13 results about "Sodium Pyrithione" patented technology

The invention discloses a rare earth compound flocculant and a preparation method and application thereof.The rare earth compound flocculant is composed of a gluconic acid rare earth compound, a pyrithione rare earth compound and water, the content of the gluconic acid rare earth compound is 5-15 wt%, and the gluconic acid rare earth compound is prepared by reacting sodium gluconate with first chlorinated rare earth salt in water; the content of the pyrithione rare earth compound is 0.4-0.6 wt%, and the pyrithione rare earth compound is prepared by reacting sodium pyrithione with second chlorinated rare earth salt in water. According to the invention, rare earth ions have positive electricity, and show extremely strong coordination ability and high coordination number. Meanwhile, the surface of phaeodactylum tricornutum has electronegativity; therefore, when the rare earth ions are in contact with the phaeodactylum tricornutum, the rare earth ions and the phaeodactylum tricornutum can rapidly generate charge interaction, so that the phaeodactylum tricornutum is rapidly agglomerated and forms a lump, and then the lump

The invention discloses a graphene modified PP (polypropylene) resin antibacterial master batch and a preparation method thereof. The graphene modified PP resin antibacterial master batch is prepared from the following components in parts by weight: 100 to 150 parts of polypropylene, 100 to 150 parts of nano calcium carbonate, 2 to 10 parts of graphene, 0.01 to 0.1 part of sodium pyrithione, 0.003 to 0.01 part of calcium stearate, 1 to 5 parts of maleic anhydride grafted polypropylene, 0.03 to 0.08 part of coupling agent and 0.1 to 0.8 part of antioxidant. The preparation method comprises the following steps: adding graphene into an ethanol solution, adding a coupling agent at the same time for ultrasonic dispersion, and then removing ethanol in a rotary evaporation manner; sodium pyrithione and calcium stearate are stirred and mixed uniformly, so that the surface of sodium pyrithione is coated with calcium stearate; and uniformly mixing and stirring nano calcium carbonate, maleic anhydride grafted polypropylene, an antioxidant, the pretreated graphene, sodium pyrithione and polypropylene.

The invention discloses a special composition for resisting superficial fungal bacterial infection and a preparation method thereof. The composition mainly comprises an antibacterial agent, a synergist, a repairing agent and a solubilizer. The component of the antibacterial agent is epsilon-polylysine hydrochloride; the synergist is prepared from oxymatrine, hexanediol, caprylyl glycol and sodium diacetate; the repairing agent comprises the following components: glycerol, urea, allantoin and dipotassium glycyrrhizinate; the solubilizer is prepared from the following components: triton X-100, polyvinylpyrrolidone, sodium pyrrolidone carboxylate, sodium pyrithione and polyvinyl alcohol. According to the invention, food-grade and traditional Chinese medicine-derived antibacterial components are used, so that the cleaning agent is free of hormones and irritant substances, is non-corrosive and is friendly to human bodies. Meanwhile, the composition disclosed by the invention is in a water-soluble and spray form, is convenient to use, can soften cutin and dead skin, has good permeability, continuously plays a role in killing fungi and bacteria, and achieves the purpose of treating the root causes.

The application discloses a rare earth compound flocculant and a preparation method and application thereof, and comprises a rare earth compound of gluconic acid, a rare earth compound of pyrithione and water, wherein the content of the rare earth compound of gluconic acid is 5-15 wt%, the rare earth compound of gluconic acid is prepared by reacting sodium gluconate and a first rare earth chloride salt in water; the content of the rare earth compound of pyrithione is 0.4-0.6 wt%, and the rare earth compound of pyrithione is prepared by reacting sodium pyrithione and a second rare earth chloride salt in water. The rare earth ions in the application have positive electricity, show extremely strong coordination ability and high coordination number. Meanwhile, the surface of Phaeodactylum tricornutum is negatively charged; therefore, when the rare earth ions contact with the Phaeodactylum tricornutum, the two can rapidly interact in electricity, cause the Phaeodactylum tricornutum to rapidly aggregate and form a mass, and then gradually precipitate.

Examples of a biocide composition include an activated halogen compound selected from the group consisting of 2,2-dibromo-3-nitrlopropionamide; 2-bromo-2-nitropropane-1,3-diol; and 1,2-dibromo-2,4-dicyanobutane; benzisothiazolin-3-one; a pyridine-N-oxide selected from the group consisting of zinc pyrithione and sodium pyrithione; and a carbamate derivative selected from the group consisting of 3-iodo-2-propynyl butyl carbamate; zinc bis(dimethyldithiocarbamate); and bis(dimethyl carbamoyl) disulfide.

The invention relates to a method for reducing microbial infestation of an aqueous technical product, comprising the steps: (a) providing an aqueous technical product, for example a dye, having a pH in the range of 7.0-9.5 and containing: i. 25-100 ppm 5-chloro-2-methyl-4-isothiazolone (CMIT) and ii. 50-1000 ppm of one or more zinc compound(s), selected from the group consisting of zinc oxide, zinc carbonate, zinc hydroxide and zinc hydroxycarbonate; (b) breaking down some of the CMIT by adding at least one pyrithione compound selected from sodium pyrithione, potassium pyrithione and calcium pyrithione, in a total amount in the range of 25-500 ppm so that the concentration of the CMIT in the technical product is in the range of 5-15 ppm; and (c) storing the technical product over a period of up to 9 months.

The application discloses a composite vulcanization accelerator, a preparation method and application of the composite vulcanization accelerator to natural latex and mixed rubber, wherein the composite vulcanization accelerator comprises a thioketone derivative and a pyridine compound, the pyridine compound is selected from 3-hydroxypyridine, 2-methylpyridine, 4-ethylpyridine, 2-nitropyridine, 3-nitropyridine, 2-aminopyridine and 3-aminopyridine, and the thioketone derivative is selected from sodium pyrithione, 3-methylthiazoline-2-thione, N-hydroxypyridine-2-thione, 5-dodecyl dithio-3-phenyl-1,3,4-thiadiazole-2-thione, 1,3-thiazolidine-2-thione, tetrahydropyrrole-2-thione and 5-(4-methylbenzoyl)-3,4-dihydropyrimidine-2-thione. The composite vulcanization accelerator does not generate harmful substances, has the properties of safety, high efficiency, low toxicity and environmental protection, and can promote vulcanization of the natural latex and the mixed rubber and improve the physical and mechanical properties of vulcanized rubber films.

A composition having a sodium pyrithione and a binder is provided. The composition may also have a softener. A method of using the composition is provided. The method includes applying the composition to a textile. A method of treating a textile with the composition to impart antibacterial and / or antifungal efficacy and durability is also provided.

The invention discloses a composite vulcanization accelerator, a preparation method and application of the composite vulcanization accelerator in natural latex and rubber compound. The composite vulcanization accelerator comprises a thioketone derivative and a pyridine compound, the pyridine compound is selected from 3-hydroxypyridine, 2-methylpyridine, 4-ethylpyridine, 2-nitropyridine, 3-nitropyridine, 2-aminopyridine and 3-aminopyridine, and the thioketone derivative is selected from sodium pyrithione, 3-methylthiazoline-2-thioketone, N-hydroxypyridine-2-thioketone, 5-dodecyl dithio-3-phenyl-1, 3, 4-thiadiazole-2-thioketone, 1, 3, 4-thiadiazole-2-thioketone, 1, 3, 4-triazole-2-thioketone, 1, 3, 4-triazole-2-thioketone and 1, 3, 4-triazole-2-thioketone. The compound is prepared from 5-(4-methylbenzoyl)-3, 4-dihydropyrimidine-2-thioketone, 3-thiazolidine-2-thioketone, tetrahydropyrrole-2-thioketone and 5-(4-methylbenzoyl)-3, 4-dihydropyrimidine-2-thioketone. The composite vulcanization accelerator does not generate harmful substances, has the properties of safety, high efficiency, low toxicity and environmental protection, and can promote the vulcanization of natural latex and rubber compound and improve the physical and mechanical properties of a vulcanized rubber film.

The utility model discloses a kind of pyrithione sodium high-efficiency production devices, belong to pyrithione sodium production technical field, including refining kettle, acid supply device, washing device, alkali supply device and gas treatment device are connected to refining kettle, filter screen is equipped in refining kettle, filter screen is horizontally arranged, and suction tube is fixedly connected on the upper surface of filter screen, and the end of suction tube away from filter screen projects out of refining kettle;Filter screen can move at first height and second height, when filter screen is at first height, into acid liquor into refining kettle, filter screen is higher than liquid level in refining kettle, 2-mercapto pyridine-N-oxide is precipitated, impurities are left in solution;When filter screen is at second height, suction tube is located in liquid in refining kettle and extracts solution.The utility model completes purification process in refining kettle, reduces the loss caused by material transfer, reduces production cost.

An antimicrobial formulation that can be directly added into a composition or onto a surface of a composition (e.g., forming a surface coating on a composition or device). The antimicrobial formulation includes sodium pentaborate, di-sodium tetraborate decahydrate, titanium diborite, titanium borate, sodium pyrithione, zinc pyrithione, benzhetonium chloride, or any combination thereof.

The utility model discloses a raw material recovery device for sodium pyrithione production, which belongs to the technical field of sodium pyrithione production and comprises an acid treater, a gas outlet is arranged at the top of the acid treater and connected with an alkali liquor tower through a first pipeline, a gas outlet end of the first pipeline is positioned below the surface of alkali liquor in the alkali liquor tower, and a partition plate is arranged above the alkali liquor. The partition plate divides the alkali liquor tower into an upper part and a lower part; a first liquid outlet is formed in the partition plate; a spraying assembly is arranged above the partition plate, the spraying assembly is communicated with the lower part of the alkali liquor tower through a circulating pipe, and a hydrogen sulfide detector is arranged below the partition plate; and a fan is arranged on the air return pipe, an alkali liquor inlet is formed in the side wall of the alkali liquor tower, and an alkali liquor outlet is formed in the bottom of the alkali liquor tower. The gas return pipe sucks escaped hydrogen sulfide to the position above the partition plate, the spraying assembly sprays alkali liquor, residual hydrogen sulfide gas is absorbed, the recovery efficiency of hydrogen sulfide is high, and the occupied area of equipment is small.

The application provides a sand-free ceramic coating and a preparation and spraying method thereof, which is composed of a binder, a ceramic filler, a color paste, a functional additive and a diluent, wherein the ceramic filler comprises silicon carbide, sodium pyrithione and silicon dioxide powder. By optimizing the composition of the ceramic filler, the formula of the binder and the spraying process parameters, the dependence of the ceramic coating on the sand blasting treatment of the base material is reduced. Through the synergistic effect of the ceramic filler and the curing treatment of the binder, a double bonding mechanism of physical anchoring and chemical bonding is constructed on the surface of the base material, the connection strength of the ceramic coating with the base material is effectively improved, the surface of the base material does not need to be sand blasted, the spraying efficiency of the ceramic coating is greatly improved, the curing time of the ceramic coating is significantly shortened by optimizing the spraying process parameters, thereby the input cost of the spraying process is reduced, the ceramic coating is not limited by the surface condition of the base material, has the advantages of strong adhesion, long service life, stable mechanical property and easy popularization and implementation.