Class / Patent application number | Description | Number of patent applications / Date published |
436085000 | SYNTHETIC OR NATURAL RESIN | 30 |
20080299665 | METHOD FOR DETERMINATION OF POLYMER CONCENTRATION IN WATER SYSTEMS - In one aspect, the invention is directed to a method for determining the concentration of anionic polymers or oligomers in industrial water comprising combining a buffer solution and a cationic dye solution, measuring absorbance of the buffer-dye admixture at selected wavelength(s) and determining the polymer or oligomer concentration from the previously determined absorbance values. In alternate embodiments of the invention, the buffer solution may be a multifunctional buffer solution and may be comprised of multiple buffers, masking agents, and/or stabilizing agents and combinations thereof. Other embodiments provide that multiple dyes may be employed. | 12-04-2008 |
20090075387 | Methods and Compositions for Biomarkers Associated with Change in Physical Performance - The present invention provides methods and compositions for detecting an improvement in the performance of a physical or athletic activity and/or in a cognitive activity in a subject upon administration to the subject of a performance enhancing material and/or upon contact of the subject with a performance enhancing material and/or upon implementation of a performance enhancing activity by the subject by detecting in the subject a change in a biomarker associated with physical or athletic activity and/or cognitive activity. | 03-19-2009 |
20090130768 | VAPOCHROMIC COORDINATION POLYMERS FOR USE IN ANALYTE DETECTION - This application relates to vaprochromic coordination polymers useful for analyte detection. The vapochromism may be observed by visible color changes, changes in luminescence, and/or spectroscopic changes in the infrared (IR) signature. One or more of the above chromatic changes may be relied upon to identify a specific analyte, such as a volatile organic compound or a gas. The chromatic changes may be reversible to allow for successive analysis of different analytes using the same polymer. The polymer has the general formula M | 05-21-2009 |
20090221082 | Microfluidic Evaporators And Determining Physical And/Or Chemical Properties Of Chemical Compounds Therewith - Microfluidic devices having a membrane allowing evaporation are useful for conducting a measurement or observation of compounds introduced therein. | 09-03-2009 |
20090325301 | MODULATION OF THE BINDING PROPERTIES OF NUCLEIC ACID BINDING PARTNERS - A method for specifically determining the presence of a target by contacting the target in the presence of other targets with a probe capable of binding to the target to form a complex of the target with the probe, where the contacting is performed in the presence of a compound enhancing the specificity of the binding or the complex formed is contacted with a compound enhancing the specificity of the binding. This method opens the way to a better discrimination between related nucleic acid sequences in diagnostic assays. | 12-31-2009 |
20100003762 | Permanent chemical marker and identification of information in polymers - The invention relates to a process for chemical marking and identification of information in polymers and additives, such as ageing additives, thermal stabilizer additives, light stabilizer additives, plasticizer additives or flame retardant additives and dyes and other high-value additives. The marking is effected by the use of defined atomic masses in the form of isotopes of suitable elements in chemical compounds which are incorporated into the polymer matrix and anchored during the production. The result is a chemical code which can be recalled over the entire product life without adversely affecting the properties of the polymer through high concentrations of extraneous substances. It is possible by this process to trace back the origin of a polymer, to detect possible mixtures with chemically identical products from other manufacturers, or to clarify at a later stage whether an additive has been added in the concentration specified. | 01-07-2010 |
20100022012 | NANOSENSORS - Electrical devices comprised of nanowires are described, along with methods of their manufacture and use. The nanowires can be nanotubes and nanowires. The surface of the nanowires may be selectively functionalized. Nanodetector devices are described. | 01-28-2010 |
20100041159 | HYDROPHOBIC COMPOUND CAPTURE-APPARATUS MADE FROM BIODEGRADABLE POLYMERS AND METHODS BASED THEREON - An apparatus and methods for concentrating or removing hydrophobic organic compounds (HOCs) are provided. A biodegradable polyhydroxyalkanoate (PHA) polymer is provided and the HOC (or a material containing a HOC) is contacted with the PHA. PHA polymers can be used to easily concentrate or remove microcontaminant levels as low as 0.01 ppm of hydrophobic organic compounds without using large solvent volumes. Methods for synthesizing the PHAs are also provided. Methods are further provided for degrading HOCs that have been sequestered from a HOC-contaminated material using isolated bacterial strains or microbes such as | 02-18-2010 |
20100041160 | ANALYSIS OF HIGH MOLECULAR WEIGHT MPEG ALCOHOL COMPOSITIONS - The invention is directed toward novel high molecular weight and high purity mPEG alcohol compositions as well as a process for obtaining said compositions by removing PEG diols from the mPEG alcohol after polymerization is complete. | 02-18-2010 |
20100233817 | Optical element, liquid crystal display device member with the optical element, liquid crystal display device with the liquid crystal display device member, method of producing the optical element and method of evaluating birefringence functional layer - The invention provides: an optical element that includes a birefringence functional layer constituted of a polymerizable liquid crystal material, in which the birefringence functional layer is formed directly or indirectly on a substrate, and in a post-process carried out thereafter, alignment and characteristics of the birefringence functional layer are not disturbed, with the result that a high quality birefringence control function can be exerted; a liquid crystal display device provided with the optical element; a method of evaluating a birefringence functional layer that is not disturbed in the alignment and physical properties by the post-process; and a method of producing the optical element. The optical element includes at least a light-transmitting substrate; and a birefringence functional layer made of a polymerizable liquid crystal material, wherein the birefringence functional layer is formed by aligning a polymerizable liquid crystal monomer having a polymerizable group at least at one terminal thereof directly or indirectly on a substrate followed by fixation, and a degree of reduction of residual double bonds in the birefringence functional layer before and after heat treatment at 250° C. for 1 hr is less than 0.25. | 09-16-2010 |
20100323452 | PROCESS FOR PURIFICATION OF WATER SOLUBLE POLYMERS - A process for purification of water soluble polymers is provided. A polymer of interest can be separated from a mixture of polymers, provided the polymer of interest differs from other polymers in the mixture in the number of reactive terminal groups. The process involves derivatizing polymers at the reactive terminal groups with a derivatizing molecule, bearing either (i) two or three cationic or anionic ionizable groups, and a group capable of covalent bonding to the reactive terminal groups or (ii) three or four ionizable groups, at least one of which is capable of covalent bonding to the reactive terminal groups; followed by ion exchange. The process allows removal of PEG from MPEG, and can be used for polymers having an average size greater than 9,000 Da Derivatization may be reversible in order to allow re-use of recovered contaminant polymers. | 12-23-2010 |
20100330682 | DIACETYLENIC MATERIALS FOR SENSING APPLICATIONS - Diacetylenic materials for the colorimetric detection of an analyte or exposure to certain environmental factors are disclosed as well as the polymerization reaction products of these diacetylenic compounds. | 12-30-2010 |
20110003391 | SENSOR FILMS, METHODS FOR MAKING AND METHODS FOR MONITORING WATER-SOLUBLE POLYMER CONCENTRATIONS - A multiple-component sensor film includes a carrier polymer matrix and film reactants dispersed within the carrier polymer matrix. The carrier polymer matrix includes a carrier polymer, which includes hydroxypropyl cellulose polymer and the film reactants include an indicator and a reactant from the group of a buffer, a stabilizer, a masking agent, a solubilizer and an internal reference dye. Methods for making the multiple-component sensor film and methods for monitoring the concentration of water soluble polymers in aqueous media are also provided. | 01-06-2011 |
20110250696 | Process for High Concentration Cation Exchange Metathesis - Provided is a method for high concentration cation exchange metathesis of divalent ions such as calcium with univalent ions such as sodium or potassium. Due to the difference between ionic valences between the exchanged ions, the provided process behavior is strongly dependent upon the selection of resin properties and to total solution normality. A combination of resin properties and solution normality is provided to achieve the cation exchange. | 10-13-2011 |
20110306142 | IMMOBILIZATION OF DROPLETS OF LIQUID CRYSTALS ON SURFACES - Devices and methods for immobilizing micrometer sized liquid domains onto a chemically functionalized substrate surface are disclosed. A multifunctional polymer is adsorbed at the surface interface of the liquid microdomains, and the liquid microdomains are immobilized by covalent bonding or non-covalent forces such as electrostatic attraction between the adsorbed multifunctional polymer and the functionalized substrate surface. | 12-15-2011 |
20110312098 | SYSTEM AND METHOD OF ASSESSING NANOTUBE PURITY - The present invention is directed to methods for assessing the purity of carbon nanotube (CNT) compositions, specifically, a method for assessing the presence of contaminants in a CNT composition using polyaryl ethynyl (PAE) conjugate polymer as an indicator material. Additionally, compositions and kits comprising a polyaryl ethynyl (PAE) conjugate polymer are also provided. | 12-22-2011 |
20120270328 | Methods of Cationic Polymer Detection - The present invention concerns a method of detecting cationic polymers comprising: obtaining a target water sample containing a cationic polymer; adding a polymer dispersant solution and a phosphate solution to the target water sample, the polymer dispersant solution is comprised of a polymer dispersant with calcium and magnesium hardness and the phosphate solution is comprised of a phosphate; standing the target water sample; and measuring the turbidity of the target water sample; comparing the turbidity of said target water sample with a calibration curve of the turbidity of samples containing known concentrations of cationic polymers to determine the concentration of cationic polymers in said target water sample. | 10-25-2012 |
20130040394 | PROCESS FOR HIGH CONCENTRATION CATION EXCHANGE METATHESIS - Provided is a method for high concentration cation exchange metathesis of divalent ions such as calcium with univalent ions such as sodium or potassium. Due to the difference between ionic valences between the exchanged ions, the provided process behavior is strongly dependent upon the selection of resin properties and to total solution normality. A combination of resin properties and solution normality is provided to achieve the cation exchange. | 02-14-2013 |
20130122597 | SIMULTANEOUS DETERMINATION OF MULTIPLE ANALYTES IN INDUSTRIAL WATER SYSTEM - A multi-purpose reagent composition is used for simultaneously determining concentrations of at least two analytes in a water sample. The two analytes are selected from the group consisting of free chlorine, pH, anionic polymer, and phosphates. In one embodiment, the multi-purpose reagent composition is for simultaneously determining the concentration of free chlorine and pH and comprises a free chlorine sensitive dye and pH indicator. In another embodiment, the reagent composition is for simultaneously determining of free chlorine and anionic polymer and includes a free chlorine sensitive dye, a pH buffer, cationic dye, and organic co-solvent. Thus, the pairs of free chlorine and pH or free chlorine and anionic polymer are determined using a single reagent composition. The reagent composition can also be the main reagent for one analyte analysis when it is used alone and also function as an ancillary reagent when it is combined with a second reagent composition for the determination of another analyte. | 05-16-2013 |
20130260469 | DIFFERENTIAL ULTRASONIC WAVEGUIDE CURE MONITORING PROBE - The present invention is seen to provide a new methodology, testing system designs and concept to enable in situ real time monitoring of the cure process. Apparatus, system, and method for the non-destructive, in situ monitoring of the time dependent curing of advanced materials using one or more differential ultrasonic waveguide cure monitoring probes. A differential ultrasonic waveguide cure monitoring probe in direct contact with the material to be cured and providing in situ monitoring of the cure process to enable assessment of the degree of cure or cure level in a non-cure related signal variances (e.g., temperature) independent calibrated response manner. A differential ultrasonic waveguide cure monitoring probe including a transducer coupled to a waveguide and incorporating correction and calibration methodology to accurately and reproducibly monitor the cure process and enable assessment of cure level via ultrasonic reflection measurements. The amplitude of the corrected interface response signal reflected from the probe-resin interface indicating changes in the modulus of the material during the cure. | 10-03-2013 |
20140099723 | DETERIORATION ANALYSIS METHOD AND CHEMICAL STATE MEASUREMENT METHOD - The present invention provides a deterioration analysis method capable of analyzing in detail deterioration of a polymer material, and in particular deterioration in the surface condition of a polymer material with low conductivity. The present invention relates to a deterioration analysis method including irradiating a polymer material with a metal coating having a thickness of 100 Å or less formed thereon, with high intensity X-rays, and measuring X-ray absorption while varying the energy of the X-rays, to analyze deterioration of the polymer. | 04-10-2014 |
20140349407 | DETERIORATION ANALYZING METHOD - The present invention provides a method of deterioration analysis that enables detailed analysis of the deterioration, especially of the surface, of a polymer material containing at least two diene polymers. The present invention relates to a method of deterioration analysis including: irradiating a polymer material containing at least two diene polymers with high intensity x-rays; and measuring x-ray absorption while varying the energy of the x-rays, to analyze the deterioration of each diene polymer. | 11-27-2014 |
20150017731 | TEST APPARATUS AND METHOD OF ACCELERATED PHOTO-DEGRADATION USING PLASMA LIGHT SOURCE - Disclosed is a test apparatus of accelerated photo-degradation measuring a degradation caused by photo-degradation in a material or a product by light containing UV light and visible light that simulate the solar light-inducing degradation. The apparatus includes a light irradiating unit configured to irradiate light using at least one electrodeless plasma lamp; a light condensing unit configured to collect light emitted from the light irradiating unit and irradiate the light uniformly into the surface of the specimen for the material or the product; and a specimen holder configured to fix the specimen, and the specimen holder being fixed at a predetermined position or rotated. Further, the at least one electrodeless plasma lamp generates light having a light power spectrum similar to a solar light in a region of UV light and short-wavelength visible light corresponding to a range of about 300-500 nm. | 01-15-2015 |
20150031138 | EMISSIVE COMPOSITIONS WITH INTERNAL STANDARD AND RELATED TECHNIQUES - The present invention provides materials, devices, and methods related to determination of an analyte. In some embodiments, an analyte may be determined by monitoring, for example, a change in an optical signal of a luminescent material (e.g., particle) upon exposure to an analyte. The present invention may be particularly advantageous in that some embodiments may comprise an emissive species useful as an internal reference standard. Methods of the invention may also be useful in the quantitative determination of an analyte. In some cases, the present invention may allow for selective determination of an analyte. | 01-29-2015 |
20150369789 | CLEANABILITY ASSESSMENT OF SUBLIMATE FROM LITHOGRAPHY MATERIALS - A method of testing the cleanability of polymerized sublimate outgassed from a lithography material during a thermal heating process including; placing a wafer on a wafer hotplate inside a chamber with the wafer being covered by a lithography material; placing a target, having a starting composition, above the wafer in the chamber; heating the wafer using the wafer hotplate in an attempt to outgas a sublimate, where the sublimate condenses on the target; forming a polymerized sublimate on the target; and applying organic solvents to the target to determine the cleanability of the polymerized sublimate. | 12-24-2015 |
20160041143 | BENZOTHIAZOL-2-YLAZO-PHENYL COMPOUND AS DYE, COMPOSITIONS INCLUDING THE DYE, AND METHOD OF DETERMINING DEGREE OF CURE OF SUCH COMPOSITIONS - A compound represented by formula: is disclosed. R is hydrogen or alkyl; X is alkylene; Y is a bond, ether, thioether, amine, amide, ester, thioester, carbonate, thiocarbonate, carbamate, thiocarbamate, urea, thiourea, alkylene, arylalkylene, alkylarylene, or arylene, wherein alkylene, arylalkylene, alkylarylene, and arylene are optionally at least one of interrupted or terminated by at least one of an ether, thioether, amine, amide, ester, thioester, carbonate, thiocarbonate, carbamate, thiocarbamate, urea, or thiourea; and Z is an acrylate, a methacrylate, an acrylamide, a methacrylamide, a styrenyl, or a terminal alkenylene having at least three carbon atoms. A composition including the compound, and a method of determining the degree of cure of a curable polymeric resin are also disclosed. | 02-11-2016 |
20160084809 | SIMULTANEOUS DETERMINATION OF MULTIPLE ANALYTES IN INDUSTRIAL WATER SYSTEM - A multi-purpose reagent composition is used for simultaneously determining concentrations of at least two analytes in a water sample. The two analytes are selected from the group consisting of free chlorine, pH, anionic polymer, and phosphates. In one embodiment, the multi-purpose reagent composition is for simultaneously determining the concentration of free chlorine and pH and comprises a free chlorine sensitive dye and pH indicator. In another embodiment, the reagent composition is for simultaneously determining of free chlorine and anionic polymer and includes a free chlorine sensitive dye, a pH buffer, cationic dye, and organic co- solvent. Thus, the pairs of free chlorine and pH or free chlorine and anionic polymer are determined using a single reagent composition. The reagent composition can also be the main reagent for one analyte analysis when it is used alone and also function as an ancillary reagent when it is combined with a second reagent composition for the determination of another analyte. | 03-24-2016 |
20160091469 | METHOD FOR THE DETERMINATION OF FILM-FORMING AMINES - A method for the determination of film-forming amines in liquids by adding a reacting agent with the amine to form a coloured complex to be measured by photometric method. For the reaction, the pH of the liquid mixture is lowered by using hydrochloric acid. | 03-31-2016 |
20160137601 | METHOD FOR PROVIDING STABLE ISOINDOLE DERIVATIVES - Method for producing an isoindole derivative, the isoindole derivative obtainable by the methods, a methods for stabilizing an isoindole derivative, and methods for detection and/or quantification of macromolecules. | 05-19-2016 |
20160202233 | RECYCLATE VERIFICATION | 07-14-2016 |