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4399 results about "Cyclohexane" patented technology
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Cyclohexane is a cycloalkane with the molecular formula C₆H₁₂. Cyclohexane is a colourless, flammable liquid with a distinctive detergent-like odor, reminiscent of cleaning products (in which it is sometimes used). Cyclohexane is mainly used for the industrial production of adipic acid and caprolactam, which are precursors to nylon.
Device and technique for producing cyclohexane by benzene hydrogenation
ActiveCN106187660AImprove mass transfer efficiencyIncrease reaction rateHydrocarbon by hydrogenationBenzeneGas phase
The invention discloses a device and technique for producing cyclohexane by benzene hydrogenation. The device for producing cyclohexane by benzene hydrogenation comprises a reactor, a superfine bubble generator and a bubble breaker, wherein the reactor is provided with a first containing cavity; the wall of the first containing cavity is provided with a feed port, a circulation discharge port, a circulation return port and a gas phase outlet; the superfine bubble generator is provided with a second containing cavity; the wall of the second containing cavity is provided with a return port and a gas phase outlet; the return port of the superfine bubble generator communicates with the circulation return port of the reactor; the bubble breaker is arranged in the second containing cavity; the bubble breaker is provided with a gas phase inlet and a liquid phase inlet which communicates with the circulation discharge port of the reactor; and the gas phase inlet of the bubble breaker communicates with the gas phase outlet of the reactor. The device disclosed by the embodiment of the invention has the advantages of high mass transfer efficiency, high reaction rate, short reaction time, low material consumption and energy consumption, simple structure, low manufacturing cost and low maintenance cost.
Owner:NANJING UNIV
Immediate release formulations of 1-aminocyclohexane compounds, memantine and neramexane
InactiveUS20060002999A1Improve bioavailabilityAdvantageous stability profileBiocideSenses disorderImmediate releasePharmaceutical medicine
The present invention relates to an immediate release solid oral dosage form containing 1-aminocyclohexanes, preferably memantine or neramexane, and optionally a pharmaceutically acceptable coating, wherein the active ingredient exhibits dose proportionality and is released at a dissolution rate of more than about 80% within about the first 60 minutes following entry of said form into a use environment. The dosage form is direct compressed and has a hardness within the range of between about 3 and about 40 Kp, exhibits an average Tmax within the range of about 2 to about 8 hours with an active ingredient load within the range of about 2.5 to about 150 mg. The formulation allows for dose-proportional compositions for once daily or b.i.d. dosing, while maintaining a steady average range of Tmax.
Owner:FOREST LAB HLDG LTD
Nanoparticles for Targeted Delivery of Active Agent
The present invention concerns a delivery system comprising a polymer-based nanoparticle; and a linker comprising a first portion non-covalently anchored to said nanoparticle, wherein at least part of said first portion comprises a hydrophobic / lipophilic segment embedded in said nanoparticle; and a second portion comprising a maleimide compound exposed at the outer surface of said nanoparticle. In accordance with one embodiment, the delivery system comprises one or more targeting agents, each covalently bound to said maleimide compound. In accordance with yet another embodiment, the delivery system comprises a drug. A specific example for a linker in accordance with the invention is octadecyl-4-(maleimideomethyl)cyclohexane-carboxylic amide (OMCCA).
Owner:YISSUM RES DEV CO OF THE HEBREWUNIVERSITY OF JERUSALEM LTD
Polyester resin and method for preparing the same
InactiveUS20120177854A1Superior heat-resistanceHigh impact strengthBio-packagingSynthetic resin layered productsCyclohexanedimethanolDiol
A polyester resin copolymerized with isosorbide and 1,4-cyclohexane dimethanol and having an improved impact strength, and a method for preparing the same are disclosed. The copolymerized polyester resin has an alternating structure of acid moieties which are derived from acid components and diol moieties which are derived from diol components, wherein the acid components comprise terephthalic acid, and the diol components comprise (i) 5˜99 mol % of 1,4-cyclohexanedimethanol and (ii) 1˜60 mol % of isosorbide with respect to the total diol components.
Owner:SK CHEM CO LTD
Antiperspirant compositions
InactiveUS6410003B1Excellent propertyLow visible depositCosmetic preparationsToilet preparationsAminalCyclohexane
Owner:UNILEVER HOME & PERSONAL CARE USA DIV OF CONOPCO IN C
Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and high glass transition temperature and articles made therefrom
Described are polyester compositions comprising at least one polyester which comprises terephthalic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and cyclohexanedimethanol, wherein the inherent viscosity and the Tg of the polyester provides for certain polyester properties. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.
Owner:EASTMAN CHEM CO
Polyester compositions containing cyclobutanediol having a certain combination of inherent viscosity and moderate glass transition temperature and articles made therefrom
ActiveUS20060293495A1Easy to optimizeHigh impact strengthDialysis systemsDialysisFiberCyclohexanedimethanol
Described are polyesters comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 1,4-cyclohexanedimethanol residues. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.
Owner:EASTMAN CHEM CO
Polyamide
A polyamide characterized in that the polyamide is obtained by thermal polycondensation of (a) dicarboxylic acid components comprising 10 to 80% by mole in total carboxylic acid components of 1,4-cyclohexanedicarboxylic acid having a trans / cis molar ratio of 50 / 50 to 97 / 3 and (b) an aliphatic diamine component is disclosed. The alicyclic polyamide having 1,4-cyclohexanedicarboxylic acid in a backbone thereof as a dicarboxylic acid unit, which is suitable as materials for various uses such as automotive parts, electric / electronics parts, industrial materials, engineering materials and daily household goods, and superior in heat resistance, low water absorption, light resistance, moldability and light weight, as well as superior in toughness, chemical resistance and appearance, and molded articles thereof.
Owner:ASAHI KASEI KK
Film(s) and/or sheet(s) comprising polyester compositions which comprise cyclobutanediol and have a certain combination of inherent viscosity and moderate glass transition temperature
ActiveUS20060293494A1Improve bindingIncrease temperatureDialysis systemsDialysisCyclohexanedimethanolCarboxylic acid
Described are film(s) and / or sheet(s) comprising polyesters comprising (a) a dicarboxylic acid component having terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic residues; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 1,4-cyclohexanedimethanol residues.
Owner:EASTMAN CHEM CO
Immediate release formulations of 1-aminocyclohexane compounds, memantine and neramexane
InactiveUS20060198884A1Improve stabilityBiocideSenses disorderImmediate releasePharmaceutical medicine
The present invention relates to an immediate release solid oral dosage form containing 1-aminocyclohexanes, preferably memantine or neramexane, and optionally a pharmaceutically acceptable coating, wherein the active ingredient exhibits dose proportionality and is released at a dissolution rate of more than about 80% within about the first 60 minutes following entry of said form into a use environment. The dosage form is direct compressed and has a hardness within the range of between about 3 and about 40 Kp, exhibits an average Tmax within the range of about 2 to about 8 hours with an active ingredient load within the range of about 2.5 to about 150 mg. The formulation allows for dose-proportional compositions for once daily or b.i.d. dosing, while maintaining a steady average range of Tmax.
Owner:FOREST LAB HLDG LTD
Certain polyester compositions which comprise cyclohexanedimethanol, moderate cyclobutanediol, cyclohexanedimethanol, and high trans cyclohexanedicarboxylic acid
InactiveUS20070232779A1Good chemical resistanceLess reactiveSynthetic resin layered productsOptical articlesPolyesterCyclohexanedimethanol
Described as one aspect of the invention are polyester compositions A polyester composition comprising at least one polyester which comprises:(A) a dicarboxylic acid component comprising:i) 70 to 100 mole % of cyclohexanedicarboxylic acid residues or an ester thereof comprising:(a) 80 to 99 mole % trans-cyclohexanedicarboxylic acid residues or an ester thereof; and(b) 1 to 20 mole % cis-cyclohexanedicarboxylic acid residues or an ester thereof;ii) 0 to 30 mole % of aliphatic dicarboxylic acid residues, other than cyclohexanedicarboxylic acid residues, having up to 16 carbon atoms or esters thereof, other than cyclohexanedicarboxylic acid residues; andiii) 0 to 10 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and(B) a glycol component comprising:i) 5 to 35 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; andii) 65 to 95 mole % of 1,4-cyclohexanedimethanol residues, 1,3-cyclohexanedimethanol residues, 1,2-cyclohexanedimethanol residues or esters thereof or mixtures thereof,wherein the total mole % of said dicarboxylic acid component is equal to 100 mole %;the total mole % of said glycol component is equal to 100 mole %;wherein the inherent viscosity of said polyester is from 0.35 to 1.2 dL / g as determined in 60 / 40 (wt / wt) phenol / tetrachloroethane at a concentration of 0.5 g / 100 ml at 25° C.; and wherein said polyester has a Tg of from 66 to 120° C. The polyesters may be manufactured into articles.
Owner:EASTMAN CHEM CO
Catalyst for producing 1,2-cyclohexane dicarboxylic acid diesters
InactiveCN101406840AHigh selectivityLow reaction pressureOrganic compound preparationCarboxylic acid esters preparationHydrogen pressureBULK ACTIVE INGREDIENT
The invention provides a catalyst for converting diisononyl phthalate, diisooctyl phthalate, dibutyl phthalate and other long-chain esters into corresponding 1, 2-cyclohexane dicarboxylic acid binary ester through hydrogenation. The catalyst for converting the diisononyl phthalate, the diisooctyl phthalate, the dibutyl phthalate and other long-chain esters into corresponding the 1,2-cyclohexane dicarboxylic acid binary ester through the hydrogenation consists of main active ingredients, additives and carriers, wherein the main active ingredients are noble metal Ru and Pd; the additives are Fe, Co, Ni, Cu and other metals or oxides; and macroporous Al2O3, ZrO2, TiO2 and the like are selected as the carriers. Under certain temperature, certain hydrogen pressure and the action of the catalyst, the diisononyl phthalate, the diisooctyl phthalate, the dibutyl phthalate and other long-chain esters in a trickle bed reactor can be converted into the corresponding the 1, 2-cyclohexane dicarboxylic acid binary ester with high activity and high selectivity.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Polyolefin Based Hot Melt Containing a Solid Plasticizer
A hot melt adhesive that is composed of a metallocene catalyzed polyethylene polymer, a hydrogenated styrenic block copolymer, a tackifying resin, and a solid plasticizer. The preferred polyethylene polymer is an ethylene-octene copolymer, and the preferred styrenic block copolymer is a styrene-ethylene-butylene-styrene having less than 30% styrene content. The preferred solid plasticizer is either glycerol tribenzoate or 1,4-cyclohexane dimethanol dibenzoate.
Owner:BOSTIK INC
Biaxially oriented polyester film and release film
InactiveUS20060210768A1Avoid painSynthetic resin layered productsRecord information storagePolyesterCyclohexanedimethanol
There is provided a biaxially oriented polyester film comprising a polyester which contains repeating units containing 1,4-cyclohexanedicarboxylic acid and 1,4-cyclohexanedimethanol as main components, and exhibits a melting point of not less than 200° C., wherein the biaxially oriented polyester film has a heat shrinkage percentage of not more than 5% as measured at 130° C. in each of longitudinal and width directions thereof, and a total light transmittance of not less than 90%. The biaxially oriented polyester film of the present invention exhibits an excellent heat resistance notwithstanding the film is composed of an aliphatic polyester, and a good transparency inherent to the aliphatic polyester, and can be suitably used in optical applications.
Owner:MITSUBISHI POLYESTER FILM +1
Method for preparing 1,2-cyclohexane cyclohexanedimethanol dibasic ester
ActiveCN101417950AHigh selectivityLow reaction pressureOrganic compound preparationCarboxylic acid esters preparationReaction temperatureDibasic ester
The invention relates to a method for preparing 1, 2-cyclohexanedicarboxylic acid ester of binary, comprising a reaction system composed by binary phthalate ester, hydrogen and a catalyst; the reaction temperature ranges from 100 to 250 DEG C; the reaction pressure ranges from 3.0 to 12.0 Mpa; the molar ratio of H2 and X ranges from 50 to 450; the liquid space velocity of binary phthalate ester ranges from 0.1 to 2.5 h<-1>; the catalyst uses Al2O3, ZrO2, TiO2 or SiO2-Al2O3 as vehicle, and load active component can be Ru, Pt, Pd, Rh, Fe, Co, Ni and Cu; the binary phthalate ester is diisonynol phthalate, diisooctyl phthalate or dibutyl phthalate; the product 1, 2-cyclohexanedicarboxylic acid ester of binary is 1, 2-cyclohexane diisononyl dimethyl ester, 1, 2-cyclohexane diisooctyl dimethyl ester or 1, 2-cyclohexane dibutyl dimethyl ester.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Process for a cyclohexanedimethanol using raney metal catalysts
InactiveUS6919489B1High trans contentOrganic compound preparationOxygen compounds preparation by reductionRheniumCyclohexanedimethanol
Disclosed is a process for a cyclohexanedimethanol by hydrogenation of a cyclohexane-dicarboxylate ester in the presence of a Raney metal catalyst doped with rhenium. The process is useful for the reparation of 1,4-cyclohexanedimethanol from dialkyl esters of 1,4-cyclohexanedicarboxylate or dialkyl terephthalates. When Raney nickel is used as the catalyst, the process produces CHDM having a high trans content.
Owner:EASTMAN CHEM CO
Superparamagnetism mesoporous silicon dioxide composite ball and preparing method thereof
InactiveCN101256864ALarge specific surface areaHigh content of magnetic substancesSilicaInorganic material magnetismParticulatesMesoporous silica
A superparamagnetism mesoporous silicon dioxide composite ball of the present invention and manufacture method thereof belong to nucleocapsid type technology field of magnetic nano particle. The shape of the composite ball is global; inner core being made of magnetic ferrite nano particle cluster, shell coating layer being made of mesoporous silicon dioxide; quality ratio of magnetic ferrite nano particle in particulate being 40-80%. Method of manufacturing has that producing magnetic ferrite nano particle is by using coprecipitation method; executing surface modification by adding oleic acid stirring; ultrasonic forming oil-in-water emulsion in the mix solution of ethyl orthosilicate and cyclohexane, cetyl trimethyl ammonium bromide as surfactant; ethyl orthosilicate hydrolytic condensation forming mesoporous silicon dioxide coating layer by adding ammonia spirit; finally taking off molding plate and getting products. Product of the invention has bigger specific surface area and stronger magnetic separation capacity, and has good dispersancy in water, and is further functionalization after being decorated at surface. The method of the present invention has simple process, and lower equipment requirement.
Owner:JILIN UNIV
Plasticizer Blends and Use Thereof
Provided are mixtures of 1) compounds of the formula:wherein R1 is a saturated or unsaturated cyclic hydrocarbon optionally substituted with an alkyl and / or an OXO-ester, and R2 is a C4 to C14 hydrocarbyl; and 2) one or more second plasticizers selected from the group consisting of alkyl terephthalates, alkyl phthalates, alkyl benzoate esters, di-benzoate esters, esters of cyclohexane polycarboxylic acids, and dialkyl adipates. Also provided are plasticized polymer compositions containing said mixtures.
Owner:EXXONMOBIL CHEM PAT INC
Process and equipment for preparing adipic acid by catalyzing air and oxidizing cyclohexane
InactiveCN101337879AImprove conversion rateHigh yieldOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsCyclohexanoneBoiling point
The invention discloses a process and a plant for preparing adipic acid by catalytically aerobically oxidizing cyclohexane. The process comprises the following steps: dissolving 1 to 50 PPM of a catalyst including single metalloporphyrin or mu-oxo bimetallic porphyrin or a mixture of single metalloporphyrin, mu-oxo bimetallic porphyrin and transition metal salt or oxide in cyclohexane; introducing 5 to 12 atm of air or oxygen-rich or oxygen-poor air into a multi-stage oxidation reactor with a gas distributor; controlling the reaction temperature at 140 to 160 DEG C; oxidizing cyclohexane for 45 to 120 min; feeding the mixture of the oxidation reaction into a flash separator to carry out flash evaporation at the temperature of 78 to 155 DEG C and under the pressure of 0.1 to 1.0 atm, so that the low-boiling-point products such as cyclohexane, cyclohexanol and cyclohexanone change to gas and are separated from adipic acid with the content above 80%; continuously circularly oxidizing the low-boiling-point products to separate and purify the high-boiling-point oxidation product; and purifying and separating by the existing technique to obtain fine adipic acid product. The process can directly prepare adipic acid by aerobically oxidizing cyclohexane, wherein the conversion rate of cyclohexane is up to 95%, and the yield of adipic acid is up to 70%.
Owner:HUNAN UNIV
Ruthenium(II) catalysts for use in stereoselective cyclopropanations
ActiveUS7754902B2High stereoselectivityHigh yieldRuthenium organic compoundsCobalt organic compoundsProtonationSalen ligand
Chiral ruthenium catalysts comprising salen and alkenyl ligands are provided for stereoselective cyclopropanation, and methods of cyclopropanation are provided. The chiral ruthenium catalyst is prepared in situ by combining an alkenyl ligand, a deprotonated chiral salen ligand, and a ruthenium (II) metal. A preferred catalyst is prepared in situ by combining 2,3-dihydro-4-venylbenzofuran, deprotonated 1,2-cyclohexanediamino-N,N′-bis(3,5-di-t-butyl-salicylidene) and RuCl2(p-cymene)]2.
Owner:VANDA PHARMA INC
Method for atmospheric catalytic oxidation of cyclohexane by metalloporphyrin
InactiveCN1405131APreparation by oxidation reactionsOxygen compounds preparation by hydrocarbon oxidationCyclohexanoneReaction temperature
The invention relates to a new process in which under the catalytic action of metal porphyrin the cyclohexane can be selectively oxdated by air and made into cyclohexanol and cyclohexanone. Under the condition of 2-10 atm air, reaction temp. is 125-150 deg.C, it selects and uses micro-oxo double metal porphyrin and single metal porphyrin or their solid carrier as main catalyst, and uses transition metal salt or oxide as co-catalyst, the metal porphyrin can high-effectively and high-selectively catalyze oxidation of cyclohexane by using air in the biological concentratino as biological enzyme. The dose of metal porphyrin is small and said metal porphyrin can be repeatedly used, and said catalyst dose also is small, its catalystic effect is good, said catalyst can be used for making homogeneous catalysis, and after it is solid-carried, it also can be used for making heterogeneous catalysis.
Owner:HUNAN UNIV
2,3-difluorophenyl derivative having negative dielectric anisotropy, liquid crystal composition, and liquid crystal display device
InactiveUS6548126B1Good compatibilityIncrease resistanceLiquid crystal compositionsOrganic chemistryLiquid crystallineCrystallography
The invention is to provide liquid crystalline compounds having a negative and extremely large dielectric anisotropy value and a small optical anisotropy value at the same time; liquid crystal compositions comprising the compound; and liquid crystal display devices fabricated by using the liquid crystal composition; the liquid crystalline compounds have 2,3-dihalogenophenylene moiety and are expressed by formula (1)wherein Ra and Rb each independently represents a linear or branched alkyl having 1 to 10 carbon, any methylene in the alkyl may be replaced by -O-, -S-, -CH=CH-, or -C=C-, but -O- is not successive, and any hydrogen in the alkyl may be replaced by halogen; rings A1 to A4 each independently represents trans-1,4-cyclohexylene, cyclohexene-1,4-diyl, pyridine-1,4-diyl, pyrimidine-2,5-diyl, or 1,4-phenylene, wherein at least one hydrogen in these rings may be replaced by halogen, and any nonadjacent methylene in cyclohexane ring may be replaced by -O-; Y1 and Y2 each independently represents F or Cl; Z1, Z2 and Z3 each independently represents a single bond, -CH2CH2-, -(CH2)4-, -COO-, -OCO-, -CH2O-, -OCH2-, -CF2O-, or -OCF2-; and l, m and n each independently is 0, 1 or 2, and the sum of l+m+n is 3 and less.
Owner:CHISSO CORP
Benzene hydrogenation catalyst as well as preparation method and application thereof
ActiveCN102600888AExcellent benzene hydrogenation catalytic performanceHigh catalytic activityMolecular sieve catalystsHydrocarbon by hydrogenationBenzeneAdjuvant
The invention relates to a benzene hydrogenation catalyst as well as a preparation method and application of the benzene hydrogenation catalyst. The catalyst consists of an active component Ru and adjuvants, wherein the active component Ru is loaded on the catalyst by a carrier; the adjuvants are one or two of La, Ce, Fe, Zn, Cu and B, and the carrier is a mesoporous molecular sieve MCM-41 modified by one or two of ZrO2, ZnO and CuO. The invention also provides a method for preparing cyclohexene and cyclohexane by benzene hydrogenation catalyzed by the catalyst. The catalyst provided by the invention can be prepared by a dipping sedimentation method or a chemical reduction method and has a higher catalytic activity and cyclohexene selectivity.
Owner:XIANGTAN UNIV
Pharmaceutical Dosage Forms Comprising 6'-Fluoro-(N-Methyl- or N,N-Dimethyl-)-4-Phenyl-4',9'-Dihydro-3'H-Spiro[Cyclohexane-1,1'-Pyrano[3,4,b]Indol]-4-Amine
ActiveUS20150111939A1Extension of timeModifies the physical and chemical propertiesBiocideNervous disorderPhenyl groupPyran
![Pharmaceutical Dosage Forms Comprising 6'-Fluoro-(N-Methyl- or N,N-Dimethyl-)-4-Phenyl-4',9'-Dihydro-3'H-Spiro[Cyclohexane-1,1'-Pyrano[3,4,b]Indol]-4-Amine](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/677d5899-3318-439e-beec-6e8f16d3f270/US20150111939A1-20150423-D00001.PNG "Pharmaceutical Dosage Forms Comprising 6'-Fluoro-(N-Methyl- or N,N-Dimethyl-)-4-Phenyl-4',9'-Dihydro-3'H-Spiro[Cyclohexane-1,1'-Pyrano[3,4,b]Indol]-4-Amine")
![Pharmaceutical Dosage Forms Comprising 6'-Fluoro-(N-Methyl- or N,N-Dimethyl-)-4-Phenyl-4',9'-Dihydro-3'H-Spiro[Cyclohexane-1,1'-Pyrano[3,4,b]Indol]-4-Amine](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/677d5899-3318-439e-beec-6e8f16d3f270/US20150111939A1-20150423-D00002.PNG "Pharmaceutical Dosage Forms Comprising 6'-Fluoro-(N-Methyl- or N,N-Dimethyl-)-4-Phenyl-4',9'-Dihydro-3'H-Spiro[Cyclohexane-1,1'-Pyrano[3,4,b]Indol]-4-Amine")
![Pharmaceutical Dosage Forms Comprising 6'-Fluoro-(N-Methyl- or N,N-Dimethyl-)-4-Phenyl-4',9'-Dihydro-3'H-Spiro[Cyclohexane-1,1'-Pyrano[3,4,b]Indol]-4-Amine](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/677d5899-3318-439e-beec-6e8f16d3f270/US20150111939A1-20150423-D00003.PNG "Pharmaceutical Dosage Forms Comprising 6'-Fluoro-(N-Methyl- or N,N-Dimethyl-)-4-Phenyl-4',9'-Dihydro-3'H-Spiro[Cyclohexane-1,1'-Pyrano[3,4,b]Indol]-4-Amine")
Owner:PARK THERAPEUTICS INC
Room-temperature cured phenyl silicon resin conformal coating
The invention discloses a room-temperature cured phenyl silicon resin conformal coating which comprises components A) a segmented copolymer of phenyl silicon resin and linear polyorganosiloxane or methyl phenyl silicon resin and linear polyorganosiloxane, B) alkoxy silane, C) a silane coupling agent containing amino or epoxy group, D) an organic titanium compound, E) organic phosphate flame retardant synergist, and (F) an organic hydrocarbon solvent or low molecular weight siloxane, wherein the organic hydrocarbon solvent is one or multiple of methylbenzene, dimethylbenzene, petroleum ether, cyclohexane and normal heptane; and the low molecular weight siloxane is a mixture of octamethyl-trisiloxan, octamethyl cyclotetrasiloxane or methyl cyclosiloxane. A product produced by the cured resin conformal coating of the invention has the advantages of very high transparency, good elasticity, tough and wearable surfaces as well as excellent high / low temperature performance, waterproofing, heat resistance, cold resistance, weathering resistance, ultraviolet ray resistance, medium resistance, irradiation resistance, flame retarding and the like.
Owner:MIANYANG WELLS ELECTRONICS MATERIAIS
Catalyst oxdie cyclohexane process
ActiveCN1530358AIncrease conversion rate per passImprove one-way yieldOxygen compounds preparation by hydrocarbon oxidationCyclohexanonePorphyrin
A process for preparing cyclohexanol, cyclohexanone and adipic acid by catalytic oxidization of cyclohexane under existance of metallic porphyrin catalyst and a certain temp and pressure through combination of different reactors is disclosed. Its advantages are high single-pass conversion rate of cyclohexane and total output rate, low energy consumption and cost, and no need of cyclohexanol or acetone solvent and cocatalyst.
Owner:CHINA PETROLEUM & CHEM CORP
Preparation method of positive material for lithium-sulfur battery
ActiveCN102832379AGood dispersionUniform particle sizeCell electrodesCarbon compositesCarbon nanotube
Owner:SHANGHAI INST OF SPACE POWER SOURCES
Moisture-retention sustained and controlled release fertilizer and method of preparing the same
InactiveCN101508616AThe synthesis process is simpleUniform thicknessFertilizer mixturesHigh absorptionDouble coating
The invention discloses a water holding slow-controlled releasing fertilizer and a preparation method thereof, belonging to the technical field of agricultural fertilizers and preparation thereof. Macromolecule coating fertilizer is taken as an inner core and a water holding layer is taken as an outside layer to form a double-coating water holding slow-controlled releasing fertilizer; an inner coating is macromolecule protective layer coating material with nutrition controlling and releasing property; an outside coating is the water holding layer with excellent water holding property. Water retention agent suspension liquid is sprayed to the surface of macromolecule coating fertilizer grains for outside coating; wherein the water retention agent is prepared by taking cyclohexane, emulsifier, acrylic acid, acrylamide, sodium hydroxide, cross linker and evocating agent and adopting the method of opposite phase suspension polymerization. The fertilizer has the function of controlled releasing, drought resistance, water saving, water holding and soil improving and the advantages of high absorption percentage, wear resistance, difficult falling and the like; utilization ratio of liquid manure is improved and the fertilizer can be widely used to desert control, lawn plant, soil improvement, gardening, agriculture and forestry and the like.
Owner:CHINA AGRI UNIV
Windows and other articles made from DMBPC polycarbonate homopolymer and copolymer
InactiveUS20070009741A1Degradation of polymerScratch resistantAgricultural articlesPicture framesPolymer scienceEthylene Homopolymers
Windows and other articles made from dimethyl bisphenol cyclohexane (DMBPC) polycarbonate exhibit enhanced scratch resistance properties and Mw degradation resistance properties as compared to traditional polycarbonates. Such windows and other articles made from DMBPC polycarbonate can be used in various applications including buildings, particularly in agricultural environments and in electronic devices.
Owner:SABIC GLOBAL TECH BV
Environmental protection chloroprene rubber adhesive agent and production method thereof
InactiveCN101418197AHigh viscosityGood storage stabilityHalogen rubber derivative adheisvesChloroprene adhesivesGas phaseEnvironmental labeling
The invention discloses an environment-friendly chloroprene rubber adhesive agent which comprises the following compositions: neoprene, alloprene, thixotropic agent, 2402 phenolic resin, extra light calcined magnesia, catalyst, cyclohexane, acetic ether, environment-friendly solvent oil and antioxidant BHT. The invention simultaneously discloses a method for producing the environment-friendly chloroprene rubber adhesive agent. The environment-friendly chloroprene rubber adhesive agent has the following advantages: 1. the agent is environment-friendly, does not contain toxic solvents of triphen and halogenated hydrocarbon, and meets the standard requirement of Technical Requirement for Environmental Labeling Products-Adhesives HJ / T 220-2005 2. the anhydrous catalyst is adopted for the preparation of a pre-reaction solution which has high viscosity and good storage stability; 3. gas phase method silica aerogel is added as the thixotropic agent; and the thixotropic index can reach 1.5 and is convenient for construction; and 4. the neoprene and the alloprene are combined for use to greatly improve the adhesive force and peeling strength to metal and other polar materials.
Owner:GUANGDONG SANVO CHEM IND TECH
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