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Audrey A. Sherman, St. Paul US

Audrey A. Sherman, St. Paul, MN US

Patent application numberDescriptionPublished
20080199620ADHESIVE 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
20080233404MICROREPLICATION 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
20080268242SILICONE PRESSURE SENSITIVE ADHESIVE AND ARTICLES - Pressure sensitive adhesive compositions comprising an unreactive mixture of polydiorganosiloxane polyurea copolymer, diluent, and silicate tackifying resin. The compositions are useful for articles such as medical devices.10-30-2008
20080318057Branched polydiorganosiloxane polyamide copolymers - Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.12-25-2008
20080318058Polydiorganosiloxane polyamide copolymers having organic soft segments - Polydiorganosiloxane polyamide, block copolymers having organic soft segments and methods of making the copolymers are provided.12-25-2008
20080318059Polydiorganosiloxane polyoxamide copolymers - 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 precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)12-25-2008
20080318065Mixtures of polydiorganosiloxane polyamide-containing components and organic polymers - This invention relates to a mixture of a polydiorganosiloxane polyamide-containing material and an organic polymer.12-25-2008
20090036598HOT MELT PROCESSABLE POLYUREA COPOLYMERS AND METHODS OF THEIR PREPARATION AND USE - Packaged viscoelastic compositions comprising viscoelastic copolymers and a packaging material are disclosed. The viscoelastic copolymers are urea copolymers, which are the reaction product of polyisocyanates and polyamines. The packaged viscoelastic compositions are hot melt processable.02-05-2009
20090111055METHOD 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
20090133832POLYDIORGANOSILOXANE POLYOXAMIDE COPOLYMERS - 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 precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)05-28-2009
20090153756LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING SAME - A liquid crystal display is disclosed, including first and second opposing substrates separated by a cell gap. The cell gap has an inner liquid crystal region including a liquid crystal composition, an outer sealant region including a sealant that bonds the first and second opposing substrates together, and a void region between the inner liquid crystal region and the outer sealant region. The sealant may be a pressure sensitive adhesive. Also disclosed is a method of manufacturing the liquid crystal display. A liquid crystal display assembly including at least two light reflecting liquid crystal displays is also disclosed, wherein at least one of the displays comprises the liquid crystal display disclosed herein.06-18-2009
20090161058OPTICAL ADHESIVE FOR LIQUID CRYSTAL DISPLAY - A liquid crystal display includes first and second opposing substrates having first and second opposing surfaces, respectively, at least one of the surfaces having a metal disposed thereon, the substrates bonded together with an adhesive in contact with the metal, the adhesive comprising a blend of: a pressure sensitive adhesive component comprising at least one polymer having acid or base functionality, a high Tg polymer having a weight average molecular weight greater than 100,000 and having an acid or base functionality, and a crosslinker, wherein the functionality of the pressure sensitive adhesive component and the functionality of the high Tg polymer form an acid-base interaction when mixed.06-25-2009
20090229766ADHESIVE REMOVAL DEVICE - An adhesive removal system useful for removing a stretch release adhesive from a component includes a first member that engages with a component and an adhesive removal member that moves the adhesive and component relative to each other in order to stretch the adhesive and release the adhesive from a bond surface of the component. In some embodiments, the adhesive removal member applies a substantially uniform pulling force across the adhesive. The adhesive removal member may be manually actuated by a user or with the aid of an automated device. In some embodiments, the adhesive removal system comprises a rotatable portion that moves the adhesive relative to the component. In other embodiments, the adhesive removal system includes features that enable the first member and a second member, which is mechanically coupled to at least a portion of the adhesive extending from the component, to move relative to each other.09-17-2009
20090242048STRUCTURED 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
20090262348METHOD 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
20100006211MICROREPLICATION 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
20100163809BRANCHED POLYDIORGANOSILOXANE POLYAMIDE COPOLYMERS - Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.07-01-2010
20100221511MULTILAYER FILMS INCLUDING THERMOPLASTIC SILICONE BLOCK COPOLYMERS - A multilayer film includes a first layer of a first polymeric material and a second layer of a second polymeric material. The first material has a first index of refraction and the second material has a second index of refraction less than the first index of refraction. In one embodiment, the second material includes a polydiorganosiloxane polyamide block copolymer. In another embodiment, the second material includes a polydiorganosiloxane polyoxamide block copolymer.09-02-2010
20100297406OPTICAL ADHESIVE WITH DIFFUSIVE PROPERTIES - Optical adhesives that also diffuse visible light include a blend of an adhesive matrix which is an optical adhesive and a block copolymer. The adhesive may be a pressure sensitive adhesive and contains either acid or basic functionality. The block copolymer, which may be a diblock copolymer, contains a high Tg block and a functional block, the functionality of the functional block is complimentary to the functionality of the adhesive matrix to form an acid-base interaction. The adhesive may also contain a crosslinking agent.11-25-2010
20100317799DRY APPLY ADHESIVE GRAPHIC FILMS - An adhesive composition includes a blend of a pressure sensitive adhesive and an additive. The pressure sensitive adhesive includes a (meth)acrylate polymer. The additive includes a copolymer with a vinyl polymeric backbone that includes at least one free radically polymerizable vinyl monomer A and at least one reinforcing comonomer B, wherein B is present at 0 to about 20% by weight of the copolymer, and a pendant polysiloxane monomer grafted to the backbone. The adhesive composition may optionally be crosslinked. The adhesive composition may be applied to a film to form a graphic article. These graphic articles may be applied to a substrate without liquid application aids.12-16-2010
20110020640STRETCH RELEASING OPTICALLY CLEAR PRESSURE SENSITIVE ADHESIVE - Optically clear stretch releasing pressure sensitive adhesive films containing a silicone pressure sensitive adhesive composition and a tacky tab are provided. The pressure sensitive adhesive compositions are formed from elastomeric silicone polymer selected from the group consisting of urea-based silicone copolymers, oxamide-based silicone copolymers, amide-based silicone copolymers, urethane-based silicone copolymers, polydiorganosiloxane polymers, or mixtures of these copolymers. The pressure sensitive adhesive compositions may also contain an MQ tackifying resin. The pressure sensitive adhesive compositions may be used to form adhesive articles.01-27-2011
20110039099TEMPORARILY REPOSITIONABLE PRESSURE SENSITIVE ADHESIVE BLENDS - Temporarily repositionable pressure sensitive adhesive compositions which are blends of a silicone-modified pressure sensitive adhesive component, a high Tg polymer component and a crosslinker are presented. The silicone-modified pressure sensitive adhesive includes a copolymer that is the reaction product of an acidic or basic monomer, a (meth)acrylic or vinyl monomer, and a silicone macromer. The high Tg polymer component contains acid or base functionality such that when mixed, the silicone-modified pressure sensitive adhesive component and the high Tg polymer component form an acid-base interaction.02-17-2011
20110064916METHOD OF MAKING ADHESIVE ARTICLE - Methods of making cut adhesive articles are described. The methods involve: providing a crosslinked pressure sensitive adhesive layer disposed on a substrate, embossing a surface of the crosslinked pressure sensitive adhesive layer to form a microstructured crosslinked pressure sensitive adhesive layer having a microstructured adhesive surface, and die cutting the microstructured crosslinked pressure sensitive adhesive layer.03-17-2011
20110081505ADHESIVE 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
20110092638POLYDIORGANOSILOXANE POLYOXAMIDE COPOLYMERS - 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 precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)04-21-2011
20110122494RETROREFLECTIVE ARTICLES AND DEVICES HAVING VISCOELASTIC LIGHTGUIDE - Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The optical device may have a “front lit” configuration such that light being transported within the lightguide is extracted and retroreflected by the film toward a viewer. The optical device may have a “back lit” configuration such that light being transported within the lightguide is extracted and transmitted through the film toward a viewer. The retroreflective film may comprise beaded retroreflective sheeting such as that used in traffic signs and markings.05-26-2011
20110123798BRANCHED POLYDIORGANOSILOXANE POLYAMIDE COPOLYMERS - Branched polydiorganosiloxane polyamide, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting one or more amine compounds including at least one polyamine with a precursor having at least one polydiorganosiloxane segment and at least two ester groups.05-26-2011
20110123800UREA-BASED PRESSURE-SENSITIVE ADHESIVES - Non-silicone urea-based adhesives are disclosed which are prepared by the polymerization of reactive oligomers with the general formula X—B—X, where X is an ethylenically unsaturated group and B is a unit free of silicone and containing urea groups. The reactive oligomers can be prepared from polyamines through chain extension reactions using diaryl carbonates followed by capping reactions. Adhesive articles, including optical adhesive articles may be prepared using the disclosed non-silicone urea-based adhesives.05-26-2011
20110134623LIGHTGUIDE HAVING A VISCOELASTIC LAYER FOR MANAGING LIGHT - Disclosed herein is an optical device including a light source and an optical article. The optical article includes a lightguide and a viscoelastic layer disposed on the lightguide. Light emitted by the light source enters the lightguide and is transported within the lightguide by total internal reflection. The viscoelastic layer manages light, for example, at least about 50%, or less than about 10%, of light that enters the lightguide may be extracted. The optical device can be used in a variety of constructions for signs, markings, display devices, keypad assemblies, tail light assemblies and illumination devices.06-09-2011
20110151168MULTI-LAYER OPTICAL ARTICLES - Multi-layer articles are disclosed which include, a polypropylene-based film, and a layer on at least one surface of the polypropylene-based film including an ethylene-based material containing a copolymer of ethylene and at least one alpha-olefin comomoner with a density of no greater than 0.90 g/cm06-23-2011
20110165361OPTICAL ADHESIVE WITH DIFFUSIVE PROPERTIES - Disclosed are optically transmissive adhesives that diffuse light which include an optically clear pressure sensitive adhesive matrix and particles dispersed within the matrix with a refractive index less than the refractive index for the pressure sensitive adhesive matrix. The adhesives may be used to prepare optical articles and optical laminates.07-07-2011

Patent applications by Audrey A. Sherman, St. Paul, MN US