Patent application number | Description | Published |
20100003204 | Nanoparticle hybrid sunscreens - The invention discloses and claims a new class of chemical compositions with ideal sunscreen properties. The chemical composition comprises spherical particles between 200 nm and 10 microns in diameter prepared by an emulsion polymerization of tetraalkoxysilanes or organotrialkoxysilanes or organobridged trialkoxysilanes with a dye monomer bearing two or more alkoxysilyl groups attached to the bridging chromophore. The resulting spheres absorb ultraviolet light. The dye can be any organic chromophore capable of receiving multiple trialkoxysilyl groups resulting in multipoint covalent attachment that precludes leaching of the dye from the spheres. The formic acid-toluene-monomer emulsion polymerization allows for large-scale (>100 gram) synthesis of monodisperse particles under acidic, non-aqueous conditions without surfactants. The particles less than 1 micron in diameter are smooth as talc to the touch and will provide a smooth formulation for sunscreen creams or lotions. | 01-07-2010 |
20100038526 | Composition and method to characterize membranes' defects - The chemical composition and method of the invention enable characterization of microscopic defects in membranes such as pinholes, cracks or fissures. The present invention, however, can be used to characterize defects on different types of porous and non-porous membranes used for diverse applications in various industries. | 02-18-2010 |
20120017935 | MAGNETIC TAPE HEAD CLEANING - An embodiment of a magnetic tape head cleaner for a magnetic tape head, the head having at least one read/write surface, wherein the magnetic tape head is configured to read and write data with respect to a movable magnetic tape as the tape is moved in a longitudinal direction of the tape and across the read/write surface(s) of the head, employs a closed cellular polyurethane foam pad; and a support member configured to support the pad for movement of the pad across and in contact with the read/write surface(s) of the magnetic tape head. The closed cellular polyurethane foam pad may have a Shore hardness of substantially 55-60. | 01-26-2012 |
20120019967 | ELECTROSTATIC DISCHARGE (ESD) PROTECTION FOR ELECTRONIC DEVICES USING WIRE-BONDING - A system in one embodiment includes a cable having a plurality of cable leads, and a multi-diode chip having a pad-side not facing the cable. The multi-diode chip includes a plurality of sets of contact pads on the pad-side of the multi-diode chip, and a plurality of crossed diode sets, wherein each set of crossed diodes is coupled between a first contact pad and a second contact pad of one set of contact pads, wherein at least two of the plurality of cable leads are coupled via wire-bonding to one of the plurality of sets of contact pads of the multi-diode chip for providing electrostatic discharge (ESD) protection for at least one element of the electronic device coupled to the at least two cable leads. | 01-26-2012 |
20120033332 | LOW VISCOSITY ELECTROSTATIC DISCHARGE (ESD) DISSIPATING ADHESIVE - In one embodiment, a system includes a cable comprising a plurality of leads and an ESD dissipating adhesive coupled to the plurality of leads in a coverage area for providing ESD protection to an element of an electronic device. The ESD adhesive comprises a mixture of a polymeric thin film and electrically conductive fillers dispersed in the film, and the ESD adhesive has a resistivity from about 50 to 100 MΩ. In another embodiment, a method for providing ESD protection to an element of an electronic device includes applying an ESD adhesive across exposed leads of a cable and evaporating the solvent from the ESD adhesive. At least some of the leads are coupled to an element of an electronic device. The ESD adhesive comprises a polymeric thin film, electrically conductive fillers dispersed in the polymeric thin film, and a solvent for controlling a viscosity of the ESD adhesive. | 02-09-2012 |
20120042899 | CLEANING MAGNETIC TAPE - Methods and apparatus provide for non-destructive cleaning of magnetic tape. In one embodiment, a continuing length of the magnetic tape is submersed and passed through a covered solvent bath; and each side (front and back) of the continuing length of magnetic tape is swabbed with a cotton swab subsequent to the submerging step. The cotton swabs are arranged to swab each respective side of the magnetic tape. | 02-23-2012 |
20120042905 | EXTRACTION OF SURFACE CONTAMINANTS OF MAGNETIC TAPE - Methods for preparing for analysis of surface contamination of magnetic tape, in one embodiment, submerses and passes a continuing length of the magnetic tape through a covered water bath; and subsequent to the submersing step, wipes the continuing length of the magnetic tape while covered. The preparation is conducted, in one embodiment, with a covered enclosure configured to enclose a water bath to a level at least submersing guide(s) and a continuing length of the magnetic tape passed by the guide(s). A wiping arrangement is configured to wipe the continuing length of magnetic tape subsequent to the submersion in the water bath. Further, the covered enclosure comprises openings therein to pass the continuing length of magnetic tape. | 02-23-2012 |
20120105534 | INKJET PRINTING OF MICROFLUIDIC CHANNELS - A mechanism for fabricating microfluidic channels uses a three-dimensional inkjet printing unit to print the channels layer-by-layer on a substrate. In one embodiment, for each layer, an inkjet head deposits droplets of a hydrophobic material on a surface the substrate in a pattern lying outside a two-dimensional layout of the channels, and another inkjet head deposits droplets of a mixture of poly(tetrahydropyranyl methacrylate) PTHPMA (or another hydrophobic material which hydrolyzes to form a hydrophilic material) and a photoacid generator (PAG) on the surface of the substrate in a pattern lying inside the two-dimensional layout of the channels. After all layers are printed, flood exposure of the entire substrate to UV radiation releases acid from the PAG which hydrolyzes PTHPMA to form hydrophilic poly(methacrylic acid) PMMA, thereby rendering the PTHPMA regions hydrophilic. The layers of these now-hydrophilic patterned regions together define the microfluidic channels. | 05-03-2012 |
20120157330 | Trenched Sample Assembly for Detection of Analytes with Electromagnetic Read-Write Heads - Described are embodiments of an invention for a sample assembly with trenches for detection of analytes with electromagnetic read heads. The sample assembly includes an outer layer with at least one sample trench. The sample trench includes a first set of antibodies that are bonded on a first surface of a base layer. Target antigens are bonded with the first set of antibodies, and a second set of antibodies are bonded to the target antigens. Further, the sample trench includes nanoparticles that are bonded to the second set of antibodies. A head module includes a write head for magnetizing nanoparticles and a read sensor for detecting the magnetized nanoparticles, and thus, the target antigens. The sample trench constrains the biological sample, and thus the target antigen, during the preparation and subsequent analysis of the biological sample. Accordingly, the target antigen is aligned with read elements of a head module such that the target antigen is reliably and accurately detected. Further, to ensure reliable and accurate detection, the outer layer is formed with a low friction material allowing the read head to remain in contact with the upper surface of the outer layer during the process of detection. | 06-21-2012 |
20120182693 | REVERSIBLY ADHESIVE THERMAL INTERFACE MATERIAL - The present invention is directed to a reversibly adhesive thermal interface material for electronic components and methods of making and using the same. More particularly, embodiments of the invention provide thermal interface materials that include a thermally-reversible adhesive, and a thermally conductive and electrically non-conductive filler, where the thermal interface material is characterized by a thermal conductivity of 0.2 W/m-K or more and an electrical resistivity of 9×10 | 07-19-2012 |
20120187046 | SILICONE-BASED CHEMICAL FILTER AND SILICONE-BASED CHEMICAL BATH FOR REMOVING SULFUR CONTAMINANTS - Sulfur contaminants, such as elemental sulfur (S | 07-26-2012 |
20120261064 | THERMALLY REVERSIBLE CROSSLINKED POLYMER MODIFIED PARTICLES AND METHODS FOR MAKING THE SAME - Thermal insulating materials and methods of making the thermal insulating material generally include a plurality of thermally reversible crosslinked polymer modified particles. The thermally reversible crosslinked polymer modified particles include a polymer containing a plurality of a first functional group; and a modified particle having a plurality of pendent cross-linking agents containing a second functional group, wherein the first functional group and the second functional group are complementary reactants to a reversible cross-linking reaction. | 10-18-2012 |
20120279768 | Flame Retardant Filler - A flame retardant filler having brominated silica particles, for example, imparts flame retardancy to manufactured articles such as printed circuit boards (PCBs), connectors, and other articles of manufacture that employ thermosetting plastics or thermoplastics. In this example, brominated silica particles serve both as a filler for rheology control (viscosity, flow, etc.) and a flame retardant. In an exemplary application, a PCB laminate stack-up includes conductive planes separated from each other by a dielectric material that includes a flame retardant filler comprised of brominated silica particles. In an exemplary method of synthesizing the brominated silica particles, a monomer having a brominated aromatic functional group is reacted with functionalized silica particles (e.g., isocyanate, vinyl, amine, or epoxy functionalized silica particles). Alternatively, a monomer having a brominated aromatic functional group may be reacted with a silane to produce a brominated alkoxysilane monomer, which is then reacted with the surface of silica particles. | 11-08-2012 |
20130034739 | MICROCAPSULES ADAPTED TO RUPTURE IN A MAGNETIC FIELD TO ENABLE EASY REMOVAL OF ONE SUBSTRATE FROM ANOTHER FOR ENHANCED REWORKABILITY - An enhanced thermal interface material (TIM) gap filler for filling a gap between two substrates (e.g., between a coldplate and an electronics module) includes microcapsules adapted to rupture in a magnetic field. The microcapsules, which are distributed in a TIM gap filler, each have a shell that encapsulates a solvent. One or more organosilane-coated magnetic nanoparticles is/are covalently bound into the shell of each microcapsule. In one embodiment, (3-aminopropyl) trimethylsilane-coated magnetite nanoparticles are incorporated into the shell of a urea-formaldehyde (UF) microcapsule during in situ polymerization. To enable easy removal of one substrate affixed to another substrate by the enhanced TIM gap filler, the substrates are positioned within a magnetic field sufficient to rupture the microcapsule shells through magnetic stimulation of the organosilane-coated magnetic nanoparticles. The ruptured microcapsule shells release the solvent, which dissolves and/or swells the TIM gap filler, thereby reducing the bond strength between the substrates. | 02-07-2013 |
20130057999 | LOW VISCOSITY ELECTROSTATIC DISCHARGE (ESD) DISSIPATING ADHESIVE SUBSTANTIALLY FREE OF AGGLOMERATES - A system, in one embodiment, includes an ESD adhesive operatively coupled to leads of an electronic device for providing ESD protection thereto, the ESD adhesive including a mixture of a polymeric thin film and electrically conductive fillers dispersed in the polymeric thin film, and has a structural characteristic of being formed through at least partial evaporation of a solvent therefrom and being substantially free of agglomerates of the electrically conductive fillers. In another embodiment, a method for providing ESD protection to an element of an electronic device includes preventing formation of agglomerates of electrically conductive fillers in an ESD adhesive that includes a polymeric thin film, the electrically conductive fillers dispersed therein, and a solvent by subjecting the ESD adhesive to high-energy mixing during formation thereof, applying the ESD adhesive across exposed leads, such as leads of a cable, PCB, or other substrate, and evaporating solvent from the ESD adhesive. | 03-07-2013 |
20130061401 | PROCESS FOR TREATING WOVEN GLASS CLOTH - A solvent wash employing a polar washing solvent is employed to effectively remove the sizing agent on a woven glass cloth, while retaining the tensile strength of the woven glass cloth. Loss of tensile strength of the woven glass cloth due to removal of a sizing agent from the woven glass cloth is compensated by simultaneous or subsequent deposition of a coupling agent on surfaces from which the sizing agent is removed. The concurrent removal of the sizing agent and deposition of the coupling agent provides an effective removal of the sizing agent while maintaining sufficient tensile strength to structurally support the woven glass cloth. Further, integration of the removal of the sizing agent and the simultaneous deposition of the coupling agent in the washing solvent in a same processing step can provide a cost-effective manufacturing method for forming a finished woven glass cloth. | 03-14-2013 |
20130089602 | ENCAPSULATED CHELATOR - An enhanced chelator includes a chelating agent and a volatile material encapsulated in a biologically benign microcapsule. The enhanced chelator possesses significantly improved shelf-life in aqueous biological buffer solutions because the chelating agent is encapsulated in the microcapsule and, therefore, separated from solution components with which the chelating agent would react. The enhanced chelator is activated at a predetermined elevated temperature defined by the boiling point of the volatile material. At this predetermined elevated temperature, the volatile material exerts a vapor pressure sufficient to rupture the microcapsule and thereby release the chelating agent from the microcapsule. In one embodiment, a manganese chelator such as ethylene glycol tetraacetic acid (EGTA) is solubilized in ethanol and encapsulated in a poly(lactic-co-glycolide) (PLGA) microsphere. Upon heating to 80° C., ethanol boils within the PLGA microsphere and undergoes several orders of magnitude volume change, thereby rupturing the PLGA microsphere and releasing EGTA. | 04-11-2013 |
20130109565 | MICROCAPSULES ADAPTED TO RUPTURE IN A MAGNETIC FIELD | 05-02-2013 |
20130127069 | MATRICES FOR RAPID ALIGNMENT OF GRAPHITIC STRUCTURES FOR STACKED CHIP COOLING APPLICATIONS - The chip stack of semiconductor chips with enhanced cooling apparatus includes a first chip and a second chip electrically and mechanically coupled by a grid of connectors. The chip stack includes a thermal interface material (TIM) between the first chip and the second chip. The TIM includes nanofibers aligned parallel to mating surfaces of the first and second chips, and a thermosetting polymer that when heated, will reduce the viscosity of the TIM to allow for optimal alignment of the carbon nanofibers. The method includes adding at least one thermosetting polymer to the TIM, dispersing nanofibers into the TIM, and heating the TIM until the thermosetting polymer un-crosslinks. The method further includes applying a magnetic field to align the graphite nanofibers and cooling the TIM until the thermosetting polymer re-crosslinks. | 05-23-2013 |
20130154058 | HIGH SURFACE AREA FILLER FOR USE IN CONFORMAL COATING COMPOSITIONS - A high surface area filler, a conformal coating composition, and an apparatus. The high surface area filler comprises an amorphous silicon dioxide powder and a phosphine compound bonded to the amorphous silicon dioxide powder. The conformal coating composition comprises a conformal coating and the high surface area filler. The apparatus includes an electronic component mounted on a substrate and metal conductors electrically connecting the electronic component. The conformal coating composition overlies the metal conductors and comprises a conformal coating and the high surface area filler. Accordingly, the conformal coating composition is able to protect the metal conductors from corrosion caused by sulfur components (e.g., elemental sulfur, hydrogen sulfide, and/or sulfur oxides) in the air. | 06-20-2013 |
20130179996 | IIMPLEMENTING DATA THEFT PREVENTION - A method and circuit for implementing data theft prevention, and a design structure on which the subject circuit resides are provided. A polymeric resin containing microcapsules surrounds a security card. Each microcapsule contains a conductive material. The conductive material of the microcapsule provides shorting on the security card responsive to the polymer resin and the microcapsule being breached, and a data theft prevention function using the shorting by the conductive material to prevent data theft. | 07-11-2013 |
20130192739 | SILICONE-BASED CHEMICAL FILTER AND SILICONE-BASED CHEMICAL BATH FOR REMOVING SULFUR CONTAMINANTS - Sulfur contaminants, such as elemental sulfur (S | 08-01-2013 |
20130206463 | NON-HALOGENATED FLAME RETARDANT FILLER - A non-halogenated flame retardant filler having phosphorous-modified inorganic particles imparts flame retardancy to manufactured articles such as printed circuit boards (PCBs), connectors, and other articles of manufacture that employ thermosetting plastics or thermoplastics. Phosphorous-modified silica particles, for example, may serve both as a filler for rheology control (viscosity, flow, etc.) and a flame retardant. In an exemplary application, a PCB laminate stack-up includes conductive planes separated from each other by a dielectric material that includes a non-halogenated flame retardant filler comprised of phosphorous-modified silica particles. In an exemplary method of synthesizing phosphorous-modified silica particles, a vinyl-terminated phosphorous-based monomer (e.g., a phosphorous based flame retardant functionalized to contain a vinyl functional group) is reacted with vinyl functionalized silica particles (i.e., the silica particle surface is functionalized to contain a vinyl functional group). Alternatively, hydrosilated terminated silica particles may be reacted with a vinyl-terminated phosphorous-based monomer to produce phosphorous-modified silica particles. | 08-15-2013 |
20130213707 | ANTI-CORROSION CONFORMAL COATING COMPRISING MODIFIED POROUS SILICA FILLERS FOR METAL CONDUCTORS ELECTRICALLY CONNECTING AN ELECTRONIC COMPONENT - A conformal coating comprising modified porous silica particles is disclosed. A porous silica particle, such as MCM-14 or SBA-15 is modified with a sulfur gettering functionality, such as a phosphine compound, covalently bonded to silicon atoms in the porous silica particle. The conformal coating comprising the modified porous silica particles may be applied to metallic wiring areas of a circuit component, with the sulfur gettering functionality preventing sulfur from atmospheric gasses from penetrating the conformal coating to the metallic wiring. | 08-22-2013 |
20130232587 | IMPLEMENTING CARBON NANOTUBE BASED SENSORS FOR CRYPTOGRAPHIC APPLICATIONS - A method and circuit for implementing security protection with carbon nanotube based sensors for cryptographic applications, and a design structure on which the subject circuit resides are provided. A carbon nanotube layer is incorporated with a polymeric encapsulation layer of a security card. Electrical connections to the carbon nanotube layer are provided for electrical monitoring of electrical resistance of the carbon nanotube layer. | 09-05-2013 |
20130256529 | SURFACE-MODIFIED FLUORESCENT CARBON NANOTUBES FOR PRODUCT VERIFICATION - A material may include a medium and carbon nanotubes dispersed in the medium. Fluorescent moieties may be attached to functional groups on a first quantity of the carbon nanotubes. The fluorescent moieties may be in a concentration in the material sufficient to make the material fluoresce in the presence of radiation. The fluorescent moieties may have an emission wavelength that is in or below the visible spectrum. The carbon nanotubes may be dispersed in the medium in a concentration sufficient to make the material electrically conductive at or above the material's electrical percolation threshold. Any suitable product may include the material. Methods for verifying the authenticity of the product may include detecting emissive radiation, testing electrical conductivity, and determining the presence of a structural characteristic of the carbon nanotubes. | 10-03-2013 |
20130263736 | SILICONE-BASED CHEMICAL FILTER AND SILICONE-BASED CHEMICAL BATH FOR REMOVING SULFUR CONTAMINANTS - Sulfur contaminants, such as elemental sulfur (S | 10-10-2013 |
20130270457 | Matrix-Incorporated Fluorescent Silica for Anti-Counterfeiting - The present invention relates to a fluorescent dye-incorporated silica material. A fluorescent dye is covalently bonded to a silica matrix. The invention also provides for a method for verifying the authenticity of a product, wherein the fluorescent silica material is present in or on a product, and the material is tested for fluorescence or structure. | 10-17-2013 |
20130280417 | Hydrophobic Silane Coating for Preventing Conductive Anodic Filament (CAF) Growth in Printed Circuit Boards - An enhanced substrate for making a printed circuit board (PCB) includes a hydrophobic silane coating of a silane composition intermixed with a silane coupling agent applied to a glass fiber substrate. The silane coupling agent is applied to the surface of the substrate for coupling the substrate to a varnish coating. Applying the silane coupling agent to the surface of the substrate creates surface silanols, which are implicated in conductive anodic filament (CAF) growth. A silane composition, which reacts with the surface silanols, is applied to the surface of the substrate having the silane coupling agent applied thereto to form the hydrophobic silane coating. The surface presented by the hydrophobic silane coating/substrate is hydrophobic and essentially silanol-free. This surface is then dried, and varnish is applied thereto. Then, the substrate, hydrophobic silane coating and varnish are subjected to curing conditions to define the PCB. | 10-24-2013 |
20130291369 | FLEXIBLE-TO-RIGID TUBING - A flexible-to-rigid tube is flexible when routed and is then rigidized to increase burst strength. According to the preferred embodiments of the present invention, the flexible-to-rigid tube is included in a cooling plate assembly for transferring heat from electronic components mounted on a circuit board. In one embodiment, the flexible-to-rigid tube (while in a flexible state) includes a polydimethylsiloxane (PDMS) or other silicone containing pendant or terminal epoxy, vinyl and/or acrylate functional groups and an initiator (e.g., a sulfonium salt photoinitiator, a free radical photoinitiator, or a thermal initiator). In another embodiment, triallyl isocyanurate (TAIL) and an initiator are incorporated into a conventional PVC-based tubing material. The flexible-to-rigid tube changes from the flexible state to a rigid state via formation of a cross-linked network upon exposure to actinic radiation or heat. | 11-07-2013 |
20130324639 | Self-Healing Material with Orthogonally Functional Capsules - A self-healing capsule may contain a self-healing agent, a polymer shell encapsulating the self-healing agent, and at least one functional group orthogonal to the surface of the polymer shell. This self-healing capsule may be covalently bonded into a polymeric material by the orthogonal functional group. The self-healing capsules may be formed through microencapsulation. | 12-05-2013 |
20130337273 | THERMAL INTERFACE MATERIAL (TIM) WITH THERMALLY CONDUCTIVE INTEGRATED RELEASE LAYER - A thermal interface material (TIM) includes a modified release layer having an organosilane-coated surface covalently bound to a TIM formulation layer. The modified release layer may be formed by applying an organosilane (e.g., vinyltriethoxysilane) to the surface of a thermally conductive release layer (e.g., aluminum foil). The organosilane reacts with hydroxyl groups on the surface of the thermally conductive release layer. The TIM formulation layer may be formed by applying a TIM formulation (e.g., a graphite TIM formulation) containing an unsaturated monomer (e.g., methyl acrylate) to the organosilane-coated surface of the modified release layer, and then curing the TIM formulation so that the unsaturated monomer of the TIM formulation reacts with the organosilane-coated surface of the modified release layer. | 12-19-2013 |
20130338280 | Flame Retardant Material with Orthogonally Functional Capsules - A flame retardant capsule may contain a flame retardant, a polymer shell encapsulating the flame retardant, and at least one functional group orthogonal to the surface of the polymer shell. This flame retardant capsule may be covalently bonded into a polymeric material by the orthogonal functional group. The flame retardant capsules may be formed through microencapsulation. | 12-19-2013 |
20130340876 | IMPLEMENTING LEAK PREVENTION OF WATER COOLING HOSES - A method and structure are provided for implementing leak prevention of water cooling hoses. A water cooling hose includes an inner hose layer and an outer hose layer. Potential water leaks are prevented from the water cooling hose or tubing by sealing of the cut end of the tubing after sizing of the water cooling hose has been completed. The cut end of the water cooling hose is dipped into a selected solution bath, and upon removal a seal is formed before hose assembly is provided. | 12-26-2013 |
20130341528 | Matrix-Incorporated Fluorescent Silica with On/Off Functionality for Anti-Counterfeiting - A fluorescent material includes a silica matrix, and a fluorescent dye compound covalently bonded to the silica matrix. The fluorescent dye compound may have first and second absorption wavelengths and an emission wavelength. A method for producing a photoswitchable fluorescent material includes combining silane monomers and fluorescent silane dyes, and initiating a polymerization reaction between the silane monomers and the photoswitchable fluorescent silane dyes, thereby creating photoswitchable fluorescent dye compounds covalently bonded to a silica matrix. The authenticity of a product may be verified according to a method in which a fluorescent material is present in or on a product, and the material is tested for fluorescence at first and second absorption wavelengths, the presence of structural characteristics, or both. The fluorescent material may exhibit on/off functionality through the use of the fluorescent material at different absorption wavelengths. | 12-26-2013 |
20140000955 | Conformal Coating Capable of Scavenging a Corrosive Agent | 01-02-2014 |
20140035278 | IIMPLEMENTING INTERFACE FREE HOSE-TO-BARB CONNECTION - A method and structures are provided for implementing hose-to-barb connections for water cooling hoses. The water cooling hose is assembled with a barbed fitting to create an interface free joint between a hose material and the barbed fitting. The hose material contains microcapsules which contain a catalyst and/or a combination of microcapsules which contain monomer and catalyst in separate microcapsules that promote polymerization when ruptured. The hose material contains functional groups that can be polymerized with a functionality that is contained on the hose surface. This process creates a secure interface free covalent bond, thus preventing leaks from occurring. | 02-06-2014 |
20140041908 | FLAME RETARDANT FILLERS PREPARED FROM BRIDGED POLYSILSESQUIOXANES - A bridged polysilsesquioxane-based flame retardant filler imparts flame retardancy to manufactured articles such as printed circuit boards (PCBs), connectors, and other articles of manufacture that employ thermosetting plastics or thermoplastics. In an exemplary synthetic method, a bridged polysilsesquioxane-based flame retardant filler is prepared by sol-gel polymerization of a monomer having two or more trialkoxysilyl groups attached to an organic bridging group that contains a fire retardant group (e.g., a halogen atom, a phosphinate, a phosphonate, a phosphate ester, and combinations thereof). Bridged polysilsesquioxane particles formed by sol-gel polymerization of (((2,5-dibromo-1,4-phenylene)bis(oxy))bis(ethane-2,1-diyl))bis(trimethoxysilane), for example, and follow-on sol-gel processing may serve both as a filler for rheology control (viscosity, flow, etc.) and a flame retardant. In an exemplary application, a PCB laminate stack-up includes conductive planes separated from each other by a dielectric material that includes a bridged polysilsesquioxane-based flame retardant filler. | 02-13-2014 |
20140069250 | TEXTURING OF A STORAGE CELL FOR REDUCED FRICTION RETENTION OF A DATA STORAGE CARTRIDGE - Described are embodiments of an invention for a method and a tool to produce a textured surface on the retention tab of a storage cell. The tool has a form that fits within the storage cell. The form has a hard material with a hard surface with contacts a surface of the retention tab within the storage cell. The movement of the hard surface across the surface of the retention tab produces a textured surface on the retention tab. The textured interface between a notch of a data storage cartridge and a retention tab of a storage cell provides a consistent and low friction force that retains the data storage cartridge within the cell but allows the accessor to easily remove the data storage cartridge when needed. | 03-13-2014 |
20140071609 | REDUCED FRICTION RETENTION OF A DATA STORAGE CARTRIDGE WITHIN A STORAGE CELL - Described are embodiments of an invention for a textured interface between a notch of a data storage cartridge and a retention tab of a storage cell. The textured surface reduces the contact surface between the retention tab and the notch of the data storage cartridge. The reduced contact surface between the retention tab and notch of the data storage cartridge reduces the amount of friction between the retention tab and the notch of the data storage cartridge. The data storage cartridge can thus be removed from the storage cell with less force than that required by the prior art having a generally smooth interface between the notch of the data storage cartridge and the retention tab of the storage cell. | 03-13-2014 |
20140072777 | THERMALLY CROSS-LINKABLE PHOTO-HYDROLYZABLE INKJET PRINTABLE POLYMERS FOR MICROFLUIDIC CHANNELS - Thermally cross-linkable photo-hydrolyzable inkjet printable polymers are used to print microfluidic channels layer-by-layer on a substrate. In one embodiment, for each layer, an inkjet head deposits droplets of a mixture of hydrophobic polymer and cross-linking agent in a pattern lying outside a two-dimensional layout of the channels, and another inkjet head deposits droplets of a mixture of poly(tetrahydropyranyl methacrylate) PTHPMA (or another hydrophobic polymer which hydrolyzes to form a hydrophilic material), cross-linking agent, and a photoacid generator (PAG) in a pattern lying inside the two-dimensional layout of the channels. After all layers are printed, flood exposure of the entire substrate to UV radiation releases acid from the PAG which hydrolyzes PTHPMA to form hydrophilic poly(methacrylic acid) PMAA, thereby rendering the PTHPMA regions hydrophilic. The layers of these now-hydrophilic patterned regions together define the microfluidic channels. The cross-linking agent (e.g., triallyl isocyanurate TAIC) forms covalent cross-links between the two polymer phases. | 03-13-2014 |
20140076524 | MULTILAYER HOSE WITH LEAK PREVENTATIVE INTERFACIAL LAYER CONTAINING SUPER ABSORBENT POLYMER (SAP) - A multilayer hose is provided with a leak preventative interfacial layer that includes a super absorbent polymer (SAP) interposed between an inner layer and an outer layer. In one embodiment, the inner and outer layers are made of ethylene propylene diene monomer (M-class) (EPDM) rubber, and the interfacial layer is covalently bonded to the inner layer (and, optionally, to the outer layer) via a curing reaction between the EPDM rubber of at least the inner layer and a vinyl functionalized reaction product of alginic acid and acryloyl chloride of the interfacial layer. In addition, a reinforcement layer (e.g., textile filaments braided, knitted, or spirally wound onto the interfacial layer) is disposed between the inner and outer layers. In some embodiments, one or more SAP-equipped multilayer hoses interconnect liquid-coolant cooling system components (e.g., cold plates, headers, manifolds, pumps, reservoirs, and heat exchangers) of an apparatus that removes heat from electronic components. | 03-20-2014 |
20140127396 | ELECTROSTATIC DISCHARGE (ESD) PROTECTION USING LOW VISCOSITY ESD DISSIPATING ADHESIVE SUBSTANTIALLY FREE OF AGGLOMERATES - In one embodiment, a method for providing ESD protection to an element of an electronic device includes preventing formation of agglomerates of electrically conductive fillers in an ESD adhesive that includes a polymeric thin film, the electrically conductive fillers dispersed therein, and a solvent by subjecting the ESD adhesive to high-energy mixing during formation thereof, applying the ESD adhesive across exposed leads, such as leads of a cable, PCB, or other substrate, and evaporating solvent from the ESD adhesive. | 05-08-2014 |
20140143881 | IMPLEMENTING CONDUCTIVE MICROCAPSULE RUPTURE TO GENERATE A TAMPER EVENT FOR DATA THEFT PREVENTION - A method and circuit for implementing conductive microcapsule rupture to generate a tamper event for data theft prevention, and a design structure on which the subject circuit resides are provided. A polymeric resin containing microcapsules surrounds a security card and a tamper sensor device provided with the securing card. Each microcapsule contains a conductive material. The conductive material of the microcapsule disperses onto the tamper sensor device on the security card responsive to the microcapsule being ruptured to create a change in resistance, reducing the resistance of a security mesh of the tamper sensor device. The microcapsules are more sensitive to pressure than a tamper mesh of the tamper sensor device and therefore rupture first, creating the change in resistance when dispersed onto the tamper sensor device. The resistance change is detected by the tamper sensor device and the security card is disabled to prevent data theft. | 05-22-2014 |
20140145094 | CARBON NANOTUBES WITH FLUORESCENT SURFACTANT - A fluorescent material may include a medium, carbon nanotubes dispersed in the medium, and a fluorescent surfactant. The fluorescent surfactant may be adsorbed to a surface of some of the carbon nanotubes in a concentration sufficient to make the material fluoresce in the presence of radiation. The material may be applied to a material and tested for fluorescence, electrical conductivity, or carbon nanotube structure. | 05-29-2014 |
20140182481 | RENEWABLE SELF-HEALING CAPSULE SYSTEM - A renewable material for releasing a self-healing agent includes a renewable polymeric substrate with capsules and a reactant dispersed in the renewable polymeric substrate. The capsules may be formed from a first renewable shell polymer and may enclose the renewable self-healing agent. The reactant may be suitable for reacting with the renewable self-healing agent to form a polymer. | 07-03-2014 |
20140191841 | CONFORMAL COATING TO SCAVENGE ELEMENTAL SULFUR - A corrosion-resistant apparatus may contain an electronic component having a first metal and a polymer coating covering the electronic component. The polymer coating includes polymer chains with unsaturated groups to scavenge sulfur and an anionic initiator dispersed in the polymer coating to convert cyclic elemental sulfur to linear polysulfide. | 07-10-2014 |
20140194616 | FLAME RETARDANT CELLULOSE ACETATE - Flame retardant cellulose acetate is prepared comprising cellulose acetate flakes and an organophosphate compound bonded to the cellulose acetate flakes. Accordingly, the bonded phosphate-functional group provides the cellulose acetate flakes with pendant phosphate ester functionality. Numerous phosphate derivatives can be envisaged that will accomplish the intended task. | 07-10-2014 |
20140194617 | FLAME RETARDANT CELLULOSE - Flame retardant cellulose is prepared comprising cellulose fibers and an organophosphate compound bonded to the cellulose fibers. Accordingly, the bonded phosphate-functional group provides the cellulose fibers with pendant phosphate ester functionality. Numerous phosphate derivatives can be envisaged that will accomplish the intended task. | 07-10-2014 |
20140202573 | IMPLEMENTING PRE-TREATMENT OF WATER COOLING HOSES TO INCREASE RELIABILITY - Pre-treated water cooling hoses and a method for implementing pretreatment of water cooling hoses for increased reliability are provided. Pretreatment of the water cooling hoses includes attaching the water cooling hose to a water cooling system, filling the water cooling system with a high concentration corrosion inhibitor solution, and running the system for an extended time to saturate the attached hose with the high concentration corrosion inhibitor. | 07-24-2014 |
20140215905 | MICROCAPSULES ADAPTED TO RUPTURE IN A MAGNETIC FIELD - Controlled release of one or more agricultural chemicals is provided by microcapsules adapted to rupture in a magnetic field. The microcapsules, which may be applied to soil, seeds and/or plants, each have a shell that encapsulates an agricultural chemical, such as a fertilizer, herbicide or insecticide. One or more organosilane-coated magnetic nanoparticles is/are covalently bound into the shell of each microcapsule. For example, (3-aminopropyl) trimethylsilane-coated magnetite nanoparticles may be incorporated into the shell of a urea-formaldehyde (UF) microcapsule during in situ polymerization. In one embodiment, microcapsules encapsulating a fertilizer are applied during seed planting. Controlled release is subsequently triggered after an appropriate period of dormancy by positioning a magnetic field generating device proximate the microcapsules to generate a magnetic field sufficient to rupture the microcapsule shells through magnetic stimulation of the organosilane-coated magnetic nanoparticles. The ruptured microcapsule shells release the fertilizer. | 08-07-2014 |
20140221202 | MICROCAPSULES ADAPTED TO RUPTURE IN A MAGNETIC FIELD - Controlled release of one or more agricultural chemicals is provided by microcapsules adapted to rupture in a magnetic field. The microcapsules, which may be applied to soil, seeds and/or plants, each have a shell that encapsulates an agricultural chemical, such as a fertilizer, herbicide or insecticide. One or more organosilane-coated magnetic nanoparticles is/are covalently bound into the shell of each microcapsule. For example, (3-aminopropyl)trimethylsilane-coated magnetite nanoparticles may be incorporated into the shell of a urea-formaldehyde (UF) microcapsule during in situ polymerization. In one embodiment, microcapsules encapsulating a fertilizer are applied during seed planting. Controlled release is subsequently triggered after an appropriate period of dormancy by positioning a magnetic field generating device proximate the microcapsules to generate a magnetic field sufficient to rupture the microcapsule shells through magnetic stimulation of the organosilane-coated magnetic nanoparticles. The ruptured microcapsule shells release the fertilizer. | 08-07-2014 |
20140221212 | MICROCAPSULES ADAPTED TO RUPTURE IN A MAGNETIC FIELD - Controlled release of one or more agricultural chemicals is provided by microcapsules adapted to rupture in a magnetic field. The microcapsules, which may be applied to soil, seeds and/or plants, each have a shell that encapsulates an agricultural chemical, such as a fertilizer, herbicide or insecticide. One or more organosilane-coated magnetic nanoparticles is/are covalently bound into the shell of each microcapsule. For example, (3-aminopropyl)trimethylsilane-coated magnetite nanoparticles may be incorporated into the shell of a urea-formaldehyde (UF) microcapsule during in situ polymerization. In one embodiment, microcapsules encapsulating a fertilizer are applied during seed planting. Controlled release is subsequently triggered after an appropriate period of dormancy by positioning a magnetic field generating device proximate the microcapsules to generate a magnetic field sufficient to rupture the microcapsule shells through magnetic stimulation of the organosilane-coated magnetic nanoparticles. The ruptured microcapsule shells release the fertilizer. | 08-07-2014 |
20140262192 | THERMALLY REVERSIBLE THERMAL INTERFACE MATERIALS WITH IMPROVED MOISTURE RESISTANCE - The present invention is directed to a reversibly adhesive thermal interface material for electronic components and methods of making and using the same. More particularly, embodiments of the invention provide thermal interface materials that include a hydrolytically-stable, thermally-reversible adhesive, and a thermally conductive and electrically non-conductive filler, where the thermal interface material is characterized by a thermal conductivity of 0.2 W/m-K or more and an electrical resistivity of 9×10 | 09-18-2014 |
20140271481 | MATRIX-INCORPORATED FLUORESCENT POROUS AND NON-POROUS SILICA PARTICLES FOR MEDICAL IMAGING - A silica particle for medical imaging includes a bridged silane fluorescent dye incorporated throughout the particle matrix. Copolymerization of a bridged silane fluorescent dye (e.g., (R′O) | 09-18-2014 |
20140271894 | MATRIX-INCORPORATED FLUORESCENT POROUS SILICA PARTICLES FOR DRUG DELIVERY - A fluorescent porous silica particle for drug delivery includes a bridged silane fluorescent dye incorporated throughout the particle's matrix. Copolymerization of a bridged silane fluorescent dye (e.g., (R′O) | 09-18-2014 |
20140343232 | RESIN COMPOSITION ELIMINATING VOLATILE LOSS OF INITIATING SPECIES FOR THE PREPARATION OF PRINTED CIRCUIT BOARD LAMINATES - An enhanced prepreg for printed circuit board (PCB) laminates includes a substrate and a resin applied to the substrate. The resin includes a curable polymer and a polymerization initiator polymer having a backbone with a free radical initiator forming segment that breaks apart upon being subjected to heat to generate a plurality of non-volatile initiating species. This resin composition eliminates possible volatile loss of the free radical initiator during all processing steps in the preparation of PCB laminates. The resin may additionally include a cross-linking agent, flame retardant and viscosity modifiers. In one embodiment, a sheet of woven glass fibers is impregnated with the resin and subsequently dried or cured. The glass cloth substrate may include a silane coupling agent to couple the resin to the substrate. In another embodiment, resin coated copper (RCC) is prepared by applying the resin to copper and subsequently curing the resin. | 11-20-2014 |
20140354398 | Authenticating and Tracking a Valuable Asset Within the Confines of a Safe - An approach is provided to track a hard asset in a smart safe. In the approach, the hard asset is registered with a computing system that is associated with the smart safe. The registration of the hard asset include storing at least one physical attribute of the hard asset in a computer memory. The approach then monitors the presence of the hard asset in the smart safe. If removal of the hard asset is detected, a predefined security action is performed, such as contacting the owner or security personnel. | 12-04-2014 |
20140363091 | TAMPER DETECTION WITH MICROCASPULE RUPTURE - Exemplary embodiments of the present invention disclose a method for detecting a tampering event of a component. In a step, an exemplary embodiment encapsulates a fluorescent dye in one or more microcapsules. In another step, an exemplary embodiment embeds the one or more microcapsules in a translucent polymeric resin. In another step, an exemplary embodiment secures at least part of a component in the translucent polymeric resin. In another step, an exemplary embodiment detects a fluorescence of the fluorescent dye from a microcapsule in the translucent polymeric resin that is ruptured during a tampering with a light source that causes the fluorescent dye to fluoresce. | 12-11-2014 |
20150015246 | CALIBRATING READ SENSORS OF ELECTROMAGNETIC READ-WRITE HEADS - Described are embodiments to calibrate read sensors, which in turn may ensure that the equipment utilized to detect antigens is reliable and accurate. If it is determined that a read sensor is degraded a method of calibrating a read sensor of a read head may be used. | 01-15-2015 |
20150031906 | FLAME RETARDANT FILLER - A flame retardant filler having brominated silica particles, for example, imparts flame retardancy to manufactured articles such as printed circuit boards (PCBs), connectors, and other articles of manufacture that employ thermosetting plastics or thermoplastics. In this example, brominated silica particles serve both as a filler for rheology control (viscosity, flow, etc.) and a flame retardant. In an exemplary application, a PCB laminate stack-up includes conductive planes separated from each other by a dielectric material that includes a flame retardant filler comprised of brominated silica particles. In an exemplary method of synthesizing the brominated silica particles, a monomer having a brominated aromatic functional group is reacted with functionalized silica particles (e.g., isocyanate, vinyl, amine, or epoxy functionalized silica particles). Alternatively, a monomer having a brominated aromatic functional group may be reacted with a silane to produce a brominated alkoxysilane monomer, which is then reacted with the surface of silica particles. | 01-29-2015 |
20150097552 | CALIBRATION CORRELATION FOR CALIBRATION ASSEMBLY HAVING ELECTROMAGNETIC READ HEAD - According to one embodiment a method of performing a calibration correlation test for a calibration assembly includes sweeping a head module having a magnetic read sensor along a y-axis of the calibration assembly. The calibration assembly has at least one calibration trench having at least one nanoparticle at a known y-axis location in the calibration trench and the magnetic properties are known for the at least one nanoparticle. A read response of the at least one nanoparticles is obtained from the magnetic read sensor and a correlation is determined from the read response. The correlation of the read response is compared to a correlation threshold. The read response correlation is stored in memory in response to determining that the correlation of the read response is greater than the correlation threshold. When the correlation of the read response is not greater than the correlation threshold, a correlation test error is indicated. | 04-09-2015 |
20150097576 | CALIBRATION ASSEMBLY FOR AIDE IN DETECTION OF ANALYTES WITH ELECTROMAGNETIC READ-WRITE HEADS - According to one embodiment, a calibration assembly includes an outer layer having at least one calibration trench extending along a y-axis, and an encapsulation layer within the calibration trench. The encapsulation layer has a plurality of nanoparticles spaced apart along said y-axis of said at least one calibration trench. Each of said plurality of nanoparticles are provided at known y-axis locations in said calibration trench, and each of the plurality of nanoparticles have a known magnetic property. | 04-09-2015 |
20150109734 | SURFACE MODIFICATION OF HOSES TO REDUCE DEPLETION OF CORROSION INHIBITOR - An inside surface of a hose for use with liquid-cooled cooling plate assemblies and other applications that contain copper (Cu) components is pre-treated with a passivating agent to reduce depletion of a copper corrosion inhibitor (e.g., benzotriazole (BTA)) dissolved in a liquid coolant (e.g., deionized water) that flows through the hose. Exemplary passivating agents include, but are not limited to, aliphatic alcohols (e.g., 1-hexanol), alkoxysilanes (e.g., (3-aminopropyl)triethoxysilane), and multidentate polymers (e.g., polyvinyl alcohol (PVA)). In one embodiment, a solution of pre-hydrolyzed (3-aminopropyl)triethoxysilane and deionized water is passed through a multilayer hose to form a pre-treated multilayer hose. In some embodiments, one or more pre-treated hoses interconnect liquid-coolant cooling system components (e.g., cold plates, headers, manifolds, pumps, reservoirs, and heat exchangers) of a cooling apparatus that removes heat from one or more electronic components. | 04-23-2015 |
20150148499 | FLAME RETARDANT BLOCK COPOLYMERS FROM RENEWABLE FEEDS - A flame retardant block copolymer is prepared from renewable content. In an exemplary synthetic method, a bio-derived flame retardant block copolymer is prepared by a ring opening polymerization of a biobased cyclic ester and a phosphorus-containing polymer. In some embodiments, the biobased cyclic ester is lactide. In some embodiments, the phosphorus-containing polymer is a hydroxyl-telechelic flame retardant biopolymer prepared by a polycondensation reaction of a biobased diol (e.g., isosorbide) and a phosphorus-containing monomer (e.g., phenylphosphonic dichloride). In other embodiments, the phosphorus-containing polymer is synthesized from a dioxaphospholane monomer. | 05-28-2015 |
20150148519 | FLAME RETARDANT POLYMERS CONTAINING RENEWABLE CONTENT - A flame retardant polymer is prepared from renewable content. In an exemplary synthetic method, a bio-derived flame retardant polymer is prepared by a polycondensation reaction of a biobased diol (e.g., isosorbide) and a phosphorus-containing monomer (e.g., phenylphosphonic dichloride). The biobased diol may be obtained either directly from, or through modification of, a biological product. Preferably, at least 50% of the mass of the biobased diol is obtained directly from a biological product. The phosphorus-containing monomer may be a phosphonic dichloride, dichlorophosphate, alkyl/aryl phosphonate, or other phosphorus-containing monomer known for flame retardancy. | 05-28-2015 |
20150197642 | CONFORMAL COATING COMPOSITION CONTAINING METAL NANOPARTICLES TO PREVENT SULFUR RELATED CORROSION - A conformal coating composition for protecting a metal surface from sulfur related corrosion includes a polymer and metal nanoparticles blended with the polymer. In accordance with some embodiments of the present invention, an apparatus includes an electronic component mounted on a substrate, metal conductors electronically connecting the electronic component, and a polymer conformal coating containing metal nanoparticles overlying the metal conductors. Accordingly, the metal nanoparticle-containing conformal coating is able to protect the metal conductors from corrosion caused by sulfur components (e.g., elemental sulfur, hydrogen sulfide, and/or sulfur oxides) in the air. That is, the metal nanoparticles in the conformal coating react with any corrosion inducing sulfur component in the air and prevent the sulfur component from reacting with the underlying metal conductors. | 07-16-2015 |
20150225510 | FLAME RETARDANT POLYMERS CONTAINING RENEWABLE CONTENT - A flame retardant polymer is prepared from renewable content. In an exemplary synthetic method, a bio-derived flame retardant polymer is prepared by a polycondensation reaction of a biobased diol (e.g., isosorbide) and a phosphorus-containing monomer (e.g., phenylphosphonic dichloride). The biobased diol may be obtained either directly from, or through modification of, a biological product. Preferably, at least 50% of the mass of the biobased diol is obtained directly from a biological product. The phosphorus-containing monomer may be a phosphonic dichloride, dichlorophosphate, alkyl/aryl phosphonate, or other phosphorus-containing monomer known for flame retardancy. | 08-13-2015 |
20150225511 | FLAME RETARDANT POLYMERS CONTAINING RENEWABLE CONTENT - A flame retardant polymer is prepared from renewable content. In an exemplary synthetic method, a bio-derived flame retardant polymer is prepared by a polycondensation reaction of a biobased diol (e.g., isosorbide) and a phosphorus-containing monomer (e.g., phenylphosphonic dichloride). The biobased diol may be obtained either directly from, or through modification of, a biological product. Preferably, at least 50% of the mass of the biobased diol is obtained directly from a biological product. The phosphorus-containing monomer may be a phosphonic dichloride, dichlorophosphate, alkyl/aryl phosphonate, or other phosphorus-containing monomer known for flame retardancy. | 08-13-2015 |
20150231280 | MATRIX-INCORPORATED FLUORESCENT POROUS AND NON-POROUS SILICA PARTICLES FOR MEDICAL IMAGING - A silica particle for medical imaging includes a bridged silane fluorescent dye incorporated throughout the particle matrix. Copolymerization of a bridged silane fluorescent dye (e.g., (R′O) | 08-20-2015 |
20150259510 | SMART COMPOSITES CONTAINING MODIFIED CELLULOSIC NANOMATERIALS - In accordance with some embodiments of the present invention, a composite material is prepared by blending a bio-derived filler into a polymer, wherein the filler includes a diene-modified cellulosic nanomaterial (e.g., cellulose nanocrystals (CNCs) and/or cellulose nanofibrils (CNFs) functionalized to contain a diene) and a dienophile-modified cellulosic nanomaterial (e.g., CNCs and/or CNFs functionalized to contain a dienophile). The modulus of the composite material is reversibly controllable by adjusting a degree of crosslinking between the diene-modified cellulosic nanomaterial and the dienophile-modified cellulosic nanomaterial. This degree of crosslinking is thermally reversible. On one hand, the degree of crosslinking may be increased via a Diels-Alder (DA) cycloaddition reaction at a first temperature, thereby increasing the modulus of the composite material. On the other hand, the degree of crosslinking may be decreased via a retro-DA reaction at a second temperature higher than the first temperature, thereby decreasing the modulus of the composite material. | 09-17-2015 |
20150259514 | SMART COMPOSITES CONTAINING MODIFIED CELLULOSIC NANOMATERIALS - In accordance with some embodiments of the present invention, a composite material is prepared by blending a bio-derived filler into a polymer, wherein the filler includes a diene-modified cellulosic nanomaterial (e.g., cellulose nanocrystals (CNCs) and/or cellulose nanofibrils (CNFs) functionalized to contain a diene) and a dienophile-modified cellulosic nanomaterial (e.g., CNCs and/or CNFs functionalized to contain a dienophile). The modulus of the composite material is reversibly controllable by adjusting a degree of crosslinking between the diene-modified cellulosic nanomaterial and the dienophile-modified cellulosic nanomaterial. This degree of crosslinking is thermally reversible. On one hand, the degree of crosslinking may be increased via a Diels-Alder (DA) cycloaddition reaction at a first temperature, thereby increasing the modulus of the composite material. On the other hand, the degree of crosslinking may be decreased via a retro-DA reaction at a second temperature higher than the first temperature, thereby decreasing the modulus of the composite material. | 09-17-2015 |
20150259526 | SMART COMPOSITES CONTAINING MODIFIED CELLULOSIC NANOMATERIALS - In accordance with some embodiments of the present invention, a composite material is prepared by blending a bio-derived filler into a polymer, wherein the filler includes a diene-modified cellulosic nanomaterial (e.g., cellulose nanocrystals (CNCs) and/or cellulose nanofibrils (CNFs) functionalized to contain a diene) and a dienophile-modified cellulosic nanomaterial (e.g., CNCs and/or CNFs functionalized to contain a dienophile). The modulus of the composite material is reversibly controllable by adjusting a degree of crosslinking between the diene-modified cellulosic nanomaterial and the dienophile-modified cellulosic nanomaterial. This degree of crosslinking is thermally reversible. On one hand, the degree of crosslinking may be increased via a Diels-Alder (DA) cycloaddition reaction at a first temperature, thereby increasing the modulus of the composite material. On the other hand, the degree of crosslinking may be decreased via a retro-DA reaction at a second temperature higher than the first temperature, thereby decreasing the modulus of the composite material. | 09-17-2015 |
20150274848 | FLAME RETARDANT MODIFIED CELLULOSIC NANOMATERIALS (FR-CNs) PREPARED USING PHOSPHORUS-CONTAINING MONOMERS - In accordance with some embodiments of the present invention, a composite material is prepared by blending a flame retardant modified cellulosic nanomaterial (FR-CN) filler into a polymer, wherein the FR-CN filler comprises a cellulosic nanomaterial (e.g., cellulose nanocrystals (CNCs) and/or cellulose nanofibrils (CNFs)) having a surface functionalized to incorporate a phosphorus-containing moiety. In some embodiments, the FR-CN filler is prepared by reacting hydroxyl groups on the surface of the cellulosic nanomaterial and a halogenated phosphorous-containing monomer (e.g., diphenyl phosphoryl chloride). In some embodiments, the surface of the cellulosic nanomaterial is further functionalized to incorporate an orthogonal functionality selected to enhance the compatibility of the FR-CN filler with the polymer by reacting hydroxyl groups on the surface of the cellulosic nanomaterial and a monomer (e.g., epichlorohydrin when the polymer is an epoxy-based polymer). | 10-01-2015 |
20150284485 | INITIATION OF CONTROLLED RADICAL POLYMERIZATION FROM LACTIDE MONOMER - A lactide-functionalized polymer is synthesized by polymerizing a monomer capable of undergoing radical polymerization (e.g., styrenic, vinylic, acrylic, etc.) using a brominated lactide initiator via atom transfer radical polymerization (ATRP). In some embodiments of the present invention, the brominated lactide initiator is 3-bromo-3,6-dimethyl-1,4-dioxane-2,5-dione prepared by reacting lactide with N-bromosuccinimide in the presence of benzoyl peroxide. | 10-08-2015 |
20150284497 | VERSATILE, FACILE AND SCALABLE ROUTE TO POLYLACTIC ACID-BACKBONE GRAFT AND BOTTLEBRUSH COPOLYMERS - Polylactic acid-backbone graft and bottlebrush copolymers are synthesized by polymerizing a lactide-functionalized macromonomer using ring opening polymerization (ROP). In some embodiments of the present invention, the macromonomer is a lactide-functionalized polymer that may be synthesized by, for example, polymerizing a monomer capable of undergoing radical polymerization (e.g., styrenic, vinylic, acrylic, etc.) using a brominated lactide initiator via atom transfer radical polymerization (ATRP). The brominated lactide initiator may be 3-bromo-3,6-dimethyl-1,4-dioxane-2,5-dione prepared by, for example, reacting lactide with N-bromosuccinimide in the presence of benzoyl peroxide. | 10-08-2015 |
20150284506 | VERSATILE, FACILE AND SCALABLE ROUTE TO POLYLACTIC ACID-BACKBONE GRAFT AND BOTTLEBRUSH COPOLYMERS - Polylactic acid-backbone graft and bottlebrush copolymers are synthesized by polymerizing a lactide-functionalized macromonomer using ring opening polymerization (ROP). In some embodiments of the present invention, the macromonomer is a lactide-functionalized polymer that may be synthesized by, for example, polymerizing a monomer capable of undergoing radical polymerization (e.g., styrenic, vinylic, acrylic, etc.) using a brominated lactide initiator via atom transfer radical polymerization (ATRP). The brominated lactide initiator may be 3-bromo-3,6-dimethyl-1,4-dioxane-2,5-dione prepared by, for example, reacting lactide with N-bromosuccinimide in the presence of benzoyl peroxide. | 10-08-2015 |
20150318269 | Method for Carbon Nanotube Alignment Using Magnetic Nanoparticles - The chip stack of semiconductor chips with enhanced cooling apparatus includes a first chip with circuitry on a first side and a second chip electrically and mechanically coupled to the first chip by a grid of connectors. The chip stack further includes a thermal interface material pad between the first chip and the second chip. The thermal interface material pad comprises a plurality of nanotubes containing a magnetic material, aligned parallel to mating surfaces of the first chip and the second chip, wherein a hydrophobic tail of oleic acid is wrapped around each one of the plurality of nanotubes and a hydrophilic acid head of the oleic acid is attached to the magnetic material. | 11-05-2015 |
20150343352 | SULFUR SCAVENGING MATERIALS FOR FILTERS AND COATINGS - Materials which react with (“scavenge”) sulfur compounds, such as hydrogen sulfide and mercaptans, are used to limit sulfur-induced corrosion. Filters and protective coatings including these materials, described broadly as polyhexahydrotriazines (PHT) and polyhemiaminals (PHA), are disclosed. Methods of using these materials to prevent corrosion are described. PHT and PHA materials have excellent thermal and mechanical properties for many applications as coatings and filtration media. Specifically, PHT and PHA materials react with sulfur compounds in such a manner as to incorporate sulfur atoms into the polymeric matrix, thus sequestering the sulfur atoms and allowing removal from fluids such as crude oil, natural gas, hydrocarbon combustion exhaust gases, sulfur polluted air and water. A coating PHT or PHA material on a component to be protected similarly reacts with sulfur compounds prior to sulfur being able to penetrate to the component. | 12-03-2015 |
20150343421 | SULFUR SCAVENGING MATERIALS - Materials which react with (“scavenge”) sulfur compounds, such as hydrogen sulfide and mercaptans, are useful for limiting sulfur-induced corrosion. Surface-modified particles incorporating a hexahydrotriazine moiety are disclosed and used as sulfur scavengers. These surface-modified particles are used a filter media in fixed filter systems and as additives to fluids including sulfur compounds. The hexahydrotriazine moiety can react with sulfur compounds in such a manner as to bind sulfur atoms to the surface-modified particles, thus allowing removal of the sulfur atoms from fluids such as crude oil, natural gas, hydrocarbon combustion exhaust gases, sulfur polluted air and water. The surface-modified particles may, in general, be sized to allow separation of the particles from the process fluid by sedimentation, size-exclusion filtration or the like. | 12-03-2015 |
20150344628 | PREPARATION OF THIOETHER POLYMERS - Polythioethers and methods for forming polythioethers are disclosed herein. The polythioethers are prepared from thiols and hexahydrotriazines. The thiols may be, for example, dithiols, trithiols, monothiols, or mixtures thereof. The polythioethers are prepared from an efficient and simple synthetic method, and the properties of the prepared polythioethers can be readily tuned. The prepared polythioethers may additionally have improved thermal properties, improved mechanical properties, and enhanced functionality. | 12-03-2015 |
20150344629 | PREPARATION OF THIOETHER POLYMERS - Polythioethers and methods for forming polythioethers are disclosed herein. The polythioethers are prepared from thiols and hexahydrotriazines. The thiols may be, for example, dithiols, trithiols, monothiols, or mixtures thereof. The polythioethers are prepared from an efficient and simple synthetic method, and the properties of the prepared polythioethers can be readily tuned. The prepared polythioethers may additionally have improved thermal properties, improved mechanical properties, and enhanced functionality. | 12-03-2015 |
20150344633 | PREPARATION OF FUNCTIONAL POLYSULFONES - Polysulfones and methods for forming polysulfones are disclosed herein. The polysulfones are prepared from thiols and hexahydrotriazines. The thiols may be, for example, dithiols, trithiols, monothiols, or mixtures thereof. The thiols and hexahydrotriazines may be polymerized to form a polythioether. The polythioether may thereafter be oxidized to form a polysulfone. The polysulfones are prepared from an efficient and simple synthetic method, and the properties of the prepared polysulfones can be readily tuned. The prepared polysulfones may have improved thermal properties, improved mechanical properties, and enhanced functionality. | 12-03-2015 |
20150353584 | SULFUR SCAVENGING MATERIALS - Materials which react with (“scavenge”) sulfur compounds, such as hydrogen sulfide and mercaptans, are useful for limiting sulfur-induced corrosion. Surface-modified particles incorporating a hexahydrotriazine moiety are disclosed and used as sulfur scavengers. These surface-modified particles are used a filter media in fixed filter systems and as additives to fluids including sulfur compounds. The hexahydrotriazine moiety can react with sulfur compounds in such a manner as to bind sulfur atoms to the surface-modified particles, thus allowing removal of the sulfur atoms from fluids such as crude oil, natural gas, hydrocarbon combustion exhaust gases, sulfur polluted air and water. The surface-modified particles may, in general, be sized to allow separation of the particles from the process fluid by sedimentation, size-exclusion filtration or the like. | 12-10-2015 |
20150355090 | METHODS AND APPARATUS FOR DETECTING METALS IN LIQUIDS - Method for detecting metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and a UV absorption spectrum of the material before and after exposure to the liquid is examined to determine whether metals are present in the liquid. | 12-10-2015 |
20150355156 | METHODS AND APPARATUS FOR DETECTING METALS IN LIQUIDS - Method and apparatus for detecting metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and a UV absorption spectrum of the material before and after exposure to the liquid is examined to determine whether metals are present in the liquid. | 12-10-2015 |
20150360173 | SULFUR SCAVENGING MATERIALS FOR FILTERS AND COATINGS - Materials which react with (“scavenge”) sulfur compounds, such as hydrogen sulfide and mercaptans, are used to limit sulfur-induced corrosion. Filters and protective coatings including these materials, described broadly as polyhexahydrotriazines (PHT) and polyhemiaminals (PHA), are disclosed. Methods of using these materials to prevent corrosion are described. PHT and PHA materials have excellent thermal and mechanical properties for many applications as coatings and filtration media. Specifically, PHT and PHA materials react with sulfur compounds in such a manner as to incorporate sulfur atoms into the polymeric matrix, thus sequestering the sulfur atoms and allowing removal from fluids such as crude oil, natural gas, hydrocarbon combustion exhaust gases, sulfur polluted air and water. A coating PHT or PHA material on a component to be protected similarly reacts with sulfur compounds prior to sulfur being able to penetrate to the component. | 12-17-2015 |
20150360205 | METHODS AND APPARATUS FOR CONTROLLING METALS IN LIQUIDS - Method and apparatus for controlling metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and metal is adsorbed from the liquid onto the material. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde. | 12-17-2015 |
20150360206 | METHODS AND APPARATUS FOR CONTROLLING METALS IN LIQUIDS - Method for controlling metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and metal is adsorbed from the liquid onto the material. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde. | 12-17-2015 |
20150361197 | INITIATION OF CONTROLLED RADICAL POLYMERIZATION FROM LACTIDE MONOMER - A lactide-functionalized polymer is synthesized by polymerizing a monomer capable of undergoing radical polymerization (e.g., styrenic, vinylic, acrylic, etc.) using a brominated lactide initiator via atom transfer radical polymerization (ATRP). In some embodiments of the present invention, the brominated lactide initiator is 3-bromo-3,6-dimethyl-1,4-dioxane-2,5-dione prepared by reacting lactide with N-bromosuccinimide in the presence of benzoyl peroxide. | 12-17-2015 |
20150361220 | PREPARATION OF POLY(OCTATRIAZACANE) - A polyoctatriazacane molecule is disclosed that has a plurality of octatriazacane groups having the structure | 12-17-2015 |
20150361221 | PREPARATION OF POLY(OCTATRIAZACANE) - A polyoctatriazacane molecule is disclosed that has a plurality of octatriazacane groups having the structure | 12-17-2015 |
20150366202 | ANTIMICROBIAL PHT COATINGS - Methods for making antimicrobial coating materials are described. Antimicrobial materials and antimicrobial material precursors are formed from hexahydrotriazine and/or a hemiaminal material and a non-fouling material and adhesive material may be incorporated into the antimicrobial materials and antimicrobial material precursors. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde. Metal ions are also incorporated into the antimicrobial material precursors to form an antimicrobial material. | 12-24-2015 |
20150366972 | METHODS AND MATERIALS FOR THERAPEUTIC DELIVERY - Methods for preparing a supramolecular therapeutic agent delivery assembly are provided. A hydrophilic precursor, a hydrophibic precursor, and an aromatic diamine precursor may be combined to form an amphiphilic block co-polymer. The block co-polymer may undergo a cross-linking polymerization process and a therapeutic agent may be incorporated into the resulting supramolecular assembly. The supramolecular assembly may comprise HT, PHT, HA, and/or PHA materials. | 12-24-2015 |
20150376442 | SOLUBLE, PROCESSABLE POLYHEMIAMINALS AND POLYHEXAHYDROTRIAZINES - Polyhexahydrotriazine (PHT) and polyhemiaminal (PHA) materials incorporating divalent or trivalent bridging groups tend to form highly cross-linked polymers. While highly cross-linked polymers have certain advantageous with respect to stability and various physical characteristics, they are difficult to process once formed. PHA and PHT materials incorporating a plurality of trivalent PHA/PHT groups, a plurality of divalent bridging groups, and a plurality of monovalent end groups are disclosed. According to an embodiment, the cross-link density and molecular weight can be controlled by the inclusion of the end groups. Lower cross-link density and molecular weight give PHA and PHT materials improved characteristics with respect to film and fiber formation methods. A method of coating a component or substrate with a polymer is also disclosed. Embodiments of the method can be used to form either a PHA or PHT film on a substrate, such as microelectronic component. | 12-31-2015 |
20150376451 | SOLUBLE, PROCESSABLE POLYHEMIAMINALS AND POLYHEXAHYDROTRIAZINES - Polyhexahydrotriazine (PHT) and polyhemiaminal (PHA) materials incorporating divalent or trivalent bridging groups tend to form highly cross-linked polymers. While highly cross-linked polymers have certain advantageous with respect to stability and various physical characteristics, they are difficult to process once formed. PHA and PHT materials incorporating a plurality of trivalent PHA/PHT groups, a plurality of divalent bridging groups, and a plurality of monovalent end groups are disclosed. According to an embodiment, the cross-link density and molecular weight can be controlled by the inclusion of the end groups. Lower cross-link density and molecular weight give PHA and PHT materials improved characteristics with respect to film and fiber formation methods. A method of coating a component or substrate with a polymer is also disclosed. Embodiments of the method can be used to form either a PHA or PHT film on a substrate, such as microelectronic component. | 12-31-2015 |