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3 results about "Poloxamer" patented technology

Poloxamers are nonionic triblock copolymers composed of a central hydrophobic chain of polyoxypropylene (poly(propylene oxide)) flanked by two hydrophilic chains of polyoxyethylene (poly(ethylene oxide)). The word poloxamer was coined by the inventor, Irving Schmolka, who received the patent for these materials in 1973. Poloxamers are also known by the trade names Synperonics, Pluronics, and Kolliphor.

Florfenicol/colistin sulfate soluble powder and preparation method thereof

ActiveCN103550755AImprove synergistic antibacterial effectEasy to usePowder deliveryOrganic active ingredientsPyrrolidinonesPolyvinylpyrrolidone
The invention discloses a florfenicol / colistin sulfate soluble powder which is composed of the following components in percentage by weight: 5-20% of florfenicol, 2-20% of colistin sulfate, 0.5-2% of borax, 5-30% of citric acid, 0.1-2% of potassium bicarbonate, 7.5-30% of polyvinylpyrrolidone, 1-5% of poloxamer 188 and the balance of anhydrous glucose. The invention also discloses a preparation method of the soluble powder, which comprises the following steps: dissolving the polyvinylpyrrolidone in anhydrous ethanol, adding the florfenicol, citric acid, borax, potassium bicarbonate and poloxamer 188, evenly mixing, recovering the ethanol, drying, pulverizing, adding the colistin sulfate and anhydrous glucose, and evenly mixing. The soluble powder ensures that the two reagents simultaneously enter the organism and better display the synergic antibacterial action; the method is simple and convenient to operate, and enhances the production efficiency; and the anhydrous ethanol is recovered, so the method protects the environment and is suitable for industrial production.
Owner:HENAN SOAR VETERINARY PHARMA

Preparation method of flexible gas sensor for fabric

PendingCN113552182AStay flexibleKeep breathableMaterial resistanceTextiles and paperAlcoholPorous carbon
The invention relates to a preparation method of a flexible gas sensor for a fabric. The preparation method comprises the following steps of 1, selecting an area on the fabric as a sensor processing area, 2, preparing a coating solution according to the mass ratio of alcohol-soluble phenolic resin to poloxamer being larger than 1: 2 and smaller than or equal to 2: 1, the mass ratio of the sum of the mass of the alcohol-soluble phenolic resin and the mass of the poloxamer to absolute ethyl alcohol being 1: 4, 3, placing the coating solution in a vacuum box for degassing treatment, spin-coating the sensor processing area of the fabric with the degassed coating solution, and placing the fabric spin-coated with the coating solution in a vacuum drying box for vacuum heating and drying, 4, ablating the area, spin-coated with the coating solution, of the dried fabric by using a carbon dioxide laser to obtain porous carbon, and respectively adhering electrode plates to two ends of the area where the porous carbon is located. The gas sensor is combined with the fabric, so that the flexibility and the air permeability of the fabric are kept, and the manufacturing cost of the intelligent protective clothing is reduced.
Owner:HEBEI UNIV OF TECH
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