77 results about "Phosphomonoesters" patented technology

The invention provides a method of modifying a phosphomonoester moiety of a target compound. The method can include the steps of (a) providing a target compound having an electrophilic moiety and a phosphomonoester moiety; (b) contacting the target compound with a first carbodiimide compound under conditions for preferential addition of the first carbodiimide compound to the electrophilic moiety over the phosphomonoester moiety, thereby forming an electrophile-protected target compound; and (c) contacting the electrophile-protected target compound with a second carbodiimide compound and a nucleophilic compound under conditions for addition of the nucleophilic compound to the phosphomonoester.

The invention provides an engineering plastic with high wearing resistance. The engineering plastic is made from the following raw materials by weight: 80-100 parts of polyformaldehyde, 20-40 parts of polyamide, 20-50 parts of polycarbonate, 25-40 parts of acrylonitrile-butadiene-styrene copolymer, 10-30 parts of epoxy resin, 12-20 parts of polytrimethylene terephthalate, 1-5 parts of diphenylmethane bismaleimide, 10-15 parts of polyphenyl ether, 20-40 parts of polyether-ether-ketone, 10-20 parts of polytetrafluoroethylene, 5-10 parts of melamine, 4-12 parts of boric acid alkanolamide, 2-6 parts of polyethylene glycol, 4-12 parts of phenolic ether phosphomonoester, 5-15 parts of polymethyl methacrylate, 10-20 parts of organic silicone oil, 5-10 parts of silane coupling agent, 3-5 parts of zinc stearate, 10-20 parts of glass fibre, 12-20 parts of graphite, 5-10 parts of silicon carbide whisker, 5-8 parts of nanometre titanium oxide, 4-6 parts of diphenyl ketone, 3-8 parts of butylated hydroxyanisole and 15-30 parts of filler. The engineering plastic provided by the invention has a good wear-resisting property.

The invention discloses a crosslinking-type low-sensitivity ester-ether copolymerized polycarboxylate superplasticizer and a preparation method thereof. The crosslinking-type low-sensitivity ester-ether copolymerized polycarboxylate superplasticizer has the number-average molecular weight of 10000-100000 and has a structural formula as shown in the specification. Under the synergistic effect of various groups, the polycarboxylate superplasticizer formed by copolymerization of 4-hydroxybutyl-vinyl polyoxyethylene ether, unsaturated acid, unsaturated phosphomonoester and unsaturated phosphodiester has the advantages of high water-reducing rate, high slump loss resistance, high peaceability, mud-resistant property and low dosage sensibility.

The invention aims to provide a metal antirust emulsion. The metal antirust emulsion is prepared from raw materials in percentage by weight as follows: 35%-50% of an allyl monomer, 1.5%-5% of a functional monomer, 0.5%-3% of a function monomer, 1%-7% of an emulsifier, 0.1%-0.3% of an initiator, 0.05%-2.5% of a pH regulator and 45%-60% of water, wherein the allyl monomer is a mixture of styrene and at least one of methacrylate or acrylic ester; the functional monomer is a mixture of acrylic phosphate and active organosilane; the function monomer is a mixture of acrylamide and at least one of acrylic acid or methacrylic acid; the emulsifier is a compound emulsifier prepared from two or more of branched alkyl alcohol polyoxyethylene ether phosphomonoester, alkylphenol phosphate, acrylic polyether phosphate, 3-allyloxy-1-hydroxy-1-propane sulfonate and a polymerizable sulphate emulsifier through compounding. Poly(bisphenol A acryloxyethyl phosphate).

The invention discloses a cross-linking type low-sensitivity polycarboxylate water reducing agent and a preparation method thereof. The structural formula of the polycarboxylate water reducing agent is as shown in the specification. The polycarboxylate water reducing agent is synthesized by copolymerization of 4-hydroxybutyl vinyl polyethenoxy ether, unsaturated acid, unsaturated phosphomonoester and unsaturated phosphodiester, and has high water-reducing rate, high slump loss resistance, mud resistance and low dosage sensibility under the synergetic effect of various groups.

Provided is a lubricating oil composition containing a base oil which includes a mineral oil and/or a synthetic oil, and compounded therein, (A) at least one phosphorus-containing compound selected from phosphoric acid monoesters, phosphoric acid diesters and phosphorous acid monoesters, each having a C₁ to C₈ hydrocarbon group or groups and (B) a tertiary amine compound having C₆ to C₁₀ hydrocarbon groups as substituents thereof. The lubricating oil composition provides both a high metal to metal friction coefficient and an excellent wear resistance and is suitably used in a continuously variable transmission.

The invention discloses a preparation method of fatty alcohol polyoxyethylene phosphate ester potassium salt, which comprises the following steps: (1) performing esterification reaction on fatty alcohol used as a raw material and phosphorus pentoxide; (2) adding deionized water, hydrolyzing to obtain a fatty alcohol phosphate ester mixture mainly containing phosphate monoester and phosphate diester, and directly performing condensation reaction with epoxyethane in the absence of a catalyst; and (3) neutralizing with a 60% potassium hydroxide water solution until the pH value is 6-8, thus preparing to obtain fatty alcohol polyoxyethylene ether phosphate ester potassium salt of which the solid content is 90% or above. In the above mode, in comparison with the fatty alcohol polyoxyethylene ether phosphate ester potassium salt, the fatty alcohol polyoxyethylene phosphate ester potassium salt synthesized by the invention has the advantages of high solid content and liquid flow, reduces the transportation cost, and facilitates storage and use by users, thus having better economic benefits.

The invention relates to a waterborne epoxy graphene low-zinc antirust primer. The waterborne epoxy graphene low-zinc antirust primer comprises a component A and a component B, wherein the component Ais composed of a waterborne epoxy curing agent, zinc powder, ferrophosphorus powder, a block copolymer dispersant, MMP, a graphene dispersion and an auxiliary agent; the component B is waterborne epoxy resin; the graphene dispersion is composed of MMP, ethanol, graphene, a block copolymer dispersant, etc.; and the block coplymer dispersant is prepared from itaconic acid, vinylbenzenesulfinic acidsodium salt, methacryloyloxy alkylol phosphomonoester, a RAFT reagent and an initiator through a reaction. The waterborne epoxy graphene low-zinc primer prepared by using the preparation method provided by the invention has excellent adhesion force, flash-rust resistance, corrosion resistance, oil resistance, water resistance, salt fog resistance and storage stability, is a low-VOC, low-zinc, environment-friendly and anticorrosive coating, and is extensively used as an anticorrosive primer for a steel structure in chemical atmosphere and marine environments and used as a primer for rust prevention and corrosion prevention of bridges, storage tanks, containers, ships, steel structure facilities and the like and for protection of steel plates in workshops.

The invention discloses a method for carrying out surface treatment on pigments by using phosphorous compounds. The method comprises the following steps that mixing aromatic phosphorous compound and alkyl phosphorous compound and then carrying out surface treatment on a pigment, wherein one of 2-benzyl phenol phosphomonoester and 2,4,6-tris(1-methyl-1-phenylethyl)phenol phosphomonoester is preferably chosen as the aromatic phosphorous compound, and alkyl phosphate containing 12 to 18 carbon atoms is preferably chosen as the alkyl phosphorous compound. When the pigment treated by the method is used in the preparation of water-based color paste, the stability and tinctorial strength of the water-based color paste are remarkably enhanced.

Environment-friendly antibacterial fresh-keeping bag comprises the following components in parts by weight: 90-99 parts of polyethylene, 0.1-10 parts of a breathable and water-tight supporting body, 0.1-10 parts of an antibacterial agent, 0.01-5 parts of an ethylene absorbing and decomposing agent and 0.01-5 parts of a coupling agent, wherein the breathable and water-tight supporting body is one of ultrafine inorganic powder organic montmorillonite and active clay; the ethylene absorbing and decomposing agent is one of pPotassium permanganate, potassium dichromate, potassium iodide and calcium peroxide; the antibacterial agent is an inorganic silver ion glass carrier antibacterial agent, a glass carrier silver ion antibacterial agent or a nanosilver-containing antibacterial fine grain; the coupling agent is one of chelated lactic titanate, isopropyltri(polyether isooctyl pyrophosphato)titanate, phosphomonoester, triisopropyl borate, gamma-chloropropyltrichlorosilane, gamma -hexyldiamino propyl triethoxysilane, vinylsilane and trichlorovinylsilane.

The invention discloses a method for removing ink of waste paper, which comprises the following steps: removing ink of waste paper through repulping; removing slag and concentrating; and floating to remove ink. An ink removal agent is added in the process of removing ink through waste paper repulping, the ink removal agent is prepared through the following steps: weighing the following components according to weight percentage: 10-15% of fatty alcohol polyoxyethylene ether, 43-46% of sodium dodecyl benzene sulfonate, 2-5% of tween 80 and balance of water. In the process of floating to remove ink, a trapping agent is added, a method for preparing the trapping agent comprises the following steps: weighing the following components according to weight percentage: 20-30% of sodium stearate, 5-8% of polyoxyethylene ether phosphomonoester, and 65-70% of water. According to the method, under whiteness guarantee condition, the residual amount of ink on the recycled paper is little, and secondary fiber yield is high.

The invention relates to a preparation method of phosphomonoester and mainly solves problems of complex preparation technology of phosphomonoester and low content of phosphomonoester existing in the prior art. The preparation method of the invention comprises the following steps: (1) adding a hydroxy compound and water into a reactor, and heating to 55-80 DEG C; (2) slowly pouring P2O5, controlling temperature of materials in the reactor to 55-95 DEG C, and controlling pouring time within 1-2 h; (3) carrying out thermal insulation at 75-95 DEG C for 3-6 h so as to obtain a material A; and (4) adding water and a catalyst X into the material A, controlling temperature to 70-90 DEG C, and carrying out thermal insulation at the temperature for 2-3 h so as to obtain phosphomonoester. The hydroxy compound accords with the following general formula: RO(EO)m(PO)nH. The catalyst X is at least one compound selected from SnCl4, MnO2 and CuSO4. The preparation method can be used in preparation of phosphomonoester.

The invention discloses a water-based insect expelling aerosol composition which comprises the following components in percentage by weight: 0.2%-20% of insect expelling active component, 0.01%-5% of phosphate surface active agent, 0.003%-5.5% of pH regulating agent, 5%-60% of ethanol, 30%-80% of deionized water and 5%-30% of propelling agent, wherein the phosphate surface active agent is phosphomonoester or phosphodiester or a mixture of the phosphomonoester and the phosphodiester, and the phosphomonoester or the phosphodiester or the mixture of the phosphomonoester and the phosphodiester is in a chemical structure which contains more than 12 carbon atoms; the pH range of the water-based insect expelling aerosol composition is 6-8. The water-based insect expelling aerosol composition disclosed by the invention can effectively prevent the mosquito bite. According to the water-based insect expelling aerosol composition, the pH value of an aerosol content system is neutral, so that the degradation of active component and the corrosion to a tank body can be well prevented.

The invention discloses a surface treatment method for antibacterial calcium carbonate special for papermaking. The surface treatment method includes the steps that limestone is added into a smashingmachine, smashing is carried out, and calcium-carbonate coarse powder is obtained; the calcium-carbonate coarse powder is added into a grinding machine, first modifying agent is added, grinding is carried out, and calcium-carbonate fine powder is obtained; the calcium-carbonate fine powder is delivered to a high-speed stirring machine, second modifying agent is added, the mixture is stirred at high speed and mixed to be even, drying is carried out, and modified calcium carbonate for papermaking is obtained, wherein the first modifying agent is prepared from nonylphenol polyoxyethylene ether phosphomonoester sodium salt and octakis(trimethylsiloxy)silsesquioxane; the second modifying agent is prepared from sapindus-saponin, chitosan and N-propyl-perfluor octyl sulfamide potassium glutamate.The calcium carbonate obtained through surface modification has good dispersity, hydrophilic oleophylic performance, thixotropy, processing fluidity and bonding adhesive force, and also has good antibacterial bacteriostasis effect, ageing resistance and yellowing resistance, and the antibacterial calcium carbonate can serves as an excellent papermaking filler.

The invention discloses a nickel catalyzed tedizolid phosphate synthesis method. The method includes that methyl tetrazolium bromopyridine serving as an electrophilic reagent and N-oxazolidinone phenyl zinc halide serving as a nucleophilic reagent are subjected to nickel catalyzed Negishi coupling reaction and in-situ deprotection to obtain pharmaceutically active molecular tedizolid through a two-step one-pot process, and tedizolid is subjected to phosphoric acid esterification to obtain tedizolid phosphate. The method has advantages that 1) by in-situ synthesis and utilization of the organiczinc reagent, a complex step of metal reagent separation is avoided; 2) a cheap nickel catalyzing system is applied to establishment of a tedizolid phosphate core framework for the first time, and efficiency of nickel catalyzed Negishi coupling reaction is equivalent to that of palladium catalyzed Suzuki coupling reaction in current industrial synthesis of tedizolid phosphate. The remarkable advantages are beneficial to improvement of efficiency in tedizolid phosphate synthesis and production cost reduction, and the nickel catalyzed tedizolid phosphate synthesis method has a promising industrial application prospect.

An organic hydroxyl compound is reacted with a phosphorylating agent comprising phosphorus pentaoxide and at least one compound selected from the group consisting of water, phosphoric acid and polyphosphoric acid and having a value represented by formula (I) of from 0.5 to 1.0, under such a condition that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2; or alternatively, an organic hydroxyl compound is reacted with the above phosphorylating agent under such a condition that the ratio as defined by formula (II) has a value in the range of from exceeding 3.2 up to 6.4 and then phosphorus pentaoxide is added to the reaction product in such an amount that the ratio as defined by formula (II) has a value in the range of from 2.8 to 3.2 with respect to the total feeds of the starting materials to conduct further reaction. Said process enables the preparation of a phosphoric ester mixture which is excellent in hue and odor, is reduced in the amount of orthophosphoric acid formed as a by-product and contains a phosphoric monoester useful as the component of detergent in an increased amount.

The invention relates to a water-soluble rubescensin a derivative and a preparation method thereof. Specifically, the structure of rubescensin a derivative is modified, and on the basis of reaction of hydroxyl groups in the structure, phosphomonoester, carbamic acid ester or salt and other water soluble groups are introduced, so that water solubility and drug characteristics are significantly improved.

The invention discloses a preparation method of ethylene glycol monophenyl ether phosphomonoester surfactant and belongs to the technical field of surfactant. The preparation method disclosed by the invention comprises the steps of mixing phenol with 2-bromoethanol, dissolving the mixture in dimethylformamide, then adding and uniformly agitating potassium carbonate for reaction, adding distilled water to separate liquid, and increasing the temperature of solution at a lower layer to 160 to 180 DEG C to remove residual dimethylformamide in the solution; then adding polyphosphoric acid into the solution, agitating the solution and increasing the temperature to 60 to 80 DEG C, then adding 1.65 to 5g of catalyst for reaction, adding and uniformly agitating P2O5 for reaction, and adding distilled water with volume of 3 to 5 percent of total volume of the solution to perform hydrolysis for 1 to 3h at 60 to 80 DEG C to obtain the ethylene glycol monophenyl ether phosphomonoester surfactant. The preparation method of ethylene glycol monophenyl ether phosphomonoester surfactant has the advantages that the conversion rate of the prepared ethylene glycol monophenyl ether phosphomonoester is high, the monoester content highly reaches 86 to 86 percent, the alkali resistance of the surfactant is extremely high and the permeability is excellent.

The invention discloses a preparation method of a Gemini phosphate surfactant. The method comprises the following steps: (1) obtaining alkyl phosphomonoester and a hydrogen chloride gas from fatty alcohol and POCl3; (2) carrying out catalytic chlorination on the hydrogen chloride gas obtained in the step (1) and glycerin to obtain glycerin dichlorohydrin; and (3) carrying out neutralization reaction on the alkyl phosphomonoester obtained in the step (1) and a quaternary ammonium base and then adding the glycerin dichlorohydrin obtained in the step (2) to obtain the Gemini phosphate surfactant. The preparation method of the Gemini phosphate surfactant, disclosed by the invention, is high in yield and simple in preparation flow. Meanwhile, the invention further provides the Gemini phosphate surfactant.

Analytical chemical reagents termed non-signal imidazoles and a method for their use that provide a host of advantages for analysis of phosphomonoesters are described. The method and compounds of the invention provide a host of advantages for the analysis of phosphomonoester-containing compounds, namely characteristic, multi-analyte detection with high sensitivity and specificity of known and unknown phosphomonoester-compounds simultaneously.

The invention discloses die bond solder paste for LED packaging and a preparing method of the die bond solder paste. The die bond solder paste is composed of tin-based alloy powder and scaling powderwith the mass ratio of (85-90): (10-15), and the tin-based alloy powder is one of a Sn96.5Ag3Cu0.5 alloy, a Sn82.5Bi17Cu0.5 alloy, a Sn80.3Ag3Cu1Bi15Sb0.7 alloy and a Sn96.5Ag3.5 alloy. The scaling powder comprises following components including lactic acid-glycollic acid copolymer, sodium bicarbonate, phosphomonoester, water soluble silicone oil, polyaniline, resin, a wetting agent, a thixotropicagent and a solvent. The die bond solder paste has good printing performance, excellent weldability, low postwelding residues and corrosion resistance, high heat conductivity and good storage performance, and the LED packaging reliability is obviously improved.

The invention relates to a preparation method of phosphomonoester, and mainly solves the problems that in the prior art, a preparation process of phosphomonoester is complex, and the content of the phosphomonoester is low. The preparation method of the phosphomonoester comprises the following steps: (1) adding a hydroxyl compound and water into a reactor, and heating to the temperature of 55-80 DEG C; (2) adding a catalyst X into a reactor, slowly adding P2O5, controlling the temperature of materials in the reactor to be 55-95 DEG C, and controlling the feeding time to be 1-2 hours; (3) insulating at the temperature of 75-95 DEG C for 3-6 hours to obtain a material A; and (4) adding water into the material A, controlling the temperature to be 70-90 DEG C, and insulating at the temperaturefor 2-3 hours to obtain the phosphomonoester. The hydroxyl compound conforms to the following general formula: RO(EO)m(PO)nH. According to the technical scheme, the catalyst X is selected from at least one of SnCl4, MnO2 and CuSO4, and can be used for preparing the phosphomonoester.

The invention discloses a method used for carbonate bacterium and phosphate bacterium compound passivating heavy metal and solidifying pollution electroplating sludge. The method comprises following steps: 1, a solution A is prepared, a solution B is prepared, and the solution A and the solution B are blended so as to obtain a composite bacterium solution, wherein the solution A is prepared through hydrolysis of urea with Bacillus pasteurii into carbonate ions, and the solution B is prepared through hydrolysis of an organic phosphomonoester into phosphate ions; 2, the composite bacterium solution and heavy metal ion-containing electroplating sludge are subjected to mechanical uniform stirring; 3, Bacillus subtilis is adopted for flocculation of electroplating sludge, vacuum dehydration iscarried out, the composite bacterium solution is adopted for passivation of free heavy metal ions in the electroplating sludge, and electroplating sludge solidifying is carried out. The method is capable of realizing high efficiency passivation of free heavy metal ions in electroplating sludge, solidifying electroplating sludge, and realizing environment-friendly discharge of water in sludge, andthe solidified electroplating sludge can be treated through deep landfilling.