315 results about "Organic phosphates" patented technology

A process is provided for the production of 1,1,1,3,3-pentachloropropane. The process comprises: (a) producing a product mixture in a reactor by reacting carbon tetrachloride and vinyl chloride in the presence of a catalyst mixture comprising organophosphate solvent, iron metal and ferric chloride under conditions sufficient to produce 1,1,1,3,3-pentachloropropane; (b) subjecting the 1,1,1,3,3-pentachloropropane containing product mixture from step (a) to evaporation such that a fraction enriched in 1,1,1,3,3-pentachloropropane is separated from the product mixture and a bottoms fraction results which comprises the iron metal/ferric chloride catalyst components and heavy end by-products; and (c) recycling at least a portion of the bottoms fraction from step (b) to the reactor.

A flame retardant thermoplastic composition comprises: a poly(arylene ether); an impact modifier; a polyolefin; a phosphoric acid salt selected from the group consisting of melamine phosphate, melamine pyrophosphate, melamine orthophosphate, diammonium phosphate, monoammonium phosphate, phosphoric acid amide, melamine polyphosphate, ammonium polyphosphate, polyphosphoric acid amide, and combinations of two or more of the foregoing; a metal hydroxide; and an organic phosphate wherein the amount of phosphoric acid salt by weight is greater than or equal to the amount of organic phosphate by weight. The flame retardant composition is may be used in the production of electrical wires.

A flame retardant thermoplastic composition comprising a poly(arylene ether), a block copolymer, a liquid polyolefin, and a flame retardant additive composition. The flame retardant additive composition comprises a metal hydroxide, an organic phosphate, and a phosphoric acid salt selected from the group consisting of melamine phosphate, melamine pyrophosphate, melamine orthophosphate, melem polyphosphate, melam polyphosphate, diammonium phosphate, monoammonium phosphate, phosphoric acid amide, melamine polyphosphate, ammonium polyphosphate, polyphosphoric acid amide, and combinations of two or more of the foregoing. The block copolymer comprises a block that is a controlled distribution copolymer having terminal regions that are rich in alkylene units and a center region that is rich in aryl alkylene units. The flame retardant composition may be used in the production of covered conductors.

The invention discloses a medicament for treating composite water in a hot water boiler. The medicament comprises the following components by mass percent: 0.1-3% of inorganic phosphate, 0.1-2% of organic phosphoric acid and/or organic phosphate, 0.1-4% of component A, 0.1-3% of component B, 0.6-1.0% of organic amine deoxidizer, 0.1-2% of tannin and/or chitosan and the balance of water, wherein the mass percent of the components is 100%, the component A is one or more of an organic antisludging agent, an organic dispersant and an organic dispersible antisludging agent, and the component B is one or more of an organic carboxylic acid corrosion inhibitor, an organic carboxylate corrosion inhibitor and sodium methylene dinaphthalenesulfonate. The invention further discloses a preparation method and a use method of the medicament, the preparation process is clean, and the medicament is low in toxicity for body health and environment in the using process. The medicament is excellent in corrosion resistance and scale inhibition effects and simple and convenient to store and transport, and the corrosion and scale inhibition effects cannot be reduced after the medicament is stored and transported for a long term.

The present invention provides a building material derived from straw, such as rice straw, that has significantly improved fire-resistance properties over traditional cellulose-based materials. In one embodiment, the invention provides a method of fabricating a board from milled rice straw. The milled rice straw is blended with a binder to form a mixture. The mixture is then formed into a mat with sufficient size to achieve a predetermined board thickness and density. The mat is then pressed into the board. In another embodiment, the present invention provides a fire resistant board that includes milled rice straw, a resin binder, and a fire retardant material such as an organic phosphate, zinc borate, aluminum trihydrate, sodium silicate, or even rice hulls.

A flame retardant additive composition comprising a phosphoric acid salt selected from the group consisting of melamine phosphate, melamine pyrophosphate, melamine orthophosphate, diammonium phosphate, monoammonium phosphate, phosphoric acid amide, melamine polyphosphate, ammonium polyphosphate, polyphosphoric acid amide and combinations of two or more of the foregoing; a metal hydroxide; and an organic phosphate. The flame retardant additive is useful in a wide range of thermoplastic compositions.

Fluorochemical free aqueous coating compositions are disclosed. The compositions comprise a film-forming polymer and an organophosphate surfactant. The compositions exhibit superior wetting and leveling properties compared to fluoroaining sulfur based surfactants. Inventive compositions are particularly suitable for use as floor finishes. Methods of makinge aqueous coating compositions are also described.

The present invention provides a catalytic system that can be used to prepare by polymerization diene elastomers comprising polyisoprenes and polybutadienes. The invention also provides a process for the preparation of the catalytic system and to a process using the catalytic system to prepare diene elastomers comprising polyisoprenes having a high cis-1,4 linkage content and polybutadienes. The catalytic system according to the invention is based on (a) a conjugated diene monomer, (b) an organic phosphoric acid salt of a rare earth metal, (c) an alkylating agent consisting of an alkylaluminium of the formula AlR₃ or HAlR₂, and (d) a halogen donor consisting of an alkylaluminium halide, and is such that said salt is suspended in at least one inert and saturated aliphatic or alicyclic hydrocarbon solvent and, the “alkylating agent:rare earth salt” molar ratio ranges from 1 to 5.

The present invention relates to a method for preparing an organic compound, in particular to a method for preparing an organic phosphate nucleator, which includes the following steps: phosphorylation reaction, hydrolyzation and salification. Since the solvent for the phosphorylation reaction adopts halogenated hydrocarbon instead of benzene series compounds, which is cheap, the cost can be reduced, and since the yield of the organic phosphate synthesized with the halogenated hydrocarbon used as the solvent is higher, the yield of the final product, the organic phosphate, is greatly increased. Moreover, since the solvent does not adopt the benzene series compounds, toxicity is low, non-burning operation is safe, environment can be protected, recycling is convenient, and the diaryl-substituted organophosphate metal salt used as nucleator prepared by the method has obvious effect in the improvement of the processing property of resin.

A sensor and method for detecting biological and chemical agents comprising metal interdigitized electrodes coated with hybrid polymer-based conducting film and an instrument for applying electrical voltage to the electrodes and registering the change in electrical current. The hybrid film also comprises indicator biomolecules encapsulated within the film or attached to it. The bioindicator molecules preferably comprise enzyme acetylcholinesterase. When these indicator biomolecules come in a contact with a pathogen, chemical and/or morphological changes occur in the film and electrical current flowing through the electrodes is modulated. The pathogen comprise inhibitors of enzymes, preferably organophosphates, thiophosphates or phosphonates. The change in current indicates the presence of a biological and chemical agent and is registered.

The invention relates to a halogen-free flame retardant, which is prepared by compounding an organic phosphoric acid compound with polyhydric alcohol according to the mass ratio of (1:10)-(10:1). A halogen-free flame-retardant polyolefin composition comprising the halogen-free flame retardant is prepared from 60-90 parts by weight of polyolefin resin, 10-40 parts by weight of halogen-free flame retardant and 0.05-2 parts by weight of antioxygen. The halogen-free flame-retardant polyolefin composition disclosed by the invention is used for preparing panel, fibre, film or foam materials. According to the invention, the traditional inorganic phosphoric acid substances are replaced by four micromolecular organic phosphoric acid substances used as the acid source and air source components of a halogen-free expansion flame-retardant system; organic phosphate is easier to carry out esterification reaction with polyhydric alcohol in the reaction process; due to the reaction extrusion blending manner, all fire retardant components and matrix resin are ensured to be dispersed uniformly; the blending efficiency is high; the pre-reaction phenomenon caused by long-time staying of materials in a screw can be prevented, thus being beneficial to improving the use efficiency of the flame retardant.

The present invention relates to a catalytic system usable for the preparation of polybutadienes by polymerisation, to a process for the preparation of said catalytic system and to a process for the preparation of polybutadienes by means of this catalytic system.

A catalytic system according to the invention is based on at least:

• • a conjugated diene monomer,
  • an organic phosphoric acid salt of one or more rare earth metals, said salt being in suspension in at least one inert, saturated and aliphatic or alicyclic hydrocarbon solvent,
  • an alkylating agent consisting of an alkylaluminium of formula AlR₃ or HAlR₂, the “alkylating agent:rare earth salt” molar ratio being greater than 5, and
  • a halogen donor which belongs to the family of alkylaluminium halides with the exception of alkylaluminium sesquihalides,
  • and, according to the invention, said catalytic system comprises said rare earth metal(s) in a concentration equal to or greater than 0.005 mol/l.

The invention discloses a halogen-free flame-retardant PBT which is prepared by the following components according to the percent by weight: 30-70 percent of PBT resin, 0-50 percent of alkali-free glass fiber, 13-35 percent of halogen-free flame retardant, 0-20 percent of toughening agent, 0.5-1 percent of acid absorption agent, 0.5 percent of antioxidant, 0.5-5 percent of colorant and 0.5-1 percent of processing aid. Low-valent organic phosphate flame retardant or the compound of the lower-valent organic phosphate flame retardant and melamine polyphosphate is taken as the halogen-free flamen retardant of the halogen-free flame-retardant PBT, and the acid absorption agent, the toughening agent, the antioxidant and the processing aid are added to the halogen-free flame retardant, thereby the halogen-free flame-retardant PBT which has good flame-retardant effect, high flame-retardant grade, different colors, high mechanical strength and good thermal stability is prepared. The method for preparing the halogen-free flame-retardant PBT has the advantages of easy operation.

Provided herein are compositions and related methods for delivering an organophosphatase to the CNS. The methods include systemic administration of a bifunctional fusion antibody comprising an antibody to a receptor expressed on the surface of the blood-brain barrier (BBB receptor) and an organophosphatase. In some embodiments, the compositions described herein are used to treat a subject suffering from or at high risk of exposure to an organophosphate (e.g., a nerve gas).

The invention discloses a high-heat resistance halogen-free fire-retarding polyphenylether and polystyrene composite and a preparation method thereof. The composite comprises polyphenylene oxide resin, polystyreneresin, toughener, processing aid and a halogen-free fire retarding agent, wherein the halogen-free fire retarding agent is microencapsulated coated red phosphor and is used in combination with one or more of organic phosphates or phosphite esters in a separate charging mode. The components are subjected to melt blending as well as plasticization and blending in a double screw extruder to form the composite material of the invention. The method is continuous in processing process and high in production efficiency. The composite material of the invention can radically solve the problems of the prior fire retarding art such as halogen content of the fire retarding agent, easy precipitation, low fire retarding level and the like. Products made from the composite material are high in heat resistance, smooth in surface, environmentally-friendly, free from any halogen substance and applicable in the fields of electronic appliances, office equipment, fluid engineering and the like.

Disclosed is a snow thawing agent comprising, in addition to formate as a principal component, additives, such as silicate, sodium metalluminate, sodium carbonate and organophosphate containing phosphoryl. The snow thawing agent according to the present invention has strong thawing capability with low erosion on carbon steel metals and concrete, especially much low erosion on aluminium magnesium alloy materials used in aircrafts; the present invention is easily biodegradable at low oxygen consumption, and thus is an environmentally-friendly, efficient and fast snow thawing agent.

This invention relates to preparation method of a transparent polypropylene, which takes nano silicasol and organophosphate type polypropylene nucleating agent as materials. Mix the nanometer silicasol and organophosphate type polypropylene nucleating agent and polypropylene by weight ratio of 0.05- 1: 0.1- 1: 100 at 160 to 230deg C.

The invention discloses a high thermal deformation halogen-free flame retardant material and a preparation method thereof. The flame retardant material comprises the following components in parts by mass: 20-50 parts of polybutylene terephthalate; polybutylene terephthalate 10-40 parts of ethylene glycol formate; 15-24 parts of organic phosphate flame retardant; 1-3 parts of phosphorus liquid flame retardant; 10-30 parts of glass fiber; 2-4 parts of inorganic oxide. The preparation method of the high-heat deformation halogen-free flame-retardant material provided by the present invention simplifies the preparation process of the halogen-free flame-retardant material compared with the prior art, and reduces the production cost of the halogen-free flame-retardant material; the halogen-free flame-retardant material prepared by the present invention By adopting the components provided by the invention and the proportions among the components, compared with the existing flame retardant materials, the heat distortion temperature, glow wire temperature and flame retardancy are higher, and it has good mechanical properties.

The provided new PP nucleating agent belongs to the mixture o a plurality if organic phosphates with diaryl group, can improves the bending modulus heat distortion temperature of AA resin obviously, can change and select different agent structure in same process lien and device to meet variable requests. This invention simplifies process.

The invention relates to a green environment-friendly polyether carboxylic acid ester corrosion inhibition and scale inhibitor (APEL) and preparation method thereof. The corrosion and scale inhibitor is a phosphorus-free, nitrogen-free and biodegradable water treatment agent, which is applicable to industrial recirculated cooling water and is used for water quality corrosion inhibition and scale inhibition treatment. The corrosion inhibition scale inhibitor of the present invention is obtained by free radical copolymerization of polyether carboxylic acid ester reactive monomers and vinyl unsaturated double bond monomers, which comprise the following structural general formula: wherein A is monomer copolymerized constitutional repeating unit containing vinyl unsaturated double bond; R is Hor C1 to C5 low carbon alkyl; the degree of polymerization of x is 1 to 5000; the degree of polymerization of y is 1 to 5000; repeating unit amount of m is 1 to 100. The carboxylic acid ester corrosion inhibition and scale inhibitor has good compatibleness, can be used alone or in combination with other water treatment agents, like organic phosphate, zinc salt corrosion inhibitor.

The present invention relates to a process for the preparation random copolymers of butadiene and isoprene, essentially consisting of reacting a catalytic system in the presence of butadiene and isoprene and using, as catalytic system, a system based on at least:—a conjugated diene monomer,—an organic phosphoric acid salt of one or more rare earth metals,—an alkylating agent consisting of an alkylaluminium of the formula AlR₃ or HAlR₂, and—a halogen donor consisting of an alkylaluminium halide, said salt being in suspension in at least one inert, saturated and aliphatic or alicyclic hydrocarbon solvent, which is included in said catalytic system, and the “alkylating agent:rare earth salt” molar ratio falls within a range of from 1 to 8, and performing the copolymerisation reaction in an inert hydrocarbon polymerisation solvent or without solvent. These copolymers are in particular such that the butadiene and isoprene units which they comprise each have an elevated content of cis-1,4 linkages.

The invention discloses a positive electrode of a lithium ion secondary battery. The positive electrode comprises a positive electrode current collector and positive electrode diaphragms distributed on the positive electrode current collector, wherein the positive electrode diaphragm contains a compound which can be separated from/inserted into lithium ions, a binder, a conductive agent and organic phosphate. The positive electrode of the lithium ion secondary battery contains organic phosphate and can effectively improve the interface of the positive electrode and an electrolyte, inhibit oxygenolysis of a non-aqueous electrolytic solution on the surface of the positive electrode and enhance high-temperature storage performance of the lithium ion secondary battery.

The invention provides a polypropylene composition and a polypropylene material as well as an application thereof. The polypropylene composition comprises polypropylene, a nucleating agent and an antioxidant, wherein the nucleating agent comprises a crystal form alpha nucleating agent and a crystal form beta nucleating agent, the crystal form alpha nucleating agent is selected from one or more of an inorganic crystal form alpha nucleating agent, a sorbitol nucleating agent and an organic phosphate nucleating agent, and the crystal form beta nucleating agent is selected from one or more of a mixture of binary acid and an II Ath group of metal salts, a rare earth crystal form beta nucleating agent and an amide nucleating agent. The polypropylene material prepared from the polypropylene composition provided by the invention can be used for well integrating effects of relatively low tensile strain, relatively high tensile strength and relatively good heat resistance and long-term creeping strength, and has great industrial application prospects.