32 results about "Sodium pyridinethione" patented technology

An antimicrobial composition containing a cationic polymer having limited antimicrobial activity (such as a hydrophobically-modified quaternary ammonium cellulose ether) and an antimicrobial compound (such as one or more compounds selected from the group consisting of diiodomethyl-para-tolylsulfone, ortho-phenylphenol, sodium pyrithione, zinc pyrithione, 3-iodo-2-propynylbutylcarbamate, 2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride, 2-(4-thiazolyl)-benzimidazole, β-bromo-β-nitrostyrene, 2,4,4′-trichloro-2-hydroxyphenyl ether, chloroxylenol, chlorocresol, para-tert-amylphenol, N-(4-chlorophenyl)-N′-(3,4 dichlorophenyl)-urea, and para-hydroxybenzoic acid esters). The growth of microorganisms (such as Pseudomonas aeruginosa) can be inhibited by exposing the microorganism to such a composition.

To provide an industrial antibacterial composition high in saftey and antibacterial force, and specially, exhibits satisfactory antibacterial force even under alkaline condition, and an antibacterial method. The industrial antibacterial composition contains sodium pyrition and 2-methyl-4-isothiazolin-3-one, and is used under an alkaline condition of pH 7 or higher. Specially, it is preferable that sodium pyrition and 2-methyl-4-isothiazolin-3-one are dissolved in water to make them an aqueous liquid agent of an alkalinity of pH 9-11.

Wallboard and facing paper that provides increased mold resistance at lower biocide loadings. The biocide is: (a) an n-alkyl isothiazolinone such as octylisothiazolinone (OIT), a monohalo and dihalo substituted n-alkylisothiazolinone such as chloromethylisothiazolinone (CMIT) or dichlorooctylisothiazolinone (DCOIT), 3-iodo-2-propynyl-butylcarbamate (IPBC), chlorothalonil, methylene-bis-thiocyanate, or mixtures of two or more thereof; or (b) carbendazim and a second biocide selected from 3-iodo-2-propynyl-butylcarbamate (IPBC), diiodomethyltolylsulfone (DIMTS), sodium pyrithione, octylisothiazolinone (OIT), dichlorooctylisothiazolinone (DCOIT), and chlorothalonil.

The invention discloses a fabric mildew-resistant antiseptic and a preparation and an application method thereof. The fabric mildew-resistant antiseptic comprises the following raw materials by weightpercentage: 10-30% of a mildew inhibitor, 15-30% of an antiseptic, 1-10% of an emulsifier, 1-15% of a cross-linking agent, and 20-65% of a solvent; wherein the mildew inhibitor is selected from at least one of tebuconazole, didecyl dimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride, pyrithione urea, and TCMTB; the antiseptic is selected from at least one of chlorothalonil, sodiumpyrithione, beta-thujaplicin, and polyhexamethyl biguanide. The fabric mildew-resistant antiseptic has good mildew-resistant and anti-microbial effects, has no influence on performance of fabric and no generation of harmful substances, and has the advantages of environmental protection, good safety, and no stimulation on skin; and the method has the advantages of simple production technology, short production period, less energy consumption, and low cost, and is in favor of popularization in middle and small-sized enterprises.

The invention discloses a straw glass fiber fireproof plate section which is characterized by being prepared from the following raw materials in parts by weight: 70-80 parts of crop straws, 3-5 parts of glass fibers, 7-9 parts of a phenolic resin, 4-5 parts of polyurethane, 2-3 parts of zinc borate, 1-2 parts of ammonium polyphosphate, 1-1.5 parts of rosin, 0.4-0.6 part of sodium pyrithione and 10-12 parts of a synergetic filler. The crop straws are taken as a base material of the plate, and the glass fibers, zinc borate and the like are added, so that the fireproof plate section is heat-resistant and flame-retardant; due to the addition of the rosin and sodium pyrithione, insect prevention and rotting protection are realized; due to dual effects of the phenolic resin and polyurethane, the defect that the glass fibers are low in wear resistance is overcome; due to the addition of a modifier prepared by a special process, the flame-retardant property, toughness and wear resistance are further improved; and moreover, the strength of the prepared plate exceeds that of solid wood, fire resistance, moth resistance, rotting protection and moisture prevention are realized, three wastes are avoided in the production process, the amount of the wood is saved, air pollution caused by straw combustion is reduced, and income of the peasants is increased.

The invention relates to a drawing fluid, in particular to an antibacterial water-based drawing fluid with low possibility of decay. The drawing fluid is prepared by raw materials in parts by weight as follows: 18-22 parts of trimethylolpropane oleate, 25-28 parts of isooctyl oleate, 4-5 parts of silicone emulsion, 1-2 parts of dimethyl fumarate, 6-8 parts of butyl stearate, 1-3 parts of sodium pyrithione, 3-4 parts of propargyl alcohol, 8-10 parts of petroleum sodium sulfonate, 2-3 parts of licorice extract, 1-2 parts of calcium ascorbate, 4-5 parts of an auxiliary and 800-1,000 parts of deionized water. According to the drawing fluid, the raw materials such as the dimethyl fumarate, the sodium pyrithione, the licorice extract and the like are added, so that the oxidation resistance of grease and the sterilization anticorrosion capacity of emulsion are effectively improved, and the problem that the drawing fluid is prone to rancidity is solved from the source; and at the same time, environment-friendly and low-toxic synthesis ester oil with good thermal stability is taken as base oil, and additives with functions of extreme pressure resistance, corrosion inhibition and the like are supplemented, so that the prepared drawing fluid can be stored for a long time and is not prone to rancidity and longer in service life.

The invention discloses a novel synthetic method of sodium pyrithione. The method includes the following steps: synthesizing a pyridine n-oxide by using pyridine as a raw material, water as a solventand hydrogen peroxide as an oxidant in the presence of catalysts; and mixing the pyridine n-oxide with organic solvents, adding surfactants, vulcanizing agents and alkali reagents, refluxing water, and raising the temperature and pressurizing for reaction after water in the reaction system is separated to synthesize the sodium pyrithione. The novel synthetic method of sodium pyrithione uses the cheap pyridine as the raw material, has the advantages of easily available raw material, simply synthesis route, high total reaction yield, less ''three wastes'' generated by the reaction and low synthesis cost, and has extremely high industrial value.

The invention discloses a softening and color fixation treatment solution for straw and willow braided salix integra and a preparation method thereof. The softening and color fixation treatment solution is prepared from the following raw materials: sodium pyrithione, quercetin, dimethyl fumarate, formaldehyde sodium bisulfite, methyl salicylate, lanolin alcohol, polyvinyl acetate emulsion and water. Compared with the prior art, the softening and color fixation treatment solution has the following advantages that the preparation method of the treatment solution is simple, and the formula is scientific and reasonable and comprises a plurality of functional components; a dense polymer is formed on the surface of a treated material, and the treatment solution has relatively strong stability and can realize an effective color fixation effect; under the synergistic effect of the sodium pyrithione and the quercetin, the antibacterial and mildew-proof performances of the treatment solution can be guaranteed; and meanwhile, the treatment solution and the other raw materials have common effects, and salix integra can be effectively softened after being treated by the treatment solution, so that the toughness of the salix integra is improved and the breaking rate in a braiding process is reduced.

The invention provides a production method for improving pyrithione zinc whiteness.The method comprises the first step of zinc sulfate purification, wherein 3-5 kg of zinc powder is added into 3,000-10,000 kg of a 15-32% zinc sulfate solution, and the temperature ranges from 50 DEG C to 80 DEG C; the second step of peel acid reaction, wherein 15-32% hydrochloric acid is added into 3,000-10,000 kg of sodium pyrithione, the PH value is adjusted to 2-4; the third step of salt forming reaction, wherein a 15-50% sodium hydroxide solution is added to an intermediate SPT solution for dissolution; the fourth step of adjusting the PH value of the sodium pyrithione solution obtained in the third step to 6-8 through 15-32% hydrochloric acid or 15-50% liquid caustic soda; the fifth step of increasing the temperature of the sodium pyrithione solution obtained in the fourth step to 50-80 DEG C, dropping the zinc sulfate solution obtained in the first step to the sodium pyrithione solution until the PH value reaches 5-6 and keeping the temperature of 60-80 DEG C for 3-5 h.

The invention discloses an efficient water reducing agent for improving the frost resistance and the dispersibility of concrete. The efficient water reducing agent comprises, by weight, 240-250 parts of methyl-2-buten polyoxyethylene ether, 25.2-26.0 parts of acrylic acid, 1.6-1.65 parts of ammonium persulfate, 0.53-0.55 part of thioglycolic acid, 13-14 parts of lignin, an appropriate quantity of sodium hydroxide solution with the concentration of 10 wt%, an appropriate quantity of deionized water, 26-28 parts of graphene oxide, 0.8-1 part of sodium pyrithione, 6-8 parts of waste carbon fiber yarns, 3-4 parts of methyl celluloses, 2-3 parts of ethylene glycol, 9-11 parts of porous calcium phosphate, 1.2-1.5 parts of sodium abietate and 1-1.3 parts of sodium dodecyl sulfate. The efficient water reducing agent has the advantages that carbon fibers are added into a water reducing agent under the effects of dispersing agents during preparation and are matched with added components such as the ethylene glycol and the sodium abietate, and accordingly the strength, the dispersibility, the frost resistance and the corrosion resistance of the concrete can be improved.

The invention discloses an environment-friendly efficient water reducing agent with excellent corrosion resistance. The water reducing agent is prepared by, by weight, 240-250 parts of TPEG, 25.2-26.0 parts of acrylic acid, 1.6-1.65 parts of ammonium persulfate, 0.53-0.55 part of thioglycolic acid, 13-14 parts of lignin, an appropriate amount of sodium hydroxide solution with the concentration being 10wt%, an appropriate amount of deionized water, 26-28 parts of graphene oxide, 2-3 parts of urea, 1.3-1.5 parts of sodium pyrithione, 0.8-1 part of potassium sorbate, 9-11 parts of polypropylene fiber, 2-3 parts of OP-10, 4.5-5 parts of molybdenum disulfide, 6-7 parts of quartz powder and 2-3 parts of EVA latex. The environment-friendly efficient water reducing agent has the advantages that the water reducing agent is scientific and reasonable in component proportion; the polypropylene fiber is added to be matched with the molybdenum disulfide, so that the dispersity of the water reducing agent in concrete can be increased, and the crack resistance of the concrete can be increased; components such as the sodium pyrithione are added to allow the water reducing agent to have excellent corrosion resistance.

The invention discloses a wood processing preservative and a preparation method thereof. The wood processing preservative comprises the following components by mass: 10%-15% of disodium octaborate tetrahydrate, 10%-15% of 2-benzo imidazole methyl carbamate, 5%-10% of dithiocyano-methane, 2%-5% of bronopol, 1%-2% of sodium pyrithione, 3%-10% of parachlorometaxylenol, 4%-8% of DCOIT (4,5-dichloro-2-n-octyl-3-isothiazolone), 2%-6% of didecyldimethylammonium chloride, 1%-2% of glycerol, 0.5%-2% of fatty alcohol polyoxyethylene ether and 25%-60% of water. The beneficial effects are that the wood processing preservative has excellent anti-corrosion, mouldproof, sterilization and insect-control functions, has strong ability to kill and inhibit a variety of decay fungi and moth and the like, and the wood processing preservative is good in environmentally friendly property, low in cost and stable in performance.

The invention discloses a botanical bactericidal composition for controlling bakanae diseases. The botanical bactericidal composition for controlling bakanae diseases comprises a composition A and a composition B, wherein the composition A is a mixture of Houttuynia cordata extract, Corydalis bungeana extract and Lithospermum erythrorhizon extract, the composition B is a brassinolide compound, andthe botanical bactericidal composition can further comprise one or more of iodopropynyl butylcarbamate, dichloroacetyl trichlamide and sodium pyrithione. Compounding of the botanical components is adopted, an obvious bactericidal effect is achieved, the use amount of chemical reagents is reduced, and pollution to the environment and harm to the human health are reduced.

The invention relates to a preparation method of a pyrithionc zinc ultrafine grain for aqueous coating sterilization and mildew prevention. The method comprises the following steps: conveying a zinc sulfate solution and a sodium pyrithione solution into a reactor, and reacting to prepare the pyrithionc zinc ultrafine grain. An acrylic polymer surfactant is added to the zinc sulfate solution before the zinc sulfate solution is conveyed into the reactor to realize the in situ modification of the newly generated pyrithionc zinc ultrafine grain in the reaction process in order to improve the dispersion of the pyrithionc zinc ultrafine grain in an aqueous coating. The pyrithionc zinc ultrafine grain produced in the invention has the characteristics of small particle size, narrow particle size distribution, increase of the dispersion and stability in the aqueous coating, and improvement of the sterilization and mildew prevention effects.

The invention discloses a carbon fiber tyre and a preparation method thereof. The carbon fiber tyre comprises the following raw materials by weight: 10 to 20 parts of polyvinyl chloride, 40 to 100 parts of carbon fiber, 60 to 70 parts of calcium stearate, 70 to 150 parts of rubber, 10 to 20 parts of zinc oxide, 20 to 40 parts of bran oleic acid and 1 to 8 parts of sodium pyrithione. The preparation method comprises the following steps: mixing rubber in an internal mixer at 60 to 100 DEG C for 5 to 10 min; then adding carbon fiber, calcium stearate and calcium carbonate into the internal mixer and continuing mixing; then adding zinc oxide, polyvinyl chloride, bran oleic acid and sodium pyrithione and carrying out mixing; and after completion of mixing, carrying out rubber discharging and putting the obtained rubber in a forming die so as to obtain the carbon fiber tyre. The carbon fiber tyre provided by the invention has an abrasion resistance index of 343 to 360 while a standard abrasion resistance index is 100; and addition of bran oleic acid enables abrasion resistance of the tyre to be obviously improved, so the service life of the tyre is prolonged.

The invention discloses a rare-earth-based complex marine antifouling agent and a preparation method thereof, the structural formula of the effective component of the rare-earth-based complex marine antifouling agent is shown in the specification, R is H, alkyl, heterocyclic group or sulfydryl, and Re is selected from lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, yttrium and scandium rare earth elements. The antifouling agent is formed by coordination of sodium pyrithione, acidic alpha-amino acid and soluble rare earth salt, rejection of marine organisms to the antifouling agent is reduced, antibacterial and antifouling effects are obvious, permeability of the antifouling agent is increased, and the antifouling agent can better permeate into cells and be combined with intracellular structures, so that metabolism of bacteria is effectively inhibited, and the antifouling effect is improved. The antibacterial agent has the advantages of broad antibacterial spectrum, strong antibacterial ability, lasting antibacterial efficacy, low ecological safety risk and the like.

The invention discloses a disinfectant composition for a musk deer breeding house and a preparation method and application of the disinfectant composition, and the disinfectant composition for the musk deer breeding house is prepared from the following substances in percentage by mass: 0.1 to 16 percent of N,N-bis-(3-aminopropyl)dodecylamine, 0.5 to 5 percent of phenoxyethanol, 0.1 to 3 percent of ethylhexylglycerin, 3 to 10 percent of sodium pyrithione solution, 2 to 8 percent of propylene glycol, 0.1 to 2 percent of N,N-bis(carboxymethyl)-L-glutamic acid tetrasodium salt and the balance of deionized water. According to the prepared disinfectant composition for the musk deer breeding house, living habits of musk deers and characteristics of breeding farms are combined, materials such as the rapid bactericide, the efficient mildew preventive, the sterilization synergist, the green chelating agent and the skin-friendly deodorant are adopted for compatibility and compounding, and the disinfectant composition is simple in preparation process, comprehensive in protection, high in synergism, high in cost performance and toxicologically safe.

The invention discloses an antibacterial mouldproof biaxially oriented polylactic film and a preparation method thereof. Based on 100 weight parts of biaxially oriented polylactic film special material, the polylactic film comprises the following blended components: 0.4 to 3 weight parts of antibacterial and mouldproof agent and 0 to 0.5 weight parts of dispersing agent; the film is prepared by a biaxial tension method and has the thickness of 10-100 mu m; and the antibacterial and mouldproof agent is a polyguanidine pyrithione antibacterial and moldproof agent, is prepared by mixing water-soluble polyguanidine inorganic acid salt or organic acid salt and sodium pyrithione in a molar ratio of 1:(0.1-5). The polylactic film has a good antibacterial and mouldproof effect, has the antibacterial effect of 99.9 percent on staphylococcus aureus and Escherichia coli, has the mouldproof grade of 0 for moulds such as aspergillus niger, aspergillus terreus, Paecilomyces variotii and the like, and has high water resistance and wide application prospect.

The invention discloses a high-efficiency purifying method for sodium pyrithione. The method comprises the following steps: adjusting the pH value of a raw material which is an aqueous solution of crude sodium pyrithione to 1-4 at a low temperature -5-25 DEG C by adopting a non-oxidizing acid to convert the sodium pyrithione into 2-mercaptopyridine-N-oxide; and completely dissolving the above precipitated solid in an organic solvent, carrying out liquid separation, allowing the obtained organic phase to be in full contact with an alkali liquid at a low temperature of -5-25 DEG C to convert the2-mercaptopyridine-N-oxide into the sodium pyrithione which enter a water phase, carrying out liquid separation, and collecting the water phase to obtain the purified aqueous solution of purified sodium pyrithione. The 2-mercaptopyridine-N-oxide precipitated from the sodium pyrithione through the acid by using the organic acid is rapidly transferred into the organic phase, the liquid separation is carried out, the 2-mercaptopyridine-N-oxide is dissolved by the alkali and enters the water phase, and the liquid separation is carried out to obtain the aqueous solution of purified sodium pyrithione, so the conversion rate approaches 100%, and the separation yield is more than 95%.

The invention particularly relates to water-based environment-friendly titanium alloy wire drawing lubricating liquid and a preparation method thereof, and solves the problem that the wire drawing quality is influenced due to the fact that no proper lubricating liquid exists during wire drawing of an existing titanium alloy wire. The water-based environment-friendly titanium alloy wire drawing lubricating liquid is prepared from the following raw materials in parts by mass: 20-50 parts of neopentyl polyol higher fatty acid ester, 15-50 parts of polyethylene glycol oleate, 10-30 parts of triethanolamine oleate, 1-8 parts of oxidized polyethlene wax emulsion, 1-5 parts of sodium gluconate, 1-5 parts of sodium pyrithione, 1-5 parts of polyoxyethylene polyoxypropylene monobutyl ether, 0.1-1 part of sodium molybdate and 800-950 parts of water. The raw materials used in the water-based environment-friendly titanium alloy wire drawing lubricating liquid are environment-friendly preparations,so that the biodegradability is excellent, and the price is low; meanwhile, the wire drawing heat can be quickly taken away, so that high-speed wire drawing of titanium alloy is realized, and the production efficiency is improved; and the water-based environment-friendly titanium alloy wire drawing lubricating liquid is outstanding in lubricating capacity, good in heat conductivity and suitable for precise wire drawing of the titanium alloy.

The invention discloses an efficient and environmentally friendly wood preservative and a preparation method thereof. The efficient and environmentally friendly wood preservative comprises the following components by mass: 10%-15% of zinc borate, 5%-10% of carbendazim, 5%-10% of alkyl dimethyl benzyl ammonium chloride, 4%-8% of dithiocyano-methane, 3%-6% of copper naphthenate, 3%-6% of calcium propionate, 2%-4% of bronopol, 1%-3% of sodium benzoate, 1%-2% of sodium pyrithione, 0.5%-2% of fatty alcohol polyoxyethylene ether and 35%-65% of water. The beneficial effects are that the efficient and environmentally friendly wood preservative has broad spectrum bactericidal and insecticidal effect, has strong ability to kill and inhibit a variety of decay fungi and insect pests, the color of treated wood is not changed, and the efficient and environmentally friendly wood preservative has excellent anticorrosive, mouldproof, insect-resistant and color change preventing effects, is good in environmentally friendly property and stable in performance.