45 results about "Hydroxybenzoates" patented technology

The invention relates to a new method for synthesizing 3-cyclopropyl methoxy-4-(difluoromethoxy) benzoic acid. The method is characterized by taking 3-nitro-4-hydroxybenzoic acid ester as the raw material to obtain the 3-cyclopropyl methoxy-4-(difluoromethoxy) benzoic acid through alkylation, reduction, diazotization, hydrolysis, alkylation, deprotection and the like. The 3-cyclopropyl methoxy-4-(difluoromethoxy) benzoic acid is a key intermediate for synthesizing the drug roflumilast.

Polyolefin photovoltaic (PV) backsheets comprise a polypropylene layer stabilized with (A) at least one hindered amine with 2,2,6,6-tetraalkylpiperdine or 2,2,6,6-tetraakylpiperazinone, either or both in combination with a triazine moiety, (B) a thioester, and, optionally, (C) at least one hindered hydroxybenzoate, and/or (D) an ortho hydroxyl triazine compound. These PV backsheets exhibit a low flame spread index of <100 without the use of FR agents, and the polypropylene layer exhibits good weatherability while providing the required long term heat aging performance necessary for PV modules.

The invention discloses a method for measuring p-hydroxybenzoate in cosmetics and relates to a method for measuring components in cosmetics. The method comprises the following steps: A, performing tested sample treatment, namely preparing the tested cosmetics into diluent; B, performing spectral measurement, namely B1, preparing a background spectrum set, B2, determining the standard spectrum of p-hydroxybenzoate, and B3, performing spectral measurement on the tested cosmetics; C, performing positive test and content measurement, namely C1, performing positive test, calculating an included angle between the merged matrix and the standard spectrum of p-hydroxybenzoate, when the included angle is larger than 0.15, the p-hydroxybenzoate is judged to be negative, and the spectrum of the tested cosmetics is recorded into the background spectrum database, and when the included angle is smaller than 0.1, the p-hydroxybenzoate is stored in the tested cosmetics, the sample is positive, and continuing, and C2 performing content measurement, namely deducing the standard spectrum of p-hydroxybenzoate from the spectrum of the tested cosmetics, thereby obtaining the actual content of the p-hydroxybenzoate. The method is high in analysis efficiency, low in operation strength, low in analysis cost, high in robustness and easy to popularize and use.

An oil for a carbon fiber precursor acrylic fiber including: a hydroxybenzoate ester (A) indicated by formula (1a); an amino-modified silicone (H) indicated by formula (3e); and an organic compound (X) which is compatible with the hydroxybenzoate ester (A), in which a residual mass rate R1 at 300° C. in thermal mass analysis in an air atmosphere is 70-100 mass % inclusive, and which is a liquid at 100° C., and a carbon fiber precursor acrylic fiber bundle to which the oil for a carbon fiber precursor acrylic fiber is adhered.

A detergent including one or more neutral or overbased alkaline earth metal C₁₀ to C₄₀ hydrocarbyl substituted hydroxybenzoates, in which:

• • (i) the one or more neutral or overbased alkaline earth metal C₁₀ to C₄₀ hydrocarbyl substituted hydroxybenzoates is or includes one or more C₁₀ to C₄₀ hydrocarb-1-yl substituted hydroxybenzoates; or,
  • (ii) greater than 50 mole % of the one or more neutral or overbased alkaline earth metal C₁₀ to C₄₀ hydrocarbyl substituted hydroxybenzoates, based on the total number of moles of said C₁₀ to C₄₀ hydrocarbyl substituted hydroxybenzoates, is or includes one or more C₁₀ to C₄₀ hydrocarb-2-yl substituted hydroxybenzoates.

A shelf-stable concentrated antimicrobial composition comprising at least one cyclic carboxylic acid and/or salt thereof in an amount from about 2 wt. % to about 4 wt. %; at least one anionic surfactant and/or salt thereof in an amount from about 22 wt. % to about 32 wt %; at least one non-surfactant strong acid (i.e. having a pKa less than about 2.3) in an amount from about 8 wt. % to about 18 wt. %; and at least one chelating agent in an amount from about 0.1 wt. % to about 2 wt. %. The composition retains at least 90% of its original antimicrobial efficacy after storage for at least five years at room temperature, and is substantially free of additional antimicrobial compounds including hydrogen peroxide, sources of hydrogen peroxide, essential oils, parabens, aldehydes, aldehyde releasing agents, phenols, antiseptic alcohols, biguanides, peroxycarboxylic acids, quaternary ammonium compounds, chlorine compounds, enzymes, and etchants. Also described are methods for using the composition to reduce the microbial load on a surface comprising, optionally, the step of diluting the composition with water and/or an organic solvent and, optionally, adding an additional antimicrobial compound, e.g. hydrogen peroxide, prior to use.

The invention discloses a peony essence stock solution mask containing graphene and a preparation method thereof. The mask is composed of a component A and a component B. The component A is prepared from the components in parts by weight: 13-19 parts of peony flower stock solution, 9-15 parts of peony seed oil, 8-11 parts of glycerol, 7-12 parts of butanediol, 4-9 parts of an aloe extract, 3-5 parts of xanthan gum, 0.8-1.7 parts of hyaluronic acid, 0.5-0.8 part of hydroxyethyl cellulose, 0.03-0.06 part of hydroxybenzoate ester, and 55-72 parts of deionized water. The component B is graphene film cloth, and the component B is used as a carrier for carrying the component A. According to the peony essence stock solution mask containing graphene and the preparation method thereof, sufficient moisture is injected into skin, moisture in skin cuticle is prevented from being evaporated, and the graphene mask cloth of the component B has good compatibility, so that the loaded peony flower stock solution, the peony seed oil and the aloe extract are easy to absorb, the face is kept moist, the absorption of the skin is continuously promoted, and the skin is effectively improved.

A method for reducing antimicrobial compound levels in a liquid composition containing at least one antimicrobial compound. The method comprises contacting said liquid composition with a functionalized resin. Antimicrobial compounds that may be removed by this method include isothiazolin-3-ones, e.g., 2-methyl-4-isothiazolin-3-one; 5-chloro-2-methyl-4-isothiazolin-3-one; 2-n-octyl-4-isothiazolin-3-one; 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one; 1,2-benzisothiazolin-3-one and N-alkyl derivatives thereof, especially N-methyl and N-n-butyl; 2,2-dibromo-3-nitrilopropionamide (DBNPA); 2-bromo-2-nitropropanediol (BNPD); dithio-2,2′-bis(benzmethylamide) (DTBMA); hexetidine; chlorphenesin, C₁-C₄ alkyl-4-hydroxybenzoates (alkyl parabens); 3-iodopropynylbutylcarbamate (IPBC); formaldehyde releasers and mixtures thereof.

The invention is applicable to the technical field of bean products and provides a new-variety bean product formulation process and an extraction method. The new-variety bean product formulation process involves a flavor additive and soybean milk, wherein a ratio of the flavor additive to the soybean milk is 1:9, and the flavor additive is prepared from anhydrous milk fat, red date juice, an emulsifier, diacetyl tartaric acid esters of mono(di)glycerides, octenyl succinic acid modified starch, trisodium phosphate, sodium para-hydroxybenzoate and water. By adoption of a formula of a bean product prepared from the flavor additive and the soybean milk, a unique flavor of the bean product is realized. Due to proportional adding of the anhydrous milk fat, the red date juice, the emulsifier, diacetyl tartaric acid esters of mono(di)glycerides, octenyl succinic acid modified starch, trisodium phosphate, sodium para-hydroxybenzoate and water into the flavor additive, the bean product is endowed with a red date and milk fat blended flavor and is safe to eat due to freeness of essence additives.

The invention belongs to the technical field of disinfectant, and discloses a hand disinfectant and a preparation method thereof, and the specific method comprises the following steps: preparing raw material according to parts by weight; dissolving polyhexamethylene guanidine hydrochloride, Paraben, fatty alcohol-polyoxyethylene ether, hydroxypropyl methyl cellulose, peppermint oil and glycerol inpurified deionized water, and stirring to obtain a homogeneous solution; adding purified ionized water to a full amount, and carrying out constant volume and aging; inspecting the obtained intermediate product; if the product is qualified, performing potting and external packaging by using disinfectant plastic bottles and heads; and inspecting the finished product, and storing the qualified product in a finished product warehouse. The disinfectant disclosed by the invention has the excellent characteristics of broad sterilization spectrum, low effective concentration, high acting speed and easiness in dissolving in water, can be used at normal temperature, can inhibit bacteria for a long time, has no side effect and no corrosivity, and cleans and removes greasy dirt; the use is safe; theprice is moderate and transportation is convenient; and moreover, the disinfection has the effects of moistening skin and retaining water, and is high in sterilization capability and high in stability.

The invention provides a formula of a nylon hose material, wherein the nylon hose material at least takes a polyamide resin, a plasticizer and an impact modifier as production raw materials, the polyamide resin is obtained by copolymerizing short-chain odd-even nylon and short-chain even-even nylon, the plasticizer is one or a combination comprising a plurality of materials selected from higher alcohol, hydroxybenzoate, aromatic sulfonamide and phenol, and the impact modifier is one or a combination comprising a plurality of materials selected from polyolefin, an olefin copolymer and an elastomer. According to the invention, the nylon hose material has the characteristics of low price, high strength, good low-temperature flexibility, oil resistance, good dimensional stability, stable extrusion molding and the like compared with the long carbon chain nylon hose, and completely meets the requirements of the nylon hose for vehicles.

A trunk piston marine engine lubricant comprises in respective minor amounts (A) an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent system, and (B) a hydrocarbyl-subsituted succinic acid anhydride, preferably made by halogen- or radical-assisted fractionalization processes, where the ratio of succinic anhydride to hydrocarbyl chains is in the range of 1.4 to 4. The lubricant, when used to lubricate such an engine fuelled by heavy fuel oil, exhibits improved control of asphaltene precipitation and deposition on engine surfaces.

The invention provides a medical ultrasonic coupling agent and a preparation method thereof, and belongs to the technical field of medical ultrasonic coupling agents. The provided ultrasonic coupling agent is prepared from the following preparation raw materials: 0.01-0.02% of valrocemide, 0.01-0.1% of dodecyl dimethyl benzyl ammonium chloride, 0.1-0.8% of p-hydroxybenzoate, 1.0-3.0% of isopropyl palmitate, 0.1-0.5% of fatty alcohol-polyoxyethylene ether, 0.1-0.6% of cross-linked polyacrylic resin, 5.0-10.0% of glycerol, 0.1-0.5% of triethanolamine and the balance water. The valrocemide has a new function of inhibiting escherichia coli, staphylococcus aureus and candida albicans. A novel medical ultrasonic coupling agent is prepared by using the valrocemide. The prepared medical ultrasonic coupling agent can realize broad-spectrum sterilization and high-efficiency sterilization, sterilizes and disinfects an ultrasonic probe in a whole ultrasonic diagnosis and treatment process, and effectively reduces a cross infection risk in an ultrasonic detection process.

The invention discloses a preparation method of an anti-felting woolen overcoat. The preparation method comprises the following steps: adding adipic acid, ethyltriethoxysilane, o-hydroxybenzoate, ethyl acrylate, dodecyl trimethoxysilane, guar gum hydroxypropyl trimethyl ammonium chloride, hexamethylenediamine dodecyl sulfate, methylcyclosiloxane and double carboxyl-terminated polyethylene glycol into a reactor, heating to react under the protection of nitrogen, then adding didecyl dimethyl ammonium chloride, natural saponin, titanium isopropoxide and phosphorous acid, carrying out vacuum reaction for 2-3 h, cooling to 70 DEG C after the reaction, and stopping the reaction to obtain a finishing agent; and soaking the woolen overcoat in the finishing agent for padding, drying the padded woolen overcoat, and baking the woolen overcoat after drying. The preparation method is simple in production process and low in manufacturing cost, the finished woolen overcoat has excellent anti-felting performance and high strength retention rate, meanwhile can keep the original flexibility and hand feeling of the woolen overcoat, and has the characteristics of washing resistance, safety and harmlessness.

The invention discloses a traditional Chinese medicine formula for treating pulmonary tuberculosis and a preparation method thereof, and relates to the technical field of traditional Chinese medicine compositions. The traditional Chinese medicine formula for preparing every 100 pills is prepared from the following main raw materials by weight: 80g of buddleia lindleyana stem powder, 0.4-0.8 g of a preservative, 1.2-1.8 g of a flavoring agent, 20 g of bletilla striata, 12 g of astragalus membranaceus, 12 g of schisandra chinensis and 3-5 g of tortoise plastron. The preparation method comprises the following steps that S1, stems of harvested buddleia plants are sequentially cut, and aired and dried under outdoor sunshine; S2, the dried buddleia lindleyana stems are ground into powder through a medicine roller; and S3, the powdery medicinal material prepared in the step S2 is added into a boiler, and then asparagine phenylalanine methyl ester and butyl p-hydroxybenzoate are added. The buddleia lindleyana stems containing more glucoside and acacetin in traditional Chinese medicinal materials are ground into powder and then prepared into the pills, half of the pills are taken with plain boiled water before three meals every day, 15 days are taken as a course of treatment, and the remarkable effect can be achieved.