226 results about "Ethyl-p-hydroxybenzoate" patented technology

The invention relates to toothpaste including radix notoginseng and propolis and a preparation method thereof. The toothpaste comprises the following raw materials according to percentage by weight: 0.1-1.5% of radix notoginseng extract, 0.03-3.2% of propolis powder, 25-46% of natural calcium carbonate, 5-15% of silica, 3-20% of glycerol, -4001-10% of polyethylene glycol, 0.2-1.0% of sodium pyrophosphate, 0.2-1.5% of xanthan gum, 0.1-1.5% of carboxymethyl cellulose, 3-25% of sorbic alcohol, 0.1-1% of saccharin sodium salt, 1-5% of lauryl sodium sulphate, 0.05-0.5% of sodium ethyl p-hydroxybenzoate, 0.02-2% of sodium propylparaben, 0.3-3% of essence, 0.01-0.3% of triclosan, 0.05-2% of zinc citrate, and the balance of water. The natural nursing toothpaste including the radix notoginseng extract has obvious curative effects on gingivitis, bleeding gums, dental ulcer and the like. The propolis has the functions of diminishing inflammation, easing pain and stopping bleeding. The radix notoginseng and the propolis are used in the toothpaste at the same time so that the toothpaste has more obvious effects for stopping pain and resisting gingivitis, bleeding gums and pain.

The invention provides an artificial diet for Lepidopterous young larvae. The artificial diet for the Lepidopterous young larvae is prepared from the following raw materials in percentage by weight: 2.0 to 3.0 percent of soybean cake meal, 7.0 to 10.0 percent of corn flour, 2.0 to 3.0 percent of Saccharomyces cerevisiae Hansen, 7.0 to 10.0 percent of tomato sauce, 0.8 to 1.2 percent of sucrose, 1.2 to 1.4 percent of agar, 0.2 to 0.5 percent of sorbic acid, 0.05 to 0.1 percent of vitamin B complex, 0.2 to 0.4 percent of ascorbic acid, 0.1 to 0.2 percent of ethyl p-hydroxybenzoate, 0.2 to 0.4 percent of propionic acid and 71.0 to 77.0 percent of water. The invention also provides a method for preparing the artificial diet and application of the artificial diet. The artificial diet is low in manufacturing cost, easy to operate and high in practicability; and by the artificial diet and the raising method for raising the Lepidopterous young larvae, the survival rate of the larvae is high, the workload is low, and manpower and material resources are greatly saved.

The invention discloses a humidifying piece and a humidifying mask with the same. The humidifying piece comprises moisturizing components, wherein the moisturizing components include one or multiple components of hyaluronic acid, hydroxyethyl cellulose, trimethyl glycine and ethyl p-hydroxybenzoate. Medical components can be selectively added into the humidifying piece and include mint, eucalyptus oil or natural borneol. The humidifying piece comprising the moisturizing components is placed in an interlayer of a mask body to provide moisture needed by nasal cavities of a human body, the humidity of the nasal cavities and an oral cavity is kept, medicines are continuously fed, nasal mucosa drying is avoided, and the humidifying mask is suitable for wearing in dry air environments or after various rhinitis or nasal operations.

The invention discloses azithromycin eye drops and the preparation. The eye drops is a stable ophthalmic preparation made by azithromycin or axithromycin salt as the active ingredient which is assisted by a stabilizer, a pH regulator, an antiseptic, an isotonic agent and a pasting agent; wherein the optimized stabilizer is propanetriol, the pH regulator is sodium phosphate buffer, the antiseptic is Ethyl p-hydroxybenzoate, the isotonic agent is sodium chloride and the pasting agent is sodium hyaluronate. Compared with oral delivery, the invention has the advantages of less dose, small side effect on a whole body, direct absorption at the ocular region, quick achieving effective antibacterial concentration and quick developing treating function; and compared with ophthalmic gel or ophthalmic ointment, the invention has the advantages of convenient application and good tolerance for a patient; thus the reasonable preparation process and stable performance of the invention guarantees the clarity and stability of eye drops.

The invention discloses a compound preservative and an application thereof and aims to provide one compound preservative which is simple in preparation method and is good in antiseptic and antibacterial properties. The preservative disclosed by the invention is used as an additive of a skin care product. The technical key points are as follows: the preservative is composed of a solute and phenoxyethanol in a mass ratio of 1 to 1, wherein the solute is composed of the following components in mass percentage: 1%-40% of methyl p-hydroxybenzoate, 1%-40% of ethyl p-hydroxybenzoate, 1%-20% of propyl p-hydroxybenzoate and 1%-15% of butyl p-hydroxybenzoate; the sum of all the components is 100. The invention provides the application of the compound preservative as the additive of the skin care product, belonging to the technical field of household chemicals.

Compound amur cork-tree temperature-sensitive gel for treating sore and ulcer and traumatic infection and a preparing method thereof are provided. The temperature-sensitive gel comprises 5-15% by weight of a compound amur cork-tree extract liquid, 18-20% by weight of poloxamer 407, 1.5-2.5% by weight of poloxamer 188, 5-10% by weight of propylene glycol, 5-10% by weight of glycerol, 0.5-1% by weight of ethyl p-hydroxybenzoate and 41.5-65% by weight of distilled water. A problem that gel structures are irreversibly destroyed because traditional Chinese medicine extracts at present are complex in components and react with base auxiliary materials, or because traditional Chinese medicine extract liquids are hypertonic systems and cause exosmosis of water in gel substrate network structures is overcome. A gel substrate adopted can be primarily determined according to physical and chemical properties and dosage forms of effective components.

The invention relates to a pigment composition for drawing of children and a preparation method thereof. The pigment composition is characterized by comprising the following components in parts by weight: 6.0-14.0 parts of white oil, 1.0-8.0 parts of higher fatty alcohol, 1.0-5.0 parts of oil-soluble surfactant, 0.1-0.5 part of ethyl p-Hydroxybenzoate, 70.0-85.0 parts of deionized water, 1.0-4.0 parts of glycerol, 1.0-4.0 parts of polyvinylpyrrolidone, 0.5-5.0 parts of water-soluble surfactant, 0.1-0.5 part of potassium sorbate and 0.5-4.0 parts of food colourant. The preparation method comprises the following steps: using white oil, higher fatty alcohol, oil-soluble surfactant and ethyl p-Hydroxybenzoate to prepare an oil phase material; using deionized water, glycerin, polyvinylpyrrolidone, water-soluble surfactant and potassium sorbate to prepare an aqueous phase material; and then adding the aqueous phase material in the oil phase material, evenly emulsifying and cooling to the room temperature to obtain the pigment for drawing of children. Compared with the prior art, the dosage of the colorant is low, the coating of the product is smooth, the color is bright, the cost is low, the storage stability is good and the production efficiency is obviously increased.

The invention discloses a polyvinyl chloride cable material with excellent mechanical properties. The polyvinyl chloride cable material is prepared from the following raw materials in parts by weight: 15-25 parts of polypropylene, 20-40 parts of polyvinyl chloride, 10-18 parts of epoxy resin, 4-8 parts of modified bentonite, 10-15 parts of silk fiber, 4-10 parts of illite, 3-9 parts of zinc borate, 2-6 parts of a silane coupling agent KH550, 8-12 parts of potassium titanate fiber, 6-12 parts of asbestos fiber, 1.5-3.5 parts of glyoxal, 0.4-1.2 parts of dioctyl adipate, 2-6 parts of coal tar, 0.7-1.1 parts of ethyl p-hydroxybenzoate, 10-20 parts of sweet potato flour, 0.8-1.6 parts of urea, 2-4 parts of tertiary butylhydroquinone and 6-10 parts of tall oil. The polyvinyl chloride cable material with excellent mechanical properties has good thermal insulation property, biodegradability, tensile property and shock resistance and has a low water absorption rate.

A compound sulfapyrimidine silver zinc ointment for treating burn is prepared from sulfapyrimidine silver, sulfapyrimidine zinc, osmotic aid medical auxiliary, ethyl p-hydroxybenzoate, glycerine and distilled water through heating oil phase to 75 deg.C, heating water phase to 75 deg.C, slowly adding oil phase to water phase while stirring, cooling, adding sulfapyrimidine silver and sulfapyrimidine zinc, grinding, and examining. Its advantage is strong antibacterial function.

A method for preparing a lidocaine hydrochloride mucilage comprises the following steps: a formula amount of ethyl p-hydroxybenzoate is put into purified water which accounts for 25% of the total volume of the ethyl p-hydroxybenzoate, heated and stirred until complete dissolution, added with a formula amount of lidocaine hydrochloride and stirred for dissolution, added with a formula amount of glycerol and stirred evenly; additionally, a formula amount of sodium carboxymethyl cellulose is added to purified water which accounts for 50% of the total volume of the sodium carboxymethyl cellulose, and stirred for complete swelling; the two solutions obtained are mixed evenly, and added with 0.1N sodium hydroxide to adjust the pH value to 6.0-7.0; the monarch drug content of the obtained mucilage is determined; the mucilage is added with water to sufficient amount, mixed evenly and filled, and sterilized by 110 DEG C saturated vapor for 30 minutes; inspected under a lamp and packaged to obtain the finished product. Compared with the prior art, the lidocaine hydrochloride mucilage has the advantages of matching anaesthesia and inspection time, good lubricating property and sterility assurance level.

The invention discloses heat-resistant high-strength organic glass and a preparation method thereof. The organic glass is prepared from the following raw materials in parts by weight: methyl methacrylate, methacrylamide, acrylonitrile, isophorone diisocyanate, ethylene glycol dimethacrylate, triallyl isocyanurate, glycerol, acetyl tributyl citrate, dibutyl phthalate, high-density polyethylene, glass fibers, carbon fibers, polyvinyl alcohol fibers, modified montmorillonite, nano silicon dioxide, ammonium persulfate, azodiisobutyronitrile, di-iso-decylphthalate, polyethylene acrylate, ethyl p-hydroxybenzoate and sodium stearate. The invention provides the heat-resistant high-strength organic glass and the preparation method thereof. The organic glass has high strength, high vitrification temperature, good heat resistance, long service life and good economic benefit.

The invention discloses a protein plastic material comprising the following raw materials in parts by weight: 45-50 parts of PBS (poly butylenes succinate), 30-35 parts of poly-beta-hydroxybutyric acid (PHB), 20-25 parts of peanut protein powder, 2.5-3 parts of potassium titanate fiber, 5-7 parts of silk fiber, 1.2-1.7 parts of a silane coupling agent KH570, 2-3 parts of sodium sorbate, 1.1-1.6 parts of ethyl p-hydroxybenzoate, 1.7-1.9 parts of diisooctyl phthalate (DIOP), 3-6 parts of epoxidized soybean oil, 3-5 parts of starch acetate, 15-18 parts of talcum powder, 7-11 parts of wollastonite powder, 5-9 parts of calcite powder and 1-1.4 parts of tert-butylhydroquinone (TBHQ). The protein plastic material disclosed by the invention can be decomposed by microorganisms, and is strong in ductility and good in impact resistance and oxidation resistance, the generation of white pollution can be avoided and the consumption of agricultural product resources can also be reduced.

The present invention discloses a method for synthesizing ethyl p-hydroxybenzoate through catalysis of a modified metal oxide type solid super acid. The method comprises: (1) adopting a modified metal oxide type solid super acid as a catalyst, heating p-hydroxybenzoic acid and excess ethanol, carrying out an esterification reaction at a reflux temperature of 75-85 DEG C, and co-boiling part of the ethanol and the water produced by the reaction so as to take away the ethanol; and (2) after reacting for 3-4 h, filtering to separate and recover the solid super acid catalyst, wherein the filtrate presents the yellow oil state; and carrying out rotary evaporation to remove the excess ethanol to obtain the ethyl p-hydroxybenzoate. According to the present invention, the modified metal oxide type solid super acid is adopted as the catalyst for the ethyl p-hydroxybenzoate synthesis reaction, such that the catalysis effect is significant, the environment protection effect is provided, the solid super acid is easily recovered and regenerated, can maintain the high activity and can be reused.

The invention provides an antibacterial textile material and a preparation method of the antibacterial textile material. The textile material is prepared from the following ingredients: a polyester fiber, a soybean fiber, a bamboo carbon fiber, epoxy resin, ethyl p-hydroxybenzoate, ethyl orthosilicate, hydroxypropyl methyl cellulose, a calcium carbonate nanowire, a bactericide, an adhesive, a dispersing agent, a heat stabilizer and water. The prepared textile material has a good sterilization effect, low possibility of contamination, and a good oil-proof effect, can meet industrial requirements and has better application prospects.

The invention discloses crazing-resistance and high-toughness organic glass and a preparation method thereof. The organic glass is prepared from the following raw materials in parts by weight: methyl methacrylate, isobornyl methacrylate, ethylene glycol dimethacrylate, epoxidized soybean oil acrylate, an impact-resistant modifier, ethanol, polyacrylamide, rubber particles, polybutyl acrylate, ternary copolymerized nylon, modified nano-silicon dioxide, diisopropyl peroxydicarbonate, dicumyl peroxide, dioctyl phthalate, ethyl p-hydroxybenzoate, zinc stearate and emulsified silicone oil. The invention provides the crazing-resistance and high-toughness organic glass and the preparation method thereof; the organic glass disclosed by the invention has good toughness, heat resistance and crazing resistance, is not easy to damage and has long service life and good economic benefits.

The invention discloses a peach blossom toner and a making method thereof. The peach blossom toner comprises, by mass, 28-32 parts of peach blossom, 18-22 parts of mulberries, 8-12 parts of potatoes, 6-8 parts of carrots, 6-8 parts of lemons, 6-8 parts of cucumbers, 6-8 parts of apples, 6-8 parts of kiwi fruits, 4-6 parts of pawpaw, 40-50 parts of purified water, 3-5 parts of glycerinum, 0.1-0.3 part of essence, 0.02-0.06 part of sorbitol, 0.003-0.005 part of propylene glycol, 0.0021-0.0081 part of ethyl p-hydroxybenzoate and 0.001-0.005 part of EDTA disodium. According to the peach blossom toner, high-quality peach blossom juice is extracted, and other natural deep-moisturizing plant preparations are added, so that nutritions needed by skin are supplemented; meanwhile, the skin moisturizing capacity can be roused, and a protective membrane is formed on the face; the dry, wrinkled and dark skin is improved, and the water balance and acid-base balance of the skin are regulated.

The invention discloses a wet tissue for a refrigerator. The wet tissue comprises a wet tissue body, wherein a mixed solution is dissolved into the wet tissue body, and comprises a moisturizer, a solubilizer, a sanitizer, a preservative, a flavor enhancer, a deodorant and deionized water; the moisturizer is one or more of propylene glycol, xylitol, chloroacetic acid and mineral oil; the solubilizer adopts one or more of potassium, sodium carboxymethylcellulose, fatty amine polyoxyethylene ether, dipotassium glycyrrhizinate, sodium citrate and benzalkonium bromide; the sanitizer adopts one or more of sodium benzoate and ethyl alcohol; the preservative adopts one or more of methyl parahydroxybenzoats, ethyl p-hydroxybenzoate, sodium dodecyl sulfate and salicylic acid; the flavor enhancer adopts one or more of vanillin and menthol; and the deodorant adopts one or more of aluminum dihydrogen triphosphate, an aloe extract liquid, pericarpium citri reticulatae and eugenol.

The invention discloses a detection method for simultaneously determining various antibacterial agents in eye drops. Detection of eleven antibacterial agents (comprising chlorhexidine, benzyl alcohol, chlorobutanol, sorbic acid, benzoic acid, methyl p-hydroxybenzoate, ethyl p-hydroxybenzoate, propyl p-hydroxybenzoate, thimerosal, benzalkonium chloride and benzalkonium bromide) belonging to six types in the eye drops can be completed only through one-time experiment by adopting the method. The method adopting liquid chromatography has the advantages of good specialty, accurate qualitative and quantitative effects, high quantity of types and kinds of the simultaneously detected antibacterial agents, fast detection speed, suitableness for different brands of eye drops produced in different manufacturers, wide application range, and stable and reliable effect.