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6 results about "Pyrithione" patented technology

Pyrithione is the common name of an organosulfur compound with molecular formula C₅H₅NOS, chosen as an abbreviation of pyridinethione, and found in the Persian shallot. It exists as a pair of tautomers, the major form being the thione 1-hydroxy-2(1H)-pyridinethione and the minor form being the thiol 2-mercaptopyridine N-oxide; it crystallises in the thione form. It is usually prepared from either 2-bromopyridine, 2-chloropyridine, or 2-chloropyridine N-oxide, and is commercially available as both the neutral compound and its sodium salt. It is used to prepare zinc pyrithione, which is used primarily to treat dandruff and seborrhoeic dermatitis in medicated shampoos, though is also an anti-fouling agent in paints.

Synergistic anti-corrosion blends and compositions containing such blends

This application provides preservative compositions of pyrithione compounds, organic acids or their salts, and aromatic alcohols, which have a synergistic effect and can reduce the amount of pyrithione required as an effective preservative in end-use formulations.
Owner:ASADA LLC

A composition, products containing it and methods for its preparation and use thereof

PendingCN122140542ACosmetic preparationsHair cosmeticsCAMELLIA SINENSIS SEEDSalicylic acid
The present application relates to the technical field of medicine and daily chemical products, and discloses a composition, a product containing the same, a preparation method of the composition, and application of the composition.The composition comprises 0.8-1.2 parts of zinc pyrithione, 0.5-0.8 parts of salicylic acid, 0.1-0.2 parts of farnesol, 0.2-0.4 parts of gentiana scabra extract, 0.3-0.5 parts of portulaca oleracea extract, 0.5-1.0 parts of camellia sinensis seed cake extract, 0.1-0.3 parts of caffeine, and 0.3-0.5 parts of rosemary extract, in terms of mass fraction.The composition realizes improvement in aspects of skin lesion area, water content in the scalp stratum corneum, trans-epidermal water loss, oil secretion, high-temperature stability, centrifugal stability, freeze-thaw cycle stability, dandruff removal, anti-inflammatory effect, hair fixing, and / or anti-itching effect.
Owner:CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL HAINAN HOSPITAL

A drying device for copper pyrithione

The utility model discloses a kind of for pyrithione copper drying device, belong to pyrithione copper production technical field, including drying chamber, drying chamber outer wall is equipped with heating jacket, vertical rotating shaft is equipped in drying chamber, first annular plate, second annular plate are sequentially equipped from top to bottom in drying chamber, first annular plate outer edge is connected with drying chamber inner wall, central discharge port is left between first annular plate and rotating shaft, second annular plate inner edge is rotatably connected with rotating shaft, side discharge port is left between second annular plate and drying chamber inner wall;First annular plate top and second annular plate top are each equipped with a plurality of harrow arm, harrow arm one end is fixedly connected with rotating shaft, a plurality of harrow teeth are equipped at harrow arm bottom, a plurality of stirring rods are also equipped on rotating shaft, stirring rod is located below second annular plate.The utility model material is preheated on annular plate, harrow tooth makes it overturn, material is uniformly preheated;Stirring rod stirs the material at the bottom of drying chamber, sufficiently dries it, reduces drying time.
Owner:WEIFANG RUNAN CHEM TECH CO LTD

A high-efficiency production device for zinc pyrithione

This utility model discloses a high-efficiency production device for zinc pyridinethione, belonging to the field of zinc pyridinethione production technology. It includes a purification kettle, a first purification chamber located on the upper part of one side of the purification kettle, with a feed inlet on the first purification chamber. An overflow port is provided between the top of one side wall of the first purification chamber and the top of the purification kettle. A baffle plate is vertically installed inside the first purification chamber, with a flow channel between the bottom of the baffle plate and the bottom of the first purification chamber. A liquid outlet assembly is located at the bottom of the first purification chamber. A filter screen is detachably installed below the first purification chamber, with the filter screen horizontally positioned. A stirring assembly is installed inside the first purification chamber, capable of moving the filter screen vertically. The purification kettle is connected to a reaction kettle, which is connected to a sodium pyridinethione raw material kettle. In this utility model, the baffle plate prevents the solution from leaving directly from the overflow port, improving the effect of the primary displacement reaction. Zinc sulfate undergoes two displacements in the purification kettle, improving raw material purity, reducing floor space, and increasing the production efficiency of zinc pyridinethione.
Owner:WEIFANG RUNAN CHEM TECH CO LTD

Disinfectant and preservative compositions

PendingUS20260182568A1AntifungalHome use
Disclosed are antibacterial, sterilizing and preservative compositions that protect products in various industrial fields, including home care products such as clothing detergents, dish detergents, and home cleaners, personal care products such as shampoos, body cleansers, wet tissues, and cleansers, and cosmetic products such as creams and emulsions, and products containing the same. The compositions contain a compound of Formula 1, optionally in combination with other compounds. Moreover, the anti-dandruff hair care cosmetic composition or antifungal composition containing the compound represented by Formula 1 is effective in controlling dandruff bacteria. When combined with piroctone olamine, zinc pyrithione, or climbazole, the composition has synergistic effects. In addition, the antiviral composition containing the compound represented by Formula 1 effectively controls microorganisms such as viruses and can be used as an eco-friendly quarantine composition.
Owner:BJBIOCHEM CO LTD

Method for recovering bhets from polyester blended textile waste

The application discloses a polyester blended textile waste recycling BHET method, and utilizes ethylene glycol to degrade polyester blended textile waste under the action of a catalyst, wherein the catalyst is zinc pyrithione; the antibacterial agent SH-ANTI408 disclosed by the application can be applied to ethylene glycololysis of polyester blended textile waste as a catalyst, can make polyester / cotton / spandex blended fabric depolymerize in stages while keeping the structure of cotton fibers, and can make the BHET product yield reach 80-90%, the product selectivity is high, the fabric separation efficiency reaches more than 98%, the catalyst is not needed to be recycled, and a practical and sustainable method for chemical recycling of polyester blended textile waste is provided.
Owner:JIANGNAN UNIV