175 results about "Pyrrolidonecarboxylic Acid" patented technology

Photostable cosmetic compositions contain, formulated into a cosmetically acceptable vehicle, at least one UV-screening system that includes:(a) at least one dibenzoylmethane compound, and(b) at least one 2-pyrrolidinone-4-carboxy ester compound having the following formula (I):in which:R1 is a linear or branched C1-C20 alkyl radical, andR2 is a linear or branched C1-C20 alkyl radical which optionally includes a C5-C6 ring member, the phenyl radical, the benzyl radical or the phenethyl radical.

The invention belongs to the technical field of daily care products and discloses a facial mask with the functions of improving skin barrier and delaying senescence and a preparation method thereof. The facial mask comprises the following components in percentage by weight: 0.05-4 percent of macromolecule hyaluronic acid, 0.1-3 percent of middle molecule hyaluronic acid, 0.1-5 percent of micromolecule hyaluronic acid, 0.05-3 percent of oligomeric hyaluronic acid, 0.5-6 percent of grape seed extract, 0.5-6 percent of purslane extract, 2-12 percent of hydroxyethyl urea, 1-6 percent of sodium pyrrolidonecarboxylate, 0.1-1 percent of allantoin, 2-12 percent of butanediol, 0.05-0.3 percent of thickening agent and the balance of deionized water. According to the facial mask disclosed by the invention, by reasonably combining natural compounds with plant extracts, the synergistic effect is realized, and the functions of better improving the skin barrier and delaying the senescence are achieved.

The present invention relates to a wetting solution for manufacturing wet wipes or other wet flexible materials, and to such wet wipes for cosmetic, body care, dermatological and / or cleaning purposes, such as cleaning wipes, facial cleaning wipes, make-up remover wipes, refreshment wipes, baby wipes, wet toilet paper or eyeglass cleaning wipes, wherein the preferably aqueous wetting solution contains at least one amino acid ester, preferably from the group of pyrrolidone carboxylic acid esters, as an emulsifier. The invention further relates to the use of such amino acid esters as emulsifiers in wetting solutions for manufacturing said wet tissues.

The invention provides a dye-type non-dry watercolor ink composition, which comprises the following components in part by weight: (a) 0.5 to 7.0 parts of dye, (b) 10.0 to 15.0 parts of moisturizing agent, (c) 0.05 to 0.3 part of antiseptic and mildew-proof agent, (d) 0.1 to 0.5 part of auxiliary agent and (e) 77.2 to 84.35 parts of water, wherein the components (a) to (e) account for 95 to 100 percent of the total weight of the composition; the (b) moisturizing agent is a compound moisturizing agent consisting of two moisturizing agents, wherein the first moisturizing agent is may be one or more of glycerol, ethylene glycol, propylene glycol, polyethylene glycol, diethylene glycol, triethylene glycol and sorbitol; the second moisturizing agent is selected from one or more of sodium lactate, hyaluronic acid, pyrrolidone carboxylic acid, natural moisturizing factor (NMF) and amino acid; and the weight ratio of the first moisturizing agent to the second moisturizing agent is (2-3): 1.

A process for synthesizing theanine features that L-pyrrolidone carboxylic acid and anhydrous ethylamine directly take part in reaction in inert gas atmosphere at 60-100 deg.c and 6-12 MPa to obtain L-theanine. Its advantages are high output rate up to 38%, and short reaction time.

The invention relates to the technical field of natural skin care products, in particular to an eaglewood whitening facial cleanser and a preparation method thereof. The eaglewood whitening facial cleanser is composed of the following raw materials by mass: 2-8% of an eaglewood extract, 5-18% of a Chinese herb extract, 2-10% of an aloe extract, 1-1.5% of lecithin, 2-4% of TWEEN 80, 4-8% of compound vitamin, 1-2% of citric acid, 7-15% of pyrrolidone carboxylic acid polyglycol ester, 25-40% of cocamidopropyl betaine (CAB-35), and the balance deionized water. The facial cleanser provided by the invention takes pure natural, fragrant and skin care eaglewood and Chinese herb extracts as active ingredients, the active ingredients are compounded with certain emulsification component lecithin and natural vitamin to prepare the facial cleanser. With the efficacy of whitening skin, lightening pigmentation, removing color spots, and keeping skin moisture, the whitening facial cleanser can kill or inhibit bacteria attached on the skin surface, also can delay aging, and promote epithelium regeneration.

The present invention provides a composition which suppresses inflammation of the skin. The composition of the present invention contains zinc pyrrolidonecarboxylate. The composition of the present invention may be formulated as a cosmetic or any externally applied agent.

The invention relates to a modified polyactic acid composition for a cigarette filter stick and a preparation method thereof. The composition comprises following parts of raw materials, by weight, 100 parts of polyactic acid, 0.02-3 parts of polyactic acid-beta-cyclodextrin, 0.08-5 parts of sodium carbonate, 0.05-5 parts of sodium pyrrolidonecarboxylate, 0.01-4 parts of vitamin and 0.01-8 parts of polyacrylamide. The filter stick prepared through the polyactic acid composition is better in absorbing performance on smoke compared with the prior art and good in comprehensive performance, and a part of indexes of the filter stick exceed those of a cellulose acetate filter stick.

The invention discloses wrinkle removing, anti-aging, skin activating and scar fading repair essence which comprises components in parts by weight as follows: 600-850 parts of sterile water, 60-200 parts of glycerin, 30-80 parts of sodium pyrrolidone carboxylic acid, 30-80 parts of 1,3-butanediol, 3-10 parts of collagen, 5-20 parts of panthenol, 3-10 parts of allantoin, 10-40 parts of hydroxyproline, 2-10 parts of bisabolol, 2-10 parts of hyaluronic acid, 0.5-2 parts of recombinant human epidermal growth factors and 1-5 parts of diazolidinyl urea. The preparation method comprises the following steps: (1), sterile water, glycerin, sodium pyrrolidone carboxylic acid, 1,3-butanediol and collagen are mixed uniformly with allantoin and are heated for 20 min at 85 DEG C; (2), the mixture is stirred for 20 min at the speed of 30 rpm and is cooled; (3), panthenol and hydroxyproline are added when the temperature is 55 DEG C, the mixture is uniformly mixed, residual components are added when the temperature is 40 DEG C, the mixture is uniformly mixed and then homogenized for 30s, and discharging is performed when the temperature is 30 DEG C, and the repair essence is obtained.

The invention relates to an oil control and acne removal composition and an application thereof. The oil control and acne removal composition comprises, by weight, 2-25 parts of water-soluble polyurethane, 5-25 parts of kaolin, 1-5 parts of titanium dioxide, 3-10 parts of dipropylene glycol, 0.1-1 part of zinc pyrrolidone carboxylate and 1-5 parts of an anti-acne active substance. A polyurethane-containing mud film is produced by adopting the aqueous polyurethane as a film forming component and selecting the dipropylene glycol as a film forming assistant, the kaolin controls oil through externally adsorbing the oil, and octanoylglycine, sarcosine, Cinnamomum zeylanicum bark extract and zinc salt of strong acid of pyrrolidone can inhibit the oil secretion through inhibiting 5alpha-reductase, so the composition can effectively inhibit acne propionibacteria of acne skins and effectively restore acnes on oily skins.

Aqueous preservative solutions with a high amino acid content which is excellent in preservation, particularly a preservative effect on fungi, and safety, and is excellent in storage stability so as not to cause a problem such as depositing, coloring or smelling even when it is stored for a long time, and when incorporated in a cosmetic, is capable of imparting a high moisturizing effect without causing a sticky feeling, and imparting an effect of preventing dyed hair from color fading, can be achieved by incorporating pyrrolidone carboxylic acid and / or a salt thereof (Component A), a basic amino acid and / or a salt thereof (Component B), an acidic amino acid and / or a salt thereof (Component C), a neutral amino acid and / or a salt thereof (Component D) and lactic acid and / or a salt thereof (Component E) at a specific incorporation ratio and at a specific pH.

The invention relates to a whitening and moisturizing toner which is especially used for human face skin. The whitening and moisturizing toner is prepared by the following steps: heating 3-5 parts of 1,3-butylene glycol, 4-6 parts of sodium pyrrolidone carboxylate, 0.2-0.4 part of dipotassium glycyrrhizinate, 2-4 parts of NMF-50, 4-6 parts of antiallergic agent (CD-2901), 100-110 parts of pure water, 4-6 parts of hyaluronic acid (1%), 1.5-2.5 parts of arbutin, 4-6 parts of nonane diacid derivative and the like, keeping the temperature, and stirring. Compared with the prior art, the invention has the following advantages: 1. the whitening and moisturizing toner does not have the smell or color of Chinese medicinal herbs, and thus, is welcomed by users; 2. since the antiallergic agent (CD-2901) is added into the product, the whitening and moisturizing toner can prevent skin allergy, so the users can use the whitening and moisturizing toner safely; and 3. since the whitening agent, moisturizing agent and humectant are added into the whitening and moisturizing toner, the whitening and moisturizing toner not only can soften the skin, but also can perform the function of nourishing the skin.

The invention relates to a nourishing mask and a preparation method thereof, in particular to the nourishing mask taking less yeast as a main raw material and the preparation method thereof. The nourishing mask is prepared from the following raw materials in percentage by weight: 30 to 45 percent of lees yeast, 5 to 10 percent of pearl powder, 5 to 10 percent of beer malt starch, 5 to 10 percent of vitamin E, 5 percent of sodium pyrrolidonecarboxylate, 0.5 percent of diazolidinyl urea, 0.02 to 0.05 percent of natural aromatic oil, 10 percent of polyvinyl alcohol, 1.5 percent of polyoxyethylene sorbitan monolaurate, 5 percent of glycerin and the balance of deionized water. The product satisfies the needs of users in modern society in the pursuing of nutritional health and beauty, and ensures remarkable skin care effects and stable quality.

The invention relates to a silicon-oil-free composition with a scalp care function and a hair conditioner. The silicon-oil-free composition is prepared from at least any four components in the following components in percentage by mass: 0.1-2% of hydrolyzed corn starch, 0.1-2% of piroctone olamine, 0.1-2% of sodium L-2-pyrrolidone-5-carboxylate, 0.1-1% of hydrolyzed rice proteins, 0.1-1% of sodium polyglutamate, 0.01-1% of flos eriocauli flower / stem extracts, 0.01-1% of raspberry juice, 0.01-1% of mentha piperita leaf extracts, 0.01-1% of ginger root extracts and 0.01-1% of camellia seed oil. The composition and the hair conditioner disclosed by the invention are mild in character and non-irritant and capable of keeping the hair more gentle and smooth after being used for washing hair, can be directly applied to hair, has the effects of moisturizing, nourishing, relieving itching and inhibiting bacteria and can be used for relieving the problems of head itching and scurf generating; and silicon oil is replaced with vegetable oil and fat, so that the scalp problem caused by silicon oil accumulation is effectively avoided.

The invention relates to an acne-removing composition and a preparation method thereof. The acne-removing composition is characterized by comprising 1%-20% by mass of acne-removing active matter; the acne-removing active matter is composed of 10-15 parts of zinc pyrrolidone carboxylic acid, 4-6 parts of sophorolipid, 5-8 parts of bromelain, 8-12 parts of amur cork tree bark extract, 8-16 parts of purple coneflower extract, 12-18 parts of lithospermum extract, 3-8 parts of humic acid and 40-50 parts of isomalt. The acne-removing composition has the advantages of being excellent in acne-removing effect, safe, stable and convenient to prepare.

The invention provides a PVC compound stabilizer. The PVC compound stabilizer is characterized by being composed of, by mass, 85-90% of a main stabilizing agent and 5-15% of a subsidiary stabilizing agent; the main stabilizing agent is composed of polyvinylpyrrolidone, bis(5-oxo-L-prolinato-N1,O2) zinc, calcium disodium ethylenediamine tetraacetate and titanium tetraisopropanolate, and the subsidiary stabilizing agent is composed of N,N-ethylene bis-stearamide, pentaerythrityl tetrastearate, epoxidized linseed oil and mannitol. The invention further discloses a preparation method of the PVC compound stabilizer. The PVC compound stabilizer has the advantages of being free of toxin, environmentally friendly, good in lubricity and the like, is high in thermal stability, high in transparency, high in impact resistance and high in profile welded corner strength, can reduce damage to PVC molecules caused by ultraviolet light, improve outdoor aging performance of a product and further has good internal and external lubricating properties, and processing can be conducted stably.

The invention discloses an acne removing and oil controlling microemulsion gel and a preparation method thereof. The microemulsion gel is prepared from the following raw materials: 0.1-2 parts of salicylic acid, 0.1-3 parts of nicotinamide, 0.1-3 parts of ascorbic acid, 0.01-0.1 part of bisabolol, 0.01-0.2 part of zinc pyrrolidonecarboxylate, 0.01-0.5 parts of panthenol, 0.01-0.2 part of dipotassium glycyrrhizinate, 1-20 parts of an oil phase, 1-15 parts of a surfactant, 1-10 parts of a co-surfactant, 0.1-10 parts of a gel matrix material, 0.1-5 parts of a pH regulator, 0.1-1 part of a preservative and deionized water. The microemulsion gel provided by the invention is administered to skin, can increase a transdermal permeation rate, promotes transdermal absorption of multiple active ingredients, can achieve purposes of sustained release and long acting, has high product stability and good acne removing effect, and is simple in preparation process and suitable for industrial mass production.

The invention discloses oil-control spray for hair and skin. The oil-control spray comprises A, 1.1-9.0wt% of a high efficiency oil control complex comprising (i), 0.5-5.0wt% of modified cassava starch, (ii), 0.5-3.0wt% of porous oil suction particles and (iii), 0.1-1.0wt% of zinc pyrrolidone carboxylate, B, 0.1-2.0wt% of a suspension thickening agent, C, 0.5-2.0wt% of a cooling agent, D, 0-10wt% of denatured alcohol, and E, other cosmetic acceptable water-soluble carriers. The oil-control composition is used in a suspension-type spray product form and can instantly produce oil-control effects.

The present invention discloses a kind of tobacco humectant, which is water solution of pyrrolidone carboxylate. The tobacco humectant of water solution of pyrrolidone carboxylate has composition approaching that of natural human body moist keeping factor, no toxicity, no irritation and no sensitization property. Compared with propylene glycol, the tobacco humectant of the present invention has higher moist keeping performance and makes tobacco possess high smoking safety.

The invention discloses a low-water-absorbing cable material for a high-speed railway motor train unit and a preparation method of the Low-water-adsorbing cable material. The low-water-absorbing cable material for the high-speed railway motor train unit comprises the following raw materials in parts by weight: 81 to 92 parts of polypropylene, 43 to 55 parts of polybutylene terephthalate, 27 to 39 parts of poly (vinyl chloride co-isobutyl vinyl ether), 3 to 5 parts of vaseline, 22 to 26 parts of crystal silicon micro-powder, 4 to 6 parts of triethoxy-1H,1H,2H,2H-tridecafluoro-n-octylsilane, 1 to 2 parts of 4-hydroxybenzoic acid hydrazide, 3 to 4 parts of zinc pyrrolidone carboxylic acid, 2 to 3 parts of stannous octoate, 4 to 6 parts of glyceryl tristearate, 15 to 20 parts of calcined kaolin, 3 to 4 parts of lead maleate tribasic, 1 to 2 parts of alpha-phenylindole, 21 to 27 parts of a composite fire retardant, and 1.5 to 2.5 parts of an anti-oxidant 1520. The cable material produced by the preparation method provided by the invention is low in water absorption and superior in water resistance, further has excellent performance such as high intensity, excellent thermal stability, shock resistance, aging resistance, corrosion resistance, fatigue resistance, environment friendliness and flame retardance, and the like, and has a very wide application prospect.

An anticorrosive rubber for vehicles comprises natural rubber, tetra-fluoroethylene / propylene rubber, chlorosulfonated polyethylene rubber, aromatic oil, stearic acid, coupling agent, polyether-ether-ketone, carbon black, nano stannic oxide, calcined pottery clay, mica powder, dicumyl peroxide, triallyl isocyanurate, accelerant, lead stearate, zinc oxide, magnesium oxide, anti-aging agent, butadiene styrene rubber, fluorinated silicone rubber, ethylene propylene diene monomer, angelica dahurica extract and pyrrolidone potassium carboxylate. The obtained anticorrosive rubber has the advantages of low cost, short production cycle, high yield and long service life.

The invention relates to the field of cosmetics, in particular to a composition and an acne-removing cosmetic containing the same. The composition comprises glycolic acid, lactobacillus / pear juice fermented product filtrate, a xanthate bark extract, a white willow bark extract, a rehmannia chinensis root extract, an azadirachta indica leaf extract, a glycine ussuriensis extract, nicotinamide, octyl glycine, a radix sophorae root extract, a radix salvia miltiorrhizae extract, silanediol salicylate, zinc pyrrolidone carboxylate, quercetin, L-magnesium ascorbate phosphate, a centella extract andmenthoxypropanediol. The composition and the acne-removing cosmetic containing the same have the effects of inhibiting induction, inhibiting inflammation and promoting healing.

The invention provides body lotion. The body lotion is composed of the following components by weight: phase A: 6% of glycerinum, 3% of sodium pyrrolidonecarboxylate, 3% of propylene glycol, 3% of glycerinum polyether-26, 1% of glucan, 0.5% of 1,2-pentanediol, 0.05% of edetic acid disodium, 0.03% of citric acid; phase B: 6% of Vaseline, 1% of lauramidopropyl betaine, 1% of polydimethylsiloxane, 2% of dipropylene glycol, 1% of poly quaternary ammonium salt-7, 1%-2% of vitamin E acetate, 3-5% of shea butter; phase C: 5-10% of traditional Chinese medicine extract, 0.8-1.5% of Aloe vera leaf juice, 0.3% of sodium chloride; phase D: 0.1% of essence; and the balance of water. The traditional Chinese medicine extract is added to the body lotion. The traditional Chinese medicine prescription has the functions of clearing away heat and toxic materials, removing stasis and relieving pain, and treating the eczema, and is used for the body lotion, so that the body lotion is capable of moisturizing the skin and relieving the pruritus, and has the functions of external application of Chinese medicine, and the certain curative effect to the exzema.

The invention relates to a humectant as well as a preparation method and application thereof. The humectant consists of the following components in parts by mass: 68-72 parts of deionized water, 0.5-1.5 parts of sodium alginate, 0.5-1.5 parts of sodium hyaluronate, 8-12 parts of sodium lactate, 8-12 parts of sodium pyrrolidonecarboxylate, 3-7 parts of sorbitol and 1.5-4.5 parts of trehalose. The humectants disclosed by the invention can be used for forming a biomimic membrane similar to a human body membrane on the skin, is good in skin touch, and has humidity which is 5-10 times that of the conventional humectant.

The invention provides an environment-friendly pavement dust suppressant and a protection method thereof. The dust suppressant is prepared from the following raw materials in parts by mass: 4 to 18 parts of sorbitan monolaurate, 5 to 24 parts of sorbitan monostearate, 2 to 6 parts of sodium lactate, 3 to 5 parts of sodium pyrrolidone-carboxylate, 3 to 7 parts of glycerin, and 150 to 160 parts of water. By adopting the environment-friendly pavement dust suppressant, the dust particles which are easy to fly can be quickly conglomerated into large particles to sink, thus the flying of dust on a pavement can be effectively prevented, and the acting efficiency is high; the dust suppressing effect can last for more than 6 days; the dust suppressing rate is up to 95%.

The present invention provides a production method of pyrrolidone carboxylic acid or a salt thereof, which includes bringing glutamic acid or a salt thereof into contact with high-temperature high-pressure water having a temperature of above 100 DEG C. and not higher than 300 DEG C., and a pressure higher than the vapor pressure of water at this temperature. The present invention affords efficient production and supply of pyrrolidone carboxylic acid or a salt thereof from glutamic acid or a salt thereof.

The invention discloses flexible antibacterial medical non-woven fabric and a preparation method thereof. The flexible antibacterial medical non-woven fabric is prepared from, by weight, 48-65 parts of polypropylene fibers, 12-25 parts of tea fibers, 28-42 parts of polyvinyl alcohol fibers, 1-2 parts of sodium pyrrolidone carboxylate, 0.5-1 part of allantoin, 2-4 parts of fibrin glue and 1.5-3 parts of genipin. According to the flexible antibacterial medical non-woven fabric and the preparation method thereof, the prepared product has excellent flexibility, antibacterial performance and good comfort and is beneficial to wound healing and skin relieving of a patient.

The invention discloses a water-reducing agent containing peanut shell powder. The water-reducing agent containing peanut shell powder is prepared by mixing the following raw materials in parts by weight: 30-50 parts of aromatic sulfamate formaldehyde condensate, 15-25 parts of sodium methylene bis-naphthalene sulfonate, 5-10 parts of 2-ethylhexyl phosphate, 10-15 parts of abitol polyoxyethylene ether monosulfosuccinate, 8-12 parts of fluoroplast, 10-15 parts of polyethyleneimine, 3-5 parts of erucamide, 4-8 parts of 8-hydroxyquinoline potassium sulfate, 3-6 parts of peanut shell powder, 5-10 parts of sea mud, 10-15 parts of waste mortar, 5-10 parts of collagen freeze-dried powder, 8-12 parts of sodium pyrrolidonecarboxlate, 5-10 parts of polyamide-epichlorohydrin resin, and 4-8 parts of auxiliaries. The water-reducing agent is high in water reducing rate which is up to more than 20%, excellent is plasticity retention property, good in cement adaptability, convenient to use, free from influence on properties by being directly doped into concrete, capable of improving the mobility, anti-seepage property and durability of the concrete, and wide in the range of application.

The invention belongs to the technical field of skin care, and particularly relates to an emulsion capable of promoting skin regeneration and a preparation method thereof. The emulsion capable of promoting skin regeneration disclosed by the invention is prepared from the following components in parts by weight: 3 to 6 parts of sweet almond oil, 0.3 to 0.6 parts of idebenone, 1 to 2 parts of vitamin E, 2 to 3 parts of silk fibroin, 1 to 1.5 parts of skin regeneration promoter, 0.4 to 0.8 parts of percutaneous absorption promoter, 0.2 to 0.4 parts of rosmarinic acid, 0.7 to 1.2 parts of sodium carboxymethylcellulose, 3 to 5 parts of L-sodium pyrrolidonecarboxylate and 25 to 28 parts of deionized water. The preparation method for the emulsion capable of promoting skin regeneration disclosed by the invention includes: preparing the idebenone, the vitamin E and the like into an oil phase; preparing the silk fibroin, the rosmarinic acid and the like into a water phase; the oil phase is added into the water phase, homogeneous emulsification is carried out, and foam is removed. The emulsion capable of promoting skin regeneration disclosed by the invention does not irritate skin and cause skin allergy, is highly safe, and can realize the repair and regeneration of skin.

The invention relates to the field of pharmaceutical rubber, and discloses a method for preparing high-performance medical special rubber. A rubber material is placed in an ultraviolet irradiation reactor for surface activation, the activated rubber is pulverized and added to a surfactant solution to be heated and stirred to react, benzalkonium chloride, tributyltin fluoride, potassium pyrrolidone carboxylate and an antioxidant are added to be heated and stirred to react, and are filtered and dried to obtain a mixture, the mixture is added with graphene and a nano-inorganic fiber to be ultrasonically mixed, and then a plant source extract and lavender essential oil are added to be continuously subjected to ultrasonic reaction, and cooled to obtain the high-performance medical special rubber. The rubber material prepared by the invention has good bending strength and tensile strength, strong corrosion resistance and oxidation resistance, prolonged service life and strong antibacterial function, and infection prevention. The preparation method provided by the invention is simple and feasible, and is suitable for popularization and application in wide range.