A method for cleaning medical equipment by scrubbing the equipment with an open-cell melamine-formaldehyde foam comprising an antibacterial active composition, and wherein the open-cell melamine-formaldehyde foam is prepared from a melamine-formaldehyde precondensate, wherein the molar ratio melamine to formaldehyde of the melamine-formaldehyde precondensate is smaller than 0.5.

Provided are both a superabsorbent polymer capable of continuously and safely exhibiting an improved bacterial growth inhibitory property and a deodorant property without deterioration in the physical properties of the superabsorbent polymer, such as water retention capacity, absorption under pressure, etc., as well as a preparation method for the superabsorbent polymer.

Disclosed is an uncoated passenger contact component including a self-sanitizing polymer composition.

One aspect of the present invention is an acidic gas separation device including: an electrolyte layer; a pair of electrodes provided with the electrolyte layer interposed between the pair of electrodes; and a voltage application unit that applies a voltage between the pair of electrodes, wherein the pair of electrodes are gas permeable electrodes, and the electrolyte layer contains: at least one selected from the group consisting of high molecular weight redox compounds having a radicalization rate of 90% or more, high molecular weight redox compounds having a quinone group in a molecule, and high molecular weight redox compounds having an imino group in a molecule; and a nonvolatile electrolytic solution.

A preparation method of an antibacterial deodorizing modified fiber for water purification is provided. Maleic anhydride is used to perform an addition reaction with sodium polysulfide to generate a disulfide antibacterial agent I, the disulfide antibacterial agent I continues to react with 2-amino-5-nitropyridine in an acetic acid solution under the catalysis of sodium acetate to obtain a compound II, then, the nitro in the compound II is reduced into amino by ferrous sulfate, meanwhile, anhydride is hydrolyzed into carboxylic acid in a faintly acid aqueous solution to obtain a compound III, and finally, under alkaline conditions, the amino in the compound III reacts with the cyan in a polyacrylonitrile fiber to obtain a modified polyacrylonitrile fiber. The prepared modified polyacrylonitrile fiber can remove various heavy metals in sewage and has good antibacterial and anti-mildew effects, thereby achieving the effects of water purification and deodorization.

An antimicrobial paint is disclosed. The antimicrobial paint comprises a carrier fluid, a binder, a sulfonated polymer and optionally at least an additive. The sulfonated polymer is selected from the group of perfluorosulfonic acid polymers, polystyrene sulfonates, sulfonated block copolymers, sulfonated polyolefins, sulfonated polyimides, sulfonated polyamides, sulfonated polyesters, sulfonated polysulfones such as polyether sulfone, sulfonated polyketones such as polyether ketone, sulfonated poly(arylene ether), and mixtures thereof. The sulfonated polymer is sufficiently or selectively sulfonated to contain from 10-100 mol % sulfonic acid or sulfonate salt functional groups based on the number of monomer units, for killing at least 99% of microbes in less than 30 minutes, or in less than 5 minutes of coming into contact with a substrate coated in the antimicrobial paint composition.

An air filter device. The air filter device comprises: a filter medium having an inlet surface for taking in air, and a discharge surface for filtered air. The filter medium having a plurality of air passages for the air to flow therethrough. At least a portion of the inlet surface of the filter medium comprises a sulfonated polymer for killing at least 90% microbes in the air within 120 minutes of contact with the surface of the air passages. The sulfonated polymer is selected from the group of perfluorosulfonic acid polymers, polystyrene sulfonates, sulfonated block copolymers, sulfonated polyolefins, sulfonated polyimides, sulfonated polyamides, sulfonated polyesters, sulfonated polysulfones, sulfonated polyketones, sulfonated poly(arylene ether), and mixtures thereof. The sulfonated polymer has a degree of sulfonation of at least 10%.

Described herein are antimicrobial copolymers comprising (i) a polymer backbone and a plurality of thiouronium groups covalently bonded to the polymer backbone and (ii) a plurality of quaternary ammonium groups covalently bonded to the polymer backbone. Also described herein are methods for making the copolymers described herein and their use in disinfecting compositions.

Disclosed herein are embodiments of odor-inhibiting compositions and hygienic articles incorporating the same. In some embodiments, an odor-inhibiting composition comprises water-absorbing polymer particles; a first odor control agent comprising a chelation agent; and a second odor control agent.

Disclosed is a system and method of treatment which provides a direct response to the treatment of pneumonia as related to infections using a powder comprising a polyiodide resin with broad spectrum bactericidal, fungicidal and virucidal properties. When the powder is applied directly to the lungs of a mammal an immediate contact kill of protozoa, bacteria, fungi and viruses that cause respiratory tract infections affecting the lungs of a mammal takes place. Also disclosed is an application of the polyiodide resin powder for use with personal protective equipment (PPE) including but not limited to face masks, face shields, and respirators.