24 results about "Phosphonic Acid Esters" patented technology

To provide a polycarbonate resin composition which is excellent in heat stability and moisture heat resistance, yields a molded article having damping properties, and maintains excellent long-term damping performance.SOLUTION: A resin composition contains, with respect to 100 pts.wt. of (A) a polycarbonate resin (component A), 5 to 50 pts.wt. of (B) a damping elastomer (component B), and 0.001 to 1 pts.wt. of (C) at least one compound (component C) selected from the group consisting of a phosphate compound (component C-1) excluding trimethyl phosphate and a phosphonic acid ester (component C-2), wherein the component B is a block copolymer which contains a block derived from a polymer of an aromatic vinyl compound and a block derived from a polymer having isoprene or isobutylene in a part of the monomer, and has a glass transition temperature of -30°C to 10°C.SELECTED DRAWING: None

Provided is an ink-repellent member including an underlying portion containing an inorganic oxide, the ink-repellent member having a fluorine compound bonded to a surface of the underlying portion, wherein the fluorine compound has a chain structure, and is bonded to the surface by forming a phosphonic acid ester structure at each of both ends thereof.

A preparation method of the methacrylated gelatin with the dual functions comprises the following steps: firstly, preparing collagen methylated polymethacrylate, then mixing 5% of collagen methylated polymethacrylate, 0.2% of trimethylbenzoyl phosphonate, 10 mg / ml of a herba houttuyniae extract and 20 micrograms / ml of nifedimab, and carrying out uniform mixing, so as to obtain the methacrylated gelatin with the dual functions, the collagen methylated polymethacrylate and the trimethylbenzoyl phosphonate, the herba houttuyniae extract, the nifedimab and the collagen methylated polymethacrylate, the herba houttuyniae extract and the nifedimab. The methacrylated gelatin is prepared under ultraviolet irradiation, and the loose cross-linked network structure of the methacrylated gelatin can realize continuous release of drugs, so that the demand of continuous and stable drug delivery is met; in addition, the gelatin methacrylamide, the herba houttuyniae extract and the nintedanib are combined to relieve hemorrhagic intestinal adhesion and can regulate inflammation and anti-fibrosis functions.

The present invention provides a resin composition that exhibits excellent conductivity, carbon black shedding prevention, and abrasion resistance, and that can maintain a high molecular weight after solidification extrusion molding, as well as a molded article formed therefrom. [Solution] A resin composition characterized by containing (A) 3 to 15 parts by weight of (B) conductive carbon black (component B) having a DBP oil absorption of 200 to 400 ml / 100 g, (C) aromatic carbodiimide compound (component C) and (D) 0.005 to 1 part by weight of phosphonic acid ester (component D) having an acid value of 0.01 to 0.30 mgKOH / g, per 100 parts by weight of polybutylene naphthalate resin (component A).

The present invention relates to a novel method for synthesizing a polysubstituted pyridine derivative and, more specifically, to a method for synthesizing a 2,3,5-substituted pyridine derivative through a specific ring cleavage reaction. In the synthesis method of the present invention, an enamine structure is formed in situ by using beta keto ester / sulfone / phosphonic acid ester and ammonium acetate and subjected to an aldol condensation reaction with 3-formyl (aza) indole / benzofuran, a cyclization reaction, and a ring-cleavage reaction in that order to synthesize a characteristic pyridine structure having an alkyl / aryl substituent attached to the 2-position thereof, an ester / sulfone / phosphonic acid ester attached to the 3-position thereof, and ortho-aminoaryl / phenol including various substituents attached to the 5-position thereof. In particular, (aza)indole / benzofuran and beta keto ester / sulfone / phosphonic acid ester, which are reaction substrates, are substrates having very high accessibility, and enable the introduction of various substituents, thereby constructing a pyridine skeleton having high biocompatibility into which ortho-aminoaryl or phenol substituents having various substituents are introduced.

The present invention provides: a resin composition which exhibits excellent fluidity, resistance to wet heat and impact resistance and which undergoes little decrease in strength even if subjected to a wet heat treatment; and a molded article comprising same. This polycarbonate resin composition contains: (C) 0.5-6 parts by weight of an acrylic block copolymer (component C) containing a polymer block that contains an acrylic acid ester monomer unit and a polymer block containing a methacrylic acid ester monomer unit; and (D) 0.001-1 parts by weight of at least one type of compound (component D) selected from the group consisting of a phosphonic acid ester and a phosphate metal salt. (C) and (D) being contained relative to 100 parts by weight of a resin component comprising: (A) 40-90 parts by weight of a polycarbonate resin (component A); and (B) 10-60 parts by weight of a copolymer (component B) obtained by polymerizing an aromatic vinyl monomer and a vinyl cyanide monomer. The polycarbonate resin composition is characterized in that the content of the polymer block containing a methacrylic acid ester monomer unit in component C is 25 wt% or more of all blocks.

Provided is a resin composition for obtaining a resin molded product which simultaneously exhibits three excellent effects of flame retardance, heat resistance, and mechanical strength. One aspect of the resin composition of the present invention is obtained by radically polymerizing a monomer mixture containing methyl methacrylate, a phosphorus atom-containing compound (C), and a phosphine compound (D), where the phosphorus atom-containing compound (C) comprises at least one selected from a phosphoric acid ester compound and a phosphonic acid ester compound, and the phosphine compound (D) is represented by Formula (I).[In Formula (I), R1, R2, and R3 each independently represent an aromatic hydrocarbon group having 6 to 12 carbon atoms, or the like].

The present invention provides a method for recovering cobalt, nickel, manganese and lithium from a waste lithium ion battery by a wet process with a very high recovery rate. The method for recovering valuable metals includes a first solvent extraction step in which an organic solvent is added to a solution that contains lithium and at least one valuable metal selected from the group consisting of magnesium, strontium, aluminum, and transition metals other than manganese, cobalt, and nickel, thereby extracting the valuable metal. The organic solvent includes at least one substance that is selected from the group consisting of a compound represented by formula (1), a phosphonic acid ester, a phosphoric acid ester, phosphinic acid, methyl isobutyl ketone, and trioctylamine. In formula (1), R1 and R2 each independently represent a hydrocarbon group having 6 to 20 carbon atoms.

The present invention provides a conductive polycarbonate resin composition that exhibits excellent surface smoothness, rigidity, and dimensional stability during molding. [Solution] A polycarbonate resin composition comprising (A) 100 parts by weight of polycarbonate resin (component A), (B) 20 to 120 parts by weight of glass flakes (component B) having a number average particle size of 5 to 160 μm and an average thickness of 0.1 to 1.5 μm, (C) 20 to 60 parts by weight of polyester resin (component C), (D) 1 to 30 parts by weight of conductive carbon black (component D), and (E) 0.001 to 1 part by weight of at least one phosphate ester (component E) selected from the group consisting of phosphonic acid esters (component E-1) with an acid value of 0.01 to 0.30 mg KOH / g, acidic phosphate esters (component E-2) with an acid value of 10 to 200 mg KOH / g, and stearyl acid phosphate zinc salt (component E-3).

The invention discloses an environment-friendly water-based paint remover for airplanes as well as a preparation method and application of the environment-friendly water-based paint remover. The water-based paint remover comprises the following raw materials: a paint removal main agent, a corrosion inhibitor, a thickener, a stabilizer and an emulsifier, the paint removal main agent comprises hydrogen peroxide and benzyl alcohol, and the stabilizer is at least one of a polymer polyether compound or nano boron carbide; the mass ratio of the hydrogen peroxide to the benzyl alcohol is (1.5-3.5): 1, the mass concentration of the hydrogen peroxide in the hydrogen peroxide is 15-25%, and the corrosion inhibitor comprises an alkyl phosphonate corrosion inhibitor and CP-NF-12. The water-based paint remover can be well suitable for airplane paint removal operation. The formula is formed by compounding low-toxicity or non-toxic raw materials, and is small in irritation to operators and environment-friendly. The paint remover has a good removal effect on various coatings such as epoxy primer, polyurethane finish paint, water-based primer and overall oil tank anticorrosive paint outside an airplane, and the paint removal speed is high.

The invention relates to a composition for producing PU foams, preferably rigid PU foams, comprising at least one halogen-free polyester polyol and at least one halogenated polyol, at least one physical blowing agent, at least one flame retardant selected from (a) the group of phosphoric acid esters, preferably TCPP, TEP and / or TCEP, in particular TCPP and / or TEP, and / or (b) the group of phosphonic acid esters, preferably DMMP and / or DMPP, red phosphorus, and at least one flame retardant selected from the group of phosphoric acid esters, preferably TCPP, TEP and / or TCEP, in particular TCPP and / or TEP, and / or (b) the group of phosphonic acid esters, preferably DMMP and / or DMPP. And at least one polyisocyanate component, wherein the composition has an index of at least 200.

To provide a synthetic fiber treatment agent capable of suppressing deterioration in performance of a synthetic fiber treatment agent even when stored for a long period of time, a method for filling a synthetic fiber treatment agent into a container, and a method for producing a synthetic fiber. A synthetic fiber treatment agent according to the present invention is characterized by containing a smoothing agent (A) that is a complete ester compound of an alcohol and a fatty acid, a nonionic surfactant (B), and the following phosphorus compound (C), wherein the pH of the 1 mass % aqueous solution of the synthetic fiber treatment agent is 6.0-9.0. The phosphorus compound (C) is at least one selected from a predetermined phosphoric acid ester (C1), an organic phosphorous ester (C2), and an organic phosphonic acid ester (C3).

The present invention provides: a resin particle dispersion which exhibits excellent waterproof fixing properties and fixing properties to non-absorbent surfaces (metal surfaces) and poorly absorbent surfaces (finely coated surfaces) and which is suitable for use in an aqueous ink composition for a writing instrument or the like; and an aqueous ink composition containing said resin particle dispersion.　This resin particle dispersion is characterized by: containing at least resin particles and water; the resin particles containing a (meth)acrylic resin; and in that the (meth)acrylic resin contains a unit A represented by a general formula (I) and at least one of a unit B having a phosphoric acid group and / or a phosphoric acid ester group and a unit C having a phosphonic acid group and / or a phosphonic acid ester group.　In addition, the aqueous ink composition is characterized by containing the resin particle dispersion having these features. (In formula (I), A is a hydrogen atom (H) or a methyl group (CH3), and R is a hydrogen atom (H), an alkyl group having 1-22 carbon atoms, or the like.)

The invention relates to the technical field of mineral processing, in particular to a flotation reagent for improving the separation efficiency of indium tin antimony ores and a preparation method of the flotation reagent, the flotation reagent comprises an activating agent, a collecting agent, an inhibitor, a foaming agent, a pH adjusting agent and an auxiliary agent, the collecting agent is a mixed solution of N, N-diethyldithiocarbamate, N-phenylacetylhydroxamic acid (NPHA) and sodium carbonate, and the inhibitor is a compound complex of sodium hexametaphosphate and water glass. According to the method, diethyl ((2-hydroxyethoxy) methyl) phosphonic acid ester (DEHEMP) serves as an activating agent, a mixed solution prepared from N, N-diethyldithiocarbamate, N-phenylacetylhydroxamic acid (NPHA) and sodium carbonate according to a certain proportion serves as a collecting agent, and a compound complex of sodium hexametaphosphate and water glass serves as an inhibitor. The effect of improving the flotation process efficiency is achieved, waste of metal resources can be effectively avoided, the production cost is reduced, and the production benefit is improved.

The present invention provides a resin composition containing a recycled polycarbonate resin that exhibits excellent rigidity, thermal stability, and flame retardancy, and a molded article formed of the same. A resin composition according to the present invention contains: (A) 100 parts by weight of a polycarbonate resin (component A) composed of 1-99 parts by weight of a recycled polycarbonate resin (A-1) and 99-1 parts by weight of a non-recycled polycarbonate resin (A-2); (B) 5-100 parts by weight of at least one inorganic filler (component B) selected from the group consisting of glass fibers (component B-1), carbon fibers (component B-2), and plate-shaped glass fillers (component B-2); (C) 0.01-5 parts by weight of a flame retardant (component C); (D) 0.1-10 parts by weight of a mineral-based inorganic filler (component D); and (E) 0.01-1 parts by weight of at least one phosphate-based stabilizer (component E) selected from the group consisting of phosphonic acid esters (component E-1), acidic phosphoric acid esters (component E-2), and metal salts of acidic phosphoric acid esters (component E-3).

The present invention relates to: a polyolefin-based resin foam particle; a foam particle molded body obtained by in-mold molding of said foam particle; a method for producing said foam particle; and a method for determining the flame retardancy of said foam particle The polyolefin-based resin foam particle contains a polyolefin-based resin and a phosphonic acid ester compound. The phosphorus content P in the foam particle is 0.1-6 mass%. The foam particle satisfies formula (1): {(m215-m235) / m215}×100 / Ptot≤35 (1). In formula (1), m215 is the mass of a foam particle measured in thermogravimetric measurements at 215ºC, m235 is the mass of a foam particle measured in thermogravimetric measurements at 235ºC, and P to t is a numerical value that indicates the mass percentage of phosphorus in the foam particle, and falls within the range 0.001-0.06.

The present invention provides a polycarbonate resin composition which is excellent in flow stability and thermal stability and which provides a molded article with excellent appearance.　The present invention is a polycarbonate resin composition containing (C) 0.001-1.0 part by weight of a phosphonic acid compound (component C) excluding phosphonic acid esters with respect to 100 parts by weight of a resin component composed of: (A) 50.0-95.0 parts by weight of a polycarbonate resin (component A); and (B) 50.0-5.0 parts by weight of a polyester resin (component B).

A refrigerator oil composition containing a base oil (A) and a phosphonic acid ester (B) represented by general formula (1) is used to provide a refrigerator oil composition having excellent wear resistance, seizure and burn resistance, and thermal stability. (In the formula, R1 and R2 each independently represent a C1-8 hydrocarbon group, and R3 represents a C9-40 hydrocarbon group optionally having a hydroxyl group as a substituent)

The present invention provides a polycarbonate resin composition that exhibits excellent surface smoothness, rigidity, and dimensional stability during molding. [Solution] A polycarbonate resin composition containing (A) 100 parts by weight of polycarbonate resin (component A), (B) 5 to 120 parts by weight of glass flakes (component B) having a number average particle size of 5 to 150 μm and an average thickness of 0.1 to 1.5 μm, and (C) 0.001 to 1 part by weight of at least one phosphate ester (component C) selected from the group consisting of phosphonic acid esters (component C-1) with an acid value of 0.01 to 0.30 mg KOH / g, acidic phosphate esters (component C-2) with an acid value of 10 to 200 mg KOH / g, and stearyl acid phosphate zinc salt (component C-3).

Provided is a method for preparing specific bisphosphonate compounds and their ester derivatives. In this method, specific bisphosphonate compounds such as medronic acid are prepared via the reaction of the corresponding isopropyl ester with (i) trimethylsilyl bromide or trimethylsilyl iodide or (ii) trimethylsilyl chloride and an alkali metal iodide or bromide; followed by treatment with a liquid containing water. The above method surprisingly gives the desired compounds despite the relatively bulky ester group such as isopropyl in the starting bisphosphonate ester.

Provided are: a hydrocarbon terminal group-containing compound capable of forming a cured film excellent in water repellency, slipperiness, ease of soil removal, and abrasion resistance; a surface treatment agent containing the compound; and an article surface treated with the surface treatment agent.　This hydrocarbon terminal group-containing compound has at least one C3-32 linear, branched, or cyclic monovalent hydrocarbon terminal group and has at least one reactive phosphonic acid group or phosphonic acid ester group at the other molecular terminal through a divalent or higher linking group bonded to the hydrocarbon terminal group.

To provide a method for producing oligonucleotides that can suppress the formation of by-products. [Solution] A method for producing an oligonucleotide having a phosphate ester bond by oxidizing an oligonucleotide precursor having a phosphite ester bond or a phosphonic acid ester bond with an oxidizing agent, wherein the oxidizing agent is a compound represented by formula (I) (excluding 2,2-dipyridyl disulfide) (the definition of the symbols in the formula is as described in the specification). JPEG2026110729000086.jpg844

A positive electrode for a secondary battery including a positive electrode current collector, and a positive electrode active material layer supported on the positive electrode current collector, in which the positive electrode active material layer contains active material particles, a binder, and an organic phosphorus compound that is solid at room temperature. The organic phosphorus compound is, for example, selected from the group consisting of a phosphonic acid and a phosphonic acid ester each including an alkyl group having 1 to 17 carbon atoms.

A core-shell type polymeric particle may exhibit good dispersibility in an aqueous medium and excellent flame retardance. A core-shell type polymeric particle may include a core including a hydrophobic polymer (c) and a shell including a copolymer having a repeating unit (a) derived from vinyl phosphonic acid or a vinyl phosphonic acid ester and a repeating unit (b) of formula (α):wherein Ra is H or a methyl group, Rb is a single bond or a carbonyl group, and ring Q1 is a substituted or unsubstituted 4 to 10 membered nitrogen-containing heterocycle.