162 results about "Alkyl ether" patented technology

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 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 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.

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 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.

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.

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.

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 invention discloses an aluminum electrolytic capacitor for automotive electronics and a preparation method of the aluminum electrolytic capacitor. The capacitor comprises a core package formed by winding an anode foil, a cathode foil and electrolytic paper, and an electrolyte impregnated in the core package. The electrolyte comprises a solvent, a solute and an additive, the solvent contains ethylene glycol monoalkyl ether, and the additive contains phosphotungstic acid. The preparation method comprises the steps of riveting, element winding, drying treatment, electrolyte impregnation, packaging, aging and the like, wherein the impregnation rate is controlled to be 1.31-1.51 in the electrolyte impregnation step. Through the optimized electrolyte formula and strict process control, the high-frequency ESR of the capacitor is remarkably reduced, the hydration corrosion of an anode oxide film is effectively inhibited, the high-temperature resistance and the mechanical vibration reliability are improved, and the harsh application requirements in the field of automotive electronics are completely met.

The invention relates to a synthesis process for co-production of p-hydroxyanisole and o-hydroxyanisole, anisole and hydrogen peroxide are used as raw materials, and under the action of a catalyst and an auxiliary agent, the content of p-hydroxyanisole and o-hydroxyanisole can be adjusted. The additive is prepared by taking benzothiophene as a raw material through alkyl ether, ethynylation and ring closing reaction, has certain solvent effect and limiting effect, and can change the proportion of p-hydroxyanisole to o-hydroxyanisole in a product.

The present invention is to address the problem of providing an electrically peelable adhesive product having excellent electrical peelability even under conditions where the adhesive product is exposed to high temperature conditions over a long period of time. The problem is solved by an electrically peelable adhesive composition comprising an acrylic polymer, an ionic liquid and an alkyl ether of a polyethylene glycol, wherein a content of the ionic liquid is more than 30 parts by weight and 90 parts by weight or less relative to 100 parts by weight of the acrylic polymer and a content of the alkyl ether of the polyethylene glycol is 5 parts by weight to 45 parts by weight relative to 100 parts by weight of the acrylic polymer.

The invention discloses a symmetric dipeptide supramolecular monomer based on bipyridine as well as a preparation method and application of the symmetric dipeptide supramolecular monomer based on bipyridine, and the symmetric dipeptide supramolecular monomer based on bipyridine is formed by connecting glycine-alanine dipeptide and chain alkoxy ether or dendronized alkoxy ether to bipyridine by taking bipyridine as a skeleton, and carrying out self-assembly in an aqueous solution to form the supramolecular polymer. The supramolecular polymer can realize polypeptide supramolecular self-assembly and dynamic regulation and control of supramolecular chirality through coordination and de-coordination with different metal ions, and also can realize adjustment of the average particle size of an assembly system through structural change of metal ion coordination so as to change the fluorescence property of the assembly system; meanwhile, the reversible temperature-sensitive phenomenon of the assembly in an aqueous solution is realized by adjusting the dendronized alkoxy ether, and the influence of temperature response on the chirality of the assembly is investigated.

The present invention relates to an aqueous foaming cleaning composition for removing soils at low temperature from surfaces to be cleaned, characterized in that the aqueous foaming cleaning composition comprises: linear and / or branched C 12 alkyl dimethyl amine oxide or C 12 alkyl diethyl amine oxide or C 12 alkyl methyl ethyl amine oxide; at least one anionic surfactant of the following: dodecyl (oxyethylene) 14 alkyl dimethyl amine oxide or C 14 alkyl diethyl amine oxide or C 14 alkyl methyl ethyl amine oxide; at least one anionic surfactant of the following: dodecyl (oxyethylene) w sulfate, wherein w represents the average number of addition moles ranging from about 1 to 10, and / or at least one polyoxyalkylene alkyl ether carboxylic acid or salt thereof represented by formula (I): RO-(AO) n‑1 -A'-COO m M(I) wherein R represents a linear and / or branched alkyl group having from about 8 to 18 carbon atoms; AO represents an alkyleneoxy group having from about 2 to 4 carbon atoms; n represents the average number of addition moles ranging from about 1 to 20; A' represents an alkylene group having from about 1 to 3 carbon atoms; M represents H or a cation; and m represents a number equal to the valence of M; - a basic source; and - water.

To provide a liquid cleaning agent composition for hard surfaces that exhibits excellent retention properties and suppression of dispensing failures. [Solution] A liquid cleaning agent composition for hard surfaces containing (A) component: an alkyl polyglucoside represented by the following general formula (A), (B) component: a polyoxyalkylene alkyl ether represented by the following general formula (B), and (C) component: one or more compounds selected from terpene compounds and carboxylic acid esters. a1 -O-[G] a ...(A) [In formula (A), R a1 is an alkyl group with 8 to 20 carbon atoms, G is a residue derived from a reducing sugar, and a is a number between 1 and 5 on average. ], R b1 -O-(AO) b -H...(B) [In formula (B), R b1 is an aliphatic hydrocarbon group with 8 to 18 carbon atoms, AO is an alkylene oxy group, and b is a number representing the average number of repeats of AO, ranging from 31 to 70.

Provided are: a liquid crystal polyester that provides a molded film that has a small coefficient of linear expansion in the thickness direction and a small difference in coefficient of linear expansion between the in-plane direction and the thickness direction, and that does not impair excellent low dielectric properties in a high-frequency region; a film obtained by molding the liquid crystal polyester; and a metal-clad laminate provided with the film. A liquid crystal polyester is used in which a linear polyester containing at least one structural unit (A) selected from the group consisting of aromatic oxycarbonyl units, aromatic dioxy units, and aromatic dicarboxyl units is linked by means of a crosslinkable group (B) introduced into the main chain of the structural unit (A). The cross-linkable group (B) is a group derived from a compound having at least two hydroxymethyl groups attached to an aromatic ring having an electron-donating substituent, or a group derived from a compound having at least two hydroxymethyl groups attached to a nitrogen atom, the hydroxymethyl groups optionally being etherified by an alkyl group, and the content of the cross-linkable group (B) is less than or equal to 100 mol% of the structural unit (A). The content of the crosslinkable group (B) is more than 0 mol% and 4.0 mol% or less.

To provide a grease composition that can impart good conductivity. [Solution] The grease composition according to the present invention is characterized by comprising a base grease containing a base oil and a thickener, and a nonionic surfactant having an HLB value of 10 to 15. The nonionic surfactant is preferably of the alkyl ether or ester type hydrophobic group. Furthermore, the content of the nonionic surfactant is preferably in the range of 0.1% to 10% by mass relative to the total amount of the composition. Moreover, this conductive grease composition is suitable for use in bearings.

The invention provides a high-stability defoaming agent and a preparation method thereof, and belongs to the technical field of defoaming agents. The defoaming agent is prepared from 40 to 60 parts of polyether modified organic silicon, 130 to 170 parts of branched polyether ester, 270 to 330 parts of silicon factice, 14 to 18 parts of other auxiliary agents and 430 to 530 parts of water; the polyether modified organic silicon is obtained by carrying out hydrosilylation reaction on allyl polyoxyalkyl ether and hydrogen-containing silicone oil under the catalysis of chloroplatinic acid; the allyl polyoxyalkyl ether is prepared by carrying out polymerization reaction on allyl alcohol and alkylene oxide; the branched polyether ester is obtained by carrying out esterification reaction on branched polyoxyalkyl ether and fatty acid under the action of an acid catalyst; and the branched polyoxyalkyl ether is prepared by carrying out polymerization reaction on polyfunctional polyol and alkylene oxide. The defoaming agent disclosed by the invention is stable in storage at a high temperature, can maintain a good defoaming speed in a strong acid and alkali environment, and can maintain relatively strong foam inhibition activity.

The invention discloses a method for preparing vinyl alkyl ether from ethylene oxide through ethylene glycol monoalkyl ether. The ethylene glycol monoalkyl ether prepared through ring opening etherification of ethylene oxide and alcohol is further subjected to a gas-phase dehydration reaction, and a reaction product is subjected to fractional refining to obtain the vinyl alkyl ether. According to the method, bulk chemicals ethylene oxide and alcohol are used as raw materials, two-step reaction of novel solid acid catalytic addition etherification and novel solid base catalytic dehydration is adopted, ethylene glycol monoalkyl ether and vinyl alkyl ether compounds with high additional value are prepared, the raw materials are low in price and easy to obtain, the product yield is high, the production cost is low, the application range is wide, and the development potential is large; a catalytic reaction process and a grading refining process are adopted, the process is efficient, safe and environment-friendly, and the device can be large-scale; the product scheme is flexible, and a series of ethylene glycol monoalkyl ether and vinyl alkyl ether products can be produced by switching the raw material alcohol.

The present invention refers to a liposome comprising: a) a phospholipid; b) cholesterol (chol); c) a conjugate comprising a cholesterol moiety, a polyethylene glycol (PEG) moiety and a peptide moiety comprising a RGD sequence, wherein the PEG moiety is covalently attached to the cholesterol moiety by one end via a bond of the type alkyl ether and is covalently attached to the peptide moiety comprising the RGD sequence by the other end: d) a non-lipid cationic surfactant present in a percentage of less than 30% mol in respect to the total mol of the components of the liposome a), b), c) and d); and e) alpha-galactosidase (GLA) enzyme present in a ratio of micrograms of GLA in respect to the total milligrams of the components of the liposome a), b), c) and d) of between and including 2 to 35.

Providing a cosmetic that is not sticky, has excellent skin affinity, and has a smooth feeling. 【Solution means】The cosmetic according to the present disclosure contains (A) 0.1% by mass to 5% by mass of a glycine derivative represented by formula (1) or a salt thereof, (B) niacin or a derivative thereof, (C) a higher alcohol having 14 to 22 carbon atoms, (D) a hydrophilic polyoxyethylene alkyl ether, and (E) a glycerin monoalkyl ether. TIFF2026105749000006.tif43169 (In the formula, R 1 and R 2 each independently represents H, an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an aminomethylcarbonyl group, an amidino group, an alkylcarbonyl group, an alkenylcarbonyl group, etc., and R 3 represents H, an alkyl group, an alkenyl group, an aryl group, or an aralkyl group. However, R 1 , R 2 , R 3 do not simultaneously become H.)

The present invention provides an oil-in-water emulsion cosmetic having excellent stability against temperature changes. An oil-in-water emulsion cosmetic solving the problem of the present invention is characterized by containing the following components (A) to (E): (A) one or two or more selected from the group consisting of a copolymer of (meth)acrylic acid or an alkyl (meth)acrylate and a polyoxyethylene monoalkyl ether (meth)acrylate, and a copolymer or salt thereof containing acryloyldimethyltaurine as a structural unit, (B) a branched polysaccharide, (C) one or two or more selected from the group consisting of ester oil, hydrocarbon oil, and higher alcohol, which is liquid at 25°C, (D) a hydrophobic-treated metal oxide of 7 mass% or more and 25 mass% or less, and (E) one or two or more selected from the group consisting of an acrylic acid-silicone graft copolymer, polyhydroxystearic acid, and a polyglycerin alkyl co-modified silicone.

The application discloses a kind of metallocene catalyst system, polyisobutylene and preparation method thereof.The metallocene catalyst system includes A, B, C, D four components;Component A is metallocene complex;Component B is borate;Component C is alkyl aluminum;Component D is selected from alkyl ether of carbon atom number 2~8.The metallocene catalyst system used in the application has high catalytic activity and raw materials are cheap and easy to obtain, which can greatly reduce production cost.Compared with BF3 catalyst system, the catalyst system provided by the application is non-toxic, harmless, non-polluting, non-corrosive, which can effectively solve the technical problems of toxic, harmful, corrosion and pollution existing in traditional technical route, thereby improving the operating environment, and ensuring personal health.The application can synthesize narrow distribution, medium molecular weight polyisobutylene under mild conditions of 0~80 DEG C, i.e., using conventional cooling water to remove heat, which solves the low temperature reaction problem existing in traditional cationic polymerization.

Cosmetic and dietary supplement compositions containing silymarin and sulfoalkyl ether cyclodextrin, particularly sulfobutyl ether cyclodextrin, are described. The compositions and methods are useful in reducing appearance of facial redness in rosacea-prone skin, rejuvenating skin, preventing skin aging, inhibiting oxidative stress in epidermal and dermal cells, increasing collagen production, reducing the likelihood of skin cancer, treating or reducing liver damage from a toxin, or treating a liver disease.

This invention relates to a group of inkjet compositions and cleaning solutions, the cleaning solution, and a cleaning method. Therefore, the group of inkjet compositions and cleaning solutions provided can reduce contamination of fabric transport components, maintain good transportability of the fabric transport components, and suppress uneven concentration during image formation. A group of inkjet compositions and cleaning solutions is provided for an inkjet printing and recording apparatus. The cleaning solution contains a glycol ether compound, a polyoxyalkylene oxide ether compound, and water. The inkjet composition contains resin particles and water. The surface tension of the cleaning solution at 25°C is less than 40 mN / m. The cleaning solution is used for cleaning the fabric transport components of the inkjet printing and recording apparatus.