158 results about "Triphosphoric acid" patented technology

The invention relates to a drag-reducing abrasion-resisting solventless coating for a pipeline as well as a preparation method and application thereof. The drag-reducing abrasion-resisting solventless coating contains an A component and a B component, wherein the mass percentage of raw materials is as follows: the A component includes the following materials in percentage by weight: 30%-40% of epoxy resin, 5%-10% of toughening resin, 4%-8% of active diluents, 4%-8% of zinc phosphate, 0.2%-0.5% of levelling agents, 0.2%-0.5% of defoaming agents, 0.4%-0.8% of dispersing agents, 0.2%-1.0% of anti-settling thickening agents, 8%-20% of ferric oxide red powder, 5%-15% of aluminium triphosphate and 5%-15% of white pottery magnetic powder; the B component includes the following materials in percentage by weight: 5%-20% of modified amine and 2%-10% of modified polyamide; and the A component and the B component are matched for use according to the mass ratio of 3-5:1. The drag-reducing abrasion-resisting solventless coating is prepared through material blending, dispersion, grinding, filtration and packaging and can be applied in delivery pipelines of oil and natural gases. The drag-reducing abrasion-resisting solventless coating does not contain volatile solvents and has the advantages of good adhesive force, flexibility, salt spray resistance and solvent resistant property, smooth coating surface, good drag-reducing abrasion-resisting effect, convenient construction, resource saving and good popularization and application prospect.

The invention provides a recombinant microorganism for producing cytidine and a method for producing the cytidine from the recombinant microorganism. A degradation and use gene of the cytidine is knocked off, and the gene encodes cytidine ammonialyase, ribonucleotide hydrolase, cytidine/uridine kinase and nucleoside transporter. Meanwhile key enzymes in biological synthesis process of the cytidine are over-expressed, including degrading cytidine triphosphoric acid to cytidine triphosphoric acid pyrophosphorylase of the cytidine monohosphoric acid, and catalyzing the cytidine monohosphoric acid to cytidine monohosphoric acid phosphorylase of the cytidine. In addition, pyrimidine nucleoside process is subjected to genetic engineering reform, and feedback inhibition of the synthesis process is relieved. By using a biological fermentation method, the cytidine yield greater than 20g/L can be achieved for a recombinant strain in a fermentation tank of 5L, industrial on-scale production can be achieved, and meanwhile the recombinant microorganism is low in cytidine production cost, small in pollution, green and environmental-friendly and relatively high in popularization and application value.

The invention discloses a disinfectant health-care aromatic hand paper towel and a preparation method thereof. The hand paper towel comprises the following components: softwood sulfite pulp, bamboo-pulp paper fiber, straw pulp, a cationic starch solution, a wet strength agent, a powerful antibacterial agent, an aromatic agent and titanium dioxide, wherein the wet strength agent is polyethylene ethylamine resin, the powerful antibacterial agent is composed of pure-oxygen-based quaternary ammonium salt, Sophora flavescens, common cnidium fruit, honeysuckle, borneol, isatis root, ethanol and distilled water, and the aromatic agent is composed of chitosan, ethanol, essence extract, deionized water, glycerin and triphosphoric acid. The prepared disinfectant health-care aromatic hand paper towel in the invention has the characteristics of no toxicity, harmlessness, environmental protection, highly-efficient antibacterial property and emission of aroma, can efficiently avoid contact-type cross infection with bacteria in public places and is safer and more secure to use.

This invention relates to the field of nucleic acid chemistry, more specifically to the field of compositions of matter that comprise triphosphates of modified 2'-deoxynucleosides and oligonucleotides that are formed when these are appended to the 3'-end of a primer, wherein said modifications comprise NH2 moiety attached to their 3'-hydroxyl group and a fluorescent species in a form of a tag affixed to the nucleobase via a linker that can be cleaved. Such compositions and their associated processes enable and improve the sequencing of oligonucleotides using a strategy of cyclic reversible termination, as outlined in US Patent 6,664,079. Most specifically, the invention concerns compositions of matter that are 5'-triphosphates of ribo- and 2'- deoxyribonucleosides carrying detectable tags and oligonucleotides that might be derived from them. The invention also concerns processes wherein a DNA polymerase, RNA polymerase, or reverse transcriptase synthesizes said oligonucleotides via addition of said triphosphates to a primer.

The invention relates to a chlorinated polyether resin coating and a production method thereof. The coating contains 1 weight part of chlorinated polyether resin, 0.025-0.5 weight parts of chlorinated paraffin wax with chlorine content of 52%, 0.008-0.5 weight parts of acrylic acid-modified fluorocarbon resin, 0.05-3.0 weight parts of dimethylbenzene, 0.01-1.2 weight parts of heavy aromatic solvent, 0.005-0.01 weight parts of dimethyl silicon oil, 0.005-0.25 weight parts of aluminum tripolyphosphate, 0.006-0.5 weight parts of titanium white powder, 0.01-0.4 weight parts of talc powder and 0.005-0.05 weight parts of organic bentonite. The coating is characterized in that: the components are packaged independently and are dried at room temperature to form coating. The coating is excellent in physical property, chemical resistance, salt spray resistance and light fastness, and can be used for the surface protection and coating of steel structure and concrete in corrosive marine environments.

The invention relates to an ammonia diagnosing/measuring reagent box which utilizes the technique of the enzyme contrasting color method and the enzyme jointing method, and belongs to the technical field of the medicine/food/environment test. The main components of the reagent box of the invention mainly include cushion liquid, coenzyme, glutamic acid, adentosine triphosphoric acid, glyceraldehyde-3-phosphate, glutamine synthetase, glyceraldehyde-3-phosphate dehydrogenase and stabilizing agent; the reagent box generates a series of enzymic reactions through the mixing of the samples and the reagent at a certain cubage rate, and then the reactants are positioned under an ultraviolet/visible light analyzer which tests the reducing speed of the absorbency at the main wave length of 340nm, thereby measuring the concentration size of the enzyme. The invention can absolutely get needed measuring result through the ultraviolet/visible light analyzer.

The invention discloses rust-proof paint. The rust-proof paint comprises the following components in parts by weight: 75-80 parts of acrylic emulsion, 20-30 parts of iron red, 5-10 parts of polycarbonate, 10-15 parts of inositol hexaphosphate, 1-3 parts of aluminum dihydrogen tripolyphosphate, 0.5-2 parts of iron phosphating agent, 0.02-1 part of silicon dioxide and 100 parts of water. Compared with the ordinary water-based rust-proof paint, the rust-proof paint provided by the invention has a better rust-proof effect, has a very strong color fixing effect, still does not lose the color and luster after being affected by high temperature and harsh environment for a long time under, and is low in cost.

The invention provides a high-performance two-component epoxy primer for rail transit and a preparation process thereof, belonging to the technical field of paints. The high-performance two-componentepoxy primer comprises a component A and a component B in a weight ratio of 10: (2.3-2.8). The component A is prepared from the following components: solid epoxy resin, liquid epoxy resin, graphene, epoxy silane coupling agent modified nanometer silicon dioxide, pigment and filler, zinc-calcium modified aluminum triphosphate, zinc phosphomolybdate, a thixotropic agent, a wetting dispersant, a leveling agent, an antifoaming agent and a mixed solvent. The component B is prepared from cashew nut shell oil modified phenolic aldehyde amine resin, cardanol modified polyamide resin, xylene, n-butyl alcohol, propylene glycol methyl ether acetate and an amino silane coupling agent. The epoxy primer prepared by the invention has excellent mechanical properties, corrosion resistance, weather resistance and adhesive force, and has good application prospects in rail transit.

The invention provides a freeze-dried microsphere of a PCR reaction agent. The freeze-dried microsphere comprises an enzyme reaction liquid, desoxyribonucleic acid triphosphoric acid, a primer, a template, a biological buffer solution, glucan, trehalose, bovine serum albumin, gelatin, glycerinum, dimethyl sulfoxide, a surfactant, a defoaming agent, a preservative and the like. By means of the freeze-dried microsphere of the PCR reaction agent and the preparing method thereof, the problem that a PCR agent cannot be preserved or transported at a normal temperature in the prior art is solved; theproblems that the PCR agent can hardly be packaged or stored and a freeze-dried powder agent can hardly be quantified are solved. The freeze-dried product comprises a PCR reaction main agent and is convenient to use and saves time, and the contamination introduced in the experiment operation process and the errors of reducing the addition of reaction components are effectively avoided.

The invention discloses an acrylic acid-polyaniline composite modified polyurethane coating which is prepared from modified polyurethane emulsion, waterborne acrylic emulsion, waterborne polyaniline emulsion, diphenylmethane diisocyanate, nano-zinc oxide, nano-zinc phosphate, aluminum oxide, wollastonite, boron nitride, barium sulfate, aluminum triphosphate, diethyl aluminum phosphinic acid, calcium chloride, N-methyl pyrrolidone, a defoaming agent, a dispersing agent, a wetting agent, a flatting agent, glycerol, 8-hydroxyquinoline, epoxy resin, a silane coupling agent, polyethylene wax and water. The acrylic acid-polyaniline composite modified polyurethane coating is good in water resistance and corrosion resistance, excellent in heat resistance and weather resistance, high in strength, high in adhesive force with a base material and long in service life, and has the certain fire resistance.

The invention discloses a whitening and anti-aging aqueous coating for glass sliding doors. The whitening and anti-aging aqueous coating is characterized by being prepared from the following raw materials in parts by weight: 40-50 parts of aqueous polyurethane resin, 15-20 parts of an E-20 epoxy resin emulsion, 7-10 parts of a modified pure acrylic emulsion, 2-3 parts of nano-calcium carbonate, 1-3 parts of dipropylene glycol dimethyl ether, 0.3-0.6 part of alcoholamine diphosphoryloxy glycolic acid titanate, 0.2-0.4 part of fluoro-alkyl polyether modified polysiloxane, 0.5-1.0 part of alkylaryl polyether alcohol, 0.2-0.4 part of dimethicone, 0.3-0.6 part of propyl trimethoxy siloxane, 0.3-0.5 part of nano-montmorillonite, 0.4-0.7 part of vermiculite powder, 0.3-0.4 part of aluminum tripolyphosphate, 0.4-0.8 part of high-gloss powder, 1-2 parts of brightening titanium dioxide and 10-15 parts of deionized water. The aqueous glass coating disclosed by the invention is simple in preparation method, good in adhesion against a glass substrate and high in aging resistance; by adding the brightening titanium dioxide and the high-gloss powder, the brightness is improved; the added modified pure acrylic emulsion has the characteristics of excellent stain resistance, bactericidal property, scrub resistance, weather resistance and the like; and the coating disclosed by the invention is fast in drying speed and a paint film is smooth.

The invention discloses a cell pre-incubation reagent box for detecting cell apoptosis and is characterized in that the cell pre-incubation reagent box comprises a terminal transferase (TdT) for marking a terminal 3' of a DNA, and a dideoxy nucleotide triphosphoric acid (ddNTP) or a triphosphoric acid deoxyribonucleoside (dNTP); the dideoxy nucleotide triphosphoric acid (ddNTP) or the triphosphoric acid deoxyribonucleoside (dNTP) is not marked and is marked in advance as a basic group in a dideoxy nucleotide triphosphoric acid (ddNTP) pair or a triphosphoric acid deoxyribonucleoside (dNTP) pair is added at the terminal3' of a fractured DNA segment after a cell membrane is penetrated through. The method provides a more specific way for detecting cell apoptosis.

The invention relates to a high-energy substance for preventing and treating a neurodegenerative disease of old people. The high-energy substance comprises one or more of compounds and derivatives of the compounds of phosphoenolpyruvic acid, creatine phosphoric acid, acetyl coenzyme A, adenosine triphosphoric acid, L-carnitine, s-adenosylmethionine, guanosine triphosphate, cytidine triphosphate, pyrophosphoric acid, 1,3-diphosphoglycerate and succinyl coenzyme A. The high-energy substance has the benefits as follows: the high-energy substance is used for treating the neurodegenerative disease of the old people, particularly the aged population, so as to delay and prevent dementia; and the high-energy substance is proved to be a novel medicine which is reasonable, safe and economical and used for treating the neurodegenerative disease, particularly senile dementia.

The invention discloses medical rust-removal and antirust paint and a preparation method therefor. The paint is prepared from the following raw materials: styrene, zinc phosphate, phosphoric acid, zinc oxide, zinc chrome yellow, organobentonite, a polyvinyl acetate emulsion, deionized water, ammonium persulfate and aluminum triphosphate. The paint which is applied to medical apparatuses is antirust, the viscosity of the paint is 60-80, the fineness of the paint is 40-60 [mu]m, the flexibility of the paint is 0.2-0.8mm and the adhesive force of the paint is level 1-2; the paint has good antiseptic property, impact resistance within 60-80cm, impact strength of 500-550N/cm, and salt water resistance of not blistering and not falling within 1-3 days; the surface-drying time is 0.1-0.5 hour, the hard-drying time is 8-12 hours and the covering power is 95-115g/cm<2>.

The invention discloses an anti-rust paint for coating the surfaces of ships. The anti-rust paint comprises the following components in parts by weight: 25-35 parts of a styrene-acrylic emulsion, 10-30 parts of inositol hexaphosphate, 2-5 parts of copper powder, 1-3 parts of quartz powder, 2-3 parts of aluminum dihydrogen tripolyphosphate, 0.2-0.5 part of silicon dioxide, 0.05-1 part of calcium oxalate and 100 parts of water. Experimental analysis shows that the anti-rust paint for coating the surfaces of ships can work 20 years under the condition of high salinity, has a better color-fixing effect than the general anti-rust paint, is free from dropping after being subject to long-term water immersion, has strong adhesiveness, can better protect the ships and increase the use value of the ships and has a very broad commercial prospect.

The invention relates to a method for preparing a phosphorus oxide modified microporous molecular sieve shape-selective catalyst. by the method, a microporous molecular sieve ZSM-5 or MCM-22 is used as a matrix, pyrophosphorous acid, hypophosphoric acid, iso-hypophosphoric acid, pyrophosphoric acid, triphosphoric acid or peroxydiphosphoric acid is used as the precursor of a phosphorus oxide, and the phosphorus oxide is loaded on the outer surface of the microporous molecular sieve in an impregnation and temperature programmed calcination method, wherein the mass ratio of the phosphorus oxide to the microporous molecular sieve is (1:6) to (1:20). The obtained shape-selective catalyst provided by the invention has good shape-selection catalytic performance on toluene disproportionation and ethylbenzene disproportionation processes, and the preparation method of the catalyst is simple.

The invention discloses an anticorrosive paint which comprises 4-9 parts of zinc-rich epoxy powder, 5-8 parts of sodium hexametaphosphate, 22-26 parts of water-based acrylic acid modified epoxy resin, 12-16 parts of alkyd resin, 20-30 parts of aluminum tripolyphosphate, 6-9 parts of hydroxyethyl cellulose, 18-24 parts of talcum powder and 4-8 parts of thickener. The anticorrosive paint has the advantages of high brine resistance, favorable weather resistance, favorable corrosion resistance, high adhesive force, high wear resistance and the like.

An industrial preparation process of tetrasodium P<1>,P<4>-di(uridine-5')tetraphosphate is provided. The process includes preparing cyclic triphosphoric acid from a tributylamine salt of UTP by utilizing a carbodiimide type condensating agent; reacting the cyclic triphosphoric acid with a tributylamine salt of UMP to synthesize P<1>,P<4>-di(uridine-5')tetraphosphoric acid; directly salifying the reaction solution, without concentration, with a salt of an organic acid; performing crystallization; performing gradient elution with anion exchange resin after dissociation; subjecting the eluate, without the need of water concentration, to salt removing and water removing through membrane filtration; and then salifying to obtain the high-purity tetrasodium P<1>,P<4>-di(uridine-5')tetraphosphate.The tetrasodium P<1>,P<4>-di(uridine-5')tetraphosphate meeting officinal requirements can be prepared in a large scale by the process.

The invention provides environmental-friendly anti-rusting paint for equipment and a preparation method thereof. The environmental-friendly anti-rusting paint comprises the following components in parts by weight: 19-30 parts of polyvinyl butyral resin, 10-20 parts of organic silicon modified acrylate emulsion, 0.3-0.6 part of methyl benzene sulfonic acid, 0.04-0.08 part of chlorinated paraffin, 2-5 parts of zinc chrome yellow, 2-5 parts of mica iron oxide, 2-5 parts of calcium tripolyphosphate, 1-3 parts of aluminium phosphate, 2-4 parts of bentonite, 3-6 parts of nepheline, 0.6-1.5 parts of carbon black, 0.07-0.12 part of emulsified silicone oil, 0.2-0.5 part of dibutyl phthalate, 0.2-0.4 part of diatomite, 0.1-0.3 part of polyurethane and 32-45 parts of water. The environmental-friendly anti-rusting paint provided by the invention is safe and non-toxic, high in adhesive force and good in anti-rusting performance, wear resistance and impact resistance, and also can remove harmful substances such as free formaldehyde, benzene and VOC (volatile organic compounds) out of the air.

The invention relates to a reagent (kit) for measuring formaldehyde by using an enzyme-multiplied method, an enzyme colorimetric method and an enzyme coupling method as well as a method for measuring the concentration of the formaldehyde, and composition and ingredients of the reagent, belonging to the technical field of food/environmental test. The reagent (kit) comprises the main ingredients of buffer solution, coenzyme, adenosine triphosphoric acid, tetrahydrofolic acid, glyceric aldehyde-3-phosphoric acid, formaldehyde dehydrogenase, formic acid-dihydrofolic acid ligase, glyceric aldehyde-3-glycerol phosphate dehydrogenase and stabilizing agent. The concentration of the formaldehyde is measured by mixing a sample and the reagent according to a certain volume ratio to carry out a series of enzymatic reaction, placing the reactant under an ultraviolet/visible light analyzer and detecting the ascending degree of absorbance at a dominant wavelength of 340nm.

The invention discloses an epoxy polyurethane root-resistant waterproof coating. The epoxy polyurethane root-resistant waterproof coating is characterized by being prepared from the following raw materials in parts by weight: 0.3-0.6 part of a defoamer BYK-354, 0.2-0.4 part of polyester modified polydimethylsiloxane, 20-30 parts of epoxy resin, 7-9 parts of locked polyurethane, 0.1-0.3 part of blocked p-toluenesulfonic acid, 2-3 parts of micro-powder wax, 0.2-0.4 part of a dispersant EFKA015, 30-40 parts of linear-chain polyester resin, 4-6 parts of heavy calcium carbonate powder, 3-4 parts of antimonous oxide, 5-7 parts of fine stone powder, 8-10 parts of neoprene latex, 3-5 parts of silicon oxide, 2-3 parts of aluminum triphosphate, 0.5-1.0 part of phenyltrimethoxysilane, 4-6 parts of calcium carbonate whisker powder, 3-4 parts of polyisocyanate, 5-7 parts of root-resistant auxiliary, 4-6 parts of methyl isobutyl ketone, 5-7 parts of ethylene glycol butyl ether and 8-11 parts of S-1508. The epoxy polyurethane root-resistant waterproof coating has excellent adhesive force, wear resistance, weather fastness, corrosion resistance and the like; the added root-resistant auxiliary has an obvious root resisting effect and is unharmful to the plant root systems and excellent in compatibility with a resin; the epoxy polyurethane root-resistant waterproof coating is simple to prepare, high in adaptability and worthy of popularization.

The invention provides antirust and antibacterial aluminum triphosphate pigment and a preparation method thereof. The preparation method comprises the following steps: (1) preparing aluminum triphosphate sol; (2) preparing aluminum triphosphate powder from the sol; (3) activating the aluminum triphosphate powder with sodium hydroxide; (4) loading silver ions; (5) performing surface treatment of the antirust and antibacterial aluminum triphosphate with a silane coupling agent. The pigment can be applied to ultraviolet curing coating; the formula of the coating comprises the following components: 4-10% of epoxy acrylate, 15-25% of polyester acrylate, 15-27% of monofunctional (methyl) acrylate, 25-35% of bifunctional (methyl) acrylate, 5-15% of trifunctional (methyl) acrylate, 3-7% of adhesion promoter, 4-15% of modified aluminum phosphate, 0.5-2.5% of antirust and antibacterial aluminum triphosphate, 0.5-1.5% of triethanolamine, 1-3% of diphenylketone and 3-6% of photoinitiator.

The invention discloses a waterborne over-rust coating for steel and a preparation method thereof. The preparation method comprises the following steps: weighing acrylic resin, gallic acid, tannic acid, 2-(2-ethoxyethoxy)ethyl acetate, dioctyl phthalate, aluminum dihydrogen tripolyphosphate, zinc yellow, sodium carboxymethyl cellulose, ammonium citrate, ethylene glycol monobutylether, potassium hexacyanoferrate, sodium tetraborate, cetyl vinyl ether and potassium polyoxyethylene laurylether phosphate; stirring the raw materials and grinding, wherein the appearance of a costing film is uniform, flat and bright and the coating film is durable and has good resistance; carrying out surface drying for 5min to 25min and carrying out complete drying for 20h to 24h, wherein the viscosity is 40s to 60s, the flexibility is 0.5mm to 0.9mm, the adhesive force is grade 1 to grade 2 and the moisture resistance and the salt fog resistance are good; immersing into water at 30 DEG C to 40 DEG C for 5d to 9d, wherein the coating film has no bubbles and is not released and the impact resistance strength is 50cmkN/cm to 70cmkN/cm, the coating is used for protecting the surface of metal steel, the solid content is 45 percent to 55 percent and the hardness is 0.6 to 1.

The invention offers detecting reagent boxes for fluorescent augment of mumps virus, which include hemagglutinin gene standards of mumps virus, detecting reagent of fluorescent augment, DNA polymerase and reverse transcriptase. The detecting reagent of fluorescent augment mainly contains buffer solution of one-step RT-PCR, specificity exciters and probes, mixture of deoxidizing triphosphoric acid and nucleoside. The partial sequence of hemagglutinin gene standards of mumps virus is 5'- CTCAAGGACTGTTTGCCTCTTACACCACAACCACCTGCTTTCAAGATACCGGTGATGCTAGTG-3'. The specificity exciters have two sequences: the sequence of upstream exciters is 5'-CTCAAGGACTRTYTGCYTCSTA-3'and the sequence of downstream exciters is 5'-CTCTRGCAT CACCGGTATCTTGAA-3'. The equence of specificity probes is 5'-FAM-ACCACAACCACCTGC-NFQ-MGB-3', in which FAM is reporting fluorescent metakliny, NFQ is non-fluorescent annihilation metakliny, MGB is modifying metakliny. The detecting reagent boxes can detect pathogen nucleic acid directly. At the early stage of mumps disease, specificity gene of mumps virus can be detected, which facilitates early isolation, diagnosis and therapy.

The invention discloses a pharmaceutical composition for preventing and treating trachinotus ovatus scabies diseases. The trachinotus ovatus is infected by Lactococcus and resulted in scabies disease, the conventional treating method adopts chemical medicines, and however, chemical medicines are left in fish bodies. The pharmaceutical composition is prepared from 10-20 parts of scutellaria baicalensis, 10-15 parts of astragalus mongholicus, 10-15 parts of honeysuckle, 20-30 parts of Chinese gall, 20-30 parts of VC-2-tripolyphosphoester (35%), 20-30 parts of multiple vitamins special for aquatic products and 3-8 parts of florfenicol. The materials are prepared into the pharmaceutical composition and are mixed into feed to feed the trachinotus ovatus so as to heal the disease. The pharmaceutical composition has good treating effect on the trachinotus ovatus scabies disease caused by Lactococcus, and can improve the immunocompetence of the fish self, so that the disease recurrence rate and the death rate of aquatic products are reduced without drug residue.

The invention discloses an antirust coating used for steel, and a preparation method thereof. The preparation method comprises the following steps: weighing epoxy resin, isopropanol, butanol, an aluminum paste, butyl acrylate, methyl methacrylate, acrylic acid, styrene, barium sulfate, zinc phosphate, modified aluminum triphosphate, sodium bicarbonate, ammonium persulfate and talcum powder, stirring above raw materials, and grinding the stirred raw materials to form the antirust coating. A coating film formed by the coating has flat and bright appearance, the viscosity is 100-120s, the surface drying time is 30-50min, and the hard drying time is 15-19h; the flexibility is 1-3mm, and the adhesion is 1-2 grade; the coating film has no foaming or shedding phenomenon after being immersed in 30DEG C water for 3-7d, and the impact resistance is 50-70cm; and the fineness is 25-45[mu]m, and the pencil hardness is H.