6024 results about "W o emulsion" patented technology

The present invention is directed to various sets of unit operations for treating aqueous effluents and logic for designing and effecting the treatment. The unit operations include stabilization of subterranean waters, sequential oxidation steps to alter selected target materials, oxidation to break up emulsions prior to removal of the emulsion components, and intense oxidation to break up difficult-to-remove organic target materials.

It has been desired to develop a highly preservative and antibacterial cosmetic composition that can easily be applied to both emulsion and non-emulsion type cosmetics. It has also been desired to develop a method of improving a preservative and / or antibacterial effect(s) of a cosmetic composition comprising polyorganosiloxane-containing epsilon-polylysine and thereby reducing the amount of antibacterial preservative agent to be used. There is provided a cosmetic composition comprising one or a combination of two or more of polyorganosiloxane-containing epsilon-polylysine compounds obtained by reacting epsilon-polylysine with polyorganosiloxane or a physiologically acceptable salt thereof, and polyhydric alcohol.

System, including methods, apparatus, compositions, and kits, for the mixing of small volumes of fluid by coalescence of multiple emulsions.

The present invention provides an in vitro system for compartmentalization of molecular or cellular libraries and provides methods for selection and isolation of desired molecules or cells from the libraries. The library includes a plurality of distinct molecules or cells encapsulated within a water-in-oil-in-water emulsion. The emulsion includes a continuous external aqueous phase and a discontinuous dispersion of water-in-oil droplets. The internal aqueous phase of a plurality of such droplets comprises a specific molecule or cell that is within the plurality of distinct molecules or cells of the library.

A pharmaceutical composition contains cyclosporine as the active ingredient. More specifically, the composition is an orally administered pharmaceutical formulation in the form of a spontaneous emulsion comprising cyclosporine, ethanol ethyl oleate and polyoxyethylene glycerol trioleate. A method for preparing an orally administered pharmaceutical composition involves first dissolving cyclosporine in ethanol. Polyoxyethylene glycerol trioleate and an oil component are then added, mixed and diluted in an aqueous media to form a spontaneous emulsion.

System, including methods, apparatus, compositions, and kits, for making and using compound droplets of a multiple emulsion to supply an amplification reagent, such as a heat-stable DNA polymerase or DNA ligase, to an aqueous phase in which the compound droplets are disposed. The compound droplets may be induced to supply the amplification reagent by heating the multiple emulsion, to achieve hot-start amplification.

The present invention provides a foamable composition for administration to the skin, body surface, body cavity or mucosal surface, e.g., the mucosa of the nose, mouth, eye, ear, respiratory system, vagina or rectum. The foamable oil in water emulsion composition includes: an oil globule system, selected from the group consisting of oil bodies; and sub-micron oil globules, about 0.1% to about 5% by weight of an agent, selected from the group consisting of a surface-active agent, having an HLB value between 9 and 16; and a polymeric agent, and a liquefied or compressed gas propellant at a concentration of about 3% to about 25% by weight of the total composition, water and optional ingredients are added to complete the total mass to 100%. Upon release from an aerosol container, the foamable composition forms and expanded foam suitable for topical administration.

An emulsion is useful in allowing a wide variety of gene products to be expressed via eukaryotic in vitro expression. The emulsion comprises a silicone based surfactant, a hydrophobic phase and a hydrophilic phase; wherein the hydrophilic phase comprises a plurality of compartments containing a functional in vitro eukaryotic expression system.

System, including methods, apparatus, compositions, and kits, for making and using a stabilized emulsion. A method of generating a stabilized emulsion is provided. In the method, an aqueous phase may be provided. The aqueous phase may include an effective concentration of one or more skin-forming proteins. An emulsion may be formed. The emulsion may include droplets of a dispersed phase disposed in a continuous phase, with the aqueous phase being the continuous phase or the dispersed phase. The emulsion may be heated to create an interfacial skin between each droplet and the continuous phase, to transform the droplets into capsules.

The present invention relates to oil-in-water mascara compositions comprising water-insoluble polymeric materials in the form of an aqueous emulsion, water-soluble, film-forming polymers and organophilic clays. Said compositions exhibit improved wear and are removable with soap and water.

The invention discloses aqueous fire-proof corrosion-proof paint for a steel structure and a preparation method thereof, and belongs to the technical field of paint. The aqueous fire-proof corrosion-proof paint comprises, by mass, 20-45% of a composite emulsion, 12-25% of a charring catalyst, 6-12% of a foaming agent, 8-17% of a charring agent, 5-10% of a fire retardant, 1-5% of layered double hydroxide, 8-18% of an corrosion-proof filling material, 4-12% of a strengthening filling material, 1-5% of modified nano-powder, 0.5-6% of an assistant and 10-30% of water. Through use of the composite modified emulsion as a base material, coating flame resistance, corrosion resistance and decorativeness are obtained and coating defects caused by a single emulsion as a base material are overcome. Through use of a small amount of the nano-powder, the coating is compact because of filling effects of the nano-powder, the coating corrosion caused by O2, H2O and Cl <-> is avoided, good fire-proof and corrosion-proof effects are obtained under the condition of a small addition amount and a cost is reduced. The aqueous fire-proof corrosion-proof paint has the characteristics of green environmental protection and simple preparation processes.

A polypropylene type aqueous dispersion comprising the following components (a) to (c): (a) a polypropylene type polymer100parts by weightand / or a modified polypropylene typepolymer(b) a surfactant1 to 100parts by weight, and(c) water100 to 1,000parts by weight,wherein the component (a) has a main chain having the following features (1) and (2) and dispersion particles in the dispersion have an average particle size of at most 0.5 μm, Feature (1) when observing a peak derived from a carbon atom of a methyl group in a propylene unit chain part comprising a head-to-tail bond by 13C-NMR and fixing a chemical shift of a peak top at a peak attributable to pentad expressed by mmmm to 21.8 ppm, a ratio (S1 / S) of an area S1 of a peak of a peak top at 21.8 ppm to a total area S of peaks at from 19.8 ppm to 22.1 ppm is at least 10% and at most 60%, and when an area of a peak (mmmr) of a peak top at 21.5 to 21.6 ppm is expressed as S2, 4+2S1 / S2>5, and Feature (2) a content ratio (mol ratio) of propylene unit (A): other olefin unit (B) is from 100:0 to 90:10.

A one-step process using electron beam radiation to polymerize pressure sensitive adhesives on web from acrylate emulsions is disclosed. The radiation may be supplied in a single or multiple dose. Products using such pressure sensitive adhesives are also disclosed.

The present invention provides a process for preparing carbon quantum dots having uniform size by using emulsion, and a process for doping the inside of the carbon structure with other element or replacing the surface with a surface stabilizer having a specific chemical functional group different from existing stabilizers in order to control the properties of the carbon quantum dots. The process for preparing the carbon quantum dots according to the present invention makes a mass production possible and the process thereof is simple. Furthermore, the process is easy to control the size of the quantum dots and the reaction yield rate of the method is excellent. In addition, according to the present invention, it is possible to synthesize carbon quantum dots having uniform size and superior quantum yield rate and it makes it possible to embody the color as equivalent to existing molecular chromophores or heavy metal quantum dots by changing the structure of the chromophore.

A direct emulsion for bleaching keratin fibers, preferably human keratin fibers such as hair, having an inert phase containing of a nonoxygenated and nonperfluorinated liquid compound having a water-solubility at 25° C. of less than 1% and an aqueous hydrogen peroxide solution, a bleaching method using this direct emulsion, as it is or in the form of a ready-to-use composition, and the use of this direct emulsion for bleaching keratin fibers. The direct emulsion in accordance with the invention makes it possible to rapidly obtain substantial lightening of keratin fibers while limiting the degradation of the keratin fibers and skin irritation.

The present invention relates to an oil-in-water emulsion topical delivery system comprising an oil phase; an aqueous phase; phenoxyethanol; an effective exfoliatingamount of a hydrophobic hydroxycarboxylic acid; a non-ionic emulsifier having an HLB of from about 7 to about 10; and at least one skin-supporting ordermatopharmaceutically active agent.

This invention is of a drilling fluid composition containing a liquid thixotrope, which thixotrope is free of solvents or any other diluent, and is in easily usable, liquid form, pourable at ambient temperatures, and which provides effective and efficient rheological properties when used at low levels in such compositions. In a specific aspect, the invention provides an oil or oil invert emulsion drilling fluid composition containing one or more organoclays, and in addition contains a additive which comprises the reaction product of an alkoxylated nitrogen containing compound or a diamine, and one or more polycarboxylic acids in a specified equivalent ratio.

The present invention is directed to seamless capsules and methods for making seamless capsules having a high oil content. More specifically, the present invention is directed to seamless capsules, and methods for making seamless capsules, made from a process involving the steps of: (a) preparing an emulsion comprising oil, water, an emulsifier, and at least one of a water-soluble monovalent metal salt, polyvalent metal salt, and an acid, wherein said oil is present in an amount of at least 50% by weight of said emulsion; with the proviso that said emulsion does not contain marmelo mucilage; and (b) adding portions of said emulsion to an aqueous gelling bath comprised of at least one ionic polysaccharide, thereby encapsulating said portions of said emulsion in a polysaccharide gel membrane, and optionally (c) drying the resulting capsules by removing water. The capsule is, for example, an alignate gel. The capsules of the invention are suitable for a variety of applications, e.g. pharmaceutical, nutraceutical, veterinay, agricultural, cosmetic, or food applications.

Cosmetic emulsion for care and / or makeup, comprising an aqueous phase and a liquid fatty phase dispersed one within the other, said liquid fatty phase comprising at least one silicone oil and being structured with at least one gelling polymer (homopolymer or copolymer) with a weight-average molecular mass ranging from 500 to 500,000, containing at least one moiety comprising: at least one polyorganosiloxane group, composed of 1 to 1000 organosiloxane units in the chain of the moiety or in the form of a graft, and at least two groups capable of establishing hydrogen interactions chosen from among the ester, amide, sulfonamide, carbamate, thiocarbamate, urea, thiourea, oxamido, guanidino, biguanidino groups, and combinations thereof, on condition that at least one of the groups is other than an ester group, the polymer being solid at room temperature and soluble in the liquid fatty phase at a temperature of 25 to 250° C., the aqueous phase, the liquid fatty phase and the gelling polymer forming a physiologically acceptable medium.

This invention generally relates to cationic oil-in-water emulsions that can be used to deliver negatively charged molecules, such as an RNA molecule. The emulsion particles comprise an oil core and a cationic lipid. The cationic lipid can interact with the negatively charged molecule thereby anchoring the molecule to the emulsion particles. The cationic emulsions described herein are particularly suitable for delivering nucleic acid molecules (such as an RNA molecule encoding an antigen) to cells and formulating nucleic acid-based vaccines.

Abstract Compositions comprising an emulsion and aluminum salt nano- / micro-particles surface stabilized with at least one surfactant are useful as immunological adjuvants. The emulsion of these compositions comprises at least one oil; at least one surfactant; a plurality of surfactant vesicles; optionally at least one sterol; and an aqueous phase. The present invention also provides vaccines comprising one or more antigens combined with the emulsion and surface stabilized aluminum salt particles of the present invention, or one or more antigens combined with non-ionic surfactant vesicles.

Gelled emulsions contain (i.) an external phase of an aqueous water-soluble solvent solution, polymeric viscosifying agent and, optionally, an oxidative and / or acidic breaker; and (ii.) an internal phase of a dispersed organic fluid. The aqueous water-soluble solvent solution constitutes between from about 15 to about 50 volume percent of the gelled emulsion and the dispersed organic fluid is presented in the gelled emulsion in amounts ranging from about 50 to about 85 volume percent. The gelled emulsions are useful in a variety of applications including, but not limited to, oil field, pipeline and processing facility applications.

A method for enhancing the stability of a water-in-oil emulsion pretreating at least a portion of the oil prior to emulsification. The pretreatment step may consist of adding polymers to the oil, biotreating the oil, photochemically treating the oil, or combinations thereof. The emulsion may be used in various enhanced oil recovery methods including using the emulsion as a flooding agent to displace hydrocarbons in a subterranean formation, and using the emulsion as a barrier fluid for diverting flow of fluids in the formation.

The present invention provides a process and apparatus for rapidly producing an emulsion and microcapsules in a simple manner. A dispersion phase is ejected from a dispersion phase-feeding port toward a continuous phase flowing in a microchannel in such a manner that flows of the dispersion phase and the continuous phase cross each other, thereby obtaining microdroplets, formed by the shear force of the continuous phase, having a size smaller than the width of the channel for feeding the dispersion phase.

These objects and others may be accomplished with the present invention, the first embodiment of which provides an oil-in-water nanoemulsion, which includes:an oily phase dispersed in an aqueous phase;(i) at least one amphiphilic lipid selected from the group including nonionic amphiphilic lipids, anionic amphiphilic lipids, and combinations thereof; and(ii) at least one water-soluble nonionic polymer selected from the group including homopolymers and copolymers of ethylene oxide; polyvinyl alcohols; homopolymers and copolymers of vinylpyrrolidone; homopolymers and copolymers of vinylcaprolactam; homopolymers and copolymers of polyvinyl methyl ether; neutral acrylic homopolymers and copolymers; C1–C2 alkyl celluloses and their derivatives; C1–C3 alkyl guar; C1–C3 hydroxyalkyl guar; and combinations thereof;wherein a ratio of the weight of the oily phase to the weight of the amphiphilic lipid (i) ranges from 1.2 to 10;and wherein the oily phase includes oil globules having a number-average size of less than 100 nm. The nanoemulsion obtained is preferably transparent and stable on storage. It may form a composition for topical, preferably cosmetic or dermatological compositions, pharmaceutical compositions and ophthalmological compositions.

The present invention relates to a water-in-oil-in-water multiple emulsion system and a method for preparation thereof, characterized by hydrodynamically stabilizing the multiple emulsion system by using hydrodynamic dual stabilization (HDS) technology. The HDS technology hydrophobizes water molecules in the internal aqueous phase by using a hydrogen bonding inhibitor and by improving the aggregating force between water molecules in the internal aqueous phase by using a water molecule aggregating agent.

The invention pertains to the use of a class of acetylenic surfactants to resolve or break water and oil emulsions. The surfactants are of particular advantage in resolving crude oil emulsions of the type encountered in desalter and similar apparatus designed to extract brines from the crude as they partition to the aqueous phase in the desalter. Also, the surfactants may be used to separate oil from oil sands and similar oil / solids matrices.