133 results about "Organophosphorus compound" patented technology

The present invention discloses an α-aminocaprolactam flame retardant containing a substituted P-C-N functional group, and a preparation method and application thereof. The flame retardant is prepared by a two-step reaction of three components, namely, α-aminocaprolactam, an aldehyde-containing compound, and an organophosphorus compound containing a P-H bond. First, the aldehyde-containing compound is reacted with the α-aminocaprolactam to obtain a Schiff base intermediate, which is then subjected to nucleophilic addition with the organophosphorus compound containing a P-H bond to obtain an α-aminocaprolactam substituted with a P-C-N functional group. The flame retardant of the present invention can introduce a variety of flame retardant elements including phosphorus, nitrogen, halogen, silicon and the like through the aldehyde-containing compound and the organophosphorus compound containing a P-H bond, thereby giving it good flame retardant properties; at the same time, the caprolactam group contained can be copolymerized with a variety of monomers or exchanged with a variety of polymers to prepare a variety of intrinsic flame-retardant polymers, and has broad application prospects.

The invention belongs to the technical field of organic synthesis, and particularly relates to a benzothiazole phosphorus compound and a synthesis method and application thereof.The synthesis method of the benzothiazole phosphorus compound specifically comprises the steps that a benzothiazole compound and an organic phosphorus compound are placed in a solvent and react in a nitrogen atmosphere under the action of illumination and an oxidizing agent, and the benzothiazole phosphorus compound is obtained. And the benzothiazole phosphorus compound is obtained. The molar ratio of the benzothiazole compound to the organic phosphorus compound is (1: 1)-(1: 5.5), and the oxidizing agent is persulfate. The preparation method comprises the following steps: adding a certain amount of water into a reaction kettle, reacting for 24-30 hours, dissolving solids in a reaction solution, adding ethyl acetate for extraction for three times, collecting the ethyl acetate, spin-drying, separating by a chromatographic column, and purifying to obtain a series of benzothiazole phosphorus compounds. The synthesis method disclosed by the invention is simple and convenient to operate and high in product yield.

[Problem] To provide: a flame retardant which has excellent flame retardancy and contains, as an active ingredient, an organic phosphoric acid compound reduced in environmental burden; a flame-retardant polyurethane resin composition containing the flame retardant; and a synthetic leather obtained using the flame-retardant polyurethane resin composition.　[Solution] A polyurethane resin composition containing a flame retardant that contains, as an active ingredient, an organophosphorus compound which is a salt obtained by reacting phytic acid with an aliphatic polyamine, preferably an aliphatic polyamine represented by R-(NH2)x (wherein R is a C2-C12 linear aliphatic hydrocarbon group and X is an integer of 2-4).　

The present invention discloses a preparation method of an enhanced hydrolytic nanozyme for the degradation of organophosphorus pesticides. The broad-spectrum nucleic acid aptamer BSAPT is modified on the surface of a metal zirconium organic framework MOF-808 in various ways to form a MOF-808 / BSAPT or MOF-808-BSAPT enhanced hydrolytic nanozyme for selective and efficient degradation of organophosphorus pesticides. The enhanced hydrolytic nanozyme prepared by the present invention can simulate phosphatase activity and broadly identify a variety of highly toxic organophosphorus pesticides. The organophosphorus pesticide broad-spectrum nucleic acid aptamer BSAPT actively recognizes and captures organophosphorus compounds, enriches the target molecule to the Lewis acidic Zr(IV) active site center of MOF-808, and achieves selective and efficient degradation of organophosphorus pesticides by nucleophilic attack on the electrophilic group of the phosphorus atom center of the organophosphorus compound substrate. It can effectively degrade a variety of highly toxic organophosphorus pesticides such as chlorpyrifos, profenofos, and methyl parathion. The invention has simple preparation materials, low cost, fast degradation rate and broad spectrum, and can be applied to the degradation of various organophosphorus pesticides in water bodies.

The invention provides a lightweight single-component fireproof sealing filler. The lightweight single-component fireproof sealing filler comprises calcium sulfate hemihydrate, aluminosilicate, polyvinyl alcohol, cellulose ether, titanium dioxide, a gypsum retarder, a defoaming agent, sodium acetate trihydrate and a flame-retardant filler, the flame-retardant filler is prepared by taking a compound of alumina fiber and magnesium hydroxide as a matrix, growing a Zr-MOF material with amino on the surface of the matrix, and finally modifying an organic phosphorus compound. The prepared sealing filler is excellent in fireproof performance, good in flame retardance, light in weight, good in mechanical property and convenient to use.

Embodiments according to the present invention include a composition comprising a polymer formed from polycyclic olefin monomers wherein at least one monomer comprises, as desired, other unpolymerized ethylene bonds, an organophosphorus compound, as desired, hexagonal boron nitride, a crosslinking agent, a free radical initiator, a tackifier, and one or more suitable additives. The compositions of the present invention are capable of forming various three-dimensional insulators, such as films, when exposed to suitable high temperatures. Objects formed from the composition of the present invention exhibit low dielectric constant, low loss characteristics, flame retardancy, and extremely high thermal characteristics that have not been achieved up to now. The composition of the present invention may further contain one or more organic or inorganic filler materials that provide improved thermomechanical properties in addition to excellent thermal and dielectric properties. The composition of the present invention can be used in various applications, including as an insulating material for millimeter wave radar antennas, and the like. The film formed from the composition of the present invention has a UL-94V-0 rating, a dielectric constant (Dk) of less than 2.7, and a dielectric loss factor (Df) of less than 0.0009.

The present invention belongs to the field of selective extraction of lithium, and provides a lithium composite extractant and a method for extracting lithium. The composition of the composite extractant includes a carbonyl compound 1A, a salicylate compound 1B, an organophosphorus compound 1C, phenylbiguanide, and a diluent. The composite extractant provided by the present invention has low water solubility, is stable under acidic and alkaline conditions, has a fast phase separation speed, does not emulsify, has high selectivity, has a low total organic carbon (TOC) in the raffinate, the raffinate can be discharged after simple treatment, and the extractant can be recycled repeatedly with basically no decrease in extraction performance. The high-purity lithium-containing solution after extraction can be used to prepare high-purity lithium carbonate, realizing the short-process preparation of battery-grade lithium carbonate.

This invention provides a class of organophosphorus compounds based on phosphane structural units and their preparation methods, namely phosphane phosphonium oxides represented by formula (II) and phosphane phosphonium hydrogens represented by formula (III). These organophosphorus compounds are widely used in the manufacture of optoelectronic devices. Their synthesis method avoids the use of highly polluting chlorine gas and the subsequent emissions problems caused by traditional phosphorus chemical production, making it an extremely environmentally friendly production method. Furthermore, the method disclosed in this invention features mild reaction conditions, short reaction time, simple post-processing, and high yield.

The invention discloses a phosphabicyclo [3, 2, 0] organic phosphorus compound as well as a preparation method and application thereof. Diallyl-containing tertiary phosphine oxide and phosphine sulfur compounds are used as raw materials, 10-phenyl phenothiazine is used as a photocatalyst, the photocatalyst is excited under a light source of 390 nm to activate double bonds, high-stereoselectivity [2 + 2] cycloaddition reaction is realized, the phosphorus heterocyclic bicyclo [3, 2, 0] organophosphorus compound containing two quaternary carbon centers is synthesized, diastereoisomers can be separated, and the yield is high. A single diastereoisomer product is as high as 97%, and excellent diastereoselectivity is achieved. The invention provides a green reaction mode for photocatalytic synthesis of the phosphabicyclo [3, 2, 0] organophosphorus compound, the conditions are mild, and the substrate universality is good. The obtained phosphabicyclo [3, 2, 0] organophosphorus compound is applied to a primary alcohol chlorination reaction as a catalyst, shows high reaction activity, and has more excellent catalytic activity compared with a reported catalytic system.

The present invention provides a gasoline engine lubricating oil composition comprising the following components: (A) an organophosphorus compound, accounting for 0.05% to 10% of the total mass of the composition; (B) an alkyldiphenylamine, accounting for 0.05% to 5% of the total mass of the composition; (C) polyisobutylene succinimide, accounting for 2% to 30% of the total mass of the composition; (D) a sulfonate and / or a sulfurized alkylphenol, accounting for 0.2% to 10% of the total mass of the composition; (E) a zinc dialkyl dithiophosphate, accounting for 0.2% to 10% of the total mass of the composition; (F) an organomolybdenum, accounting for 0.05% to 5% of the total mass of the composition; (G) an ethylene-propylene copolymer, accounting for 2% to 30% of the total mass of the composition; and (H) a major amount of a lubricating oil base oil. The structure of the organophosphorus compound is described in the specification. The gasoline engine lubricating oil composition of the present invention has excellent anti-wear, friction-reducing, antioxidant, and detergency properties, and can inhibit the formation of deposits in turbochargers.

The present invention provides a diesel engine oil composition comprising an organophosphorus compound, a boronated polyisobutylene succinimide dispersant, an amine antioxidant, a detergent, a zinc dialkyl dithiophosphate, a viscosity index improver, and a major amount of a lubricating base oil. The organophosphorus compound has a structure as shown in Formula (I): #imgabs0# In Formula (I), at least one A group is selected from the group represented by Formula (II), the group represented by Formula (III), or the group represented by Formula (IV); #imgabs1# where the definitions of each group are as described in the specification. The diesel engine oil composition of the present invention exhibits excellent high-temperature antioxidant properties, high-temperature detergency, anti-wear properties, and anti-corrosion properties, meeting the requirements of high-performance diesel engine lubricants.

Provided are a resin composition having excellent electrical characteristics and flame retardancy, a prepreg, a metal-clad laminate, and a method for producing the same. The resin composition contains at least a resin having an α-olefin structure represented by formula (1), an organophosphorus compound, and a compound having at least one of an oxygen atom and a nitrogen atom. Also provided are a prepreg, a metal-clad laminate, and a method for producing the metal-clad laminate using the resin composition. In formula (1), each R1 independently represents a hydrocarbon group having 1-10 carbon atoms or a halogenated alkyl group, p1 represents a real number of 0-4, and each * represents a bonding position.

The present disclosure is directed to luminescent sensors able to detect low concentration levels of organophosphorus compounds (e.g., sarin) with high sensitivity and specificity. Sensor compounds disclosed herein can demonstrate an immediate change in color upon exposure to a drop or vapor of an organophosphorus compound. Detectors incorporating the sensor compounds and methods of their use are also disclosed herein.

Detonation nanodiamond nanocarrier platforms to transport quaternary oxime antidotes into the central nervous system have been developed. The nanodiamond-based AChE reactivators contain an organophosphorus poisoning antidote (e.g., a 4-hydroximinopyridinium moiety) bound to a biocompatible linker covalently attached to the nanodiamonds. These functionalized nanodiamonds successfully cross the layer of Madin-Darby Canine Kidney (MDCK) cells, the epithelial cell surrogate BBB model, and demonstrate a measurable dose-independent in vitro reactivation capacity towards human AChE inhibited by toxic organophosphorus compounds.

To provide an endless belt for an electronic photograph apparatus which attains a physical property and fire-resistance at one time and can take environmental load into consideration at low cost.SOLUTION: In an endless belt 10 for an electronic photograph apparatus, a base layer 12 is formed from a resin composition including a polyamide-imide resin having structural units derived from the following components (A) to (C) and a flame retardant. The molar ratio of a structural unit (α) derived from the component (A) to a structural unit (β) derived from the component (B) is within the range of (α) / (β)=95 / 5 to 30 / 70, and the flame retardant is an organophosphorus compound. (A) diphenylmethane diisocyanate (MDI): (B) tolidine diisocyanate (TODI); (C) an anhydride of an aromatic polycarboxylic acid.SELECTED DRAWING: Figure 1

The present invention provides a heavy-duty gas engine lubricating oil composition comprising an organophosphorus compound, a polyisobutylene succinimide ashless dispersant, an amine antioxidant, a detergent, a zinc dialkyl dithiophosphate, a viscosity index improver, a pour point depressant, and a major amount of a lubricating base oil. The organophosphorus compound has a structure as shown in Formula (I): #imgabs0# In Formula (I), at least one A group is selected from the group represented by Formula (II), the group represented by Formula (III), or the group represented by Formula (IV); #imgabs1# where the definitions of each group are as described in the specification. The gas engine lubricating oil composition of the present invention exhibits excellent high-temperature antioxidant, high-temperature detergency, anti-wear, and dispersancy properties, meeting the requirements of high-performance gas engine lubricants.

Described herein is a continuous web pretreatment process for treating the surface of an aluminum alloy sheet or web for subsequent deposition of an acidic organophosphorus compound. The method may include applying a cleaning agent to a surface of an aluminum sheet or coil; etching the surface of the aluminum sheet or the coil using an acidic solution; washing the surface of the aluminum sheet or the coiled material by using deionized water; coating the surface of the aluminum sheet or the coiled material with a solution of an acidic organophosphorus compound; washing the surface of the aluminum sheet or the coiled material by using deionized water; and drying the surface of the aluminum sheet or the coiled material.

The invention relates to the use of organophosphate compounds for the selective extraction or recovery of manganese from an acidic aqueous solution. These organophosphate compounds conform to the following formula (I): [Chem 1] in which R1 represents a linear or branched alkyl group, comprising from 4 to 12 carbon atoms, and R2 represents a linear or branched alkyl group, comprising from 1 to 8 carbon atoms, and R3 represents a hydrogen atom or a linear or branched alkyl group, comprising from 1 to 12 carbon atoms. The invention also relates to the organophosphate compounds themselves. Applications: recycling of waste electrical and electronic equipment (WEEE), in particular waste from used lithium-ion electrochemical accumulators (more commonly known as batteries) in order to recover the manganese present in these batteries, and recovery of manganese from natural manganese sources.

To provide a reactive hot-melt composition that enables impartation of flame retardancy with a reduced addition amount of a flame retardant as compared with conventional reactive hot-melt compositions, while suppressing appearance defects including bleed-out and cracks.SOLUTION: A reactive hot-melt composition contains (A) a hot melt and (B) a flame retardant, wherein the (A) hot melt is a urethane prepolymer obtained by reacting (C) a hydroxyl group-containing compound with (D) an isocyanate compound, the (C) hydroxyl group-containing compound includes (C1) a hydroxyl group-containing compound having a melting point of 50°C or more, and (C2) a hydroxyl group-containing compound having a melting point of 20°C or less and not having an alicyclic structure, and the (B) flame retardant includes (B1) an organic phosphorus compound having a melting point of 50°C or more.SELECTED DRAWING: None

The invention relates to a composite corrosion inhibitor as well as a preparation method and application thereof, and the method comprises the following steps: S1, mixing glyphosate mother liquor wastewater with a composite complexing precipitator for reaction to obtain organic phosphorus mixed precipitate; and S2, carrying out solid-liquid separation on the organic phosphorus mixed precipitate, and dissolving the obtained solid with an acid solution to prepare the composite corrosion inhibitor. According to the method disclosed by the invention, various organophosphorus products and byproducts in the glyphosate mother liquor wastewater are enriched to prepare the composite corrosion inhibitor, the obtained mixed phosphine compound is creatively used as the corrosion inhibitor of the circulating cooling water system, and various organophosphorus compounds contained in the mixed phosphine compound have an excellent synergistic effect; the corrosion and scale inhibition effect is better than that of a single agent, and meanwhile, the glyphosate mother liquor wastewater can be effectively treated.

Flame-retardant polymer composition, comprising a) 5 to 75 wt.%, based on the total weight of the flame-retardant polymer composition, at least one elastomeric polymer containing at least one polymerized monomer selected under C2-C 30 -Alkylenes, wherein the elastomeric polymer a) is selected from among curable elastomers, b) 2 to 35 wt.%, based on the total weight of the flame-retardant polymer composition, polyarylene sulfide, where component b) is in particle form with a mean particle size in the range of 0.1 to 70 µm, c) at least one hardening agent, d) 0.5 to 75 wt.%, based on the total weight of the flame-retardant polymer composition, at least one compound of an element selected from magnesium, calcium, boron, aluminium, antimony, tin, zinc, organophosphorus compounds, organohalogen compounds and mixtures thereof.

The present invention relates to a process for providing a homogeneous polyether polyol composition comprising the following steps: Providing a crude polyether polyol mixture comprising polyether polyol and a Group IA or Group IIA metal ion; Neutralisation of said crude polyether polyol mixture by adding a strong acid to said mixture, resulting in a neutralised polyether polyol composition, which comprises said polyether polyol along with a salt of said Group IA or Group IIA metal ion and said strong acid; Providing said homogeneous polyether polyol composition. characterised in that said strong acid is a pentavalent organic phosphorus compound, and in that said salt is a phosphorus-containing compound based organic salt, which is soluble in said polyether polyol composition.

This invention belongs to the field of flame retardant and antibacterial technology, and discloses a reactive flame retardant and antibacterial additive for polyester, its preparation method and application. In the structural formula of the reactive flame retardant and antibacterial additive for polyester, n=5~10, and R1 is a guanidine group or (CH2). y y = 0, 3, 4; R3 is guanidine or (CH2)0; R2 is methyl, ethyl, or phenyl; the preparation method is as follows: guanidine compounds and organophosphorus compounds are sequentially subjected to amidation and polycondensation reactions to obtain a reactive flame-retardant and antibacterial additive for polyester; its application is as follows: after mixing terephthalic acid, ethylene glycol, and catalyst B, an esterification reaction is carried out, followed by the addition of the reactive flame-retardant and antibacterial additive for polyester and polycondensation, thereby obtaining a flame-retardant and antibacterial PET copolyester. This invention achieves flame-retardant and antibacterial functionalization of polyester while also possessing excellent mechanical properties.

The invention relates to the technical field of fiber reinforced materials, and discloses a continuous fiber reinforced material and a preparation method thereof, and the method comprises the following steps: preparing a smoke suppressant compound composition, and carrying out surface hydrophobic modification treatment on metal hydroxide; preparing phase-change heat-absorbing material microcapsules, and adding hydrophobic inorganic nanoparticles into a shell material to enhance the compactness; preparing a catalytic char-forming synergist composition, and carrying out anti-hydrolysis stabilizer end-capping treatment on the organic phosphorus compound; the components and the moisture absorption regulating agent are jointly dispersed in the matrix resin to form the flame-retardant matrix resin composition; and compounding the continuous fibers and the flame-retardant matrix resin composition, and carrying out curing molding. The comprehensive fireproof safety is improved by 4-6 times compared with that of a traditional flame-retardant material through triple synergistic effects of smoke suppression, heat absorption and charring, and meanwhile, the initial flame-retardant performance of the material can still be kept at 85% or above in a high-humidity and high-temperature environment for 6-12 months through multiple damp-heat-aging-resistant improvement measures.

The invention provides a spherical catalyst component for olefin polymerization. The spherical catalyst component comprises a magnesium element, a titanium element, halogen, an organic phosphorus compound, an internal electron donor compound and an aromatic ether compound as shown in a formula (1). According to the spherical catalyst component, aromatic ether is used as a stability accelerant, an organic phosphorus compound is used as a dissolution accelerant, a hollow spherical catalyst can be prepared, and therefore a hollow spherical polymer is prepared.

The present application belongs to the field of compounds, and particularly relates to a multifunctional compound with fire-retardant, hydrophobic and antibacterial properties and a preparation method thereof; the obtained compound can be used as a fire-retardant, hydrophobic and antibacterial functional surfactant in the field of materials such as foams and emulsion coatings. 17 The present application provides a preparation method of a compound, which comprises: subjecting a substance with a structural formula of formula I R-CH2-OH to an esterification reaction or an ester exchange reaction with an organic phosphorus compound to obtain the compound; wherein R in formula I is a fluorine-containing alkane with C4-C 17 The present application provides a compound with hydrophobic fire-retardant and antibacterial properties and a preparation method thereof; the obtained compound can be used as a surfactant, which can be further used in foaming or polymer emulsion, and can impart excellent hydrophobic, fire-retardant and antibacterial properties to the surface of a foam material or a coating material while using a smaller amount.

A polymer composition is provided that includes about 20 wt.% to about 70 wt.% of a polymer matrix including a polyamide; about 10 wt.% to about 50 wt.% of inorganic fibers; about 5 wt.% to about 30 wt.% of a flame retardant system including an organophosphorus compound; and about 0.1 wt.% to about 5 wt.% of a stabilizer system including a heat stabilizer. The heat stabilizer includes a copper compound. The polymer composition exhibits an initial tensile strength and an aged tensile strength after exposure to a temperature of 200° C. for 1,000 hours. The ratio of the aged tensile strength to the initial tensile strength is about 0.5 or greater.

This invention discloses a silver-catalyzed method for synthesizing benzo[d]isothiazol-3(2H)-one via sulfur-nitrogen atom exchange, belonging to the field of organic synthesis technology. The method uses benzodisulfonic acid ketone compounds and azide compounds as raw materials, and, under the action of a silver catalyst, inorganic base, and organophosphorus compounds, with acetonitrile as the solvent, undergoes a heated reaction followed by separation and purification to obtain the target product. This invention achieves molecular skeleton editing of benzodisulfonic acid ketone through S-N atom exchange. The reaction conditions are mild, require no inert gas protection, are simple to operate, exhibit good functional group tolerance, and achieve high yields. It can be applied to the later-stage transformation of active molecules and drug molecules, providing a new route for the efficient synthesis of benzo[d]isothiazol-3(2H)-one compounds.

The invention belongs to the technical field of olefin polymerization, and discloses a catalyst component for olefin polymerization reaction, a preparation method of the catalyst component, a catalyst and application of the catalyst component. A mode I comprises the following steps: (1) reacting a magnesium-containing compound, an aluminum-containing substance, an organic epoxy compound and an organic phosphorus compound to obtain a magnesium-containing reaction solution; the aluminum-containing substance is metal aluminum and / or aluminum trihalide; (2) reacting the magnesium-containing reaction liquid with an acyl halide compound; reacting with a first titanium-containing compound to obtain a catalyst component; optionally adding a first electron donor compound before and / or after the reaction with the first titanium-containing compound, and reacting; and (3) reacting the catalyst component obtained in the step (2) with a second titanium-containing compound to obtain the catalyst component, and optionally adding a second electron donor compound before and / or after the reaction with the second titanium-containing compound, and reacting. The polymer powder obtained by adopting the catalyst provided by the invention has obviously improved bulk density.

The present invention provides a methanol fuel engine lubricating oil composition comprising the following components: (A) an organophosphorus compound, accounting for 0.05% to 10% of the total mass of the composition; (B) a phenolic ester, accounting for 0.05% to 5% of the total mass of the composition; (C) polyisobutylene succinimide, accounting for 2% to 30% of the total mass of the composition; (D) a salicylate and / or a sulfurized alkylphenol, accounting for 0.2% to 10% of the total mass of the composition; (E) a zinc dialkyl dithiophosphate, accounting for 0.2% to 10% of the total mass of the composition; (F) an ashless friction modifier, accounting for 0.05% to 5% of the total mass of the composition; (G) a polymethacrylate, accounting for 2% to 30% of the total mass of the composition; and (H) a major amount of a lubricating oil base oil. The structure of the organophosphorus compound is described in the specification. The methanol fuel engine lubricating oil composition of the present invention has excellent anti-wear, friction-reducing, and antioxidant properties, and can inhibit the corrosion of methanol fuel on the engine.