70results about How to "Good antimicrobial" patented technology

Described herein are methods and compositions for preparing an adsorbent composition for sustained silver ion release is provided. The method comprises impregnating silver nanoparticles on an organic-templated-nanometal oxyhydroxide. Particle size of the silver nanoparticles is less than about 50 nm. The adsorbent composition is antimicrobial in water. In an aspect, the organic- templated-nanometal oxyhydroxide is organic-templated-boehmite nanoarchitecture (OTBN). The resultant adsorbent composition is used as a water filter in a water purification device.

Various embodiments of the present invention are directed to switchable carboxybetaine-based polymers, hydrogels, and/or elastomers, along with novel related monomers, crosslinkers, and methods. Under acidic conditions, the materials undergo self-cyclization and can catch and kill bacteria. Under neutral/basic conditions, these materials undergo ring-opening and can release killed bacterial cells and resist protein adsorption and bacterial attachment. These smart polymers, hydrogels and elastomers also show excellent mechanical properties making them highly desirable for many biomedical applications.

Disclosed is a novel method for preserving cosmetic/personal care formulations through a two component preservative system, said system comprising (a) Component I which functions to eliminate the existing microbial contamination load in a natural cosmetic formulation base through an optimized pasteurization method that avoids deep freezing; and (b) Component II that includes the step of adding synergistic blends of fractionated essential oils, extracts and isolated compounds to the pre-pasteurized cosmetic base obtained through the method of component I, wherein the synergistic blends sustain the effects of pasteurization through anti-microbial and anti-oxidant effects, said anti-oxidant effects enhancing further the anti-microbial effects by virtue of inhibiting lipid per oxidation that facilitates the undue proliferation of microbe.

The invention relates to a hydrophobic associated polymer containing a capsaicin activated monomer and a preparation method thereof. The method comprises the following step: by taking an acrylamide monomer containing capsaicin activity as a hydrophobic monomer, carrying out polymerization reaction on the acrylamide monomer and acrylamide and (methyl) crylic acid under initiation of a water-soluble initiator when in preparation, wherein the weight part ratio of the acrylamide monomer containing capsaicin activity to the acrylamide to the (methyl) crylic acid is (1-20) to (60-90) to (9-20), the reaction temperature is 30-80 DEG C, and the reaction time is 2-20 hours. The hydrophobic associated polymer macromolecule disclosed by the invention simultaneously contains a carboxyl group and a hydrophobic unit containing capsaicin activity with a rigid benzene ring structure, displays good viscosifying capacity, solubleness, salt resistant and temperature-resistance, and antimicrobial properties, is low in price, and can be used as a novel oil-displacing agent to be applied in tertiary oil recovery of an oil field.

The invention relates to a hydrophobic association zwitterionic polymer and a preparation method thereof. The preparation method comprises the following steps: adding acrylamide, acrylic acid and cationic monomers containing quaternary ammonium groups sequentially into a reactor; adding water and dissolving; adjusting the pH value of a system to be 6 to 9 by using NaOH; supplementing deionized water to enable the total monomer mass percentage of the reaction system to be 10 to 30%; adding surfactant lauryl sodium sulfate and stirring uniformly; adding an acrylamide hydrophobic monomers containing capsaicin functional groups; introducing N2 for 20 minutes; and adding a water-soluble initiator and performing polymerization reaction to obtain the hydrophobic association zwitterionic polymer. The positive charge content and the negative charge content of the hydrophobic association zwitterionic polymer prepared with the method are equal, a solution of the polymer has an antipolyelectrolyte effect, and the hydrophobic association zwitterionic polymer has excellent salt resistance. The introduced hydrophobic units containing the capsaicin functional groups have bioactivity and adopts a rigid benzene ring structure, so that the polymer has excellent tackifying property, temperature resistance, salt resistance and anti-microbial property, high dissolution speed and low price, and has an excellent application prospect in petroleum reservoir exploitation under the conditions of high temperature, high salt and bacteria in existence.

An antimicrobial agent comprising, as an active component, compounds represented by the following formula

The invention discloses a cutting liquid composition to manufacture metal, which comprises the following parts: 0.1-10% cobalt-inhibiting additive with triazine, 0.5-40% antirust agent, 0.05-5% corrosion inhibitor, 0.2-20% pH value adjustor and tap water, basic oil or composition to manufacture cobalt knife or cobalt manufacturing material in the cutting manufacturing course.

The invention discloses a fixed-guiding non-woven fabric production method. The method comprises the following steps: preparing raw material used for non-woven fabric; heating and melting polylactide and polypropylene to obtain melts; adding photosensitizers, ammonium polyphosphates, fillers, antibacterial agents and titanate coupling agents into melts, stirring and mixing uniformly, spraying through spinneret holes and carrying out cooling solidification to form fibers; crossly arraying fibers in horizontal-vertical directions and forming a fiber net through carding; adjusting flatness of the fiber net and conveying the net into a hot milling machine for hot-press formation and finally performing trimming and examination. The fixed-guiding non-woven fabric production method has the following beneficial effects: raw material is safe and eco-friendly; the production method is easy; a production condition is mild; a product is good in formability, low in prediction cost and suitable for industrialized production; non-woven fabric is featured by being small in thickness, low in weight, good in tenacity and anti-moisture, breathable and tear-resistant; by adding ammonium polyphosphate, fillers and antibacterial agents, the non-woven fabric is antibacterial, flame-retardant, dustproof and biodegradable and worthy of promotion.

Compositions for antimicrobial, antibacterial, antiviral, fungicidal and sporicidal applications comprise a mixture of alkyl betaine and alkyl amine oxide components together with a protonating agent. The compositions are particularly effective in the treatment and elimination of microorganisms in planktonic cell form as well as in sessile cell form in biofilms. The compositions may be applied in the form of sprays and foams as well as in liquid forms, as a solution or as a balm, as the sole active ingredient or with other active ingredients together with carriers or diluents.

The invention discloses a stress whitening-resistant antibacterial polypropylene composition and a preparation method thereof. The polymer composition disclosed by the invention is obtained by extruding polypropylene, a compatilizer, modified wollastonite, a flexibilizer, a composite antibacterial agent and an antioxidant through a double-screw extruder; the composite antibacterial agent preparedby selecting specific raw materials is matched with the modified wollastonite and the compatilizer to modify the polymer, so that the prepared polypropylene composition has good antibacterial property, stress whitening resistance and mechanical property, and can be widely applied to automotive interiors.

The present invention relates to preservation of cosmetic formulations. More specifically, the present invention relates to a preservative composition for cosmetic formulations comprising thymol, monolaurin and magnolol obtained from supercritical fluid extracts of Magnolia officinalis.

To provide a material for antimicrobial or sterilizing purposes which can be used for people having delicate skin, such as babies, little children or the aged, without any trouble, which prevents viruses from acquiring tolerance, and which does not affect human bodies or foods. A sheet material for antimicrobial and/or sterilizing purposes having a surface having a plurality of indentations with a pore size of 1000 nm or less.

The invention discloses an environment-friendly waterborne ink and a preparation process thereof. The ink is prepared from, by weight, 60-70 parts of an epoxy-modified acrylic resin, 3-5 parts of an antibacterial agent, 1-3 parts of long oil alkyd resin, 1-3 parts of an antioxidant, 1-2 parts of sodium dodecyl sulfate, 5-10 parts of waterborne organic pigment, 0.5-1 part of an anti-foaming agent,0.5-1 part of a waterborne leveling agent, 0.5-1 part of a waterborne wax emulsion, 0.5-1 part of ammonia water, 90-100 parts of deionized water and 30-40 parts of ethyl alcohol. The prepared environment-friendly waterborne ink has the obvious prominent characteristics in the aspects of coloring power, ultraviolet reflectivity, adhesion and the antibacterial property, by means of the spraying androlling process, the adhesion of the ink is higher, and the pollution is less than that of a conventional method of only spraying the ink.

The invention relates to an environment-friendly cation emulsified water-based cutting fluid and a preparation method thereof. The preparation method is characterized by comprising the following steps: preparation of a component A: respectively adding 3-8% of quaternary ammonium salt, 5-8% of Tween -40, 0.05-0.2% of calcium chloride, 0.01-0.08% of magnesium sulfate, 16-30% of gear oil 200# and 54-76% of deionized water into a reaction kettle for uniformly stirring, heating the mixture until the temperature is within 45-65 DEG C, and keeping the temperature for 20-30 minutes to obtain the component A; preparation of a component B: respectively adding 20-40% of extreme pressure antiwear additive, 2-10% of preservative, 5-20% of antirust, 0.04-0.3% of calcium chloride, 0.01-0.06% of magnesium sulfate and 30-72% of the deionized water into the reaction kettle for uniformly stirring, heating the mixture until the temperature is within 55-75 DEG C, and keeping the temperature for 25-35 minutes to obtain the component B; and after the component A and the component B are prepared, mixing and stirring the component A and the component B according to the mass ratio of 2:1-1:2 to be invalid, heating the mixture until the temperature is within 65-80 DEG C, keeping the temperature for 35-45 minutes, and then cooling to normal temperature to obtain the product of the invention. The product of the invention has the advantages of high wear resistance, water solubility and lubricating property, good anti-rust property, no corrosion, good cooling property, convenient cleaning, cheap price and the like.

The present invention discloses self-assembled bioadhesive anti-microbial, anti-fouling and/or anti-oxidant micro- and nano-structures comprising a plurality of amino acids or peptides, wherein each amino acid is an aromatic amino acid comprising a catecholic moiety, and/or each peptide comprises at least one aromatic amino acid comprising a catecholic moiety. Further disclosed are methods and kits for preparing these micro- and nano-structures. Further disclosed are uses of these micro- and nano-structures in pharmaceutical, cosmetic and medical devices applications.

The invention provides a silane hybrid quaternary ammonium salt modified polyisocyanate curing agent and a preparation method thereof. The preparation method includes the steps that by mass, 1.0-3.0%of alkylol amine, 2.0-4.0% of silane coupling agent and 90-94% of polyisocyanate react under the protection of the nitrogen atmosphere at the temperature of 40-60 DEG C till the NCO content of the system reaches a theoretical value, 0.05-0.5% of polymerization inhibitor is added, and thus a silane hybrid polyisocyanate curing agent containing tertiary amine is prepared; and then 2.0-4.0% of sultone is added to react with the silane hybrid polyisocyanate curing agent containing tertiary amine until the sultone is completely consumed, and cooling and discharging are conducted. By adopting the sultone hydrophilic modifier with strong hydrophilicity, the prepared curing agent can be dispersed in water, is low in viscosity and environment-friendly, and has the characteristics of excellent scratch resistance, transparency, storage stability and the like.

The present disclosure relates to textile coatings, and to nanometer sized particles of boron in solution used for textile coatings. In one embodiment, a nano-boron textile coating is comprised of a solution including silicon, a dispersant, a softener, and acetic acid mixed in water; and a plurality of nano-boron particles dispersed in the solution. A textile with an applied nano-boron textile coating, and a process for preparing and applying a textile coating are also disclosed.

The invention provides a light and high-strength dung leakage plate LFT-D forming process. The process comprises the following steps: (10) resin PP is quantified according to the weight of a template, is then heated and fused in a first-order double-screw extruder, and is sent to a feed port of a second-order double-screw extruder; (20) the fused PP and glass fiber are synchronously fed in the second-order double-screw extruder for mixed plastifying, and are extruded; (30) after being uniformly plastified by the second-order double-screw extruder, the raw material is cut by a second-order screw mold orifice cutter according to the weight of the dung leakage plate, and is conveyed to a taking displacement position with the temperature being preserved; and (40) a plurality of channel steels are arranged in a prefabricated mold side by side, and are suspended in the mold; and the raw material is taken into the press mold for compression molding to obtain a product. The dung leakage plate produced with the forming process has the advantages of light weight, enough strength and rigidity, durability and easy cleaning.