de carbono que tiene cuando menos un grupo funcional catiónicamente correactivo, a y b representan números enteros, y M es un grupo sililo que debe contener cuando menos un grupo funcional catiónicamente correactivo. La presente invención también se refiere a métodos de preparación de las mismas y a sustratos revestidos con dichas composiciones.

Post-forming continuous/disperse phase optical bodies

Diffusely reflective articles manufactured from optical bodies including continuous and disperse phases are disclosed along with methods of manufacturing such articles. Also disclosed are underdrawn continuous/disperse phase optical bodies that are particularly well-suited to post-forming operations. The articles, methods and optical bodies of the present invention preferably allow for post-forming of the optical bodies while retaining desired levels of diffuse reflectivity in the articles formed from the optical bodies.

Electroluminescent lamp using multilayer optical film

Electroluminescent lamps incorporating one or more multilayer optical films according to the present invention to polarize and/or reflect light. The multilayer optical films exhibit the ability to reflect significant amounts of normal and off-axis incident light.

Conspicuity marking system

A conspicuity marking system (10, 80) includes a light guide (12, 82) which has at least one optically reflective surface for propagating light through the light guide and a retroreflective light extractor (20, 84) for extracting light (52) propagating through the light guide and for retroreflecting light (54) from an external light source incident upon the system. Light propagating through the light guide (20, 82) which is transmitted into the light extractor (20, 84) is reflected back through the light guide such that it exits the light guide at a location displaced from the retroreflective light extractor. Light (54) from an external light source which is incident on the system passes through the light guide (12, 82) and is retroreflected toward the light source by the retroreflective light extractor (20, 84).

Method of making glittering cube-corner retroreflective sheeting

Pressure-sensitive poly(n-vinyl lactam) adhesive composition and skin covering articles using same

A hydrophilic, pressure-sensitive adhesive composition prepared by irradiating solid poly(N-vinyl lactam) with ionizing radiation to crosslink the poly(N-vinyl lactam) and thereafter mixing the radiation-crosslinked poly(N-vinyl lactam) with essentially unirradiated plasticizer in an amount sufficient to form a cohesive, pressure-sensitive adhesive composition. The composition is useful as a biomedical adhesive for transmitting or receiving electrical signals as a component of a biomedical electrode. The composition is also useful as a drug delivery device to deliver pharmaceuticals or other active ingredients to or through mammalian skin. The composition is also useful as a component in a skin covering for protecting mammalian skin or mammalian skin openings with antimicrobial agents. A method of preparation of the composition is also disclosed.

Manufacturing Methods of Differentially Cured Microstructured Articles

resumo “métodos de fabricação de artigos microestruturados curados com padrão diferencialmente” a presente invenção refere-se a métodos de fabricação de artigos microestruturados curados com um padrão diferencialmente, com o uso de uma ferramenta de moldagem que tem a superfície microestruturada, uma irradiação com um padrão para gerar regiões irradiadas e não irradiadas em uma resina curável por radiação. diferentes combinações de ferramentas de moldagem e irradiação com um padrão fornecem numerosas variantes de artigos microestruturados curados com um padrão diferencialmente sem exigir modificação dispendiosa das ferramentas de moldagem. 1 / 1 Abstract This invention relates to methods of manufacturing differentially cured microstructured articles using a molding tool having a microstructured surface, an irradiation with a standard to generate irradiated and non-irradiated regions in a radiation curable resin. Different combinations of molding and irradiation tools with one pattern provide numerous variants of differentially cured patterned microstructured articles without requiring expensive modification of the molding tools. 1/1

Dental articles including post-formable multilayer optical films

Dental articles including at least one optical surface formed of a multilaye r optical film including layers of at least one strain-induced birefringent material are disclosed. The multilayer optical films included in the dental articles is preferably post-formed into desired non-planar shapes in manners that result in some deformation of the optical stack of the multilayer optic al films. A variety of dental implements can be constructed with multilayer optical film including dental mirrors, light guides for use in connection wi th photo-curing dental materials, and matrix bands for use in molding photo- curing dental restoratives.

Composite with nano-structured layer and method of making the same

Nano-structured ides having a random nano-structured anisotropic major surface. COMPOSITE WITH NANO-STRUCTURED LAYER AND METHOD OF MAKING THE SAMEAbstract5 Nano-structured layers having a random nano-structured anisotropic major surface.

Microstructured surface and articles with lower visibilty of scratches and methods

Structured surfaces are described. In one embodiment, the structured surface comprises a plurality of structures having a complement cumulative slope magnitude distribution (Fcc) such that at least 30, 40, 50, 60, 70, 80 or 90% of structures have a slope greater than 10 degrees; and less than 80% of the structures have a slope greater than 35 degrees. In other embodiments, the structures comprise peaks and valleys defined by a Cartesian coordinate system such that the peaks and valleys have a width and length in the x-y plane and a height in the z- direction and at least a portion of the peaks and/or valleys vary in height in the y direction and/or the x-direction by at least 10% of the average height. Articles and methods are also described.

Method of making glittering cube-corner retroreflective sheeting

A method of making a glittering cube-corner sheeting, which method comprises: a) providing a first retroreflective sheeting that includes an array of cube-corner elements arranged in a repeating pattern; and b) exposing the first retroreflective sheeting to heat, pressure, or a combination thereof to produce a second retroreflective sheeting that comprises an array of cube-corner elements that are randomly tilted, the cube-corner elements becoming randomly tilted from the heat, pressure or the combination thereof other than through securing a seal film to the array that is arranged in the repeating pattern; or which method may comprise: forming a cube-corner sheeting from a mold that has a structured surface that includes a multiplicity of cube-comer elements, the cube-comer elements each including a base plane and three faces, the cube-corner elements being arranged such that the base planes do not reside in the same plane when the sheeting is laid flat.

Structured composite optical films

Optical films having structured surfaces are used, inter alia, for managing the propagation of light within a display. As displays become larger, it becomes more important that the film be reinforced so as to maintain rigidity. An optical film of the invention has a first layer comprising inorganic fibers embedded within a polymer matrix. The first layer has a structured surface to provide an optical function to light passing therethrough. The film may have various beneficial optical properties, for example, light that propagates substantially perpendicularly through the first layer may be subject to no more than a certain level of haze or light incident on the film may be subject to a minimum value of brightness gain. Various methods of manufacturing the films are described.

DISPLAY WITH REFLECTIVE POLARIZER

Vorrichtung und verfahren zur herstellung einer zweiseitig gemusterten bahn in deckung

Retroreflective articles having composite cube-corners and methods of making

Nanostructures for oled devices

The present disclosure describes method of using nanostructured lamination transfer films for the fabrication of an OLED having a nanostructured solid surface, using lamination techniques. The methods involve transfer and/or replication of a film, layer, or coating in order to form a nanostructured surface directly on a photosensitive optical coupling layer (pOCL) that is in contact with the emitting surface of an OLED in, for example, a top emitting active matrix OLED (AMOLED) device. The pOCL layer is subsequently cured to form an optical coupling layer (OCL) and the nanostructured film tool removed to result in a nanostructured OLED.

Articles including a microstructured curved surface, tooling articles, and methods

The present disclosure provides a microstructured article including a thermoplastic polymer shaped to have a curve. At least a portion of the curve includes a microstructured surface of utilitarian discontinuities and the microstructured surface includes peak structures and adjacent valleys. The peak structures and the curve are formed of a single piece of the thermoplastic polymer. A method of making the microstructured articles is also provided including a) obtaining a tool shaped to include at least one of a protrusion or a concavity; b) disposing a microstructured film on at least a portion of the tool including the protrusion and/or the concavity; and c) thermoforming a single piece of thermoplastic polymer onto the tool to form a microstructured article shaped to include a curve. The curve is an inverse of the protrusion or the concavity of the tool.

Process for manufacturing optical and semiconductor elements

A method for fabricating an array of precisely shaped and located shaped elements utilizes a precisely shaped patterned abrasive to form channels in a workpiece. One or more patterned abrasives contact and abrade along one or more intersecting axes to define the shaped elements. The shaped elements may include optical elements, semiconductor elements, or both.

Ultraflexible retroreflektive würfeleckige zusammengetzte folie und herstellungsverfahren

Continuous additive manufacturing apparatus

Retroreflective dichroic reflector