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492 results about "Chemical change" patented technology
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Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. Some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. Understanding chemical changes is a major part of the science of chemistry.
Sliver type autonomous biosensors
InactiveUS20040180391A1Bioreactor/fermenter combinationsBiological substance pretreatmentsIn vivoElectrochemistry
In vivo or in vitro monitoring of chemical and biochemical species (e.g., pH, or glucose levels) in the interstitial fluid of patients or in a sample of a fluid to be analyzed is provided by a probe (10, 70, 210, 270). For in vivo monitoring, the probe is readily inserted by a minimally invasive method. Optical or electrochemical sensing methods are employed to detect a physical or chemical change, such as pH, color, electrical potential, electric current, or the like, which is indicative of the concentration of the species or chemical property to be detected. Visual observation by the patient may be sufficient to monitor certain biochemicals (e.g., glucose) with this approach. A CAP membrane allows high enzyme loadings, and thus enables use of microminiature probes, and / or diagnosis of low levels of the analyte(s), with sufficient signal-to-noise ratio and low background current.
Owner:CASE WESTERN RESERVE UNIV
Noninvasive measurement of chemical substances
InactiveUS7041063B2High densityEarly diagnosisOrganic active ingredientsHeart defibrillatorsConjunctivaInfrared
Utilization of a contact device placed on the eye in order to detect physical and chemical parameters of the body as well as the non-invasive delivery of compounds according to these physical and chemical parameters, with signals being transmitted continuously as electromagnetic waves, radio waves, infrared and the like. One of the parameters to be detected includes non-invasive blood analysis utilizing chemical changes and chemical products that are found in the conjunctiva and in the tear film. A transensor mounted in the contact device laying on the cornea or the surface of the eye is capable of evaluating and measuring physical and chemical parameters in the eye including non-invasive blood analysis. The system utilizes eye lid motion and / or closure of the eye lid to activate a microminiature radio frequency sensitive transensor mounted in the contact device. The signal can be communicated by wires or radio telemetered to an externally placed receiver. The signal can then be processed, analyzed and stored. Several parameters can be detected including a complete non-invasive analysis of blood components, measurement of systemic and ocular blood flow, measurement of heart rate and respiratory rate, tracking operations, detection of ovulation, detection of radiation and drug effects, diagnosis of ocular and systemic disorders and the like.
Owner:GEELUX HLDG LTD
Contact lens for collecting tears and detecting analytes for determining health status, ovulation detection, and diabetes screening
InactiveUS20070016074A1Increase oxygenationIncreased riskOrganic active ingredientsHeart defibrillatorsConfocalChemical products
Owner:GEELUX HLDG LTD
Physical condition or environmental threat detection appliance system
InactiveUS7188767B2Converting sensor ouput using wave/particle radiationMeasurement arrangements for variableEngineeringRadio frequency
Owner:PRECISION DYNAMICS CORPORATION
Injection syringe including device for preparation of injection
An injection syringe including a device for preparation of an injection in situ, useful to the injection which is liable to suffer chemical changes if left for a long time in the state of solution or dispersion ready to inject. The injection syringe is portable by a patient who may prepare a necessary injection in situ with the use of a device included in the syringe which will automatically perform an injection with a prescribed dosage. The injection syringe includes a device for preparation of an injection, whereby mechanical impacts affecting the medicine and consequently, chemical changes with a medicine would be minimized during the step of dissolving the medicine. The syringe as noted is especially useful for preparation of injection and injection of human growth hormones, interferon and various polypeptides which are of an environmentally sensitive nature and liable to suffer chemical changes if left for a long time in the state of solution or dispersion.
Owner:JCR PHARMA
Method and apparatus for mixing fluids
The invention relates in general to methods of controlled mixing one fluid with another. In particular it relates to a distributed direct fluid contactor including arrays of streamlined perforated tubes distributed across a flow to efficiently contact and mix one or more fluids flowing through one or more tubes with a second fluid flowing across those tubes. These distributed contactors thereby mix the fluids in a fairly uniform fashion causing a prescribed uniformity or variation in the ratio of the first to second fluid across the space. This thereby to generally creates and controls the physical and / or chemical changes in those fluids, including evaporation, condensation, forming powders and conducting chemical reactions including combustion.
Owner:VAST POWER PORTFOLIO
Modified thermal processing of heavy hydrocarbon feedstocks
InactiveUS7572362B2Quick upgradeReducing H2S contentThermal non-catalytic crackingTreatment with plural serial cracking stages onlyLiquid productParticulates
The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. It utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents. This invention particularly relates to reducing sulfur emissions during the combustion of byproduct coke (or coke and gas), to reducing the total acid number (TAN) of the liquid product, and to reducing the hydrogen sulfide content of one, or more than one component of the product stream. The method comprises introducing a particulate heat carrier into an up-flow reactor, introducing the feedstock at a location above the entry of the particulate heat carrier, allowing the heavy hydrocarbon feedstock to interact with the heat carrier for a short time, separating the vapors of the product stream from the particulate heat carrier and liquid and byproduct solid matter, regenerating the particulate heat carrier in the presence of the calcium compound, and collecting a gaseous and liquid product from the product stream.
Owner:IVANHOE HTL GASOLINEEUM
Patterning devices using fluorinated compounds
A method for producing a spatially patterned structure includes forming a layer of a material on at least a portion of a substructure of the spatially patterned structure, forming a barrier layer of a fluorinated material on the layer of material to provide an intermediate structure, and exposing the intermediate structure to at least one of a second material or radiation to cause at least one of a chemical change or a structural change to at least a portion of the intermediate structure. The barrier layer substantially protects the layer of the material from chemical and structural changes during the exposing. Substructures are produced according to this method.
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE
Structural Expandable Materials
ActiveUS20160137912A1Control expansionReduce the amount of waterFluid removalFlushingMaterials scienceChemical change
A composite particle that incorporates a material and is designed to undergo a reaction and / or mechanical or chemical change with the environment to increase in volume. The composite particle can be combined with a constraining matrix to create an expandable particle upon reaction. These particles can be used in stimulating wells, including oil and gas reservoirs.
Owner:POWDERMET
Physical condition or environmental threat detection appliance system
InactiveUS20040178913A1Converting sensor ouput using wave/particle radiationMeasurement arrangements for variableEngineeringRadio frequency
A system includes one or more devices for providing information about a physical condition or environmental hazard. Each device includes a sensor physically associated with the user for detecting a predetermined environmental hazard and / or a physical condition of the user. The device is usually in the form of a wristband patch or tag attached to the user. The one or more sensors are adapted to detect predetermined chemicals, biological organisms, radiation or user blood pressure, heart rate, temperature, oxygen level, glucose level, skin condition, or biological and chemical changes of the user. An electronic circuit communicates with the sensor and includes an alarm for notifying the user or a third party of elevated environmental hazards or abnormal physical conditions of the user. Typically, the electronic circuit includes a transmitter, such as a radio frequency transmitter, for conveying information obtained from the sensor and electronic circuitry to a third party.
Owner:PRECISION DYNAMICS CORPORATION
Method for the preparation of an immobilized protein ultrathin film reactor and a method for a chemical reaction by using an immobilized protein ultrathin film reactor
InactiveUS6107084AImprove responseEasy to spreadBioreactor/fermenter combinationsBiological substance pretreatmentsChemical reactionMolecular level
A method for the preparation of an immobilized protein ultrathin film reactor by immersing a solid support alternately into an aqueous solution of protein, and into an aqueous solution of polyion charged oppositely to said protein and preparing a structurally controlled ultrathin film of mono- or multi- protein layers on a said solid support with precision at molecular level. And a method for chemical reaction of a substrate by preparing an immobilized protein ultrathin film reactor composed of multiple layers of protein on a solid support by above mentioned method, and initiating a chemical change of the substrate molecules using obtained immobilized protein ultrathin film reactor.
Owner:JAPAN SCI & TECH CORP
Photoelectromagnetism integrated waste water advanced oxidization method and device thereof
ActiveCN101033105AWide applicabilityGood processing effectWater/sewage treatment by irradiationWater contaminantsUltraviolet lightsWeak current
This invention relates to a photoelectromagnetic integrated advanced oxidation method and its device for waste water, which first of all acidizes the waste water, then strongly magnetizes it to generate energy of physical change and chemical change then enters into a photo-catalyzing box to be oxidated mostly to CO2 and water under the actioin of photo-catalyst, ultraviolet light, ozone and oxydol, in which, molecular chains of some hard-degradated substances are broken, then the waste water is micro-electrolysed to adsorb and recover the hard degraded substances under the action of extra low voltage, weak current and air, ozone and oxydol to get rid of COD, color degree, deodorizatin and disinfectant finall to filter it by diatomite and filter out suspending substances to reach the standard or recover it.
Owner:深圳市华旭半导体科技有限公司 +1
Modified thermal processing of heavy hydrocarbon feedstocks
InactiveUS7572365B2Quick upgradeReduce sulfur emissionsThermal non-catalytic crackingTreatment with plural serial cracking stages onlyLiquid productParticulates
The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. It utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents. This invention particularly relates to reducing sulfur emissions during the combustion of byproduct coke (or coke and gas) and to reducing the total acid number (TAN) of the liquid product. The method comprises introducing a particulate heat carrier into an up-flow reactor, introducing the feedstock at a location above the entry of the particulate heat carrier, allowing the heavy hydrocarbon feedstock to interact with the heat carrier for a short time, separating the vapors of the product stream from the particulate heat carrier and liquid and byproduct solid matter, regenerating the particulate heat carrier in the presence of the calcium compound, and collecting a gaseous and liquid product from the product stream.
Owner:IVANHOE HTL GASOLINEEUM
Laminate, and element comprising substrate manufactured using same
ActiveUS20150210048A1Facilitate device fabricationEliminate needFinal product manufactureSolid-state devicesLight irradiationThermal expansion
The present invention relates to a laminate and a device fabricated using the laminate. The laminate includes a first polyimide resin layer between a carrier substrate and a second polyimide resin layer, wherein the first polyimide resin layer has a coefficient of thermal expansion (CTE) equal to or lower than the CTE of the second polyimide-based resin layer at a temperature of 100 to 200° C., and the adhesive strength of the first resin layer to the second resin layer decreases when a physical stimulus causing no chemical changes in the first resin layer is applied to the laminate. According to the present invention, the flexible substrate can be easily separated from the carrier substrate without the need for further processing such as laser or light irradiation. Therefore, the use of the laminate facilitates the fabrication of the device having the flexible substrate. The device may be, for example, a flexible display device. In addition, the device can be prevented from deterioration of reliability and occurrence of defects caused by laser or light irradiation. This ensures improved characteristics and high reliability of the device.
Owner:LG CHEM LTD
Feedback control scheme for optimizing dewatering processes
InactiveUS20090255876A1Sludge treatment by de-watering/drying/thickeningWater treatment parameter controlWater clarityTurbidity
A method and apparatus for dewatering of effluents through the use of automated optimization using feedback control. The method and apparatus for feedback control optimizes dewatering processes for any water cleansing process that uses retention and / or flocculation aids (e.g., polymers) to impact endpoint water clarity. Disclosed implementations include processing using dissolved air flotation (DAF) and sludge cake formation. The methodology includes real-time monitoring of turbidity and incremental control of polymer to manage changes to turbidity / suspended solids due to operating parameters such as temperature, chemical variations, and mechanical influences.
Owner:DUNBAR JAMES M
Optical sensor for determining the concentration of an analyte
InactiveUS20110105867A1Diagnostics using lightScattering properties measurementsAnalyteConcentrations glucose
A method and apparatus for non-invasively determining a concentration of glucose in a subject using optical excitation and detection is provided. The method includes emitting an exciter beam (B1) to irradiate a portion (130) of tissue of the subject, causing physical and chemical changes in the surface, and causing an initial CPU back scattering (D1) of light. The method further includes periodically emitting a probe beam (B2) which irradiates the portion of tissue and causes periodic back scatterings (D2) of light. The initial and periodic back scatterings are detected and converted into electrical signals of at least the amplitude, frequency or decay time of the physical and chemical changes, the back scatterings being modulated by the physical and chemical changes. By differentiating over time at least one of the amplitude, frequency or decay time of the physical and chemical changes, the concentration of glucose may be determined.
Owner:BIOSENSOR INC
Nanoparticle array and method for producing nanoparticle array and magnetic recording medium
InactiveUS20050079551A1Efficiently formedEfficient preparationBioreactor/fermenter combinationsNanomagnetismOrganic layerNanoparticles dispersion
An organic layer capable of forming surface areas having an adsorption property different from that of a periphery due to the chemical change of a surface functional group is formed on a board. The surface of the organic layer is patterned and oxidized by a scanning probe microscope to form an array pattern in which small sections for adsorbing nanoparticles are arranged. Then, nanoparticle dispersed solution is applied to the organic layer having the array pattern or the organic layer is dipped in the nanoparticle dispersed solution to form a particle layer on the organic layer. At this time, the nanoparticles in the nanoparticle dispersed solution are respectively fixed only onto the small sections. Therefore, a nanoparticle array on which groups of nanoparticles are arranged in an array can be obtained. Thus, the nanoparticle array on which the groups of the nanoscale particles are arranged on the board is efficiently formed
Owner:SONY CORP
Unsubstituted and polymeric leuco colorants for coloring consumer products
ActiveCN101600765AAnalysis using chemical indicatorsOrganic chemistryColor changesBiological activation
This invention relates to unsubstituted and polymeric leuco colorants for use as consumer product additives to indicate a product function by color change, to make attractive or distinctive visual effects, or to provide latent or delayed color generation. The colorants may be present in a stable, colorless state and may be transformed to an intense colored state upon exposure to certain physical or chemical changes. Alternatively, the colorants may be transformed from one color to another color upon exposure to certain physical or chemical changes. The colored form of the unsubstituted or polymeric leuco colorant may be transient, since the colorant can revert back to its colorless form or its original color after the physical or chemical activation has been removed or changed. Polymeric leuco colorants are typically comprised of at least two components: at least one leuco chromophore component and at least one polymeric component.
Owner:MILLIKEN & CO
Stimuli responsive liquid crystal-polymer composite fibers
A process for making a stimuli responsive liquid crystal-polymer composite fiber comprising mixing a liquid crystal, a polymer, and a solvent; processing the mixture in the presence of an electric potential across a collection distance; phase separating a polymer and said liquid crystal; and encapsulating said liquid crystal within said polymer. The fiber generally comprises a liquid crystal core and a polymer shell wherein the liquid crystal is responsive to chemical changes, thermal and mechanical effects, as well as electrical and magnetic fields. A liquid crystal containing fiber can be utilized as optical fibers, in textiles, and in optoelectronic devices.
Owner:KENT STATE UNIV
Chromogenically tunable photonic crystals
Owner:UNIVERSITE DE MONCTON
Chemical change agent
InactiveUS20060117651A1Promote combustionEliminate needNitrogen compoundsSolid fuel pretreatmentWaxCombustion
The present invention relates to an improved chemical change reagent which is used as an additive to coal to enhance the complete combustion of the coal after turning it into a synthetic fuel. The composition is a chemical change agent in that it converts the coal / composition mix into a different material which, when burned, results in lower NOx emissions. The composition includes a wax, a base for ph adjustment and water and is mixed with the coal prior to combustion.
Owner:STATE LINE HLDG
Silicon rubber and preparation method thereof
The invention discloses a silicon rubber and a preparation method thereof, belonging to the technical field of rubber materials. The silicon rubber is prepared from rubber and a reinforced material in a kneading machine through physical change and chemical change by mixing, wherein the reinforced material is white carbon black, the white carbon black is used as the reinforced material so that the strength of vulcanizing silicon rubber can be increased, the rubber is methyl phenyl vinyl silicone rubber so that the cold resistance can be effectively improved; hydroxyl silicone oil is a structure control agent, zinc stearate is a release agent, and 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane without toxicity and pungent smell and with good high-temperature vulcanization effect is selected as a peroxide vulcanization agent. The silicon rubber provided by the invention has low-temperature resistance and high dielectric property, can meet the special requirement of some products on the market, is remarkably unchanged in hardness, tear strength and elongation at break, and thus the application range of the silicon rubber is enlarged.
Owner:JIANGSU TIANCHEN NEW MATERIALS
Method for producing spatially patterned structures using fluorinated compounds
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE
New method for forming manual well wall in oil and gas well by water-absorbing resin
InactiveCN102134979APrevent leakageEasy to transformDrilling compositionSealing/packingFresh water organismVolumetric Mass Density
The invention relates to a new method for forming manual well walls in an oil and gas wells by water-absorbing resin. In the method, the water-absorbing resin is mixed with freshwater or saline to form a well completion fluid or a workover fluid; the water-absorbing resin is starch-type water-absorbing resin or cellulose-type water-absorbing resin or synthetic water-absorbing resin and comprises the following components by weight percentage: 1 to 2% of water-absorbing resin, 0.2 to 0.5% of water-absorbing initiator, 0.2 to 0.5% of colloid protective agent, and the remaining quantity of water or monovalent saline. The density of the water-absorbing resin well-completion fluid or the workover fluid can be adjusted by adding monovalent salt NaCl or KCl; the solution apparent viscosity can be controlled by adjusting the concentration of the water-absorbing resin; and the dosage of the well completion fluid or the workover fluid can be designed according to the volume of a shaft. In the method, the physical and the chemical changes can occur under the high temperature to form a manual well wall, namely a gelatine temporary plugging layer; therefore, the bearing capability of the high-and low-pressure stratum can be effectively improved; the leakage of the well completion fluid or the workover fluid can be prevented at the producing layer, the operation safety and the capacity of the oil and gas well can be ensured, the construction technology is simple, and the cost is relatively low.
Owner:CHINA NAT OFFSHORE OIL CORP +3
Superparamagnetic nanoparticle encapsulated with stimuli responsive polymer for drug delivery
InactiveUS20100168044A1Many possibilityReduce interactionPowder deliveryBiocideStimuli responsiveMedicine
The current invention is a novel superparamagnetic site-targeting nanoparticle comprising superparamagnetic nanoparticles encapsulated with a smart polymer. The superparamagnetic site-targeting nanoparticle comprises a functionalized superparamagnetic core that is conjugated with a therapeutic agent and then encapsulated with a smart polymer. The smart polymer can be any polymer that exhibits a reversible conformational or physio-chemical change in response to an external stimulus or stimuli.
Owner:MISRA DEVESH KUMAR
Compositions, methods and devices for local drug delivery
ActiveUS20140271897A1Reduce scar tissue formationEasily visualizedBiocidePeptide/protein ingredientsMicroparticleDrug encapsulation
This invention provide novel compositions, methods and devices for sustained drug delivery. The microencapsulated sustained drug delivery compositions are deposited using oscillating needle apparatus oscillating at 10-12000 minutes per minutes. The injected compositions may undergo variety of physical chemical changes upon deposition. The physical and chemical changes enables improved drug encapsulation and sustained drug release. Also described are new methods to form polymer microparticles or polymer films / implants in situ inside the tissue. The invention also describes colored biodegradable microparticle based compositions wherein the compositions comprise drug encapsulated microparticles and coloring agent encapsulated microparticles mixed in any proportion. Medical applications of the compositions and methods described in this invention are also described.
Owner:PATHAK HLDG
Method for reducing wear of mechanically interacting surfaces
InactiveUS7134939B2Reduce friction and wearProlong lifeLapping machinesBearing componentsEngineeringLubricant
The invention is about reducing friction and wear and risk of seizure of mechanically interacting lubricated surfaces. A working surface of a mechanical piece engaged with another piece in relative sliding movement is processed for reduced friction. Two distinctly separate zones are allocated on the surface, one attractive to a lubricant used and the other repelling to the lubricant. The repellency may be conveyed to the repelling zone by either a mechanical modifying process or by a chemical change. In a preferred embodiment of the invention the repellency is obtained by lapping. The lubricant attractive layers are associated in a preferred embodiment of the invention with an assembly of recessed microstructures.
Owner:FRICSO
Fluid storage and purification method and system
InactiveUS20060226074A1Power operated devicesUsing liquid separation agentPurification methodsIonic liquid
A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. The vessel contains an ionic liquid therein. The fluid is contacted with the ionic liquid for take-up of the fluid by the ionic liquid. There is substantially no chemical change in the ionic liquid and the fluid. The fluid is released from the ionic liquid and dispensed from the vessel.
Owner:MATHESON TRI GAS
Method for rapid prototyping by using plane light as sources
ActiveUS7079915B2Additive manufacturing apparatus3D object support structuresLiquid-crystal displayRapid prototyping
A method for rapid prototyping by using plane light as sources treats the raw material by two stages. The first stage includes a step of spreading raw material onto a defined zone by nozzles and rolling the material to have a flat surface and a step of illuminating the raw materials by plane light and electronic beams to cause a first time of physical or chemical changes. The second stage includes a step of using more powerful plane light source with cooperation with portable Digital Micromirror Device (DMD) or Liquid Crystal Display (LCD) to scan the selected zones of the material to cause a second time of physical or chemical changes, and a step of stacking the 2-D images so as to obtain a solid work piece.
Owner:NAT CHENG KUNG UNIV
Novel method for storing and brewing white spirit
ActiveCN101792709AFully agedAssociation stabilityAlcoholic beverage preparationAlcohol contentDistillation
The invention relates to a novel method for storing and brewing white spirit and aims to solve the defects that currently the storage of the white spirit at home and abroad adopts a mode that after being stored for a certain period, the white spirit of the original grade is subjected to design, alcohol content reduction, combination, seasoning, adsorption, filter and then is subjected to filling production; in the natural storage condition, the stimulating components and hazardous components in the white spirit cannot sufficiently react and volatilize; the stability of the association of the white spirit body is not good; the vinosity of the produced white spirit is lack of soft taste and clean aftertaste; and the quality of the produced white spirit is not stable. In the novel method for storing and brewing the white spirit of the invention, the double cellaring, namely the secondary ageing process is adopted, and according to the substrate concentration, the non-homogeneous substance motion characteristics and the permutation and combination principle, primitive base wine generated by carrying out solid-state fermentation and distillation in a mud cellar is subjected to twice physical and chemical changes, ageing, alcoholizing and bouquet spreading, and processing in a conventional wine storage container under a specific environment to generate the natural, hygiene and health white spirit.
Owner:重庆诗仙太白酒业有限公司
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