64 results about "Surfactant free" patented technology

The invention discloses a preparation method and application of a platinum-copper cross-linked nanowire, and the method comprises the following steps: preparing a platinum precursor solution and a copper precursor solution, injecting into an aqueous solution, and uniformly mixing; taking a freshly prepared sodium borohydride aqueous solution as a reducing agent and a hydrogen source, quickly injecting into the mixed solution, reacting in a low-temperature water bath for several hours, collecting black precipitates at the bottom of a reaction container, and centrifugally washing with a water-alcohol mixture to obtain the platinum-copper cross-linked nanowire. The scheme is carried out in an aqueous solution without a surfactant, the surface of the prepared nanowire is clean, the post-treatment is simple, and the diameter of the prepared platinum-copper cross-linked nanowire can be 4-5nm; the platinum-copper cross-linked nanowire can be applied to electro-catalysis methanol oxidation reaction, and has high activity, good carbon monoxide poisoning resistance and good stability.

The invention discloses a solid dispersion of beta-1, 3 / alpha-1, 3-glucan as well as a preparation method and application thereof, and belongs to the technical field of biology. The solid dispersion of beta-1, 3 / alpha-1, 3-glucan provided by the invention comprises beta-1, 3 / alpha-1, 3-glucan and polysaccharide, wherein the beta-1, 3 / alpha-1, 3-glucan and the polysaccharide are compounded to form the solid dispersion; the mass ratio of the beta-1, 3 / alpha-1, 3-glucan to the polysaccharide is 3: (1.5-3); the polysaccharide comprises one or more of curdlan, carrageenan and microcrystalline cellulose; the solid dispersion of beta-1, 3 / alpha-1, 3-glucan has lower viscosity and higher solubility in application, and the stability of a beverage can be effectively improved; and the preparation method is simple and easy to implement and suitable for industrial mass production, and the obtained solid dispersion does not contain a surfactant, is safer and has smaller irritation.

The invention discloses a solid dispersion of beta-1, 3 / alpha-1, 3-glucan as well as a preparation method and application thereof, and belongs to the technical field of biology. The solid dispersion of beta-1, 3 / alpha-1, 3-glucan provided by the invention comprises beta-1, 3 / alpha-1, 3-glucan and phosphate, wherein the beta-1, 3 / alpha-1, 3-glucan and the phosphate are compounded to form the solid dispersion; the mass ratio of the beta-1, 3 / alpha-1, 3-glucan to the phosphate is 3: (2-5); the solid dispersion of beta-1, 3 / alpha-1, 3-glucan has lower viscosity and higher solubility in application, and the stability of a beverage can be effectively improved; and the preparation method is simple and easy to implement and suitable for industrial mass production, and the obtained solid dispersion does not contain a surfactant, is safer and has smaller irritation.

A cosmetic cleansing composition includes a monophasic micellar water that includes at least one amphoteric surfactant present from greater than about 0.05%, by weight, at least one cationic polymer comprising chitosan, polylysine, guar hydroxypropyltrimonium chloride, or combinations thereof present from greater than about 0.01%, by weight, based on the weight of the composition and an aqueous carrier that includes at least water. The cosmetic cleansing composition has a pH in a range from about 4 to about 8, and may be essentially free or free of PEG / POE surfactants. When applied to remove makeup on keratinous tissue the cosmetic cleansing composition demonstrates effective cleansing of longwear foundation and lipstick.

The present invention relates to a cosmetic composition comprising, in a physiologically acceptable medium, 25% to 40% by weight of urea and / or urea derivatives relative to the total weight of the composition; at least one saccharide-free non-emulsifying hydrophilic gelling polymer; at least one scleroglucan gum; the composition containing less than 2% by weight of surfactant relative to the total weight of the composition, preferably less than 1%, even more preferably less than 0.5% or no surfactant at all. It also relates to the use of a cosmetic composition of this kind for skin care, in particular for the skin of the face or body, as well as to a cosmetic skin care method, in particular for the skin of the face or body, involving the application of a cosmetic composition of this kind.

A novel surfactant composition that comprises of two surfactant components, a solvent, and water. The surfactant composition is added to a fracturing fluid, which is then pumped downhole into a subterranean formation where the novel characteristics of the fracturing fluid lend to improved oil production over the fracturing fluid without the surfactant composition.

The application relates to a preparation method and application of a supported platinum-rhodium-copper core-shell nanometer alloy electrocatalyst. The preparation method comprises the following steps: mixing raw materials containing a platinum source, a copper source and a rhodium source, a surfactant and an oleylamine solvent to obtain a mixed solution; the mixed solution is heated to 160-280 DEG C and reacts for 0.5-8 h, and then is cooled; the cooled reaction solution is washed with acetic acid and centrifuged at a speed of not less than 8000 r / min; a product, namely platinum-rhodium-copper alloy nanoparticles, which does not contain the surfactant on the surface, is obtained; the amount of the acetic acid is not less than the volume of the reaction solution; the obtained product and the platinum source are put into the oleylamine solvent, mixed, heated, reacted, cooled and centrifuged to obtain PtRhCu@Pt nanoparticles; the PtRhCu@Pt nanoparticles are mixed with a carbon carrier to obtain a PtRhCu@Pt catalyst. The catalyst prepared by the preparation method has high coating degree of the platinum shell layer on the surface and uniform particle size.

The invention relates to the technical field of skin care compositions, in particular to a ginsenoside composition gel soap liquid capable of doubly residing on skin. The composition does not contain a surfactant and a foaming agent, takes a panaxoside composition in a specific proportion as a core active component, and cooperates with a licorice extract, hyaluronic acid, a rapeseed extract, a bearberry leaf extract and a willow bark extract to form a stable gel system. The composition replaces traditional surfactants and foaming agents, solves the problems that traditional components damage skin barriers and cannot stay for a long time, has dual functions of deep cleaning and skin care, and has two characteristics of cleaning type non-staying products and cream type staying products at the same time. Experiments prove that the composition has excellent effects of resisting oxidation, whitening, deodorizing and removing cutin scales, is high in safety, does not contain harmful ingredients such as hormones and antibiotics, and can stay on the skin for a long time to play a continuous role.

The present disclosure relates to ready-to-use, surfactant free, oral, aqueous suspension formulations comprising one or more immunosuppressive agents. The ready-to-use suspension formulations of the present disclosure can be useful in treating organ or stem cell transplant recipients or T-cell mediated diseases.

The present invention is an emulsified composition, including: (A): a titanium-atom-containing silicone resin; (B): one or more oil agents selected from the group consisting of a hydrocarbon oil, an ester oil, and a silicone oil, the oil agent being able to dissolve the component (A) and being liquid at 25° C.; and (C): water, where the emulsified composition contains no surfactant. Accordingly, an object of the present invention is to provide: an emulsified composition having excellent stability and usability without a surfactant; and a cosmetic material including the above emulsified composition and having excellent feeling of use.

The present invention relates to a cosmetic composition comprising, in a physiologically acceptable medium, 25% to 40% by weight of urea and / or urea derivatives relative to the total weight of the composition; at least one saccharide-free non-emulsifying hydrophilic gelling polymer; at least one scleroglucan gum; the composition containing less than 2% by weight of surfactant relative to the total weight of the composition, preferably less than 1%, even more preferably less than 0.5% or no surfactant at all. It also relates to the use of a cosmetic composition of this kind for skin care, in particular for the skin of the face or body, as well as to a cosmetic skin care method, in particular for the skin of the face or body, involving the application of a cosmetic composition of this kind.

The invention relates to a gastroprotected, hydrophobic formulation of at least one active principle, characterised in that it is presented in the form of solid particles having a size of 5 μm to 3500 μm, the solid particles of the formulation comprising: - at least one waxy carrier forming a waxy matrix, and; - said at least one active principle chosen from the group made up of active principles for agri-food use, active principles for veterinary use, active principles for probiotic use, and active principles for pharmaceutical use; the solid particles being strictly hydrophobic, non-hygroscopic, non-injectable, free of water, free of surfactants, free of emulsifying agents, free of solvent, and free of shear-thinning polymer; the solid particles having a melting point of between 15°C and 60°C; said at least one active principle being uniformly distributed in the waxy matrix with a weight ratio of between 0.2% and 85%; said solid particles being suitable for protecting and stabilising said at least one active principle in the gastric medium and being dispersible in the intestinal medium.

To provide a system and method for applying a polymer surface treatment to carpets and other textiles.SOLUTION: A system and method include the use of a surfactant-free emulsion of a surface treatment polymer. The use of the surfactant-free emulsion of the surface treatment polymer reduces or eliminates the need to use pH adjusting agents and / or ionic salt solutions when applying surface treatment polymers to carpets or other textiles. By reducing the need to remove surfactants, emulsifiers, pH adjusting agents, and / or salts, the total volume of water used in treating carpets or other textiles is reduced.SELECTED DRAWING: Figure 1

The invention relates to a process for producing a stable emulsion not comprising a surfactant.

Compositions, products, systems, kits, and methods of perming hair may include a first-product (perming lotion) that contains cysteamine and cysteine, such that the first-product is used to break preexisting disulfide bonds in hair, and then a second-product may be applied directly over (on top of) the first-product to neutralize the effects of the first-product without first rinsing the hair to remove the first-product, so that disulfide bonds in the hair may form to set the treated hair into a desired shape with desired curls, waves, texture, and / or style. Various on-the-rod, off-the-rod, and / or perm tools may be used to maintain the hair in the desired shape until the first-product and the second-product have finished acting on the hair and / or on each other. The Compositions, products, systems, kits, and methods of perming hair are vegan, cruelty free, paraben free, sulfate surfactant free, use minimal water, and are without thioglycolic acid.

The invention relates to a laundry sheet without an SLS surfactant and a preparation method of the laundry sheet. The invention relates to a laundry sheet without an SLS surfactant. The laundry sheet comprises a film-forming agent, an anionic surfactant, a nonionic surfactant, a chelating agent, an enzyme preparation, an auxiliary agent and essence, the film-forming agent comprises one or more of polyvinyl alcohol, cellulose and dodecenyl succinic anhydride modified starch; the anionic surfactant comprises at least two of sodium alpha-olefin sulfonate, sodium fatty acid methyl ester sulfonate and sodium isethionate; the nonionic surfactant comprises at least two of fatty alcohol-polyoxyethylene ether, a fatty acid methyl ester ethyoxyl compound, a grease ethyoxyl compound and the like. According to the preparation method, SLS is omitted, irritation to skin is reduced, the influence of the omitted SLS on preparation of the laundry sheet is made up through specific selection, and the laundry sheet which is good in decontamination effect, high in dissolution speed, good in moisture resistance and dry resistance and high in stability is obtained.

Disclosed is a sulfate-based surfactant free oral care composition with improved low temperature stability including sodium methyl cocoyl taurate, sorbitol and purified water, and more particularly, an oral care composition with improved formulation stability by adjusting a weight mixing ratio of sorbitol and purified water as a solvent to 1:0.9 to 1:1.72. According to the present invention, it is possible to provide a sulfate based surfactant-free oral care composition including a mild cleansing ingredient having a sulfate-free formulation by using sodium methyl cocoyl taurate as a surfactant. Further, it is possible to improve low temperature stability below approximately 5° C. by adjusting a weight mixing ratio of sorbitol and purified water as a solvent.

A method and a system for in-situ remediation of recalcitrant organic and inorganic contaminants in an environmental medium are disclosed. Dissolved gases from water and an oil are removed to form degassed water and a degassed oil. The degassed water and the degassed oil are mixed to form a surfactant-free oil-in water emulsion. The surfactant-free oil-in-water emulsion is injected into the environmental medium, thereby producing anaerobic conditions to cause indigenous anerobic bacteria to biodegrade residual concentrations of the contaminants in the environmental medium.

To provide a liquid detergent composition for a fiber product which includes an aminocarboxylic acid chelator and is free of, or includes only a small amount of, a surfactant, and which can achieve both good washing performance and storage stability.SOLUTION: A liquid detergent composition for a fiber product includes 5 to 50 mass% of (A) a salt of an aminocarboxylic acid chelator and 0.2 to 5 mass% of (B) an acid, and is free of, or includes 3 mass% or less of, (C) a surfactant. The ratio (Z), which is calculated by the expression (Z)={(valence of component (B)×molar concentration of component (B)) / molar concentration of component (A)}, is 0.5 to 0.8.SELECTED DRAWING: None

An osmotic pump tablet, its preparation method and use. The osmotic pump tablet comprises a tablet core and a coating film wrapping the tablet core, the coating film has a drug release hole, the tablet core comprises a drug-containing layer, the drug-containing layer comprises a drug active ingredient, a hydrophilic polymer and a surfactant, the hydrophilic polymer comprises hydroxypropyl cellulose and the surfactant comprises poloxamer; or the drug-containing layer comprises a drug active ingredient and a hydrophilic polymer but does not contain a surfactant; the hydrophilic polymer comprises povidone K29 / 32; or the osmotic pump tablet comprises a drug-containing immediate-release outer coating, the drug-containing immediate-release outer coating comprises a drug active ingredient and a pharmaceutical excipient, and the pharmaceutical excipient is a binder.

The invention relates to an osmotic pump tablet as well as a preparation method and application thereof. The osmotic pump tablet comprises a tablet core and a coating film wrapping the tablet core, the coating film is provided with drug release holes, the tablet core comprises a drug-containing layer, the drug-containing layer comprises active pharmaceutical ingredients, a hydrophilic polymer and a surfactant, the hydrophilic polymer comprises hydroxypropyl cellulose, and the surfactant comprises poloxamer; or the drug-containing layer comprises a drug active ingredient and a hydrophilic polymer, but does not contain a surfactant; the hydrophilic polymer is prepared from povidone K29 / 32; or the osmotic pump tablet contains the drug-containing quick-release outer coating, the drug-containing quick-release outer coating contains the active pharmaceutical ingredient and the pharmaceutic adjuvant, and the pharmaceutic adjuvant is an adhesive. The invention further provides a preparation method and application of the compound. The osmotic pump tablet disclosed by the invention is high in drug loading capacity and can well play a treatment effect.

The invention relates to a SnO2 material with high response to ethanol gas as well as a preparation method and application of the SnO2 material. The SnO2 material is spherical SnO2 particles with the average size of 0.1-0.3 mu m and uniform size. The SnO2 material provided by the invention has excellent sensitivity and selectivity to ethanol, can be prepared by a simple hydrothermal method without a surfactant, and provides a way with a wide prospect for developing a high-performance gas sensor.

The invention relates to a method for preparing a PtPd nanosheet through a gas-solid phase reaction. The growth speed of crystal faces is changed by utilizing selective adsorption of reducing mixed gases H2, CO and NH3 on Pt and Pd crystal faces, so that the morphology of nanoparticles is regulated and controlled, and the PtPd nanosheet without a surfactant is synthesized. According to the method, no surfactant or end-capping reagent is needed in the synthesis process, the PtPd nanosheet can be obtained through simple gas-solid phase reduction, large-scale production of the catalyst can be achieved, and the prepared catalyst is used for efficiently catalyzing the acid oxygen reduction reaction.

The present disclosures are directed to personal care compositions comprising crosslinked silicone elastomer; personal care compositions comprising a crosslinked silicone elastomer powder that is free of surfactant; and personal care compositions that are free of a polyether compound. The present disclosures are further directed to personal care compositions comprising one or more of oils, an aqueous phase, sunscreens, film formers, waxes, emulsifiers, particulates, pigments, dyes, and preservatives.

The present disclosure relates to: a personal care composition comprising a cross-linked silicone elastomer; a personal care composition comprising a cross-linked silicone elastomer powder that is free of a surfactant; and a personal care composition free of polyether compounds. The present disclosure further relates to personal care compositions comprising one or more of an oil, an aqueous phase, an opacifier, a film former, a wax, an emulsifier, microparticles, a pigment, a dye, and a preservative.

The invention relates to a preparation method of a thermoplastic resin-based carbon fiber prepreg tape. The method comprises the following steps: performing electrochemical oxidation treatment on a carbon fiber tow, and introducing a polar functional group on the surface of the carbon fiber tow; drying and spreading the obtained carbon fiber tows, impregnating the carbon fiber tows in a thermoplastic resin dispersion liquid, and then drying and molding to obtain a thermoplastic resin-based carbon fiber prepreg tape; wherein the thermoplastic resin dispersion liquid is a thermoplastic resin solution containing aluminosilicate, nanocellulose and sodium carboxymethyl cellulose, and the dispersion liquid does not contain a surfactant and a defoaming agent; the dosage of the aluminosilicate is 2.7 w / w%-3.6 w / w% of the mass of the thermoplastic resin, the dosage of the nanocellulose is 0.7 w / w%-1.2 w / w% of the mass of the dispersion liquid, and the dosage of the sodium carboxymethyl cellulose is 1.1 w / w%-1.5 w / w% of the mass of the dispersion liquid.

The invention provides a method for separating plant tissue cell nucleuses, which comprises the following steps: carrying out homogenate standing on plant tissue coarse powder obtained by freezing and grinding liquid nitrogen and a separating medium A, filtering to obtain a first filtrate, centrifuging the first filtrate, collecting precipitate, carrying out resuspension centrifugation by using a separating medium B, collecting precipitate, and carrying out resuspension filtration by using a separating medium C to obtain a second filtrate, sequentially adding a separation liquid D and a separation liquid E into the second filtrate to form a density gradient system, centrifuging, collecting an interface layer solution containing cell nucleuses, and washing the interface layer solution containing the cell nucleuses with a separation liquid C to obtain purified cell nucleuses; wherein the separation liquid A does not contain a surfactant, the separation liquid B contains a nonionic surfactant, and the separation liquid C does not contain a surfactant.

The present application is an emulsified composition containing (A) a silicon resin containing a titanium atom, (B) an oil agent that is liquid at 25°C and is soluble in the component (A), selected from one or more of the group consisting of a hydrocarbon oil, an ester oil, and a silicone oil, (C) water, and does not contain a surfactant. Thus, the present application aims to provide an emulsified composition that does not use a surfactant and is excellent in stability and usability, and to provide a cosmetic containing the above emulsified composition that is excellent in use feeling.

The present application relates to a laundry sheet free of an SLS surfactant, and a preparation method therefor. The laundry sheet free of an SLS surfactant comprises a film-forming agent, an anionic surfactant, a nonionic surfactant, a chelating agent, an enzyme preparation, an auxiliary agent and an essence, wherein the film-forming agent comprises polyvinyl alcohol and one or more of cellulose and starch sodium dodecenyl succinate; the anionic surfactant comprises at least two of sodium α-olefin sulfonate, sodium fatty acid methyl ester sulfonate and sodium isethionate; and the nonionic surfactant comprises at least two of fatty alcohol polyoxyethylene ether, a fatty acid methyl ester ethoxylate, an oil ethoxylate, etc. In the present application, SLS is omitted, thereby reducing irritation to the skin; moreover, specific choices are made to compensate for the influence of the omission of SLS on the preparation of a laundry sheet, thereby obtaining a laundry sheet having a good decontamination effect, a fast dissolution speed, good moisture resistance and dryness resistance, and high stability.