Patent application number | Description | Published |
20080199620 | ADHESIVE COMPOSITIONS - Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB) | 08-21-2008 |
20080233404 | MICROREPLICATION TOOLS AND PATTERNS USING LASER INDUCED THERMAL EMBOSSING - Laser induced thermal embossing (LITE) films used to make microreplication tools, liners, and products such as laser induced thermal imaging (LITI) donor films. The LITE tools or liners have a microstructured surface selectively imposed upon them as determined by an area of imaging the LITE films against one or more microreplication tools. An orientation between the laser imaging lines and LITE films can be selected to produce various microreplication patterns on the tools. The LITE tools can be made having a structure on structure pattern including a microstructured pattern with a nanostructured surface. The LITE liners can be combined with other films to form products. The LITE films can also be coated with a transfer layer to form a LITE donor film with a structured transfer layer. | 09-25-2008 |
20090111055 | METHOD OF FORMING AN IMAGE HAVING MULTIPLE PHASES - A method of forming an image having multiple phases is disclosed herein. The method includes forming exposed and unexposed areas, the exposed areas comprising a first polymer network exhibiting first and second phases that are chemically connected and have different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase, and the unexposed areas comprising a second polymer network comprising third and fourth phases that are chemically connected and have different refractive indices, the third phase being continuous, and the fourth phase comprising a plurality of structures dispersed within the third phase. The first and second polymer networks are chemically connected, and morphology formed by the first and second phases is different than that formed by the third and fourth phases. | 04-30-2009 |
20090242048 | STRUCTURED POLYDIORGANOSILOXANE POLYAMIDE CONTAINING DEVICES AND METHODS - Devices including a polydiorganosiloxane polyamide containing material having a microstructured surface are disclosed herein. Such devices can optionally include a flex circuit attached to the microstructured surface and can be useful, for example, in fluid handling applications. | 10-01-2009 |
20090262348 | METHOD OF MODIFYING LIGHT WITH SILICONE (METH)ACRYLATE COPOLYMERS - A method of modifying light is disclosed and includes: providing an optical element having an oriented polymer network of a silicone (meth)acrylate copolymer and exhibiting a first phase and a second phase, the first phase and the second phase being chemically connected and having different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase; illuminating the optical element with light from a light source; and detecting polarized or directionally diffused light transmitted by the optical element. Optical elements including the polymer network and a variety of additional layers are also disclosed, as are optical devices such as prisms, display panels, lenses, and the like. | 10-22-2009 |
20100006211 | MICROREPLICATION TOOLS AND PATTERNS USING LASER INDUCED THERMAL EMBOSSING - Laser induced thermal embossing (LITE) films used to make microreplication tools, liners, and products such as laser induced thermal imaging (LITI) donor films. The LITE tools or liners have a microstructured surface selectively imposed upon them as determined by an area of imaging the LITE films against one or more microreplication tools. An orientation between the laser imaging lines and LITE films can be selected to produce various microreplication patterns on the tools. The LITE tools can be made having a structure on structure pattern including a microstructured pattern with a nanostructured surface. The LITE liners can be combined with other films to form products. The LITE films can also be coated with a transfer layer to form a LITE donor film with a structured transfer layer. | 01-14-2010 |
20100067257 | PATTERNED ADHESIVES FOR REFLECTORS - A reflector laminate, and backlights and displays incorporating such reflector laminates are disclosed. The reflector laminate includes a substrate and a reflector that are adhered together by a plurality of adhesive protrusions. The adhesive protrusions provide for a plurality of voids between the reflector and the substrate, so that a free reflector surface is adjacent to an air gap between the reflector and substrate. The reflector can include a multilayer interference reflector, and the presence of the air gap ensures high reflectivity for the laminate. The reflector can be adhered to a solid lightguide, a frame enclosing a portion of a backlight, a frame enclosing a hollow lightguide cavity, or an optical sheet positioned at the output surface of a backlight. | 03-18-2010 |
20110063854 | SUSPENDED OPTICAL FILM - Suspended optical film assemblies including a frame, an optical film, and an elastomeric film are disclosed. The elastomeric films include a first attachment region, a second attachment region, and a free region between the first and second attachment regions. The first attachment region is affixed to the frame; the second attachment region is affixed to the optical film, so that the free region is in tension and supports the optical film within the frame. The tension in the elastomeric film free region can help maintain flatness and reduce distortion in the optical film during environmental changes that influence dimensional changes in the frame, optical film, and elastomeric film. | 03-17-2011 |
20110081505 | ADHESIVE COMPOSITION AND ARTICLES MADE THEREFROM - An adhesive composition comprising from about 2 to about 10 wt. % multifunctional ethylenically unsaturated siloxane polymer, from about 2 to about 10 wt. % monofunctional ethylenically unsaturated siloxane macromer, and from about 85 to about 96 wt. % vinyl monomer is described. The adhesive composition is used to make adhesive articles that, when applied to a substrate, remain removable or repositionable, even after long periods of time. The adhesive composition may be used in transfer adhesive films, and in laminated articles suitable for use in optical applications. | 04-07-2011 |
20110189421 | ADHESIVE COMPOSITIONS - Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB) | 08-04-2011 |
20110198781 | METHODS FOR CHANGING THE SHAPE OF A SURFACE OF A SHAPE MEMORY POLYMER ARTICLE - Methods for changing the shape of a surface of an article are disclosed. The methods may include providing a liquid polymer precursor, casting the precursor against a first tool assembly, curing the precursor to form a shape memory polymer substrate, deforming one or more surfaces of the substrate, and mobilizing the shape memory polymer to shift the deformed surface of the substrate from a deformed shape to a pre-set shape. | 08-18-2011 |
20110261436 | METHOD OF MODIFYING LIGHT WITH SILICONE (METH) ACRYLATE COPOLYMERS - A method of modifying light is disclosed and includes: providing an optical element having an oriented polymer network of a silicone (meth)acrylate copolymer and exhibiting a first phase and a second phase, the first phase and the second phase being chemically connected and having different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase; illuminating the optical element with light from a light source; and detecting polarized or directionally diffused light transmitted by the optical element. Optical elements including the polymer network and a variety of additional layers are also disclosed, as are optical devices such as prisms, display panels, lenses, and the like. | 10-27-2011 |
20120058305 | SHAPE MEMORY POLYMER ARTICLES WITH A MICROSTRUCTURED SURFACE - A shape memory polymer article is disclosed. The article may include a surface having a microstructure and it may include a shape memory polymer. The shape memory polymer may include a copolymer network. The copolymer network may be formed from the reaction product of a free radically polymerizable siloxane having greater than one functional free radically polymerizable group and at least one (meth)acrylate monomer. | 03-08-2012 |
20120087010 | PATTERNED ADHESIVES FOR REFLECTORS - A reflector laminate, and backlights and displays incorporating such reflector laminates are disclosed. The reflector laminate includes a substrate and a reflector that are adhered together by a plurality of adhesive protrusions. The adhesive protrusions provide for a plurality of voids between the reflector and the substrate, so that a free reflector surface is adjacent to an air gap between the reflector and substrate. The reflector can include a multilayer interference reflector, and the presence of the air gap ensures high reflectivity for the laminate. The reflector can be adhered to a solid lightguide, a frame enclosing a portion of a backlight, a frame enclosing a hollow lightguide cavity, or an optical sheet positioned at the output surface of a backlight. | 04-12-2012 |
20120135207 | METHOD OF FORMING AN IMAGE HAVING MULTIPLE PHASES - A method of forming an image having multiple phases is disclosed herein. The method includes forming exposed and unexposed areas, the exposed areas comprising a first polymer network exhibiting first and second phases that are chemically connected and have different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase, and the unexposed areas comprising a second polymer network comprising third and fourth phases that are chemically connected and have different refractive indices, the third phase being continuous, and the fourth phase comprising a plurality of structures dispersed within the third phase. The first and second polymer networks are chemically connected, and morphology formed by the first and second phases is different than that formed by the third and fourth phases. | 05-31-2012 |
20120295025 | ADHESIVE COMPOSITIONS - Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB) | 11-22-2012 |
20130034682 | RETROREFLECTIVE ARTICLES INCLUDING OPTICALLY ACTIVE AREAS AND OPTICALLY INACTIVE AREAS - This disclosure generally relates to retroreflective articles and methods of making such articles. | 02-07-2013 |
20130068367 | ADHESIVE-BACKED ARTICLES - Methods of preparing adhesive-backed articles and methods of applying adhesives backed articles are described. The adhesive-backed articles include a compliant film and a pressure-sensitive adhesive having a microstructured surface opposite the compliant film. | 03-21-2013 |
20130071622 | LAMINATES WITH STRUCTURED LAYERS - An article including at least one first layer with a first major surface and a second major surface, wherein at least one of the first and second major surfaces is a structured surface; and a cap layer in contact with a structured surface of the first layer. | 03-21-2013 |
20130114142 | RETROREFLECTIVE ARTICLES INCLUDING OPTICALLY ACTIVE AREAS AND OPTICALLY INACTIVE AREAS - This disclosure generally relates to retroreflective articles and methods of making such articles. | 05-09-2013 |
20130170218 | ILLUMINATION DEVICE HAVING VISCOELASTIC LAYER - An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a lightguide optically coupled to a light source, and a viscoelastic layer and a nanovoided polymeric layer are used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic layer may be a pressure sensitive adhesive. | 07-04-2013 |
20130224844 | STRUCTURED POLYDIORGANOSILOXANE POLYAMIDE CONTAINING DEVICES AND METHODS - Devices including a polydiorganosiloxane polyamide containing material having a microstructured surface are disclosed herein. Such devices can optionally include a flex circuit attached to the microstructured surface and can be useful, for example, in fluid handling applications. | 08-29-2013 |
20130235614 | ILLUMINATION DEVICE HAVING VISCOELASTIC LIGHTGUIDE - An illumination device, such as a backlight for electronic display devices, is disclosed. The illumination device includes a viscoelastic lightguide optically coupled to a light source, and a nanovoided polymeric layer is used in conjunction with the lightguide to manage light emitted by the light source. The viscoelastic lightguide may be a pressure sensitive adhesive. | 09-12-2013 |
20130288053 | ADHESIVE COMPOSITIONS - Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB) | 10-31-2013 |
20140021492 | 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. | 01-23-2014 |
20140106267 | METHOD OF FORMING AN IMAGE HAVING MULTIPLE PHASES - A method of forming an image having multiple phases is disclosed herein. The method includes forming exposed and unexposed areas, the exposed areas comprising a first polymer network exhibiting first and second phases that are chemically connected and have different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase, and the unexposed areas comprising a second polymer network comprising third and fourth phases that are chemically connected and have different refractive indices, the third phase being continuous, and the fourth phase comprising a plurality of structures dispersed within the third phase. The first and second polymer networks are chemically connected, and morphology formed by the first and second phases is different than that formed by the third and fourth phases. | 04-17-2014 |
20140175707 | METHODS OF USING NANOSTRUCTURED TRANSFER TAPE AND ARTICLES MADE THEREFROM - A method of making patterned structured solid surfaces is disclosed that includes filling a structured template with backfill material to produce a structured transfer film and laminating the structured transfer film to a receptor substrate. The receptor substrate comprises a patterned adhesion promotion layer. The template layer is capable of being removed from the backfill layer while leaving at least a portion of the structured surface of the backfill layer substantially intact. The backfill layer can include at least two different materials, one of which can be an adhesion promotion layer. In some embodiments the backfill layer includes a silsesquioxane such as polyvinyl silsesquioxane. The structured transfer film is a stable intermediate that can be covered temporarily with a release liner for storage and handling. | 06-26-2014 |
20140178646 | PATTERNED STRUCTURED TRANSFER TAPE - A transfer tape is disclosed that includes a carrier, a template layer having a first surface applied to the carrier and having a second surface opposite the first surface, wherein the second surface comprises a non-planar structured surface, a release coating disposed upon the non-planar structured surface of the template layer, and a backfill layer disposed upon and conforming to the non-planar structured surface of the release coating. In some embodiments, the backfill layer includes a silsesquioxane such as polyvinyl silsesquioxane. The disclosed transfer tape can be used to transfer replicated structures to a receptor substrate. | 06-26-2014 |
20140242343 | LAMINATION TRANSFER FILMS FOR FORMING EMBEDDED NANOSTRUCTURES - Transfer films, articles made therewith, and methods of making and using transfer films that include embedded nanostructures are disclosed. The articles include a sacrificial template layer having a first surface and a second surface having a structured surface opposite the first surface and a thermally stable backfill layer applied to the second surface of the sacrificial template layer. The thermally stable backfill layer has a structured surface conforming to the structured surface of the sacrificial template layer and the sacrificial template layer comprises inorganic nanomaterials and sacrificial material. The sacrificial material in the sacrificial template layer is capable of being cleanly baked out while leaving a densified layer of inorganic nanomaterials on the structured surface of the thermally stable backfill layer. | 08-28-2014 |
20140299364 | ELECTRICALLY CONDUCTIVE ARTICLE WITH HIGH OPTICAL TRANSMISSION - A transparent conductive article includes a transparent substrate, a thin electrically conductive grid, and a carbon nanolayer. The grid is disposed on the substrate, and the carbon nanolayer is also disposed on the substrate and in contact with the grid. The conductive grid and the carbon nanolayer may have thicknesses of no more than 1 micron and 50 nanometers, respectively. The carbon nanolayer has a morphology that includes graphite platelets embedded in nano-crystalline carbon, and can be produced with a buffing procedure using dry carbon particles without substantially damaging the grid structure. The article may have a visible light transmission of at least 80%, and a sheet resistance less than 500 or 100 ohms/square. The transparent substrate may comprise a flexible polymer film. The disclosed articles may substantially maintain an initial sheet resistance value when subjected to flexing. | 10-09-2014 |