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39 results about "Calcium benzoate" patented technology

Calcium benzoate refers to the calcium salt of benzoic acid. When used in the food industry as a preservative, its E number is E213 (INS number 213); it is approved for use as a food additive in the EU, USA and Australia and New Zealand.

Methods of preparation and using antimicrobial products

Novel antimicrobial products and methods of making and using the same are shown, whereby the products can be used in the same or greater percentages as conventional microbial growth inhibitors without imparting an off-flavor, taste, color or odor to the products in which they are used. The antimicrobial products are formed by reacting azodicarbonamide or an ammonia gas with a compound selected from the group consisting of benzoic acid, sodium benzoate, calcium benzoate, potassium benzoate, acetic acid, sodium diacetate, paraben, niacin, calcium acetate, calcium diacetate, citric acid, lactic acid, fumaric acid, sorbic acid, sodium sorbate, calcium sorbate, potassium sorbate, propionic acid, sodium propionate, calcium propionate, potassium propionate and mixtures thereof. In one embodiment, the product is prepared by placing a layer of azodicarbonamide on a substrate and covering the layer with a gas permeable separator. The antimicrobial compound is then added on top of the separator, and the combination is heated to form the final product. In another embodiment, the product is prepared by exposing the antimicrobial compound to an ammonia gas. The ammonia gas reacts with free acids in the antimicrobial compound to convert the free acids into ammonium salts, thereby eliminating off-flavor and off-odor of the resulting antimicrobial product. The antimicrobial products prepared according to the present invention are suitable for use in foodstuffs, sanitation products, cosmetics, pharmaceuticals, and so forth.
Owner:TILLIN

Method of treating commercial grade products to remove undesirable odors and flavors

A method of treating antimicrobial products, dairy products, pharmaceutical products and other products having offensive tastes or odors to remove the off-odors and off-tastes from the products. The method involves exposing a selected commercial grade product that contains a small amount of free acid impurities to an ammonia gas. The ammonia gas reacts with the free acid impurities to convert the free acids into ammonium salts, thereby reducing or eliminating the off-flavor and off-odor of the product. The products to be treated include antimicrobial products selected from the group consisting of sodium benzoate, calcium benzoate, potassium benzoate, sodium diacetate, paraben, niacin, calcium acetate, calcium diacetate, sodium sorbate, calcium sorbate, potassium sorbate, sodium propionate, calcium propionate, potassium propionate and mixtures thereof; dairy products selected from the group consisting of casein, whey, skim milk powder, and calostrum; pharmaceutical products selected from the group consisting of acetaminiphen, aspirin, ibuprophen, dextromethorphan hydrobromide, guaejenesin, paracetamol, and sodium erythorbate; and various other products selected from the group consisting of butylate hydroxy tolulene, polydextrose powder, sodium acid sulfate, and sodium diacetate. The common characteristic of the commercial grades of each of these products is that they contain a small amount of free acid impurities that react favorably with ammonia gas.
Owner:TILLIN

Novel hydrogel coal field fire preventing and extinguishing material and using method thereof

The invention discloses a novel hydrogel coal field fire preventing and extinguishing material, which is prepared by mixing a fire preventing and extinguishing dry material and water according to a material-water mass ratio of 2-3:100; wherein the fire preventing and extinguishing dry material is prepared from the following components in percentage by mass: 80 to 85 percent of composite environment-friendly hydrogel material, 5 to 10 percent of composite anti-enzyme preservative and 10 to 15 percent of composite halogen salt; the composite environment-friendly hydrogel material is prepared from the following components in percentage by mass: 40 to 60 percent of instant polyanionic cellulose, 0.5 to 1.5 percent of high-viscosity polyacrylamide and 38.5 to 58.5 percent of super absorbent resin; the compound type anti-enzyme preservative is prepared from the following components in percentage by mass: 30 to 40 percent of calcium propionate, 15 to 30 percent of potassium sorbate, 15 to 20percent of calcium benzoate and 15 to 30 percent of dehydroacetic acid. The novel hydrogel coal field fire prevention and extinguishing material provided by the invention has good water retention performance, which forms a waterproof film with a certain thickness on the surface of a coal body, so that the product can quickly reduce the temperature of a coal field fire area, and effectively prevents air flow, so that spontaneous combustion of coal is inhibited.
Owner:LIAONING TECHNICAL UNIVERSITY

A method for preparing a mixed manganese cluster molecular-based magnetic material

The invention discloses a preparation method of a mixed manganese cluster molecular-based magnetic material, A magnetic material formed by A manganese clust nano molecular alloy, silver-sulfur nanocluster molecules, iron oxide, manganese oxide and zirconia and, , the non-magnetic material composed of barium titanate, Magnesium oxide, magnesium silicate, apatite and siliceous sandstone are respectively subjected to wet ball milling and freeze drying, and then is added with tetraethylene glycol dimethyl ether, Benzyldichlorosilane, sodium tartrate, calcium benzoate, glyceryl tricarboxylic acid,stabilize reaction and other raw materials, and then respectively through the step of gradient melting, twin screw extrusion, casting mold, rapid cooling of liquid nitrogen, freeze-solidification, nitrogen blow drying, high-temperature steam was, natural air drying and the like to prepare the mixed manganese cluster molecular-based magnetic materials. The mixed manganese clusters molecular-based magnetic materials prepared by this method have excellent electromagnetic properties, high frequency, magnetic flux density saturation, good temperature stability and mechanical impact, and can meet various needs in the industry.
Owner:吴江市聚盈电子材料科技有限公司

Greenhouse film for gardening and preparation method thereof

The invention discloses a greenhouse film for gardening and a preparation method thereof. The greenhouse film is prepared from the following raw materials: PET (Polyethylene Terephthalate), PVC (Polyvinyl Chloride), LDPE (Low-Density Polyethylene), polyvinyl alcohol, talcum powder, an antioxidant, an ultraviolet absorbent, polyester fiber, glass fiber, polybutylene succinate, calcium benzoate, polyethylene wax, polyethylene glycol and zinc oxide. A preparation process comprises the following steps: adding the PET, the PVC, the LDPE, the polyvinyl alcohol, the talcum powder, the polyester fiberand the glass powder into a high-speed stirring machine; stirring and mixing to obtain a mixture I; then adding the polybutylene succinate, the calcium benzoate, the polyethylene wax, the polyethylene glycol and the zinc oxide into the mixture I; after stirring and mixing, raising the temperature under a vacuum condition and keeping for certain time; then adding the antioxidant and the ultraviolet absorbent; after stirring and mixing, extruding and carrying out blow molding through a double-screw extruder to obtain the greenhouse film for gardening. The greenhouse film for gardening, providedby the invention, has good mechanical properties and air permeability.
Owner:镇江鑫源达园艺科技有限公司
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