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1457results about How to "Good light stability" patented technology
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Loaded latex compositions with dye and stabilizer
InactiveUS6361916B1Good light stabilityImprove printing qualityMethine/polymethine dyesPhotography auxillary processesHydrophobic polymerOptical recording
A composition that is useful in a wide variety of applications comprises a latex having water as a continuous phase and, as the dispersed phase, hydrophobic polymer particles having associated therewith both a dye and a stabilizer for the dye. In a particularly preferred embodiment, the dye is an infrared absorbing dye. The composition can be used as an inkjet ink, as a coating composition to form an infrared sensitive optical recording layer or for other purposes.
Owner:EASTMAN KODAK CO
Silica-coated quantum dots and preparation method thereof
InactiveCN107474821AEasy to formImprove quantum efficiencyLuminescent compositionsQuantum dotSilica coating
The invention relates to silica-coated quantum dots and a preparation method thereof. Silica employs a silanization agent as a raw material, the raw material is added into an anhydrous organic solvent containing quantum dots, and a reaction is carried out in order to prepare silica-coated quantum dots, wherein the mass ratio of the silanization agent to the quantum dots is 0.1-10:1. During preparation, a certain amount of the silanization agent is added into the anhydrous organic solvent containing quantum dots; under a sealing or opening condition and at a certain temperature, a continuous stirring is carried out for a period of time in order to obtain a silica-coated quantum dots sample; the anhydrous organic solvent is an analytically pure organic solvent or a totally anhydrous organic solvent, and the silanization agent is used for carrying out a hydrolysis reaction depending on the organic solvent or residual moisture in air in order to obtain a silica coating. The preparation method is simple, water, ammonia, sulfydryl and other catalysts are not needed for introduction, initial fluorescence efficiency of quantum dots are not weakened, and the silica-coated quantum dots nano-material has very high quantum efficiency and stability.
Owner:SHANGHAI JIAO TONG UNIV
Bio-based artificial quartz stone and production process thereof
ActiveCN102898070AReduce environmental pollution problemsAchieve recyclingCeramic shaping apparatusWeather resistanceDefoaming Agents
A bio-based artificial quartz stone and a production process thereof are disclosed. The bio-based artificial quartz stone includes the following components by weight: 0-80% of quartz sand; 10-70% of quartz powder; 3-20% of curable resin; 0.05-3% of a curing agent; 0.01-40% of lignin; 0-5% of a crosslinking agent; 0.05-5% of a coupling agent; 0-1% of a promoter; 0-2% of a pigment; and 0-3% of a defoaming agent. According to the invention, the lignin is used in the artificial quartz, the environmental pollution of the lignin is reduced, the cost of the artificial quartz is reduced, and at the same time the weather resistance and light stability of the artificial quartz are improved, thus the artificial quartz has antibacterial ability, is green and environmental-friendly, and is suitable for using in building decoration of living environments.
Owner:SUZHOU TOPOLINE TECH
Optical recording medium
InactiveUS20050100704A1Increase line speedGood light stabilityLayered productsRecord information storagePhoto stabilityOptical recording
An optical recording medium can be recorded at a high linear velocity of at least 10 m / s while maintaining an excellent light stability and favorable reflectance. A recording medium is constructed of a recording layer on a substrate, the recording layer including a first dye with a maximum absorption wavelength in a thin-film state of 450 nm to 620 nm inclusive as a first dye and being formed so as to include a second dye with an extinction coefficient of at least 0.5 for a recording wavelength. In this case, it is preferable for the second dye to have a maximum absorption wavelength of 620 nm to 750 nm inclusive in a thin-film state.
Owner:TDK CORPARATION
Inkjet ink sets for high speed printing on plain papers and glossy media
InactiveUS20090169761A1Improve image qualityLow hazeLiquid surface applicatorsInksEngineeringMagenta
An inkjet ink set comprising a cyan ink, a magenta ink and a yellow ink, wherein each of said cyan, magenta and yellow inks individually comprises at least 65% water, between 1% and 5% by weight of a dispersed pigment colorant, a surfactant that reduces static surface tension, a dynamic surface tension reducing agent distinct from the surfactant, and at least one humectant distinct from the surfactant and the dynamic surface tension reducing agent; wherein said surfactant, said dynamic surface tension reducing agent and said humectant can be the same or different between said cyan, magenta and yellow inks; and wherein each of said cyan, magenta and yellow inks is characterized by exhibiting a viscosity normalized dynamic surface tension at surface refresh ages of 0.01 s of less than 23.0 mN / (m*cP); and wherein the average viscosity normalized dynamic surface tension at a surface refresh age of 0.01 s for said cyan, magenta and yellow inks taken together is less than 22.0 mN / (m*cP).
Owner:EASTMAN KODAK CO
Liquid crystal composition and applications thereof
ActiveCN104774623AStrong dielectric anisotropyHigh optical anisotropyLiquid crystal compositionsNon-linear opticsCrystallographyLiquid-crystal display
Owner:BEIJING BAYI SPACE LCD MATERIALS TECH
Liquid crystal composition with stable threshold voltage and application thereof
ActiveCN103937508AImprove thermal stabilityGood light stabilityLiquid crystal compositionsNon-linear opticsBenzeneCrystallography
The invention relates to a liquid crystal composition with a stable threshold voltage and an application thereof. The liquid crystal composition comprises the following components: (1) 5%-40% of a compounds shown in a general formula I; (2) 10%-40% of a compound shown in a general formula II; compounds with a dioxyheterocycle structure are taken as polar ingredients of the liquid crystal composition to overcome the defect that the photoelectric characteristic of the liquid crystal composition changes with frequency; the polar ingredients composed of compound type I having a difluoromethoxyl structure and the compound type II having a 3,4,5-trifluoro-benzene structure are used together for regulating the voltage temperature stability of the liquid crystal composition, so that the voltage characteristic of the liquid crystal composition does not change with the temperatures, and therefore the display effect of the liquid crystal composition is improved.
Owner:BEIJING BAYI SPACE LCD MATERIALS TECH
Hydrotalcite-rare earth-calcium zinc stablizer for PVC and its preparation method
InactiveCN101007878AImprove long-term thermal stabilityGood initial colorabilityChemical synthesisHydrotalcite
The invention discloses a PVC hydrotalcite- rare earth- calcium zinc stabilizing agent and the method for preparing the same, which in detail erlates to plastic composite stabilizing agent and the preaparing method, belonging to chemical field. The main component for stabilizing comprises column- supported hydrotalcite, unsaturated rare earth, and epoxy aliphatic acid calcium zinc, and it is prepared through chemical synthesis, reformed treatment and optimization compound. The product is characterized by outstanding thermal stabilizing effect, good first stage coloring property, sound plasticizing property, good transparenty, weatherability, improved quality, high effeciciency, no toxicity, no pollution, low cost. It can replace expensive organotin thermal stabilizing agent and is widely used in PVC product preparation, such as water- supply pipes, section bar, transparent granulate, film, medical apparatus, toy, fridge stamp and box sheet material.
Owner:扬州科宇化工有限公司
Storage phosphor screen having binderless colored layers
InactiveUS6977385B2Good light stabilityImprove imaging resolutionX-ray/infra-red processesElectrical apparatusPhthalocyanineNanocrystal
Owner:T2PHARMA GMBH
Rare earth upconversion nano crystal/silver difunctional composite nano material, preparation method thereof and application thereof in cancer detection and treatment
InactiveCN101948694ANot easy to decomposeGood light stabilityEnergy modified materialsColor/spectral properties measurementsTumour tissueNear infrared laser
The invention provides a rare earth upconversion nano crystal / silver difunctional composite nano material and a preparation method thereof as well as application thereof in preparation of medicine for treating tumour. The composite nano material can inhibit the growth of tumour tissue and can be used with anti-tumour medicine, thus improving medicine effect and achieving the aim of treatment; thecomposite nano material is difficult to decompose and has good light stability; damage to human body is less, the composite nano material can be taken as heat sensitizing agent and can absorb infrared light, the near infrared region (800-1200nm) is a transmission window of organism tissue, and damage of near infrared laser to human body is far less than that of laser in other wavebands, thus reducing damage to human body, being capable of being used as photothermal conversion agent and being superior when used for diagnosis and treatment on malignant tumour.
Owner:JILIN UNIV
Two-photon formaldehyde fluorescent probe and preparation and application thereof
ActiveCN105924394AStrong specificityReduce autofluorescence backgroundOrganic chemistryFluorescence/phosphorescenceFluorescenceCell membrane
The invention discloses a two-photon formaldehyde fluorescent probe and preparation and application thereof. The probe is a novel formaldehyde probe taking 1,8-naphthalimide as a two-photon fluorogen on the basis of an intramolecular charge transfer mechanism. Probe molecules have good light stability and a large Stoke's shift, the probe can well detect the formaldehyde concentration in a neutral buffer solution, and meanwhile compared with other aldehyde compounds, the probe has good specificity on formaldehyde. It is well proved through two-photon confocal fluorescence microscopic imaging experiments that the probe can permeate through a cell membrane to enter cells and can detect a change of the formaldehyde concentration in the cells, and an effective research tool for researching the physiological action of formaldehyde in the cells is provided.
Owner:ZHEJIANG UNIV OF TECH
Method for preparing nitrogen and sulfur-doped fluorescent carbon quantum dots
ActiveCN104449693AEasy to operateThe preparation process equipment is simpleNanoopticsLuminescent compositionsFreeze-dryingCytotoxicity
The invention discloses a method for preparing nitrogen and sulfur-doped fluorescent carbon quantum dots. According to the method, citric acid is taken as a carbon source, L-glutathione is taken as a nitrogen-sulfur dopant, a microwave oven is taken as a reaction platform, the carbon quantum dots with fluorescence properties are prepared in a heating manner, the residues and moisture are removed through dialysis and freeze drying, and quantum dot powder is obtained. The nitrogen and sulfur-doped carbon quantum dots are prepared by adopting the method disclosed by the invention; the method is simple in operation, low in cost, high in yield, simple in preparation process and equipment, free of a solvent, and easy to popularize and produce on a large scale, and can be rapidly finished within a short period of time; and the prepared carbon quantum dots have the advantages of good water solubility, high fluorescence properties, photobleaching resistance, adjustable emission spectrum, good biocompatibility, low cytotoxicity and the like, and have a good application prospect in the fields of bioimaging, biosensors and photo-electric devices.
Owner:NANCHANG UNIV
Fluorescent probes for labelling and/or detecting lipid droplets in cells as well as preparation and applications of fluorescent probes
InactiveCN108069902ARaw materials are cheap and easy to getSpecific recognition abilityOrganic chemistryFluorescence/phosphorescenceFluorophoreLipid Body
The invention belongs to the field of biological analysis and detection and relates to fluorescent probes for labelling and / or detecting lipid droplets in cells as well as preparation and applicationsof the fluorescent probes. The probes are synthesized with 4-bromo-1,8-naphthalic anhydride as an initial material and take 1,8-naphthalimide as a fluorophore, a C12 alkyl long chain as a specific lipid droplet positioning group and an N-containing group on the 4th site of a naphthalene ring as a fluorescence enhanced and stabilized group. The probes are simple to prepare and have high yield. Compared with existing Nile red and boron dipyrromethene lipid droplet fluorescent probes, the probes have high light stability and large stokes shift and are more suitable for fluorescence imaging. Theprobes have very important application value in cell labelling fluorescent imaging and biomedical fields.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Recording Ink, Ink Cartridge, Inkjet Recording Apparatus, Inkjet Recording Method and Ink Record
InactiveUS20080092773A1Smooth dischargeStrong color development abilityMaterial nanotechnologyMeasurement apparatus componentsPolymer scienceWater soluble
It is an object of the present invention to provide a recording ink comprising at least a color material particle which is an inorganic pigment particle coated with one of organic pigment and carbon black, a polymer particle, a water soluble solvent and water, an ink cartridge, an inkjet recording method, an inkjet recording apparatus and an ink record that utilize the recording ink respectively.
Owner:RICOH KK
Solar cell packaging adhesive film with high light conversion efficiency
ActiveCN104927686AImprove utilization efficiencyGood light stabilityNon-macromolecular adhesive additivesFilm/foil adhesivesLight conversion efficiencySemiconductor
The invention discloses a solar cell packaging adhesive film with high light conversion efficiency. According to the adhesive film, a heavy rare earth ion doped inorganic fluorophor is adopted as a light up-conversion agent (two or more incident photons with the wavelength greater than 1,100 nm can be converted into a photo with the wavelength being 500 nm to 1,100 nm); a semiconductor quantum dot with a certain size distribution is adopted as a light down-conversion agent (an incident photon with the wavelength being 300 nm to 500 nm can be converted into a photo with the wavelength being 500 nm to 1,100 nm); the utilization rate of solar spectrum is effectively increased; and the photoelectric conversion efficiency of photovoltaic modules is improved. The conversion agents in the adhesive film do not contain organic ligands, so that the adhesive film is good in light stability and long in service life. In addition, the adhesive film is formed by premixing basic resin, the light down-conversion agent, the light up-conversion agent and the like and then performing extrusion casting or calendering by an extruder, so that the industrialized production can be realized.
Owner:HANGZHOU FIRST APPLIED MATERIAL CO LTD
Heptamethanindocyanine dye and its synthesis method and application
ActiveCN102268191AEasy post-processingHigh yieldOrganic active ingredientsMethine/polymethine dyesCyanineSide chain
The invention relates to a heptamethine indocyanine dye containing N-fatty esters or N-fatty amide side chains, a synthetic method thereof and applications thereof in tumor targeting imaging and treatment. The heptamethine indocyanine dye which possesses or individually possesses near infrared absorption, fluorography and antineoplastic activity allows present research and development ideas and treatment levels of tumor targeting treatment medicaments to be greatly improved, and has great significances to aspects of early discovery, control and the like of various tumors.
Owner:ARMY MEDICAL UNIV
PVC high-weatherability imitation-wood crust foaming material
The invention provides a high-weatherability imitation-wood crust foaming material with high hardness, good toughness, high weatherability and low cost. According to the invention, titanium pigment and an ultraviolet absorbent are added to a common forming material. High weatherability and high thermal stability of rutile type titanium dioxide are utilized; and excellent thermal stability, chemical stability and light stability of the ultraviolet absorbent are utilized. The two materials are adopted in combination in the foaming material, such that the thermolability of the PVC material is effectively reduced, and the weatherability of the foaming material is improved. Organic or inorganic toners are adopted, such that an imitation-wood effect can be achieved through the blending of the toners. With the technical scheme provided by the invention, the appearance of the material is improved; and the use of wood powder is avoided, such that use of wood is reduced. Therefore, the material is beneficial for environmental protection. With the material provided by the invention, the risks during the production and the application processes are reduced.
Owner:ANHUI GUANGDE JINPENG NEW MATERIAL MFG
Nanometer medicine particle, preparation method and application thereof
ActiveCN103099784AEasy to prepareEasy to operatePowder deliveryPharmaceutical non-active ingredientsLipid formationHydrophobic polymer
The invention discloses a nanometer medicine particle. The nanometer medicine particle comprises a hydrophobic polymer, a single-layer lipid molecule, an amphipathy macromolecular compound, at least one chemotherapy drug attached to the hydrophobic polymer, and at least one near-infrared photothermal conversion agent, wherein the hydrophobic polymer, the at least one chemotherapy drug attached to the hydrophobic polymer, and the at least one near-infrared photothermal conversion agent form a hydrophobic core; the single-layer lipid molecule surrounds the surface of the hydrophobic core to form an intermediate layer; and the amphipathy macromolecular compound intersperses in the intermediate layer to form a shell. The invention also provides a preparation method of the nanometer medicine particle. The nanometer medicine particle can realize the combined treatment of thermotherapy and chemotherapy and has high biocompatibility; and the preparation method is simple, convenient and easy to carry out.
Owner:珠海中科先进技术研究院有限公司
Ion stabilizer doped perovskite film as well as preparation method and application thereof
ActiveCN108232014AExtend your lifeImprove stabilitySolid-state devicesSemiconductor/solid-state device manufacturingArylHalogen
The invention relates to an ion stabilizer doped perovskite film. An ion stabilizer is doped in the perovskite film. The chemical structural formula of the ion stabilizer is R1-R-R2, wherein R is alkyl; R1 is any one of alkyl, aryl, hydroxyl, carboxyl, alkoxyl, amino, substituted amino, ester group and acylamino; and R2 is at least one of halogen, an oxygen-containing group, a sulfur-containing group, a nitrogen-containing group, a phosphorus-containing group, an arsenic-containing group and a carbon-containing group. The invention also discloses a preparation method and an application of theion stabilizer doped perovskite film. By doping the ion stabilizer, the battery performance of a doped perovskite solar battery is improved, and the stability of the solar battery is improved.
Owner:HANGZHOU MICROQUANTA SEMICON CO LTD
Preparation method of titanium series catalyst for polyester
The invention discloses a preparing method of titanium-system catalyst of polyester, which is characterized by the following: reacting titanic acid ester and 2-hydroxy carboxylic compound and organic phosphonic acid compound; making the product react with at least one phosphorus compound of phosphoric acid, phosphorous acid, hypophosphorous acid, phosphate ester or phosphite ester; fitting for polyester industry.
Owner:CHINA PETROLEUM & CHEM CORP +1
Ternary hydrotalcite-rare earth-calcium/zinc nontoxic composite heat stabilizer and preparation thereof
The invention relates to a preparation method of compound thermal stabilizer in plastic processing additive and pertains to the technical field of plastic processing additive. The invention discloses a ternary hydrotalcite-rare earth-Ca / Zn innoxious compound thermal stabilizer and a preparation method thereof. The invention comprises the materials of the stabilizer such as ternary hydrotalcite, organic rare earth compound, Ca compound and Zn compound, a synthetic preparation method thereof and an optimal compounding method of ternary hydrotalcite-rare earth-Ca / Zn innoxious compound thermal stabilizer. The ternary hydrotalcite-rare earth-Ca / Zn innoxious compound thermal stabilizer provided by the invention serves as a new generation high-efficiency innoxious stabilizer, can replace the traditional lead salt and expensive organic stannum thermal stabilizer and can be widely applied to the fields of PVC pipe material, section material, wire and cable, medical instrument and membrane, etc.
Owner:江西宏远化工有限公司
Indole [3,2-b] carbazole derivative organic electroluminescent material
InactiveCN101161765AStrong fluorescenceLuminous color can be tunedMethine/polymethine dyesOrganic chemistryFuranFluorescence
The invention relates to a high luminance, high efficiency indole 3,2-b carbazole derivatives organic electroluminescenct material, belonging to the organic electroluminescent material technical field. The general structural formula of the indole 3,2-b carbazole derivatives organic electroluminescent compound is in the picture; in which, R3, R7 is alkyl or the substitute aryl, R1, R2 or R4-R6, R8 is hydrogen atom, benzene, naphthaline, anthracene, fluorine, carbazole, triarylated amine, thiophene, pyridine, pyran, quinoline, pyrrole, furan or imidazole. The compound of the invention has high fluorescence in both solution and solid film and has high film forming ability, thermal stability and photostability.
![Indole [3,2-b] carbazole derivative organic electroluminescent material](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/a02c72ab-1e49-4bcd-a70e-50b5466f0d3c/S200710114641XE00011.PNG "Indole [3,2-b] carbazole derivative organic electroluminescent material")
![Indole [3,2-b] carbazole derivative organic electroluminescent material](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/a02c72ab-1e49-4bcd-a70e-50b5466f0d3c/S200710114641XE00021.PNG "Indole [3,2-b] carbazole derivative organic electroluminescent material")
![Indole [3,2-b] carbazole derivative organic electroluminescent material](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/a02c72ab-1e49-4bcd-a70e-50b5466f0d3c/S200710114641XC00011.PNG "Indole [3,2-b] carbazole derivative organic electroluminescent material")
Owner:SHANDONG UNIV
High-ultraviolet absorption lignin/chemical sunscreen agent microcapsule and preparation method thereof
ActiveCN106852724APromote absorptionImprove antioxidant capacityCosmetic preparationsToilet preparationsSunscreen agentsEmulsion
Owner:SOUTH CHINA UNIV OF TECH
Ratiometric pH fluorescent probe as well as preparation method and application thereof
ActiveCN105693591AGet rid of preparationGet rid of the optimization processGroup 5/15 element organic compoundsFluorescence/phosphorescenceChemical structureFluorescence
The invention relates to a ratiometric pH fluorescent probe as well as a preparation method and an application thereof. The chemical structural formula of the fluorescent probe is shown as formula I in the specification, wherein R is -OH or a subcellular organelle positioning receptor, and the subcellular organelle positioning receptor comprises either of two components shown in the specification. Compared with the prior art, the ratiometric pH fluorescent probe has good light stability, high selectivity, wide pH value detection range and high sensitivity, the preparation method is simple, and the ratiometric pH fluorescent probe can be used for detecting the pH value of a chemical system or the pH value in living cells of creatures.
Owner:SHANGHAI NORMAL UNIVERSITY
PVC (polyvinyl chloride) foam material for sole and preparation method of PVC foam material
InactiveCN105440505AImprove temperature resistanceGood weather resistanceSolesWeather resistanceFoaming agent
The invention relates to the technical field of PVC materials, in particular to a PVC (polyvinyl chloride) foam material for a sole and a preparation method of the PVC foam material. The PVC foam material for the sole comprises raw materials in parts by weight as follows: 80-120 parts of PVC resin, 40-60 parts of a plasticizer, 20-30 parts of a filling agent, 6-10 parts of a wear-resistant modifier, 4-8 parts of a thermal stabilizer, 2-4 parts of a foaming agent, 0.8-1.2 parts of a lubricant and 1-2 parts of a processing aid. The raw materials are adopted for preparation of the PVC foam material for the sole, the weight proportion of the raw materials is controlled strictly, the performance of the prepared PVC foam material for the sole exceeds the national standards, and the PVC foam material is environment-friendly and has good temperature resistance and weather resistance, high strength, excellent anti-impact performance, good flame-retardant effect, good processing performance and excellent comprehensive performance.
Owner:广东祺龙科技有限公司
Fluorescent probe and preparation method thereof
ActiveCN106833623AStrong forceEasy to pile upOrganic chemistryFluorescence/phosphorescenceSolubilityDouble bond
The invention provides a fluorescent probe represented by the formula (I), wherein R1 and R2 are independently selected from H or an aromatic vinyl group, and at least one of R1 and R2 is the aromatic vinyl group; R3 is selected from H, F, Cl, Br, OH, OCH3, N(CH3)2 or C1-C6 alkyl; and R4 is selected from C1-C6 alkyl. Compared with the prior art, because the fluorescent probe provided by the invention has a relatively large electronic conjugated system and plane, the intensity of the intramolecular charge transfer effect can affect the molecular fluorescence emission intensity; when the fluorescent probe and the G-quadruplex generate a specific action, the flexibility of intramolecular rotatable double bonds is restricted, the intramolecular charge transfer effect is enhanced, and the fluorescence is also enhanced significantly; moreover, the fluorescent probe provided by the invention has the advantages of low biotoxicity, phototoxicity and photobleaching property, good light stability, good water solubility and good cell membrane permeability.
Owner:GUANGDONG UNIV OF TECH
Quantum-dot-based white OLEG device and manufacturing method thereof
ActiveCN104576961AContinuously adjustable emission wavelengthImprove luminous efficiencySolid-state devicesSemiconductor/solid-state device manufacturingQuantum dotQuantum
The invention discloses a quantum-dot-based white OLED device. The white OLED device comprises a substrate, a blue OLEG device, a quantum dot layer and a thin-film packaging layer, which are laminated to enable light emitted by the blue OLEG device to excite quantum dots in the quantum dot layer, wherein light is emitted out of the white OLED device through the quantum dot layer, and the light emitted by the quantum dot layer is white light synthesized by light emitted by the blue OLED device and light emitted by the quantum dots. The invention further discloses a manufacturing method for the white OLED device. The white OLED device is high in color purity and light stability and low in manufacturing cost.
Owner:SHENZHEN DANBANG INVESTMENT GROUP
Method of preparing hydrophobic nano-titanium dioxide powder
The invention discloses a method for preparing the hydrophobic nano titanium powder. Nano titanium dioxide is firstly conducted the inorganic surface processing in the liquid phase of the nano titanium water dispersion, and then is conducted the organic surface processing, and finally the nano titanium serum is filtered and washed until the electrical conductivity of the filtrate is less than 500 micro simens per centimeter, and is dried and crashed to get the hydrophobic nano titanium dioxide powder. The invention integrates the inorganic and the organic surface processing of the nano titanium dioxide, so that the surface nature of the nano titanium dioxide is changed, and the filtration speed of the nano titanium dioxide in the solid-liquid separation process is increased, and the loss rate of the nano titanium dioxide is reduced, and the craftwork flow process is short, and the operation is convenient and is easy to be controlled. The prepared nano titanium dioxide powder not only has good hydrophobic nature, but also has excellent light stability.
Owner:江苏科纳新材料有限公司
Terpolymer compositions for coating substrates used in computer printers
InactiveUS20050027068A1Good light stabilityCosmetic preparationsHair cosmetics(Hydroxyethyl)methacrylateComputer printing
Terpolymer compositions of vinyl caprolactam (VCL), dimethylaminopropyl methacrylamide (DMAPMA) and hydroxyethyl methacrylate (HEMA) are described to coat substrates for use in computer printers, and provide advantageous print quality thereon.
Owner:ISP INVESTMENTS LLC
Method of preparing CdTe/CdS/ZnS core-shell-core structure quantum points
InactiveCN101077976AOperational securityRaw materials are easy to getBiological testingLuminescent compositionsSolubilityRadiation reaction
The present invention belongs to the field of nanometer material and biological analysis and detection technology, and is especially preparation process of water soluble CdTe / CdS / ZnS quantum dot in core-shell-shell structure. The preparation process includes mixing zinc salt or zinc oxide with water soluble sulfhydryl compound in water phase, injecting prepared solution of CdTe / CdS in core-shell structure to obtain CdTe / CdS / ZnS precursor solution, setting the precursor solution in a glass tube and performing microwave radiation reaction in a microwave reactor to obtain CdTe / CdS / ZnS quantum dot in core-shell-shell structure. The process is completed in water phase, and is safe and simple. The CdTe / CdS / ZnS quantum dot in core-shell-shell structure has high fluorescence quantum efficiency, high water solubility, excellent stability and high biocompatibility, and may be applied widely in fluorescent marker for biological analysis and detection.
Owner:FUDAN UNIV
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