Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

2481 results about "Alkoxy group" patented technology

In chemistry, the alkoxy group is an alkyl (carbon and hydrogen chain) group singularly bonded to oxygen; thus R–O. The range of alkoxy group is vast, the simplest being methoxy (CH₃O–). An ethoxy group (CH₃CH₂O–) is found in the organic compound ethyl phenyl ether, C₆H₅OCH₂CH₃ which is also known as ethoxybenzene. Related to alkoxy groups are aryloxy groups, which have an aryl group singular bonded to oxygen such as the phenoxy group (C₆H₅O–).

High purity tin compounds containing fluoroalkoxy substituent and methods for preparation thereof

Monoorgano tin trialkoxide compounds having chemical formula R'SnX3 and containing less than about 5 mol% R'2SnX2are described. R' is an optionally substituted organic substituent having about 1 to about 20 carbon atoms and each X is independently ORf, wherein Rf is a fluorinated organic substituent having about 1 to about 20 carbon atoms. Methods for synthesizing and purifying these compounds are also provided. The monoorgano tin compounds may be used for the formation of high-resolution EUV lithography patterning precursors and are attractive due to their high purity and minimal concentration of diorgano tin impurities.
Owner:GELEST INC +1

Electrolyte additive composition, electrolyte containing electrolyte additive composition, and preparation method and application of electrolyte additive composition

The invention belongs to the technical field of lithium ion batteries, and provides an electrolyte additive composition, an electrolyte containing the electrolyte additive composition, and a preparation method and application of the electrolyte additive composition. The electrolyte additive composition comprises an aluminum alkoxide compound and a phosphazene compound, the structure of the phosphazene compound is shown as a formula I, and R1-R6 are independently selected from fluorine, alkoxy or phenoxy. The electrolyte containing the additive composition has good thermal stability and flame retardance under high voltage, and the safety of the battery is greatly improved; in addition, the electrolyte additive composition can inhibit hydrolysis of LiPF6, so that generation of HF and side effects caused by HF are reduced. # imgabs0 #
Owner:SUN YAT SEN UNIV

Glass fiber reinforced halogen-free flame-retardant PBT / PC (polybutylene terephthalate / polycarbonate) alloy material with high dimensional stability

The invention discloses a high dimensional stability glass fiber reinforced halogen-free flame retardant PBT / PC alloy material, and relates to the technical field of PBT / PC alloy preparation, the raw materials comprise the following components by mass: 35-60 parts of PBT, 30-40 parts of PC, 2-10 parts of a modified heat resistant agent, 1-15 parts of an antioxidant, 0.1-6 parts of a heat stabilizer, 0.2-3 parts of a lubricant, 0.2-3 parts of a halogen-free flame retardant, 2-6 parts of mica, and 5-40 parts of glass fiber. The glass fiber reinforced PBT / PC alloy material is processed and prepared according to a set proportion and a set preparation sequence, the PBT / PC material with high dimensional stability is finally obtained, diisocyanate, hydroxyalkyl terminated polydimethylsiloxane and a hexaalkoxy silane coupling agent are compounded according to a certain proportion to prepare a modified heat-resistant agent, and the modified heat-resistant agent is added into the glass fiber reinforced PBT / PC alloy material to prepare the glass fiber reinforced PBT / PC alloy material. According to the PBT / PC alloy material disclosed by the invention, the overall heat resistance of the PBT / PC alloy material is improved while the interfacial compatibility among different materials is improved, and the prepared PBT / PC alloy material has better dimensional stability at different temperatures due to the proportion of PBT and PC and is not easy to change in size.
Owner:HANGZHOU ZETONG NEW MATERIAL TECH CO LTD

Dinanserin derivatives, compositions thereof, uses thereof

The application belongs to the technical field of pesticides, and particularly relates to a pyridylalanine derivative, a composition thereof and a use thereof. The compound is shown in the general formula I: wherein X1 represents hydrogen or fluorine, X2 represents hydrogen or fluorine, X3 represents hydrogen or fluorine, X4 represents hydrogen or fluorine, and X1, X2, X3 and X4 are not hydrogen at the same time; R1 and R2 independently represent hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or -(CO)R3; Y1 represents hydroxyl, alkoxyalkyloxy, trialkylsilyloxy or -O(CO)R3; Y2 represents hydrogen or alkyl; or Y1 and Y2 together form =O. The compound has excellent control effects on pests such as Myzus persicae, Lygus lineolaris, Rhopalosiphum maidis and Bemisia tabaci.
Owner:QINGDAO KINGAGROOT CHEM COMPOUNDS CO LTD

Organic molecules for optoelectronic devices

The invention relates to an organic molecule, in particular for the application in optoelectronic devices. According to the invention, the organic molecule includes or consists of a structure represented by Formula IwhereinR1 is selected from the group consisting of hydrogen and C6-C12-aryl, which is optionally substituted with one or more C1-C6-alkyl substituents, andRa is at each occurrence independently selected from the group consisting of: hydrogen, deuterium, N(R5)2, OR5, Si(R5)3, B(OR5)2, B(R5)2, OSO2R5, CF3, CN, F, Br, I, C1-C40-alkyl, C1-C40-alkoxy, C1-C40-thioalkoxy, C2-C40-alkenyl, C2-C40-alkynyl, C6-C60-aryl, and C2-C57-heteroaryl.
Owner:SAMSUNG DISPLAY CO LTD

Multifunctional organosilicon compound and related methods, compounds, and compositions

A multifunctional organosilicon compound is provided which has the general formula XSi([OSiR2]p-0-SiR2Y)a(R1)3-a— ln the formula, X is selected from H and ethylenically un saturated moieties; each Y independently comprises a functional moiety selected from alkoxysilyl moieties, acryloxy moieties, and epoxide moieties; each R is an independently selected hydrocarbyl group; each R1 is an independently selected hydrocarbyl group; subscript a is 1, 2, or 3; and each subscript b is independently 0, 1, or 2. A method of preparing the multifunctional organosilicon compound is also provided. The method comprises reacting (A) an organosilanol compound and (B) a silane compound having at least two hydrolysable groups. A functionalized siloxane compound prepared from the multifunctional organosilicon compound, a method of preparing the functionalized siloxane compound, and an adhesive comprising the functionalized siloxane compound are also provided.
Owner:DOW SILICONES CORP

Liquid crystal composition, and liquid crystal display including the same

InactiveUS20160230091A1Improve advancedHigh-rate response characteristicLiquid crystal compositionsNon-linear opticsHalogenSingle bond
Disclosed is a liquid crystal composition. The liquid crystal composition includes liquid crystal molecules including at least one of a liquid crystal compound having an alkenyl group and a liquid crystal compound having an alkoxy group, and a first stabilizer including a compound having a structure represented by Formula 1:where n is 0 or 1; m is 0 or 1; k is 0 or 1; Z1, Z2, and Z3 are each independently a single bond, —C═C—, —OCO—, —COO—, —CF2O—, or a C1 to C5 alkylene group; X1, X2, X3, and X4 are each independently hydrogen or halogen; Y is hydrogen, an alkylene group, an alkoxy group, a hydroxyl group, —NHCOCH3, or ═O; and A and B are cyclic compounds.
Owner:SAMSUNG DISPLAY CO LTD

Low-VOC (volatile organic compound) environment-friendly end-capped sulfydryl silane as well as preparation method and application thereof

The invention discloses low-VOC (volatile organic compound) environment-friendly end-capped mercapto silane as well as a preparation method and application thereof.The preparation method comprises the following steps: by taking chloroalkyl trialkoxysilane and linear alkyl polyether alcohol as raw materials, reacting to form an intermediate c; reacting alkyl acyl chloride with sodium sulfide or sodium hydrosulfide to form an intermediate e; and reacting the intermediate c with the intermediate e to obtain a final product. Silane is used as a rubber auxiliary agent, so that the volatilization amount of alcohols in the internal mixing process of a rubber compound can be greatly reduced, the emission amount of VOC during operation is reduced, meanwhile, the vulcanization performance of a rubber material can be improved, the scorching time of the rubber material can be prolonged, the reinforcing effect of vulcanized rubber can be improved, the physical and mechanical properties of the vulcanized rubber can be improved, and the wet skid resistance of tread rubber can be improved; therefore, the environment-friendly rubber auxiliary agent is a multifunctional environment-friendly rubber auxiliary agent.
Owner:SHANDONG YANGGU HUATAI CHEM

Anticorrosive oil and anticorrosive material, and preparation methods therefor and use thereof

PCT designated stage expiredWO2025098157A1Synthetic resin layered productsAdditivesOctadecanoatesPhosphoric acid
The present invention relates to the field of corrosion prevention materials. Disclosed are anticorrosive oil and an anticorrosive material, and preparation methods therefor and the use thereof. The anticorrosive oil contains a monoalkoxy titanate, a dihydroxypropyl octadecanoate, an organosilicon defoaming agent, an antioxidant, modified nano silicon dioxide, nano titanium dioxide, graphene and aluminum tripolyphosphate, wherein the hydroxyl content of the modified nano silicon dioxide is 0.1-0.5 / nm2, and the particle size of the modified nano silicon dioxide satisfies: calculated on the basis that the particle size interval width is 5 nm, the range of particle size having the maximum proportion is 10-15 nm, and the proportion thereof is 45-55 wt%. There are no gaps between the layers of an anticorrosive material formed by means of the anticorrosive oil of the present invention, and the anticorrosive material has good sealing and good corrosion resistance, impact resistance and ultraviolet aging resistance, and can provide long-acting corrosion prevention for ocean steel piles.
Owner:CHINA NAT PETROLEUM CORP +2

Super-hydrophobic activated carbon adsorption material as well as preparation method and application thereof

The invention belongs to the field of functional activated carbon materials, and relates to a super-hydrophobic activated carbon adsorption material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out hydrolytic polymerization reaction on hydroxyl-containing nanoparticles and organosilane in an alkaline water-containing solvent to obtain the super-hydrophobic nanoparticles, and coating the surface of the activated carbon with the super-hydrophobic nano-particles to obtain the super-hydrophobic activated carbon. Wherein the chemical structural formula of the organosilane is as follows: # imgabs0 # R1 is straight chain alkyl of C10-C20, and R2, R3 and R4 are alkoxy or halogen of C1-C5. The super-hydrophobic activated carbon adsorption material provided by the invention not only has excellent super-hydrophobic performance, but also can avoid blockage of pores of activated carbon, has excellent adsorption performance, and can be widely applied to the field of adsorption treatment of volatile organic compounds.
Owner:SHANDONG UNIV +1

Photosensitive surface treating agent, laminate, pattern formation substrate, transistor, pattern forming method and method of producing transistor

PendingUS20250180990A1Group 4/14 element organic compoundsPhotosensitive materialsHydrogen atomHalogen
A photosensitive surface treating agent containing a compound represented by the following Formula (M1). In Formula (M1), R1 is a linear, branched or cyclic alkyl group having 1 to 6 carbon atoms, Y1 is a linear or branched alkylene group having 1 to 4 carbon atoms or a single bond, and the terminal carbon atom of the alkyl group for R1 may be bonded to a carbon atom constituting the alkylene group for Y1, and R1 and Y1 may form a ring. R2 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R3 and R4 are each independently an alkyl group having 1 to 3 carbon atoms, n0 is an integer of 0 or more, and X is a halogen atom or an alkoxy group.
Owner:NIKON CORP

Two-component silicone sealant with long storage period and preparation method thereof

The invention provides a bi-component silicone sealant with a long storage period and a preparation method thereof, and relates to the field of silicone sealant materials. The method comprises the following steps: preparing a component A from alpha, omega-dihydroxy polydimethylsiloxane, dimethyl silicone oil and a filler; the preparation method comprises the following steps: carrying out physical and chemical dual dehydration on alkoxy-terminated 107 glue, a filler and a dehydration material, and then carrying out pretreatment by using ketoxime siloxane to obtain a modified base material; pretreating a cross-linking agent, a coupling agent and a catalyst to obtain a mixed vulcanizing agent; preparing a component B from the improved base material, hydrophobic white carbon black and a mixed vulcanizing agent; the component A and the component B are mixed according to the volume ratio of (1-2): 1, and the two-component silicone sealant is prepared. The two-component silicone sealant disclosed by the invention does not have obvious thickening in a 12-month long-term storage process, can keep stable breaking time and vulcanization effect in a 12-month period of validity, and has very important significance on the scenes such as foreign trade, ocean transportation and the like which require long storage periods.
Owner:GUANGZHOU BAIYUN CHEM IND +1

Amine composition for carbon dioxide separation

To provide a carbon dioxide absorbent composition having high absorption performance and a long lifetime.SOLUTION: A composition comprises: a compound (A) represented by the general formula (1) in the figure [where R1 to R6 each independently represent a hydrogen atom, or an alkyl or alkoxy group having 1 to 4 carbon atoms, and a, b and c each independently represent 0 or 1]; and an antioxidant (B).SELECTED DRAWING: None
Owner:TOSOH CORP

Surface-treated cutting blades demonstrating extended blade edge retention and decreased friction, and methods of reducing deposition of a contaminant on a surface of a metal cutting blade

Surface-treated cutting blades are provided, comprising: (a) a metal cutting blade body; and (b) a self-assembled monolayer formed from an alkoxysilane and / or organophosphonic acid. The surface-treated cutting blades may further comprise one or more layers formed from chrome, tantalum, titanium, an aqueous solution of a metal salt, and / or an organometallic compound, applied between the cutting blade and the self-assembled monolayer. Also provided is a method of reducing deposition of a contaminant on a surface of metal cutting blade, comprising: (a) contacting the surface either directly or through an intermediate organometallic layer with a fluorinated material in a diluent; (b) forming a film on the surface; and (c) exposing the cutting blade to the contaminant.
Owner:ACULON INC

Triarylmethane pigment, coloring composition containing same, colorant for color filter, and color filter

The purpose of the present invention is to provide a triarylmethane pigment having excellent heat resistance and to provide a colorant for a color filter having good color characteristics by using a coloring composition using the triarylmethane pigment because the heat resistance of a conventional triarylmethane pigment is not sufficient. Provided are a triarylmethane dye represented by general formula (1), a coloring composition containing the dye, a colorant for a color filter, and a color filter. In # imgabs0 # formula (1), R1-R5 represent H, an alkyl group, an aromatic hydrocarbon group, or a heterocyclic group, R6-R10 represent H, a halogen atom, OH, CF3, NO2, CN, an alkyl group, or an alkoxy group, R11-R14 represent H, an alkyl group, or an aromatic hydrocarbon group, and at least one of R8 and R12-R14 represents an alkyl group or an aromatic hydrocarbon group. An represents an anion, and m represents a natural number.
Owner:HODOGAYA CHEMICAL CO LTD

Palladium catalyst and preparation method and application thereof

The invention discloses a palladium catalyst as well as a preparation method and application thereof. The structural formula of the palladium catalyst is shown as a formula (I), according to the invention, an alkoxy group is introduced into the skeleton of the palladium catalyst and N-methylimidazole is coordinated with palladium, so that the catalytic yield of the palladium catalyst is effectively improved, and long-chain alkyl polyarylamine with high molecular weight and narrow distribution is obtained; the method does not need to use a traditional phosphine ligand, avoids potential hazards of phosphine compounds to operators and the environment in the use process, and is expected to be industrially applied on a large scale due to the fact that the phosphine compounds are stable to air and moisture and can be stored for a long time.
Owner:CHAIN WALK NEW MATERIAL TECH (GUANGZHOU) CO LTD

Method for catalytically degrading polyester material by using ionic liquid and application

The invention relates to a method for catalytically degrading a polyester material by using an ionic liquid and application of the polyester material, and mainly solves the technical problems of high energy consumption, environment unfriendliness and complex process in polyester material recovery research in the prior art. According to the technical scheme, the novel method for catalytically degrading the polyester material through the ionic liquid comprises the steps that the ionic liquid is used as a catalyst, diol is used as an alcoholysis agent, polyester is catalytically degraded, and the ionic liquid has the following general formula: A + B-(I); in the formula, A < + > is an organic alkali cation, and B <-> is an alkoxy anion, the problem is well solved, and the method can be applied to polyester recovery industry.
Owner:CHANGHUA CHEMICAL TECHNOLOGY CO LTD

Organopolysiloxane and room temperature-curable organopolysiloxane composition containing same

An organopolysiloxane according to the present invention, having a structural unit ratio represented by formula (1), provides a room temperature-curable composition that has excellent curability and stability even when a solvent is not used, and that is capable of producing a cured product having high hardness and high transparency.(R1 and R2 each represent an alkyl group having 1-12 carbon atoms or an aryl group having 6-10 carbon atoms; k represents an integer of 1-3; m represents a number of 5-100; n represents 2 or 3; R3, R4, and R5 each represent an alkyl group having 1-12 carbon atoms, an alkenyl group having 2-8 carbon atoms, an aryl group having 6-10 carbon atoms, an aralkyl group having 7-10 carbon atoms, an alkoxy group having 1-4 carbon atoms, or a hydroxy group; and a, b, c, d, e, and f each represent a number satisfying a>0, b>0, c≥0, d>0, e>0, and f≥0, as well as a+b+c+d+e+f=1.)
Owner:SHIN ETSU CHEMICAL CO LTD

Polycarbonate resin and preparation method thereof

A polycarbonate resin including a unit of Chemical Formula 1 and a unit of Chemical Formula 2, a method for preparing the same, a polycarbonate resin composition including the same, and a molded article are disclosed herein:Ar1 and Ar2 are independently an aryl group, or a heteroaryl group, R1 is hydrogen, deuterium, a halogen group, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, a silyl group, an aryl group, or a heteroaryl group, R2 and R3 are different from each other, r1 is 1 or 2, r2 and r3 are each an integer from 1 to 4, L1 and L2 are independently an arylene group, X1 to X8 are independently O or S, Z1 to Z4 are independently an alkylene group, or a cycloalkylene group, and a, b, c and d are independently an integer from 1 to 10.
Owner:LG CHEM LTD

Composite catalyst and application thereof

PendingCN120098166AArylPolymer science
The invention belongs to the field of polymer synthesis, and particularly discloses a composite catalyst and application thereof. The composite catalyst comprises a main catalyst and a cocatalyst, the chemical formula of the main catalyst is RTiX3, and R is acenaphthenyl and acenaphthenyl containing substituent groups; x is independently selected from any one of a halogen atom, a C1-8 alkyl group, a C2-8 alkenyl group, a C3-8 alkene alkyl group, a C1-8 alkoxy group, an aryl group, a C7-10 aralkyl group and a C7-10 alkaryl group; the co-catalyst comprises an aluminum alkyl catalyst and a silane catalyst. The composite catalyst provided by the invention can significantly improve the conversion rate of styrene, replaces a conventional catalyst system with high aluminum content, and reduces the aluminum content in a styrene polymerization product; the purposes of greatly improving the production efficiency and reducing the production cost are achieved by the post-treatment process of aluminum removal and purification without further solution washing of the styrene polymerization product.
Owner:KINGFA SCI & TECH CO LTD

Benzotriazole organic compound as well as preparation method and application thereof

The invention relates to a benzotriazole organic compound as well as a preparation method and application thereof. The structural general formula of the benzotriazole organic compound is as shown in formula (1): # imgabs0 #, wherein each Ar independently comprises a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; r1 and R2 are respectively and independently selected from substituted or unsubstituted alkyl or substituted or unsubstituted alkoxy; r3 and R4 are respectively and independently selected from halogen, or substituted or unsubstituted alkoxy, or substituted or unsubstituted alkylthio; and R5 is selected from substituted or unsubstituted alkyl. The benzotriazole organic compound can absorb ultraviolet light and convert the ultraviolet light into visible light, is relatively good in stability, can be used as a light conversion agent, is prepared into a photovoltaic adhesive film, is relatively low in water vapor transmittance, is further used for a photovoltaic device, and can improve the efficiency and stability of the photovoltaic device and prolong the service life of the photovoltaic device.
Owner:TRINA SOLAR CO LTD

BIO-based bisphenol monomers, polyphenols and their polymers, a process of preparation and applications thereof

PCT designated stage expiredWO2025074396A1Organic compound preparationHydrocarbonsPolyesterThermoplastic
The present invention relates to bio-based bisphenol monomer of formula I and process of preparation thereof. Specifically, the present invention relates to bio-based bisphenol monomers of formula I containing multiple alkoxyl groups, and polyphenols. The bisphenol monomers of formula I contain built-in methoxyl groups, which represent latent phenolic hydroxyl groups and could conveniently be de-blocked to phenolic hydroxyl groups leading to formation of polyphenols containing catechol / phloroglucinol units with anti-oxidant properties and are potentially useful in various applications like cosmetics, polymer additives and so on. Further, the present invention relates to process of preparation of polymers using bisphenol monomer of formula I as valuable building blocks wherein the high performance thermoplastics are poly(ether sulfone)s, poly(ether ether ketone)s, polyesters, polycarbonates, polyphosphonates, etc. and thermosetting resins are epoxies, cyanate esters, phthalonitriles, propargyl ethers, etc.
Owner:COUNCIL OF SCI & IND RES

Boron-nitrogen compound, preparation method thereof and organic electroluminescent device prepared from boron-nitrogen compound

The invention discloses a boron-nitrogen compound, a preparation method thereof and an organic electroluminescent device prepared from the boron-nitrogen compound. The structural formula of the boron-nitrogen compound is # imgabs0, R1 to R8 are independently one of H, alkyl of C1 to C16, naphthenic base of C3 to C20, aryl of C6 to C30, aryl of C6 to C18 substituted by single or multiple Ra, heteroaryl of 5 to 18 membered and heteroaryl of 5 to 18 membered substituted by single or multiple Ra, and Ra is one of deuterium, fluorine, alkyl of C1 to C12, alkoxy of C1 to C12, naphthenic base of C3 to C12 and aryl of C6 to C14. The electroluminescent device made of the boron-nitrogen compound as a luminescent layer material can realize narrow spectrum emission, the electroluminescent external quantum efficiency of the device exceeds 10%, the service life of the device exceeds 300 h, the luminous efficiency and the stability are greatly improved, and the boron-nitrogen compound is suitable for an OLED (Organic Light Emitting Diode) display.
Owner:SOUTH CHINA UNIV OF TECH

Alkoxysilane-terminated polysiloxane and preparation method thereof

The invention belongs to the technical field of silica gel, and relates to alkoxy silane-terminated polysiloxane and a preparation method thereof, and the alkoxy silane-terminated polysiloxane comprises the following components in parts by weight: (A) 80-100 parts of polysiloxane containing at least one vinyl group in a molecule; (B) 2 to 20 parts of composite hydrogen-containing alkoxy silane; (C) 0.01 to 1 part of catalyst; and (D) 0.1 to 4.5 parts of activated carbon. The alkoxy silane-terminated polysiloxane can be suitable for various formula systems such as moisture curing, addition curing and UV / moisture dual curing of organic silicon products, is particularly suitable for being applied to formula systems which contain powder and have certain thixotropy, and regulates and controls the thixotropic property and the flowing property of the products while keeping certain viscosity.
Owner:YANTAI DARBOND TECH

Persistent liquid foundation and preparation method thereof

The invention relates to the technical field of liquid foundation, and particularly discloses a lasting liquid foundation and a preparation method thereof. The invention discloses a lasting liquid foundation. The liquid foundation is prepared from the following raw materials in percentage by weight: 0.5 to 1 percent of thickener, 10 to 15 percent of first emollient, 2 to 5 percent of emulsifier, 1 to 3 percent of first stabilizer, 3 to 5 percent of acrylic acid (ester) / polytrimethylsiloxane methacrylate copolymer, 3 to 5 percent of trimethylsiloxy silicate ester, 0.5 to 3 percent of adsorbent, 0.05 to 1 percent of antioxidant, 10 to 15 percent of second emollient, 10 to 20 percent of coloring agent, 0.5 to 1 percent of second stabilizer, 1 to 5 percent of humectant, 0.05 to 1 percent of chelating agent, 1 to 10 percent of solvent, 0.5 to 1 percent of preservative and the balance of water. 0.1-1% of a third emollient and the balance of water.
Owner:JOTM DAILY CHEM HANGZHOU CO LTD

Method of making curable thermally conductive composition

PCT designated stageWO2025166614A2PlatinumSilylene
A method of making a curable thermally conductive composition, comprising the steps of: I) preparing an admixture comprising the following components (A1) an alkenyl-functional polyorganosiloxane of formula (I), (A2) a silyl-hydride functional polyorganosiloxane having an average of at least two silicon atom-bonded hydrogen atoms per molecule and free of a silicon atom-bonded alkyloxy group, (A3) a platinum-based hydrosilylation reaction catalyst, (B) from 92 to 97 weight percent of a thermally conductive filler, based on the weight of the curable thermally conductive composition; and (C) a monotrialkoxysiloxy-terminated polydiorganosiloxane of formula (III), where the silyl-hydride functional polyorganosiloxane is present in an amount to provide a molar ratio of silicon atom-bonded hydrogen atoms in the silyl-hydride functional polyorganosiloxane (A2) to alkenyl groups in the alkenyl-functional polyorganosiloxane (A1) in a range of from 0.2 to 0.65; where the monotrialkoxysiloxy-terminated polydiorganosiloxane is present in an amount of from 20 to 80 weight percent, based on the combined weights of components (A1), (A2), (A3), and (C); II) curing the admixture obtained from step I) by heat, thereby forming a pre-cured composite; and III) admixing the pre-cured composite obtained from step II) with (D) a condensation reaction catalyst and (E) a specific alkoxysilane compound of formula (V); thereby obtaining the curable thermally conductive composition.
Owner:DOW SILICONES CORP +5

Organic compound and application thereof

The invention provides an organic compound and application thereof, the boron-containing organic compound has a structure as shown in formula (1), Z1, Z2, Z3, Z4 and Z5 are respectively and independently CR01 or N, ring A and ring D respectively represent ring structures in fused connection, and a dotted line represents a position of an optional fused bond; ring B is fused through positions Z3 and Z4 or Z4 and Z5; the ring A, the ring B and the ring D are respectively and independently selected from one of an unsubstituted or R ''substituted C6-C60 aromatic ring and an unsubstituted or R'' substituted C3-C60 heteroaromatic ring; the ring A and the ring D are not connected or are connected through a chemical bond; r1 and R2 are respectively and independently one of hydrogen, unsubstituted or R ''substituted C1-C20 straight chain or branched chain alkyl, unsubstituted or R'' substituted C3-C20 cycloalkyl, unsubstituted or R ''substituted C4-C20 alkylsilyl, unsubstituted or R'' substituted C1-C20 alkoxy, unsubstituted or R ''substituted C6-C60 aryl, and unsubstituted or R'' substituted C3-C60 heteroaryl; r1 and R2 are not connected into a ring through a chemical bond, and at least one of R1 and R2 is selected from one of unsubstituted or R ''substituted C6-C60 aryl and unsubstituted or R'' substituted C3-C60 heteroaryl; and X is selected from the group consisting of CR11R12, SiR13R14 or N-Ar1. The compound disclosed by the invention has the properties of multiple resonance molecules and conjugated molecules, namely has a narrow fluorescence emission spectrum and high quantum efficiency, and can effectively improve the luminous efficiency and prolong the service life of an organic electroluminescent device when being applied to the organic electroluminescent device. # imgabs0 #
Owner:BEIJING DINGCAI TECHNOLOGY CO LTD

Organic silicon pouring sealant for new energy automobile heater and preparation method of organic silicon pouring sealant

The invention provides an organic silicon pouring sealant for a new energy automobile heater and a preparation method thereof, the organic silicon pouring sealant comprises a component A and a component B, the mass ratio of the component A to the component B is 1: 0.9-1.1; the component A comprises the following components in percentage by mass: 35%-45% of double-end vinyl silicone oil; 3-5% of modified silicone oil; 10%-20% of spherical silica powder; 35-45% of aluminum hydroxide; 0.1%-0.3% of fumed silica; 1%-2% of a molecular sieve; 0.3%-0.5% of a platinum catalyst; 0.1%-0.3% of carbon black; wherein the modified silicone oil is vinyl alkoxy terminated silicone oil. According to the technical scheme provided by the invention, hydroxyl silicone oil is subjected to alkoxy and vinyl end-capping modification, so that the organic silicon pouring sealant can form good bonding sealing with an aluminum alloy matrix and an electronic component when being cured at normal temperature, does not have obvious smell, and is convenient to use.
Owner:CHANGYUAN CHANGTONG SCI & TECH CO LTD

Fluorosilane modified gemini surfactant and preparation method thereof, resistance reducing agent and preparation method thereof, and polymer fracturing fluid

The invention provides a fluorosilane modified gemini surfactant and a preparation method thereof, a resistance reducing agent and a preparation method thereof, and a polymer fracturing fluid. The fluorosilane modified gemini surfactant has a structure as shown in a formula I, wherein R1 is selected from one or a combination of more than two of saturated alkyl, alkylaryl, alkylalkyloxy, alkylacyl and unsaturated alkyl with 1-8 carbons, and R2 is selected from one or a combination of more than two of alkyl, alkylaryl, alkylalkyloxy, alkylacyl and unsaturated alkyl with 1-8 carbons; (CF2) the number of n in n is 1 to 18; x <-> is Br <-> and / or I <->; and R2 is selected from one or a combination of more than two of straight-chain saturated alkyl, branched-chain saturated alkyl, alkylaryl, alkylalkoxy, alkyl ester group and unsaturated alkyl with 1-8 carbons. According to the invention, the fluorosilane modified gemini surfactant is used as a hydrophobic monomer of the resistance reducing agent, so that the synthesized resistance reducing agent has a single-head and double-tail gemini surfactant structure, the tackifying and sand-carrying capabilities are improved, and the surface and interface tension of a gel breaking solution and reservoir rocks is reduced.
Owner:PETROCHINA CO LTD

Process for the production of haloalkoxy(organo)silanes and -siloxanes as well as pseudohaloalkoxy(organo)silanes and -siloxanes

The invention relates to a process for producing a compound of the general formula Iworin, wherein R1 is selected at each occurrence from the group consisting of hydrogen, halogen, pseudohalogen and a group -O-R2, wherein R2 is selected at each occurrence from the group consisting of a substituted or unsubstituted, branched or unbranched alkyl group with 1 to 12 carbon atoms, a substituted or unsubstituted aryl group and a substituted or unsubstituted alkyl aryl group; m is 0 or an integer from 1 to 10; and n is 0 or 1 at each occurrence;with the proviso that at least one of the R1 substituents is a halogen or pseudohalogen and that at least one of the R1 substituents is a -O-R2 group. The process comprises the reaction of a compound of general formula II in which R6 is selected at each occurrence from the group consisting of hydrogen, a group R7 and a -O-R7 group, wherein R7 is selected at each occurrence from the group consisting of a substituted or unsubstituted, branched or unbranched alkyl group with 1 to 12 carbon atoms, a substituted or unsubstituted aryl group and a substituted or unsubstituted alkyl aryl group; m and n having the meanings given in connection with general formula I; with the proviso that at least one of the R6 substituents is a -O-R7 group;with a compound of general formula III, wherein R3 is selected at each occurrence from the group consisting of hydrogen, halogen, pseudohalogen and a residue R4; R4 is selected at each occurrence from the group consisting of a substituted or unsubstituted, branched or unbranched alkyl group with 1 to 12 carbon atoms, a substituted or unsubstituted aryl group and a substituted or unsubstituted alkylaryl group; x is 0 or 1; and y is 0 or 1 at each occurrence; provided that at least one of the residues R3 is a halogen or pseudohalogen; in the presence of a catalyst, wherein the catalyst is an organophosphine.
Owner:TECH UNIV BERGAKADEMIE FREIBERG KORPERSCHAFT DES OFFENTLICHEN RECHTS