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31results about How to "Less discoloration" patented technology
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LED leadframe or LED substrate, semiconductor device, and method for manufacturing LED leadframe or LED substrate
ActiveUS20120313131A1Less discolorationImprove featuresSemiconductor/solid-state device detailsSolid-state devicesAlloySemiconductor
An LED leadframe or LED substrate includes a main body portion having a mounting surface for mounting an LED element thereover. A reflection metal layer serving as a reflection layer for reflecting light from the LED element is disposed over the mounting surface of the main body portion. The reflection metal layer comprises an alloy of platinum and silver or an alloy of gold and silver. The reflection metal layer efficiently reflects light emitted from the LED element and suppresses corrosion due to the presence of a gas, thereby capable of maintaining reflection characteristics of light from the LED element.
Owner:DAI NIPPON PRINTING CO LTD
Curable composition
InactiveUS20090182091A1Less discolorationGood adhesivenessOther chemical processesEster polymer adhesivesSilylenePlasticizer
The present invention has its object to provide a curable composition which comprises a guanidine compound as a non-organotin type catalyst, is less discolored, has good surface curability, depth curability, strength rise and adhesiveness, and can retain the curability even after storage; the above object can be achieved by a curable composition which comprises: (A) an organic polymer containing a silyl group capable of crosslinking under siloxane bond formation, the silyl group being a group represented by the general formula (1): —SiX3 (1) (wherein X represents a hydroxyl group or a hydrolyzable group and the three X groups may be mutually the same or different), (B) a guanidine compound (B-1) as a silanol condensation catalyst, and (C) a plasticizer, wherein the content of the component (B-1) is not lower than 0.1 part by weight but lower than 8 parts by weight per 100 parts by weight of the component (A), and a non-phthalate ester plasticizer accounts for 80 to 100% by weight of the (C) component plasticizer.
Owner:KANEKA CORP
Toner for developing latent electrostatic image, method for producing the same and apparatus for producing the same, and developer, toner container, process cartridge, image forming method and image forming apparatus
InactiveUS20090170018A1Improve transfer performanceExcellent performance cleaningDevelopersSolid massImage formation
There is provided a toner for developing a latent electrostatic image, obtained by a method containing: ejecting a toner composition fluid from an ejection hole so as to make the toner composition fluid into droplets; and solidifying the droplets in an atomizing space so as to form solid particles, wherein the toner composition fluid contains at least a colorant formed by reacting a polymer containing 10 mol % or more of a monomer unit having a sulfonic acid group or a salt thereof, or a monomer unit having a sulfuric acid group or a salt thereof as a constitutional unit, and a basic dye.
Owner:RICOH KK
Phosphite compositions
ActiveUS20140045981A1Good melt flow stabilityLess coloringChemical inhibitorsPhosphoric Acid EstersPolymer science
Solid phosphite compositions comprising tris(4-t-alkylphenyl)phosphites and selected hydroxyalkyl amines exhibit surprising performance compared with other phosphite stabilizers in the stabilization of polymers, such as polyolefins and the like, particularly in the prevention of color formation during high temperature processing or when exposed to certain gasses during storage, e.g., “gas fading”.
Owner:SI GROUP INC
Liquid crystal panel and liquid crystal display
ActiveUS20070002233A1Less discolorationReduce the amount requiredNon-linear opticsOptical elementsEngineeringPolarizer
A liquid crystal panel of the present invention comprises at least: a liquid crystal cell comprising a liquid crystal layer containing a liquid crystal molecule that is oriented in homogeneous alignment with no electric field applied thereto; a first polarizer placed on one side of the liquid crystal cell; a first optical element placed between the liquid crystal cell and the first polarizer; and a second polarizer placed on the other side of the liquid crystal cell, wherein the first optical element is substantially optically isotropic, the liquid crystal cell has an initial alignment direction that is substantially parallel to the direction of an absorption axis of the first polarizer, and the absorption axis of the first polarizer is substantially perpendicular to an absorption axis of the second polarizer. The liquid crystal panel shows less discoloration of images even when the screen is viewed from oblique directions.
Owner:NITTO DENKO CORP
Photocurable composition and coating composition
ActiveUS20070066702A1High hardnessLess discolorationPhotosensitive materialsRadiation applicationsRefractive indexUltraviolet
There are provided a photocurable composition capable of being readily cured by irradiation of ultraviolet rays and a cured product of the photocurable composition, as well as a coating composition and a coating film obtained from the coating composition. The cured product exhibits a high refractive index, a less discoloration and an excellent transparency. The present invention relates to a photocurable composition comprising (A) an episulfide compound containing a thiirane ring; and (B) a photo-base generator represented by the general formula (1): wherein Ar is phenyl, etc.; R is an alkyl group, etc.; —A+ is an ammonium ion; and X− is a borate anion, etc., and a coating composition comprising the photocurable composition and (C) a modified silicone oil, as well as a cured product and a coating film obtained from these compositions.
Owner:MITSUBISHI GAS CHEM CO INC
Coating composition, coating film made of same, and optical article
InactiveUS20060167217A1Improve wettabilityHigh refractive indexOrganic chemistryProtein adhesivesRefractive indexSilicone oil
There is provided a coating composition having a good wetting property which is capable of forming a coating film exhibiting a high refractive index, a less discoloration, and excellent transparency and uniformity when polymerized and cured. The present invention relates to a coating composition comprising (A) 100 parts by weight of a thiirane ring-containing compound, (B) 0.0001 to 10 parts by weight of a catalyst for accelerating polymerization of the thiirane ring-containing compound, and (C) 0.005 to 4 parts by weight of a modified silicone oil; a coating film produced from the composition; and an optical product provided with the coating film.
Owner:MITSUBISHI GAS CHEM CO INC
Toner for developing latent electrostatic image, method for producing the same and apparatus for producing the same, and developer, toner container, process cartridge, image forming method and image forming apparatus
InactiveUS8029961B2Excellent transferring performance and cleaning performanceHigh quality imagingDevelopersImage formationEngineering
Owner:RICOH KK
Ink jet-recording medium and method for producing the same
InactiveUS20030031839A1Less discolorationLess fadingLayered productsDecorative surface effectsPolymer scienceFading
An ink jet-printing medium comprising a substrate and an ink-receptive layer which has at least one layer and is formed on at least one major surface of the substrate, in which at least one layer of the ink-receptive layer contains fibrous fine powder as a pigment in an amount of at least 20% by weight of the total weight of the whole pigment contained in the layer which contains the fibrous fine powder. This medium can be produced at a low cost and has high printing quality while suppressing the discoloration or fading of the prints.
Owner:HITACHT MAXELL LTD
Flame-retardant polyamide composition
InactiveUS7816438B2Excellent in incombustibilityExcellent in propertiesAnti-corrosive paintsPolymer scienceAntimony compounds
To provide a polyamide resin composition which inhibits generation of a gas, formation of decomposition products and discoloration of molded articles even under high molding temperature conditions, is excellent in incombustibility and toughness, and heat resistance in a reflow soldering step being required for surface mounting. The present invention provides a flame-retardant polyamide composition comprising 20 to 80% by mass of polyamide (A), 5 to 40% by mass of a flame retardant (B), 0.01 to 0.45% by mass of an antimony compound (C) and 0.5 to 10% by mass of a salt of zinc or calcium (D).
Owner:MITSUI CHEM INC
Liquid crystal panel and liquid crystal display
ActiveUS7852441B2Less discolorationReduce the amount requiredNon-linear opticsOptical elementsEngineeringPolarizer
A liquid crystal panel of the present invention comprises at least: a liquid crystal cell comprising a liquid crystal layer containing a liquid crystal molecule that is oriented in homogeneous alignment with no electric field applied thereto; a first polarizer placed on one side of the liquid crystal cell; a first optical element placed between the liquid crystal cell and the first polarizer; and a second polarizer placed on the other side of the liquid crystal cell, wherein the first optical element is substantially optically isotropic, the liquid crystal cell has an initial alignment direction that is substantially parallel to the direction of an absorption axis of the first polarizer, and the absorption axis of the first polarizer is substantially perpendicular to an absorption axis of the second polarizer. The liquid crystal panel shows less discoloration of images even when the screen is viewed from oblique directions.
Owner:NITTO DENKO CORP
Foodstuff of tablets or capsules
ActiveUS8241677B2Improve responseStrong inhibitory activityBiocideMilk preparationSilicon dioxideSucrase
A foodstuff of a tablet or capsule, includes: an extract of a plant of genus Salacia; and at least one of calcium carbonate and silicon dioxide in an amount of 1% by mass or more based on the total mass of the tablet or capsule, wherein 50% inhibition concentration (IC50 value) of sucrase is 10 μg / ml or more and 300 μg / ml or less.
Owner:FUJIFILM CORP
Process For Producing Phosphonitrilic Acid Ester
InactiveUS20080091050A1Less discolorationSmall contentPhosphorus organic compoundsSolventPhosphite ester
<Problem to be Solved> A process for producing a cyclic and / or linear phosphonitrilic acid ester from a cyclic and / or linear phosphonitrile dichloride is provided, wherein the reaction time is shorter and the content of monochloro phosphazenes is very small. <Solution> When phosphonitrile dichloride is reacted with a metal arylolate and / or a metal alcoholate in the presence of a reaction solvent, a metal arylolate and / or a metal alcoholate composed of at least two different metals having different ionization energies is used and also a specific compound is used as a catalyst.
Owner:ASAHI KASEI CHEM CORP
Tackifier, Tackifier for Medical or Industrial Use, Adhesive and/or Pressure-Sensitive Adhesive for Medical or Industrial Use, Adhesive Sheet and/or Pressure-Sensitive Adhesive Sheet for Medical or Industrial Use, and Pressure-Sensitive Adhesive Tape for Medical or Industrial Use
ActiveUS20150032042A1Reduce melt viscosityGood coating effectAbsorbent padsOther rubber adhesivesElastomerResin acid
Provided is a resin acid ester-based tackifier having a good compatibility with a synthetic rubber elastomer, being capable of reducing the melt viscosity of the elastomer, and being capable of imparting excellent adhesive properties and / or pressure-sensitive adhesive properties to the elastomer. The tackifier is composed of an ester composition characterized by(i) the ester composition comprising 70% by weight or more of a resin acid ester represented by the general formula (1):and(ii) the S′NMR / SNMR ratio of the ester composition being at least 6% in the 1H-NMR spectrum of the ester composition, wherein S′NMR is the total integral value of the proton signal(s) appearing in the region of 6 to 8 ppm and SNMR is the total integral value of all the proton signals appearing over the entire range of the 1H-NMR spectrum.
Owner:ARAKAWA CHEM IND LTD
Adhesive tape and wire harness having adhesive tape
InactiveUS20180127619A1Less discolorationFilm/foil adhesivesNitrile polymer adhesivesMeth-Degree of polymerization
An adhesive tape includes a supporting body containing polyvinyl chloride and an adhesive layer containing a (meth)acrylic polymer, a rubber polymer, and tackifier resin. In the adhesive tape, the degree of polymerization of polyvinyl chloride is between 1250 and 1800 inclusive, and the (meth)acrylic polymer contains no nitrogen atoms. The (meth)acrylic polymer contains a structural unit derived from at least a type of monomer selected from the group consisting of methyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate, butyl acrylate, 2-hydroxyethyl acrylate, methyl methacrylate, and 2-hydroxyethyl methacrylate.
Owner:YAZAKI CORP
Tackifier, tackifier for medical or industrial use, adhesive and/or pressure-sensitive adhesive for medical or industrial use, adhesive sheet and/or pressure-sensitive adhesive sheet for medical or industrial use, and pressure-sensitive adhesive tape for medical or industrial use
ActiveUS9758703B2Good coating effectImprove adhesionAbsorbent padsOther rubber adhesivesElastomerSynthetic rubber
Provided is a resin acid ester-based tackifier having a good compatibility with a synthetic rubber elastomer, being capable of reducing the melt viscosity of the elastomer, and being capable of imparting excellent adhesive properties and / or pressure-sensitive adhesive properties to the elastomer.
Owner:ARAKAWA CHEM IND LTD
Benzofuranone derivatives and application of the same
ActiveUS8840810B2Good colorFlowability of improvedOrganic chemistryChemical inhibitorsCarbon centered radicalsBenzoic acid
The present invention relates to the antioxidant compounds which are synthesized or derived from benzofuranone compound and benzoic acid compound. The antioxidant compound with remarkable heat resistance possesses carbon-centered radical quencher and primary antioxidant synergism. It can be use as additive for polymer to enhance its stability of melting flow and color.
Owner:CHITEC TECH +2
Absorbent antimicrobial wound dressings
The present invention provides methods for preparing an absorbent antimicrobial wound dressing which comprise steps of (a) preparing an antimicrobial coating composition by mixing an antimicrobial agent and one or more polymers in a solvent system that comprises a non-aqueous solvent, (b) contacting the antimicrobial coating composition of step (a) with a wound dressing substrate which comprises absorbent fibers or absorbent particles, and (c) drying the product of step (b). The present invention also provides absorbent antimicrobial wound dressings including those prepared by these methods as well as antimicrobial coating compositions and methods of producing antimicrobial coating compositions.
Owner:MOLNLYCKE HEALTH CARE AB
Quinacridone pigment composition for coloring resins
ActiveUS20180346730A1Improve heat resistanceHigh transparencyPorphines/azaporphinesQuinacridonesMasterbatchPolymer science
Provided is a quinacridone pigment composition for coloring plastics, particularly engineering plastics. The quinacridone pigment composition has high transparency and high color strength and also has high heat resistance, so that discoloration during molding of a resin (a color change of a molded plate) is very small. Also provided are a masterbatch and a resin molded product that contain the pigment composition. The pigment composition for coloring resins contains a quinacridone pigment and a pigment that absorbs fluorescence in a wavelength range of 500 to 600 nm. The inventors have found that, when the pigment composition is used as a colorant of a resin molded product subjected to a high-temperature thermal history, the change in color, i.e., the discoloration, of the resin molded product obtained is very small. Thus, the present invention has been completed.
Owner:DAINIPPON INK & CHEM INC
Mold release sheet for hot pressing and method for manufacturing flexible printed wiring board using the same
ActiveCN101421086BLess discolorationNo damageSynthetic resin layered productsCircuit precursor manufactureHeat resistanceEngineering
A mold release sheet for hot pressing which comprises a film made of a heat-resistant plastic, and a resin layer having a glass transition temperature (Tg) of -50 to 20°C and exhibiting good mold release property which is provided on at least one surface of the film. The sheet can be easily released from a film-adhered article without giving an damage to a substrate after hot pressing, causing the contamination such as adhesion of a resin, etc., and furthermore, without causing the lowering of the connection reliability due to discoloration of a gold-plated surface formed by the terminal plating.
Owner:SOMAR CORP
Coating composition, coating film made of same, and optical article
ActiveUS20120219807A1Improve wettabilityHigh refractive indexSynthetic resin layered productsPretreated surfacesRefractive indexSilicone oil
There is provided a coating composition having a good wetting property which is capable of forming a coating film exhibiting a high refractive index, a less discoloration, and excellent transparency and uniformity when polymerized and cured. The present invention relates to a coating composition comprising (A) 100 parts by weight of a thiirane ring-containing compound, (B) 0.0001 to 10 parts by weight of a catalyst for accelerating polymerization of the thiirane ring-containing compound, and (C) 0.005 to 4 parts by weight of a modified silicone oil; a coating film produced from the composition; and an optical product provided with the coating film.
Owner:MITSUBISHI GAS CHEM CO INC
Addition-curable silicone composition, method for producing same, cured silicone product, and optical element
ActiveCN108795053BImprove heat resistanceHigh refractive indexSemiconductor/solid-state device detailsSemiconductor devicesPolymer sciencePtru catalyst
An addition-curable silicone composition comprising a phenyl group and capable of obtaining a cured product excellent in heat resistance, with little weight change and little discoloration at high temperatures. The addition-curable silicone composition of the present invention comprises the following components: (A-1) branched organopolysiloxane represented by formula (1); (A-2) linear organopolysiloxane represented by formula (2) Organopolysiloxanes, (B) organohydrogenpolysiloxanes, which have at least 2 or more hydrogen atoms bonded to silicon atoms in one molecule; (C) polyorganometallic siloxanes, containing Si‑O -Ce bond and Si-O-Ti bond, the Ce content is 50-5000ppm, the Ti content is 50-5000ppm, the viscosity at 25°C is 10-10000mPa·s, relative to the total number of organic groups contained in one molecule, having at least 10 mole percent aryl groups; and (D) a hydrosilylation catalyst comprising a platinum group metal.
Owner:SHIN ETSU CHEM IND CO LTD
Tungsten oxide photocatalyst modified with copper ion, and process for production thereof
InactiveUS9061272B2Less discolorationImprove productivityDispersed particle separationCatalyst activation/preparationAtmospheric airUltraviolet
The present invention relates to a copper ion-modified tungsten oxide photocatalyst subjected to chemical etching treatment with a basic aqueous solution in which a rate of change in diffuse reflectance of the photocatalyst as measured at a wavelength of 700 nm between before and after irradiated with an ultraviolet light in atmospheric air is less than 10%; and a process for producing a copper ion-modified tungsten oxide photocatalyst which includes a copper ion modifying step of modifying a tungsten oxide powder with a copper ion; a chemical etching step of subjecting the tungsten oxide powder to chemical etching treatment with a basic aqueous solution, the chemical etching treatment being carried out either before or after the copper ion modifying step; and a drying step of drying the product obtained after the above steps at a temperature of 200° C. or lower.
Owner:SHOWA DENKO KK
Silver product and method of manufacturing silver product
ActiveCN112166042ALess discolorationGood lookingPolishing machinesDecorative surface effectsUltra high purityMetal
Owner:MISTY COLLECTION CO LTD
Polycarbonate resin composition and method of preparing the same
The present invention relates to a polycarbonate resin composition. According to the present invention, a polycarbonate resin composition, which realizes a high whiteness degree, exhibits less discoloration due to superior heat stability during storage and processing, and has improved fluidity, laser reactivity, and plating adhesion, and a method of preparing the same are provided.
Owner:LG CHEM LTD
Method and plant for purifying a carbohydrate rich liquid
InactiveUS8877920B2Avoid easy cloggingReduce dirtSugar derivativesPurification by physical meansSludgeCentrifugation
Described is a method for preparing a purified liquid containing carbohydrates. The method comprises the steps of: hydrolysing starch to a dextrose equivalent (DE) of 10 or above, thus obtaining a liquid of carbohydrates; removing a heavy weight sludge fraction from the light weight liquid of carbohydrates using centrifugation; filtering the remaining liquid of carbohydrates, the filter being capable of retaining coarser particles while allowing particles with a diameter less than 2 μm to pass; performing membrane separation on the filtered liquid of carbohydrates using a membrane having a pore size at 2 μm or below; and recovering a permeate stream of purified liquid containing carbohydrates. Also disclosed in a plant for performing the method.
Owner:ALFA LAVAL CORP AB
Method and plant for purifying a carbohydrate rich liquid
InactiveUS20120226032A1Less discolorationSmall sizeSugar derivativesChemical/physical/physico-chemical processesSludgeCentrifugation
Described is a method for preparing a purified liquid containing carbohydrates. The method comprises the steps of: hydrolysing starch to a dextrose equivalent (DE) of 10 or above, thus obtaining a liquid of carbohydrates; removing a heavy weight sludge fraction from the light weight liquid of carbohydrates using centrifugation; filtering the remaining liquid of carbohydrates, the filter being capable of retaining coarser particles while allowing particles with a diameter less than 2 μm to pass; performing membrane separation on the filtered liquid of carbohydrates using a membrane having a pore size at 2 μm or below; and recovering a permeate stream of purified liquid containing carbohydrates. Also disclosed in a plant for performing the method.
Owner:ALFA LAVAL CORP AB
Quinacridone pigment composition for coloring resins
ActiveUS10526491B2Improve heat resistanceHigh transparencyPorphines/azaporphinesQuinacridonesMasterbatchPolymer science
Provided is a quinacridone pigment composition for coloring plastics, particularly engineering plastics. The quinacridone pigment composition has high transparency and high color strength and also has high heat resistance, so that discoloration during molding of a resin (a color change of a molded plate) is very small. Also provided are a masterbatch and a resin molded product that contain the pigment composition. The pigment composition for coloring resins contains a quinacridone pigment and a pigment that absorbs fluorescence in a wavelength range of 500 to 600 nm. The inventors have found that, when the pigment composition is used as a colorant of a resin molded product subjected to a high-temperature thermal history, the change in color, i.e., the discoloration, of the resin molded product obtained is very small. Thus, the present invention has been completed.
Owner:DAINIPPON INK & CHEM INC
Phosphite compositions
ActiveUS8916065B2Increase loadImprove stabilityAluminium compoundsChemical inhibitorsPhosphoric Acid EstersPolymer science
Owner:SI GROUP INC
Foodstuff of tablets or capsules
A foodstuff of a tablet or capsule, includes: an extract of a plant of genus Salacia; and at least one of calcium carbonate and silicon dioxide in an amount of 1% by mass or more based on the total mass of the tablet or capsule, wherein 50% inhibition concentration (IC50 value) of sucrase is 10 μg / ml or more and 300 μg / ml or less.
Owner:FUJIFILM CORP
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