274 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 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 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.

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 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 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 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.

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.

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 #

The present invention provides an aqueous polyamide resin dispersion that does not require the removal of organic solvents and exhibits excellent storage stability, adhesion to PET and OPP substrates, ejection stability when used as an inkjet ink, and abrasion resistance of printed materials. [Solution] A polyamide resin aqueous dispersion containing a polyamide resin (A) and a surfactant (B), wherein the total amine value of the polyamide resin (A) is less than the acid value of the polyamide resin (A), the total amine value of the polyamide resin (A) is 0.5 to 10 mg KOH / g, the surfactant (B) contains a polyoxyalkylene alkyl ether, and the content of the surfactant (B) is 9 to 35% by weight based on the total weight of (A) and (B).

The present invention addresses the problem of providing an acidic cleaning solution for an aluminum-based metallic material, the acidic cleaning solution being capable of suppressing foaming while achieving favorable cleaning properties. One embodiment for solving the aforementioned problem is an acidic cleaning solution for an aluminum-based metallic material that comprises 0.01-25 g / L of at least one inorganic acid selected from the group consisting of sulfuric acid, nitric acid, nitrous acid, and phosphoric acid; 0.05-4.0 g / L of trivalent iron ions; and 0.1-10 g / L of a surfactant, wherein the surfactant includes a surfactant A: a polyoxyalkylene alkyl ether having a cloud point of 80°C or more, a surfactant B: a polyoxyalkylene alkyl ether having a cloud point of 50-60°C, and a surfactant C: a polyoxyalkylene alkyl ether having a cloud point of 40°C or less, and wherein the cloud point is measured in accordance with JIS K 3211: 1990.

The invention discloses a supported catalyst and a preparation method thereof and a synthesis method of N-alkoxyalkyl-2,6-dialkylaniline. The supported catalyst is used to catalyze the synthesis of N-alkoxyalkyl-2,6-dialkylaniline. The supported catalyst includes an active component and a carrier. The active component is a mixture of Ni, Cu, Fe, Zr, Co, Cr, Ga, Ge, In, Mn, Zn, Ag, La, Ce, Er metal oxide or any two or more metal oxides, and the carrier includes aluminum oxide. The supported catalyst of the present invention is used to catalyze the reaction of alkyl glycol alkyl ether and 2,6-dialkylaniline to prepare N-alkoxyalkyl-2,6-dialkylaniline. The reaction does not require any solvent, thereby achieving the green synthesis of N-alkoxyalkyl-2,6-dialkylaniline, with the advantages of high reactivity and selectivity, low production cost, and no generation of "three wastes" pollutants.

To provide an acidic cleaning solution for aluminum-based metal materials that can achieve desirable cleaning properties while suppressing foaming. [Solution] An acidic cleaning solution for aluminum-based metal materials comprising: 0.01 g / L to 25 g / L of at least one inorganic acid selected from the group consisting of sulfuric acid, nitric acid, nitrite, and phosphoric acid; 0.05 g / L to 4.0 g / L of trivalent iron ions; and 0.1 g / L to 10 g / L of a surfactant, wherein the surfactant comprises: surfactant A: a polyoxyalkylene alkyl ether with a cloud point of 80°C or higher; surfactant B: a polyoxyalkylene alkyl ether with a cloud point of 50°C to 60°C; and surfactant C: a polyoxyalkylene alkyl ether with a cloud point of 40°C or lower.

This application relates to a denim washing anti-staining agent and its application, belonging to the field of dyeing and printing auxiliaries technology. The anti-staining agent is composed of the following components in parts by weight: 5-15 parts of polymeric dispersant, 5-10 parts of anionic dispersant, 3-5 parts of isomeric tridecyl alcohol polyoxyalkylene ether, 3-5 parts of fatty amine polyoxyethylene ether, 0.5-2 parts of polyether defoamer, with the balance being water. This application endows the product with excellent immediate anti-staining ability and outstanding continuous processing stability, and is suitable for the cellulase washing process of denim.

A temporary protective film for semiconductor sealing molding, which has a support film and an adhesive layer, and is used for temporarily protecting a face of a lead frame on the opposite side of a semiconductor element during sealing molding of forming a sealing layer that seals the semiconductor element mounted on a chip pad of the lead frame. The adhesive layer contains: a thermoplastic resin; and at least one specific compound selected from the group consisting of sorbitol polyglycidyl ether, polyethylene glycol diglycidyl ether, glycidyl ether of an aliphatic alcohol having 10 to 20 carbon atoms, glycerol polyglycidyl ether, polyalkylene glycol ester of a fatty acid having 2 to 30 carbon atoms, dipentaerythritol ester of a fatty acid having 2 to 20 carbon atoms, polyethylene glycol monoalkyl ether, and polyethylene glycol dialkyl ether.

To provide a water-based flexographic ink capable of obtaining a printed matter having good storage stability and good leveling property and blocking resistance and a laminate having good laminate strength.SOLUTION: There is provided a water-based flexographic ink comprising a pigment, an aqueous urethane resin and / or an aqueous acrylic urethane resin, water and an organic solvent, wherein the organic solvent includes two or more alcohol solvents (A) having different boiling points, the alcohol solvents (A) includes an alcohol solvent (a1) which is a glycol monoalkyl ether having a boiling point of 115 to 180°C and an alcohol solvent (a2) having a boiling point lower than the boiling point of the alcohol solvent (a1) and the water-based flexographic ink contains 0.5 to 9.5 mass% of the alcohol solvent (a1) and 0.5 to 8.5 mass% of the alcohol solvent (a2) in the total mass of the water-based flexographic ink and has a surface tension of 28 to 35 mN / m.SELECTED DRAWING: None

The invention discloses a preparation method of a low-pore-number composite lining, and belongs to the technical field of textiles. The preparation method of the low-hole-number composite lining comprises the following steps: (1) weaving polyester yarns into gray fabric; (2) shaping and preshrinking the gray fabric; (3) dyeing the set and pre-shrunk gray fabric; (4) shaping and finishing the dyed gray fabric to obtain a composite lining; wherein the dye for dyeing is obtained by reacting N-amino-4-N, N-dimethyl-1, 8-naphthalimide with ferrocene dicarboxaldehyde, and the dye for dyeing is obtained by reacting N-amino-4-N, N-dimethyl-1, 8-naphthalimide with ferrocene The setting agent for setting and finishing contains a hydrophilic softening agent, the hydrophilic softening agent is obtained by mixing polyether phenyl silicone oil with a compound emulsifier and deionized water, and the polyether phenyl silicone oil is obtained by reacting side chain hydrogen-containing silicone oil, allyl alcohol polyoxyalkyl ether, vinyltriethoxysilane and 1-(4-vinyl-phenyl)-ethanone; the prepared low-hole-number composite lining is good in hydrophilicity, color fastness and softness.

A high molecular weight polymeric dispersant composition is described. The dispersant is represented by the general structure: wherein A is an olefin copolymer, B is an alkylimide or alkylamide, C is a polyamine, alkylamine, alkylether amine or alkylhydroxylamine, and D is 1-(arene-2-yloxy) propan-2-ol; and n is 1 to 15.

The present invention provides a method for preparing recycled polymers, the method comprising: (S1) a step for supplying cycloalkyl alkyl ether as a solvent to both a dissolution tank and a precipitation tank; (S2) a step for supplying a composite resin to the dissolution tank and then heating to a dissolution temperature, and dissolving a polymer included in the composite resin while maintaining the dissolution tank at the dissolution temperature to obtain a polymer solution; (S3) a step for supplying the polymer solution to the precipitation tank, in which the solvent is maintained at the precipitation temperature, and precipitating the polymer included in the polymer solution to obtain a solution including a polymer precipitate; and (S4) a step for filtering the solution containing the polymer precipitate to obtain the polymer precipitate.

The present invention relates to a hair detergent composition or a fiber detergent composition for head ornament products that has excellent low-temperature stability, as well as good foaming during washing, foam creaminess, and smoothness during rinsing.　Namely, the present invention provides a hair detergent composition or a fiber detergent composition for head ornament products that includes the following components (A) to (D): (A) an alkyl glucoside; (B) a sulfonic acid-based anionic surfactant including an acyl taurine salt; (C) an alkyl ether carboxylic acid or a salt thereof; and (D) an amphoteric surfactant, wherein the included quantity of the component (A) is 2.0 mass% or more, and the included quantity of the acyl taurine salt in the component (B) is 25 mass% or more.

An adhesive composition is described herein. More particularly, an adhesive composition with a hydrophilic adhesive, a hydrophobic adhesive, at least one surfactant, and at least one plasticizer. Specifically, the adhesive is a blend of a continuous phase hydrophilic adhesive, a dispersed phase hydrophobic adhesive, at least one surfactant, at least one plasticizer selected from the group consisting of fatty alcohol ethoxylates, tristyrylphenol ethoxylates, alkyl ether sulfates, sulfosuccinate esters, polysorbates, glycerides and combinations thereof and wherein a weight ratio of the hydrophilic adhesive to the plasticizer is between about 1:4 and about 4:1.

This invention relates to a collector agent in the flotation of lead, zinc and optionally copper comprising S-alkyl-4,5-dihydro thiazole (Formula la) or N-alkyl-2- thiazolidinethione (Formula lb) or a mixture thereof wherein R1 is a C1 to C18 alkyl, C2 to C18 alkenyl, C3 to Cw cycloalkyl, C6 to C18 aryl or an alkyl ether group of the formula -(CH2)nOCH3, where n is a number from 1 to 18, such group optionally being substituted.

The invention discloses a fluorescent pigment compound as well as a preparation method and application thereof. The chemical structural formula of the fluorescent pigment compound is shown in the specification. Wherein n is an integer from 2 to 6, and R1 and R2 are respectively and independently selected from C1-C3 alkyl groups. By introducing 4-tert-butylphenyl and tert-butylsilane ether chains, the compound has excellent solubility, film-forming property, high fluorescence quantum yield (gt, 95%) and light stability (retention rate gt, 90% after ultraviolet irradiation for 500 hours). The preparation method is simple, is suitable for a solution processing technology, and can be widely applied to the fields of OLEDs, light conversion adhesive films, fluorescence sensing, biological imaging and the like.

The present invention relates to a reed diffuser comprising one or more reeds formed from a mixture of polybutylene adipate terephthalate (PBAT) and polylactic acid (PLA), dipped into a composition comprising: (a) a perfuming or deodorising substance; and (b) a solvent system comprising at least one glycol ether selected from linear or branched C1-C8 alkyl ethers and di- or trialkyleneglycols, the alkylene group of which is selected from ethylene and propylene groups, and also their acetates. It also relates to the use of this diffuser for perfuming or deodorising the atmosphere or a substrate such as the body and / or a textile.

The present invention relates to a glass transition material for a circulating fluidized bed (CFB) and its preparation and use methods, belonging to the technical field of comprehensive utilization of CFB fly ash. The glass transition material is prepared from 85-100 parts by weight of manganese monoxide, 5-30 parts by weight of niobium nitride, 5-15 parts by weight of polyoxyethylene lauryl ether, and 15-40 parts by weight of water. During preparation, polyoxyethylene lauryl ether and water are first mixed, followed by the addition of manganese monoxide and niobium nitride, and vigorous stirring in a blender. The present invention utilizes polyoxyethylene lauryl ether to uniformly disperse manganese monoxide and niobium nitride in a coal sample. The mineralization effect of manganese monoxide and niobium nitride reduces the liquid phase formation temperature and liquid phase viscosity, increases the liquid phase ratio, and promotes the glass transition of CFB fly ash. Furthermore, nitrogen generated by the high temperature of niobium nitride creates pores, increasing the content of hollow microspheres in the CFB fly ash.

Improves releasability to metals, antistatic properties, and adhesion to resins. [Solution] The photocurable resin composition for coating according to the embodiment contains a urethane (meth)acrylate (A) containing a structure derived from an isocyanurate of hexamethylene diisocyanate, a (meth)acrylamide monomer (B), and a polyoxyalkylene alkyl ether phosphate ester (C). A coating film according to the embodiment is obtained using the photocurable resin composition for coating.