7 results about "Acoric acid" patented technology

The invention discloses a low-foam acidic zinc plating additive and a preparation process thereof, and belongs to the technical field of electroplating additives, the additive comprises a low-foam softening agent and a water-based brightener, and the low-foam softening agent comprises the following raw materials in percentage by mass: 0.8-1.2% of polyethyleneimine, 0.03-0.06% of monododecyl phosphate potassium, 0.2-0.6% of water-soluble polyether amine and the balance of water. The water-based brightener is prepared from the following raw materials: 0.6 to 1.2 percent of 5-hydroxymethylfurfural, 0.2 to 0.4 percent of L-cysteine salt, 0.1 to 0.15 percent of 4-amino-2 (1H) pyrimidone, 0.05 to 0.1 percent of sodium salicylate, 1 to 1.5 percent of citric acid, 0.3 to 0.5 percent of alpha-ketoglutaric acid, 0.2 to 0.4 percent of erythorbic acid and the balance of water. The water-based formula is prepared by optimizing the components in the additive, the components are uniformly dispersed, the foam amount is low, and the plating quality is good.

The invention relates to the technical field of skin care essence, in particular to double-layer essence with an anti-aging effect and a preparation method thereof.The double-layer essence with the anti-aging effect is composed of a water phase layer and an oil phase layer; the water-phase layer is prepared from the following raw materials in percentage by mass: 3-8% of hydroxypropyl tetrahydropyrantriol, 0.1-0.5% of tetrahydromethylpyrimidine carboxylic acid, 0.01-0.1% of a pepper kava extract, 1-5% of lactobacillus / soybean milk fermentation product filtrate, 1-5% of vitamin C ethyl ether, 1-5% of acetylchitosamine, 3-8% of 1, 3-butanediol and the balance of water. The invention relates to an anti-aging mask which comprises the following components in percentage by weight: 1-10% of 1, 3-butanediol, 0.01-0.1% of sodium hyaluronate, 0.1-0.5% of a buffer system, 5-10% of glycerol and the balance of deionized The oil phase layer is prepared from the following raw materials: 0.5-2% of ascorbyl tetraisopalmitate, 11-44% of compound plant-derived grease and 0.05-0.3% of tocopheryl acetate, and the problems that existing essence oil is lack of a multi-dimensional synergistic anti-aging effect, and the stability and transdermal absorption efficiency of water-soluble active ingredients and oil-soluble ingredients are difficult to consider are solved.

The application discloses a low-foam acid zinc plating additive and a preparation process thereof, and belongs to the technical field of electroplating additives. The additive comprises a low-foam softener and a water-based brightener. The low-foam softener comprises the following raw materials in percentage by mass: polyethylene imine 0.8-1.2%, monododecyl phosphate potassium 0.03-0.06%, water-soluble polyether amine 0.2-0.6%, and the balance is water. The water-based brightener comprises the following raw materials: 5-hydroxymethyl furfural 0.6-1.2%, L-cysteine salt 0.2-0.4%, 4-amino-2(1H) pyrimidinone 0.1-0.15%, sodium salicylate 0.05-0.1%, citric acid 1-1.5%, alpha-ketoglutaric acid 0.3-0.5%, isoascorbic acid 0.2-0.4%, and the balance is water. The application optimizes the components in the additive, prepares a water-based formula, and the components are uniformly dispersed, the foam amount is low, and the plating layer quality is good.

Composition, in particular pharmaceutical composition, in the form of a fixed dosage (solid dosage form) for sucking and / or chewing, preferably for sucking, in particular lozenge, preferably for use in the prophylactic and / or therapeutic topical (local) treatment of inflammatory diseases of the mouth and throat, wherein the composition contains an effective, in particular pharmaceutically and / or therapeutically effective, amount of an active ingredient preferably suitable and / or effective for the topical (local) treatment of inflammatory diseases of the mouth and throat, in particular with antiseptic and / or antimicrobial properties, preferably with antibacterial and / or antiviral and / or antifungal properties, wherein the active ingredient is incorporated and / or embedded in a solid matrix, wherein the composition, in particular the solid dosage form and / or the matrix, releases the active ingredient upon topical (local) application and / or use, preferably by sucking and / or chewing, preferably by sucking, in the oral and pharyngeal cavity; wherein the active ingredient is octenidine, in particular in the form of a pharmaceutically compatible and / or physiologically acceptable salt or ester, preferably in the form of a pharmaceutically compatible and / or physiologically acceptable salt, particularly preferably octenidine dihydrochloride; and wherein the composition, in particular the solid dosage form and / or the matrix, furthermore and / or additionally contains at least one further ingredient (a) and / or (b), in particular (a) and (b), wherein the at least one further ingredient (a) and / or (b) is selected from the group of (a) Flavor modulators, in particular selected from the group of the following components (i), (ii) and / or (iii): (i) Bitter (taste) masking agents, in particular selected from the group consisting of bitter taste receptor antagonists, preferably 4-(2,2,3-trimethylcyclopentyl)butanoic acid, and saponins, preferably glycyrrhizic acid (glycyrrhizin) and its salts or esters and / or glycyrrhetinic acid (glycyrrhetin) and its salts or esters, complexing agents, in particular cyclodextrins, and combinations or mixtures thereof, (ii) Bitter substances, in particular coffee extract and / or tea extract and / or their respective bitter substances, preferably coffee extract and / or its bitter substances, (iii) preferably natural or nature-identical (aroma) oils and / or essential oils, in particular with antiseptic and / or antimicrobial properties, preferably with antibacterial, antifungal and / or antiviral properties, in particular selected from the group of anise oils, in particular star anise oil, peppermint oil, eucalyptus oil, lavender oil, tea tree oil, chamomile oil, clove oil, rosemary oil, caraway oil, cinnamon oil, sage oil and fennel oil, as well as combinations or mixtures thereof; in particular wherein the ingredient (a) and / or the flavor modulator comprises a combination of at least two different components (i), (ii) and / or (iii), preferably a combination of components (i), (ii) and (iii); (b) Acidulants, in particular saliva-stimulating and / or flavor-enhancing acidulants, preferably acidulants authorized under pharmaceutical and / or food law and / or acidulants authorized as pharmaceutical additives and / or food additives, in particular selected from the group of tartaric acid and its salts, in particular sodium tartrate, sodium potassium tartrate (Rochelle salt) and calcium tartrate, citric acid and its salts, metatartaric acid, fumaric acid, ascorbic acid, phosphoric acid and its salts, stannous chloride, in particular tin(II) chloride, malic acid, lactic acid, adipic acid, succinic acid and other pharmaceutically compatible and / or physiologically acceptable organic acids and their salts, as well as their combinations or mixtures.

This invention discloses the preparation of furan[3,4-d]-1,3,2-dioxathiol-4(3aH)-one, dihydro-,2-oxide, comprising the following steps: 1. Dissolving D-isoascorbic acid in water and adding sodium carbonate; 2. Adding 40 μL of 50% H2O2 aqueous solution dropwise. o C. Stir the reaction, then heat to 80°C. o C. Stir the reaction, filter while hot, wash with water to obtain a colorless and clear filtrate; 2. Quench the reaction with hydrochloric acid dropwise to acidity, evaporate to dryness under high vacuum to obtain a white solid; reflux with ethyl acetate, filter, evaporate the filtrate by rotary evaporation to obtain a crude intermediate, which is then processed to obtain a white needle-like crystalline intermediate; 3. Dissolve the white needle-like crystalline intermediate in acetonitrile, add thionyl chloride dropwise, and stir the reaction; 4. Pour the reaction solution into ice water, extract with dichloromethane, dry, filter, and evaporate by rotary evaporation to obtain a yellow solid crude product; further processing yields the product. The advantages of this invention are: simple process route, mild and easy-to-control reaction, low purification difficulty, few by-products, and high yield and purity.

The application belongs to the technical field of oil exploitation, and particularly relates to an iron ion stabilizer for oil field acidification and a preparation method thereof. The iron ion stabilizer for oil field acidification is composed of the following raw materials in percentage by weight: 0.1-0.3% of polymeric carboxylic acid, 0.1-0.3% of diethylenetriamine penta-methylene phosphonic acid, 0.05-0.1% of gluconic acid, 0.02-0.05% of isoascorbic acid, and the balance of water. The structural formula of the polymeric carboxylic acid is as follows: wherein n is a natural number greater than 2. The iron ion stabilizer has the advantages of strong iron ion stabilizing capacity and high temperature resistance. The highest iron ion stabilizing capacity at room temperature reaches 242 mg / ml, and the highest iron ion stabilizing capacity after constant temperature at 120 DEG C for 4 hours reaches 238 mg / ml.

The decontamination of surfaces can be made more affordable if the storage life of a decontamination agent used for the decontamination is extended. In particular, this basic concept is based on the finding that, for example, known decontamination solutions discolor or degenerate after some time. The destruction of such allotments ultimately considerably increases the costs of a corresponding decontamination. In particular, a water-soluble decontamination concentrate can comprise a mixture comprising at least three active substances, wherein a first active substance of the three active substances is an organic antioxidant, a second active substance of the three active substances is a metal salt, and a third active substance of the three active substances is at least one surface-active substance. Likewise, a decontamination solution containing at least three active substances, a first of which is an organic antioxidant, a second of which is metal ions, and a third of which is at least one surface-active substance, can be characterized in that the organic antioxidant comprises isoascorbic acid in order to make the decontamination of surfaces more affordable than in the prior art.