448 results about "Alkyl ether" patented technology

The invention provides an active carrier, a supported metallocene catalyst, a preparation method and application. The invention relates to an active carrier, which is used for loading a metallocene compound to form a loaded metallocene catalyst, and comprises a carrier body and an ether-modified aluminoxane compound loaded on the carrier body, the ether-modified aluminoxane compound is modified with at least one of an alkyl ether having an alkyl carbon chain having 10 or more carbon atoms and a crown ether. The aluminoxane compound is modified by ether, so that the usage amount of the aluminoxane compound when the active carrier is used for preparing the supported metallocene catalyst can be reduced, the preparation cost of the supported metallocene catalyst is further reduced, and the supported metallocene catalyst can maintain relatively high catalytic activity.

The invention relates to the technical field of proton exchange membranes, and provides a covalent grafted heteropoly acid modified perfluorosulfonic acid membrane as well as a preparation method and application thereof. According to the invention, polypropylene glycol monoalkyl ether and Keggin type vacancy heteropoly acid are subjected to covalent grafting, and then the obtained covalent grafted heteropoly acid is used as an additive to modify the perfluorosulfonic acid membrane, so that the leakage problem of heteropoly acid in the proton exchange membrane can be effectively relieved, and meanwhile, the excellent proton conduction performance of heteropoly acid is also retained; moreover, the polypropylene glycol monoalkyl ether has relatively large molecular weight, so that the heteropoly acid can be anchored more firmly in the perfluorosulfonic acid membrane, and the proton conduction capability of the heteropoly acid is fully exerted. The result of the embodiment shows that the covalent grafted heteropoly acid modified perfluorosulfonic acid membrane provided by the invention shows excellent proton conduction performance and chemical stability, and has a wide application prospect.

The invention discloses a mesoporous solid acid composite catalyst as well as preparation and application thereof, and particularly relates to a preparation method and application of an acid-functionalized COF polymer and Beta molecular sieve composite catalyst. The solid acid composite catalyst is prepared from an acid functionalized COF polymer and a molecular sieve material through mechanical grinding, and the preparation method is simple and convenient. The solid acid composite catalyst has the advantages of high crystallinity, large specific surface area, rich pore structure, good chemical stability and the like. The prepared composite catalyst is stable in performance and high in activity at low temperature, polyoxymethylene dialkyl ether can be selectively synthesized, and the effect that reaction products do not conform to Schulz-Flory distribution is achieved by adjusting the composition of the composite catalyst.

A concentrated laundry composition premix which is dilutable in water to form a laundry liquid composition, the viscosity which when formed from a dilution of five parts by volume water to one part premix and measured at 25° C. and at 106 s−1 is from 200 to 800 mPa·s., said premix comprising at least 10% wt. water, from 0.1 to 8% wt. ethoxylated polyol ester, and comprising from 5 to 70% wt. surfactant active excluding the ethoxylated polyol ester and where the ethoxylated polyol ester is not sorbeth stearate, wherein the surfactant comprises anionic surfactant and non-ionic surfactant in a weight ratio of from 50:50 to 1:99 and wherein the composition comprises from 0 to 5% wt. alkyl ether sulphate.

The invention relates to the field of fuel, and discloses a fuel composition and application thereof. The fuel composition comprises a basic fuel and functional fuel addition components, the functional fuel addition components comprise polyoxymethylene dialkyl ether, hydrocarbon, a cetane number enhancer and a lubricant, the hydrocarbon is polycyclic hydrocarbon fuel and / or polycyclic hydrocarbon fuel, and the cetane number enhancer is polycyclic hydrocarbon fuel and / or polycyclic hydrocarbon fuel. The lubricant is selected from dibasic acid monoester compounds and fatty acid and / or fatty acid polyol ester; based on the total mass of the functional fuel additive components, the content of the polyoxymethylene dialkyl ether is 1-70% by mass, the content of the hydrocarbon is 15-90% by mass, the content of the cetane number enhancer is 0.005-10% by mass, and the content of the lubricant is 0.001-5% by mass. The composition is suitable for making up the deficiency of polyoxymethylene dimethyl ethers in plateau areas and improving the power and power performance of fuel engines.

The invention provides a high-efficiency foam dedusting agent as well as a preparation method and application thereof. The preparation method of the agent comprises the following steps: (1) mixing and dissolving a surfactant and deionized water according to a certain proportion to obtain a mixed solution A; (2) adding glycerol and propylene glycol into the mixed solution A according to a certain proportion to obtain a mixed solution B, then transferring the mixed solution B into a reaction container, and stirring until all components in the solution are completely and uniformly mixed to obtain a main component C of the foam dedusting agent; and (3) adding sodium dodecyl benzene sulfonate, diethylene glycol monobutyl ether and polyoxyethyl alkyl ether into the main component C according to a certain proportion, and completely dissolving to obtain the efficient foam dedusting agent. The problems of high cost, unstable performance, insufficient foaming amount, short maintenance time, poor anti-freezing performance and the like of a traditional dust removal agent in coal yard dust control are effectively solved by utilizing the synergistic effect of a plurality of auxiliary agents for foaming of the surfactant.

The invention discloses an electrolyte, a secondary battery and a power utilization device, and belongs to the technical field of batteries, the electrolyte comprises a lithium salt, the molecular structure of the lithium salt contains C3-C20 alkyl ether, a sulfonic acid amine group and a fluorine element, the lithium salt has a large dipole moment and a high donor number, meanwhile, the lithium salt can be combined with Li < + >, and the lithium salt can be combined with Li < + >. A solvation structure is formed, solvent decomposition is inhibited, and the fast charging performance and the cycle performance of the secondary battery are remarkably improved.

The invention provides a polyamide elastomer and a preparation method thereof. The method comprises the following steps: (1) under the action of a first catalyst, carrying out condensation polymerization on a poly-diol compound and a binary acid monomer in a solvent to obtain an end-capping reagent; (2) under the action of a second catalyst, an end-capping reagent and a comonomer are subjected to a contact reaction, and a polyamide block is obtained; and (3) in the presence of a stabilizer and under the action of a third catalyst, carrying out contact reaction on the soft segment and the polyamide block to obtain the polyamide elastomer, wherein the polydihydric alcohol compound is polyalkylene ether glycol with the number-average molecular weight of 150-2000, and the stoichiometric ratio of the polydihydric alcohol compound to the binary acid monomer is 1: (2.0-2.4); the comonomer is C4-C12 lactam and / or C4-C12 amino carboxylic acid; and the soft segment is a hydroxyl-terminated diol polymer. According to the invention, the performance loss of the hard-segment-dominated material is not caused on the basis of improving the soft-segment-dominated material mechanical property of the product, and the polyamide elastomer product with excellent comprehensive performance is obtained.

The present invention is directed to a water-soluble granule compositions comprising 1-amino-1-cyclopropanecarboxylic acid (“ACC”), a filler selected from the group consisting of lactose, dextrose, sucrose or a mixture thereof, one or more wetting agents selected from the group consisting of a non-ionic ethoxylated sorbitan, a polyoxyethylene glycol alkyl ether and an anionic dioctyl sulfosuccinate, one or more binders selected from the group consisting of polyvinylpyrrolidone and a lignosulfonate and one or more organosilicon surfactants selected from the group consisting of a polyalkyleneoxide modified heptamethyltrisiloxane and a polyether trisiloxane.

The invention relates to a surfactant comprising a grafted rosin ester which is a rosin ester grafted with a capped polyalkylene glycol, wherein the capped polyalkylene glycol is a polyalkylene glycol capped by an alkyl ether and an aqueous dispersion consisting of an aqueous phase and resin particles dispersed in the aqueous phase, wherein the dispersion comprises the surfactant according to the invention.

The embodiment of the invention provides a method for separating a benzenediol isomer and 5-indanol in a phenol-containing crude product, which comprises the following steps: rectifying the phenol-containing crude product to obtain mixed benzenediol with a distillation range of 240-300 DEG C; the method comprises the following steps: carrying out etherification reaction on mixed benzenediol with the distillation range of 240-300 DEG C obtained by rectifying crude phenol rectification residues by adopting etherification reaction: carrying out etherification reaction on the mixed benzenediol and an etherification reagent under the action of a catalyst, recovering excessive etherification reagent in a reactant after the reaction, and rectifying to obtain etherate; wherein hydroquinone dialkyl ether with the purity not lower than 98% is crystallized and purified by adopting a melt crystallization method or a solvent crystallization method; and / or reducing a part of etherate by using mixed trimethylbenzene and hydrobromic acid to obtain various benzenediol isomers and 5-indanol.

The invention relates to the technical field of concrete admixtures, in particular to polyoxyalkyl ether containing an ester group and a rigid benzene ring structure, an ether retarding type polycarboxylate superplasticizer and a preparation method thereof. The ether retarding type polycarboxylic acid water reducing agent is formed by polymerizing a comonomer under the action of an initiator, a chain transfer agent and an emulsifier, the comonomer comprises polyoxyalkyl ether, polyoxyalkyl ether containing an ester group and a rigid benzene ring structure, an ester monomer and unsaturated acid. The polycarboxylate superplasticizer provided by the invention can effectively improve the initial dispersing performance and slump retaining performance of concrete, improve the strength of the concrete and reduce the sensitivity of the concrete, and has good long-acting slump retaining effect and anti-mud effect. And the polycarboxylic acid water reducer can be prepared through reaction at normal temperature, the reaction condition is mild, and energy is effectively saved.

The invention relates to the technical field of concrete admixtures, in particular to a super-retarding ester polycarboxylic acid water reducer and a preparation method thereof. The super-retarding ester polycarboxylic acid water reducing agent is formed by polymerizing a comonomer under the action of an initiator, a chain transfer agent and an emulsifier, the comonomer comprises an ester macromonomer, polyoxyalkyl ether containing an ester group and a rigid benzene ring structure, an ester micromonomer and unsaturated acid. The super-retarding ester polycarboxylic acid water reducer can effectively improve the initial dispersing performance and slump retaining performance of concrete, improve the strength of the concrete and reduce the sensitivity of the concrete, and has a good long-acting slump retaining effect. And the super-retarding type ester polycarboxylic acid water reducer can be prepared through reaction at normal temperature, the reaction condition is mild, and energy is effectively saved.

Disclosed is a polyurethane containing a structural unit (A) derived from an aromatic compound having an isocyanate group with an average number of functional groups of 2.1 or more and a structural unit (B) derived from a polyalkylene ether glycol. It is possible to provide a polyurethane for a heat storage material having good heat storage properties and heat resistance, excellent moldability, and good shape retainability against heating and cooling, a heat storage material containing the polyurethane, and a heat storage molded body.

The invention relates to an antistatic fiber oiling agent and a preparation method thereof. The antistatic fiber oiling agent is prepared from 4 to 6 parts of nano-silver composite particles, 4 to 6 parts of antistatic composite microspheres, 24 to 28 parts of fatty alcohol-polyoxyethylene ether, 22 to 24 parts of alkyl ether sulfate, 20 to 22 parts of oleic acid oleyl ester, 12 to 16 parts of alkylolamide, 3 to 5 parts of ethoxyamine hydrochloride, 1 to 2 parts of antioxidant and 1 to 2 parts of preservative. The antistatic composite microspheres comprise polyvinyl chloride, maleic anhydride and a solvent. After fibers are treated by the prepared fiber oiling agent, the antistatic performance of the fibers can be improved.

The invention discloses cyclodextrin alkyl ether sulfonic acid as well as a preparation method and application thereof, and relates to the technical field of oil and gas field auxiliaries. The preparation method of the cyclodextrin alkyl ether sulfonic acid comprises the following steps: adding hydroxyl alkyl sulfonic acid into dichloromethane, adding alkali and a sulfonyl chloride reagent, and reacting for 3-5 hours to obtain sulfonate; the preparation method comprises the following steps: adding sulfonate into iodide, adding acetone, reacting for 5-8 hours, and removing excessive iodide after the reaction is finished, so as to obtain iodo-hydrocarbyl sulfonic acid; the preparation method comprises the following steps: dissolving cyclodextrin in tetrahydrofuran, cooling to 0 DEG C, adding alkali under the protection of nitrogen, reacting for 0.5-2 hours, then adding iodo-alkyl sulfonic acid, reacting for 30-60 hours at room temperature, cooling to 0 DEG C, and carrying out reduced pressure distillation to obtain cyclodextrin alkyl ether sulfonic acid; the cyclodextrin alkyl ether sulfonic acid prepared by the invention is used as a cosolvent of the powder resistance-reducing agent, can effectively prevent aggregation among molecules of the powder resistance-reducing agent, improves the dispersity, reduces agglomeration and precipitation phenomena, and meanwhile, can avoid pipeline blockage in a conveying process.

The invention belongs to the technical field of blocking remover preparation, and particularly relates to a chelating blocking remover for an oil field and a preparation method of the chelating blocking remover. According to the chelating blocking remover for the oil field, calcium ions and magnesium ions are removed through the synergistic effect of 1, 2-bis (2-aminophenoxy)-ethane-N, N, N ', N'-tetraacetic acid and the nitrilotriacetic acid disodium salt, aluminum ions and iron ions are removed through the synergistic effect of 1, 2-dimethyl-3-hydroxy-4-pyridone and the N, N '-ethylenediamine disuccinic acid, and the chelating blocking remover for the oil field has the advantages that the chelating blocking remover for the oil field is environmentally friendly and free of pollution. According to the present invention, potassium dihydrogen phosphate is adopted as a stabilizer, and polyoxyethylene lauryl ether sodium sulfate and sodium ricinoleate are added so as to improve the mixed scale removing effect by changing the rock surface wettability, promoting crude oil stripping and interacting with other raw materials. Due to the synergistic effect of the raw materials, the prepared chelating agent for the oil field has a very good corrosion rate on inorganic scales.

The invention belongs to the technical field of optical adhesives, and particularly relates to a high-refractive-index dual-curing adhesive as well as a preparation method and application thereof. The high-refractive-index dual-curing adhesive comprises a component A, a component B and a component C, wherein the component A comprises 40-80 parts of epoxy resin, 10-40 parts of first acrylic ester and 15-30 parts of first inorganic filler; the component B is prepared from 20 to 50 parts of second acrylic ester, 30 to 80 parts of second inorganic filler and 5 to 20 parts of curing agent; wherein the first acrylate at least comprises a (methyl) acrylate monomer containing one or more reactive groups, and the reactive groups are selected from hydroxyl, epoxy or carboxyl; the second acrylic ester is selected from any one or a combination of more of a (methyl) acrylic acid aryl ester monomer, a (methyl) acrylic acid alkyl ester monomer or a (methyl) acrylic acid alkyl ether ester monomer. The curing adhesive is a high-refractive-index optical adhesive which is stable in system and excellent in performance after being cured to form a film.

The invention relates to a method for manufacturing a wash-off label (2) comprising a face (1) and a pressure sensitive adhesive layer (4), wherein the face (1) comprises a thermoplastic film, and the method comprises applying an acrylic adhesive onto a first surface of the face (1), wherein the acrylic adhesive comprises a wash-off additive, the wash-off additive comprising are sinous material, and a grafted rosin ester which is a rosin ester grafted with a capped polyalkylene glycol, wherein the capped polyalkylene glycol is apolyalky lene glycol end-capped by an alkyl ether, and drying the acrylic adhesive in order to form an acrylic pressure sensitive adhesive onto the first surface of the face (1), thereby obtaining the wash-off label (2). The invention further relates to a wash-off label.

The present disclosure relates to an aqueous inkjet ink including pigment particles, a surfactant, and an organic solvent, wherein: the pigment particles include a pigment and a pigment dispersion resin; the pigment dispersion resin has a crosslinked structure; the surfactant includes an acetylenediol-based surfactant (A-1) having an actually measured HLB value of 6-9 and a siloxane-based surfactant (A-2) having an actually measured HLB value of 8-14; and the organic solvent includes an alkanediol having 5-8 carbon atoms (but excluding 1,2-alkanediol having 5-8 carbon atoms) and / or a (di)propylene glycol monoalkyl ether represented by a specific structural formula.

The present invention has an object of obtaining an electrically peelable adhesive product that is strong in adhesibility when used, is excellent in peelability even though a low voltage is applied, and does not leave much adhesive deposit after being peeled. The present invention achieves the above object by virtue of an electrically peelable adhesive composition contained in the adhesive product, the adhesive composition comprising an acrylic polymer, an ionic liquid having an ionic conductivity of 10−4 S / cm or more to 10−2 S / cm or less, and an alkyl ether of a polyethylene glycol, and containing 5 parts by weight or more to 30 parts by weight or less of the ionic liquid and of the alkyl ether of the polyethylene glycol with respect to 100 parts by weight of the acrylic polymer.

The invention belongs to the technical field of materials, and particularly relates to an optical adhesive composition as well as a preparation method and application thereof. In the optical adhesive composition, a component A comprises 10 wt%-60 wt% of acrylic resin A, 20 wt%-70 wt% of a first inorganic filler and 0 wt%-20 wt% of a functional aid; the component B comprises 20 wt%-50 wt% of acrylate B, 30 wt%-70 wt% of a second inorganic filler, 1 wt%-25 wt% of a curing agent and 0 wt%-3 wt% of a functional aid; the acrylic resin A at least contains alkyl (meth) acrylate, alkyl ether (meth) acrylate or aryl (meth) acrylate containing one or more reactive groups, and the reactive groups are selected from any one or more of hydroxyl, epoxy or carboxyl. After the optical adhesive composition disclosed by the invention is completely cured and reacted, an adhesive layer has the properties of compact crosslinking density, good water-oxygen barrier property, high temperature resistance and the like.

The invention discloses an alkyl ether ester ionizable lipid compound and application thereof. The alkyl ether ionizable lipid compound is composed of a head group R1, a linker L and a tail group R2 in sequence. According to the alkyl ether ionizable lipid disclosed by the invention, two tertiary amine centers are connected by adopting a cyclic carbon chain structure, so that the delivery effect is obviously higher than that of ionizable lipid linearly connected with the two tertiary amine centers, and by adding an ether bond-containing tail structure in the alkyl ether ionizable lipid, the cell endocytosis and the cell endosome escape effect of LNP are improved; therefore, more mRNA is delivered into a living body and translated and expressed into corresponding proteins. Therefore, compared with the ionizable lipid in the prior art, the alkyl ether ionizable lipid disclosed by the invention has a better delivery effect.

Provided is a composition for removing keratosuppository, which has an excellent keratosuppository removal effect and an excellent feeling of use. A composition for removing a keratotic plug according to the present invention contains (A) an alkanolamine compound such as a trialkanolamine, (B) an alkylene oxide derivative such as a polyoxyethylene-polyoxypropylene addition alkyl ether, and (C) water.

Provided is an aqueous inkjet ink which has favorable followability relative to deformation such as the shrinking of shrink films, can produce printed items with no bleeding, and also has favorable jetting stability. The aqueous inkjet ink for shrink film contains an organic solvent, a surfactant, and a resin, wherein the organic solvent includes an organic solvent (A-1) having an SP value within a range from 11 to 13.5 (cal / cm3)1 / 2 and having at least one hydroxyl group in an amount within a range from 5 to 30% by mass of the total mass of the aqueous inkjet ink, the surfactant includes a surfactant (B-1) composed of at least one surfactant selected from the group consisting of acetylenediol-based surfactants and polyoxyalkylene alkyl ether-based surfactants, and the weighted average value of the SP values of the resin and the surfactant is within a range from 9 to 11.5 (cal / cm3)1 / 2.

A hard surface cleaning composition comprising: (a) 0.1 to 60 wt % of a surfactant system; (b) 0.1 to 40 wt % of a solvent, wherein the solvent is selected from the group consisting of a lower alkanol, a benzyl alcohol, a lower alkyl ether, a glycol, an aryl glycol ether, a lower alkyl glycol ether, a glycerol ketal, an ester, a hydrocarbon / ester blend, a dibasic ester, a linear alcohol ethoxylate, a branched alcohol, oxo alcohol ethoxylate, and combinations thereof; and (c) optionally 0.001 to 10 wt % of a lipase.

The invention relates to the technical field of lubricating oil, and particularly discloses graphene water-based rapier loom gear oil and a preparation method thereof. The graphene water-based rapier loom gear oil provided by the invention is prepared from the following components in parts by weight: 967 to 992 parts of water-soluble polyether polyol, 10 to 15 parts of silicon dioxide, 5 to 8 parts of phosphorus-containing modified graphene oxide, 1 to 5 parts of an anti-wear agent, 1 to 5 parts of an antioxidant and anti-gum agent and 1 to 3 parts of an anti-rust agent, the water-soluble polyether polyol is selected from one or more of polyethylene glycol, polypropylene glycol, an ethylene oxide-propylene oxide copolymer and allyl alcohol polyoxyalkyl ether; furthermore, the silicon dioxide is a mixture of silicon dioxide with the particle size of 10-15 microns, silicon dioxide with the particle size of 300-500 nm and silicon dioxide with the particle size of 50-100 nm. The graphene water-based rapier loom gear oil provided by the invention has very good viscosity-temperature characteristics and extreme pressure wear resistance, and can ensure the operation stability of rapier loom equipment under an extreme pressure condition.

To provide a solid fuel which does not solidify during heating and mixing, can be suitably prepared, and can sufficiently maintain its shape during combustion.SOLUTION: The solid fuel contains at least one compound (A) selected from the group consisting of a polyalkylene glycol having a ≤ 4 c alkylene group, an alkyl ether of a (poly) alkylene glycol having a ≤ 4 c alkylene group and an aryl ether of a (poly) alkylene glycol having a ≤ 4 c alkylene group.SELECTED DRAWING: None

A method for producing a (poly)alkylene glycol monoalkyl ether includes reacting an olefin and a (poly)alkylene glycol in a reactor in a presence of a catalyst. The method also includes recovering at least a portion of raw materials used for the production to use the recovered raw materials again as a raw material, where at least one of the recovered raw materials contains an olefin. A mass of a branched olefin relative to a mass sum of the branched olefin and a linear olefin contained in the recovered raw materials is controlled not to exceed 20 mass %.

The present invention relates to novel ligands of formula 1, wherein R1 is each substituted or unsubstituted alkyl, perfluoroalkyl, aryl or cycloalkyl; a cyano group; a sulfonyl-SO2-R10 wherein R10 = a C1-C5 alkyl group, a C5-C6 cycloalkyl group, a C5-C10 aryl group, each unsubstituted or substituted by a C1-C4 alkyl group or a C1-C4 perfluoroalkyl group; silyl-Si (R20R30R40), wherein R20, R30 and R40 are, independently of each other, a C1-C6 alkyl group or a C5-C10 aryl group, which are each unsubstituted or substituted by a C1-C4 alkyl group; r2 is each substituted or unsubstituted alkyl, cycloalkyl, adamantyl or aryl; r3, R4 and R5 are each alkyl, cycloalkyl or aryl, which may be unsubstituted or substituted; or at least two of R3, R4 and R5 are alkyl or alkyl ether bridges and form a heterocyclic ring together with the phosphorus atom, or wherein R3 and R6 and / or R4 and R7 and / or R5 and R8 form an alkyl or alkyl ether bridge together with the nitrogen atom to which it is attached form a heterocyclic ring; r6, R7 and R8 are alkyl or aryl, which may be unsubstituted or substituted, or form a heterocyclic ring, alone or together, with R3, R4 or R5 and the nitrogen atom to which it is attached; m, n and o are 0 or 1, with the proviso that at least one of m, n and o is 1, metal complexes thereof and use for catalytic purposes. # imgabs0 #