10 results about "Phosphonite" patented technology

The invention discloses a display protective film and a preparation method thereof, and relates to the technical field of film materials. When the display protective film is prepared, nano silicon dioxide is sequentially reacted with 2-(p-aminophenyl) ethyltriethoxysilane, 1-pyrazole methanol and zinc chloride to prepare modified nano silicon dioxide; the preparation method comprises the following steps: polymerizing ethylene glycol, dimethyl terephthalate, dimethyl phosphonite and dimethyl 4-pyridyl-4-pimelate to prepare polyester; the preparation method comprises the following steps: reacting polyester with 1-bromohexane to prepare modified polyester; and mixing the modified polyester, the modified nano silicon dioxide and a reversible cross-linking agent, and carrying out melt extrusion, sheet casting and two-way stretching to obtain the display protection film. The prepared display protective film has excellent antibacterial, self-repairing and mechanical properties.

The invention discloses a long glass fiber reinforced polyurethane composite material and a preparation process and application thereof.The long glass fiber reinforced polyurethane composite material adopts calcium ion doped zirconium-based MOF and is modified through phosphite to form a P-Br reaction layer, doped calcium ions are used for replacing part of zirconium-hydroxyl coordination sites, a non-catalytic metal center is formed, and the long glass fiber reinforced polyurethane composite material is obtained. According to the present invention, the aromatic halide coupling and cyclization reaction tendency of the bromination system during the combustion process is weakened, the material can efficiently capture the bromine free radical in the gas phase during the combustion, and the rapid chemical reaction is performed on the P-H bond in the phosphite group and the bromine free radical to generate the stable P-Br structure so as to improve the combustion stability of the material; the bromine free radicals are prevented from participating in generation of toxic substances such as hydrogen bromide or bromo-dioxin, the release amount of toxic flue gas and corrosive gas in the combustion process is remarkably reduced, the safety of the composite material in a fire scene is further improved, and the composite material can meet the strict standard of building door and window materials for low smoke and low toxicity and is suitable for popularization and application. And personnel escape and rescue safety can be effectively guaranteed.

The invention relates to a method for co-production of alkyl diphenyl phosphonate and pentaerythritol diphosphonate, which is characterized in that according to the method, trialkyl phosphite as shown in a formula I and pentaerythritol diphosphonate as shown in a formula II are used as reaction raw materials, a fluorine-containing sulfonic acid compound is used as a catalyst, and continuous preparation is carried out in a tubular reactor, the alkyl diphenyl phosphonate as shown in a formula III and the pentaerythritol diphosphonate as shown in a formula IV are obtained. By simultaneously carrying out transesterification and Abrchiff rearrangement, the invention provides a low-cost target product preparation method which is simpler to operate and can be continuously and stably prepared in a tubular reactor, and the products are all efficient flame retardants; and the process route is simple and easy to operate, the safety coefficient is high, reaction products are easy to separate, and byproducts are not easy to generate at high temperature.

The invention relates to the technical field of shale, in particular to a nano tracer agent and a shale matrix pore water content calculation method, and the nano tracer agent comprises hexamethyl phosphonite triamide (HMPT) (boiling point is 233 DEG C), n-decane (C10H22) (boiling point is 233 DEG C) and radioactive reagent sodium iodide. Through a tracer experiment, the water content in the pores of the shale matrix can be calculated by utilizing the tracer concentrations of different pores, and the problem of water content calculation is solved from the microscopic distribution level.

The invention relates to an adsorption type retarder, a retarding type authigenic acid plug removal liquid and a preparation method of the retarding type authigenic acid plug removal liquid, and belongs to the technical field of oil and gas development. The preparation method of the adsorption type retarder comprises the following steps: S1, dissolving n parts of polyethyleneimine in a solvent according to the amount of substance, dropwise adding 2x parts of bromoethane, and reacting; s2, adding triethylamine, uniformly stirring, and dropwise adding y parts of diethyl phosphonite for reaction; and S3, carrying out reduced pressure distillation on the reaction product prepared in the step S2, hydrolyzing, precipitating, washing and drying. The retarding type self-acidogenic blocking removal liquid comprises the following components in percentage by mass: 0.3%-2.0% of the adsorption type retarding agent, 15%-40% of an acid generator, 5%-15% of a fluorine source, 0.8%-3.0% of a corrosion inhibitor, 0.5%-2.5% of an iron ion stabilizer, 0.5%-1.0% of a discharge aiding agent and the balance of water. The blockage removing liquid can be used for inhibiting corrosion of a tubular column at high temperature, controlling the reaction rate of acid rocks, protecting a rock matrix to the greatest extent, avoiding waste of acid liquid, forcing the acid liquid to penetrate into the deep part of a stratum, and realizing efficient and accurate removal of blockages.

The present application relates to a kind of catalytic system for olefin hydroformylation reaction and the method of olefin hydroformylation reaction;Catalytic system includes: fluorine-containing bisphosphinite ligand Ln and rhodium-manganese bimetallic synergistic system.The present application also relates to the preparation method of fluorine-containing bisphosphinite ligand Ln.The fluorine-containing bisphosphinite ligand of the present application is creatively introduced, and its fluorine-containing structure can significantly enhance the chemical inertness of ligand molecule itself, effectively resist decomposition, hydrolysis and degradation under high temperature.The introduction of manganese can not only adjust the catalytic performance of rhodium center through electronic effect, but also can form synergistic effect with rhodium in the reaction, and stabilize the key reaction intermediate, so as to enhance the firmness of the entire catalytic framework at the molecular level, further inhibit the precipitation and agglomeration of rhodium metal and inactivation.In propylene hydroformylation reaction, the conversion rate is generally as high as 99%;In the wide process parameter interval, the conversion rate is not less than 96%, the activity window is wide, and it has great industrial application prospect and economic benefit.

The invention relates to a preparation method of methyl phosphite, which comprises the following steps: mixing methyl phosphonium dichloride with water for first reaction to generate a liquid-phase intermediate and gas-phase hydrogen chloride; carrying out a second reaction on the liquid-phase intermediate and butanol to generate methyl phosphite and gas-phase hydrogen chloride; and meanwhile, introducing protective gas to separate out gas-phase hydrogen chloride, thereby obtaining the methyl phosphite. According to the preparation method disclosed by the invention, excessive butanol does not need to be used, so that alkyl chlorinated hydrocarbon by-products are prevented from being generated while full reaction synthesis of the methyl phosphite is realized, and the yield of the methyl phosphite is favorably improved.

A stabilized polymeric composition is disclosed comprising an organic polymeric material to be stabilized and a stabilizer composition comprising: at least one inorganic UV blocker, at least one hindered amine light stabilizer compound, at least one hindered phenol antioxidant compound, at least one phosphite or phosphonite compound, at least one thioester, and at least one flame retardant, wherein the stabilizer composition provides effective ultraviolet (UV) light stability, thermal stability, and gas fade resistance to the stabilized polymer even when hindered hydroxybenzoic acid esters, organic UV absorbers, acid scavengers, and / or dialkylhydroxylamines are not present.

The present invention relates to a stabilized polymer composition comprising an organic polymer material to be stabilized and a stabilizer composition comprising at least one UV absorber selected from the class of o-hydroxyphenyl-triazine UV absorbers; a secondary hindered amine light stabilizer (sec.-HALS); at least one antioxidant selected from the group consisting of hindered phenols, phosphites, phosphites, or any mixture thereof; a tertiary hindered amine light stabilizer (tert.-HALS); an alkoxylated alcohol; and optionally a hindered benzoic acid ester, which is more resistant to discoloration due to gas discoloration and thermal oxidation compared to polymer compositions in which the stabilizer composition does not comprise a tertiary HALS stabilizer and an alkoxylated alcohol. Further, a method for manufacturing a stabilized article is provided, the method comprising adding the stabilized polymer composition to a device or method for performing: industrial molding; industrial fiber manufacturing; an industrial tape; and extruding the sheet.

According to an exemplary aspect of the invention, a method for producing cellulose fibers or membranes is provided, the method comprising the step of: dissolving pulp in a cationic 1,5,7-triazabicyclo[4.4.0]dec-5-enium [TBDH] selected from the group consisting of formulas a), b), and c). + In partial and anionic ionic liquids, to provide spinning solutions, wherein R, R 2 R 3 R 4 R 5 R 7 R 8 R 9 and R 10 Each is either H or an organic group, and X ‑ Selected from: halide ions, halide-like ions, carboxyl ions, alkyl sulfite ions, alkyl sulfate ions, dialkyl phosphite ions, dialkyl phosphate ions, dialkyl phosphonite ions, and dialkyl phosphonate ions; extruding the spinning solution through a spinneret to form one or more filaments; and selected from the steps of: spinning cellulose fibers from a solution and extruding cellulose membranes from a solution.