1343 results about "Oil emulsion" patented technology

This invention relates to in-situ preparation of the derivatives of various hydroxy acids (HA), such as alpha-(Alpha) Hydroxy Acids (AHA), beta-(Beta) Hydroxy Acids (BHA), and Poly-Hydroxy Acids (PHA) with certain skin beneficial organic hetero-atom bases and their application in skin resurfacing (exfoliation), and in the synergistic treatment and regulation of topical disorders of skin such as skin aging, wrinkles, acne, rosacea, age-spots, canker sores, striae distensae (stretch marks), pimples, skin redness, and dry skin conditions of cracking, flaking, and scaling. Most HA derivatives produced by the in-situ method do not cause skin irritation and skin redness effects that are commonly experienced with AHA and BHA, yet there is no loss of their skin beneficial effects. These compositions can be traditional water and oil emulsions, liposomes, suspensions, colloids, solutions, masks, muds, serums, sprays, gels, lotions, creams, cleansers, and anhydrous systems, thus offering a wide choice of formulations to meet their consumer appeal and acceptance requirements.

The present invention provides injectable oil-in-water emulsions of taxoid drugs or other water insoluble drugs. The present invention also provides methods for preparing and using such oil-in-water emulsions.

A composite magnetic nanoparticle drug delivery system provides targeted controlled release chemotherapies for cancerous tumors and inflammatory diseases. The magnetic nanoparticle includes a biocompatible and biodegradable polymer, a magnetic nanoparticle, the biological targeting agent human serum albumin, and a therapeutic pharmaceutical composition. The composite nanoparticles are prepared by oil-in-oil emulsion/solvent evaporation and high shear mixing. An externally applied magnetic field draws the magnetic nanoparticles to affected areas. The biological targeting agent draws the nanoparticles into the affected tissues. Polymer degradation provides controlled time release delivery of the pharmaceutical agent.

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.

The invention relates to a process for the preparation of hormone-containing oil emulsions (lipid emulsions), an isotonic oil emulsion obtainable by such process, and the use of the emulsion according to the invention for the preparation of a medicament for intravenous administration, especially for postnatal hormone substitution in premature babies and for the treatment of neurological damage after strokes.

A thickened oil emulsifying viscosity reducer consists of anion surface activator, non-ionic-anion surface activator, demulsifier and water in proportion by 1:0.1-50:0.01-20 and water content is 0.2-5000 times of the sum of a, b and c. Anion surface activator comprises sodium salt and calcium salt of petroleum sulfoacid salt methyl condensate and sulfonated lignin; non-ionic-anion surface activator is chosen organic phosphate salt, sulfuric ester salt , carboxylate and sulfosalt of alkylphenol or fatty alcohol-polyoxyethylene ether; demulsifier is copolymer of alkyl ammonium halide cation demulsifier, polyethylene glycol polyoxytrimethylene polylol ether non-ionic demulsifier or polyethylene glycol polyoxytrimethylene polyethylene polyamines block. It has strong emulsifying ability and low thickened oil viscosity,

A process using supercritical water-oil emulsion to upgrade a heavy hydrocarbon feedstock into an upgraded hydrocarbon product or syncrude with highly desirable properties (low sulfur content, low metals content, lower density (higher API), lower viscosity, lower residuum content, etc.) is disclosed. The process does not require external supply of hydrogen nor does it use externally supplied catalysts.

Disclosed herein is an acid-in-oil emulsion composition comprising an emulsifying agent; a dispersion agent; a base oil; and an acid, wherein the acid-in-oil emulsion composition is substantially devoid of priority pollutants. Disclosed herein too is a method for treating a hydrocarbon-bearing formation comprising blending an emulsifying agent, a base oil and an acid to produce an acid-in-oil emulsion, the acid-in-oil emulsion being substantially devoid of priority pollutants; and discharging the acid-in-oil emulsion into a downhole hydrocarbon-bearing well formation, where the acid-in-oil emulsion is operative to stimulate hydrocarbon production.

The invention relates to an oil-in-water emulsion, substantially comprising protein, polysaccharide and oil or fat having unique stabilizing properties, which is suited for use as a thickener, suspending agent, coating material and as an additive to food in the production of a plurality of products. Furthermore, foods are provided which have improved properties in terms of sensory aspects and nutrition physiology compared to conventionally produced products, and a method for the production thereof is provided. In addition, the emulsion and products produced according to the invention can be dried and subsequently rehydrated in order to obtain compositions that have substantially the same properties as the non-dried compositions.

The present invention relates to stable cold-mix water-in-oil emulsions and methods for preparing such emulsions. The cold-mix water-in-oil emulsions comprise oil (i.e., an emollient), water and an emulsification system comprising a quaternary ammonium-based low HLB emulsifier and optional co-emulsifiers. The emulsions are useful in preparing finished cosmetic compositions in the form of lotions, gels, or sprays, which provide improved moisturization, skin feel, skin care, and/or appearance benefits and/or reduced greasiness, with excellent rub-in and absorption characteristics. Also disclosed are cold-mix water-in-oil sunscreen emulsions and methods for preparing such sunscreen emulsions. The emulsions of the instant invention are generally capable of being substantially completely emulsified and stable at about 25° C.

The invention provides a cosmetic or pharmaceutical composition in the form of an oil-in-glycerin emulsion, with mean droplet size below one micron, comprising a continuous glycerin phase, at least one vegetable oil comprising an internal phase, at least one emulsifying stabilizer, and at least one bioactive compount comprising at least one hydrophobic, moiety within its structure, wherein the composition facilitates stratum-corneum penetration and dermal penetration of said bioactive compound.

The invention is a low viscosity oil-in-water emulsion that is readily atomizable for use in cosmetic and dermatological applications and particularly for spray or aerosol applications. The oil-in-water emulsion includes at least one phospholipid and at least one oil-in water emulsifier. In some embodiments, the emulsion may also include a water-in-oil emulsifier. The invention also includes a process for preparing the emulsion.

A composition, in the form of a water-in-oil emulsion, is characterized in that it contains at least one amphiphilic polymer or copolymer of 2-acrylamido-2-methylpropanesulphonic acid bearing hydrophobic grafts chosen from hydrocarbon-based radicals containing from 6 to 30 carbon atoms, oxyalkylenated hydrocarbon-based radicals comprising a hydrocarbon-based group containing from 6 to 30 carbon atoms and at least one oxyalkylene unit, and mixtures thereof.

The re-compounded pesticide composition includes fipronil in the weight ratio to other component of 0.02-50, and at least one of the following pesticides: lambda-cyhalothrin, fenpropathrin, cycloprothrin, esfenvalerate, etofenprox, etc. It may have functional assistant, diluent or carrier added to compound into oil emulsion, soluble liquid, super low capacity sprayed agent, water emulsion, microemulsion or other preparation forms. It has wide pesticidal spectrum, high activity, low cost, less resistance and other features, and may be applied in preventing and controlling pests of rice, vegetable, cotton, corn, fruit tree, tobacco and other crops.

A method for smoothing skin comprising applying a composition that has from about 0.5 to about 4% sodium silicate as measured by silica content (SiO₂) and from about 0.1% to about 4.0% of a polyvalent silicate. The composition is provided in a carrier, for example, from about 10 to 98% water, and can be in the form of a water gel or oil-in-water emulsion. A second composition is applied before or after the first composition wherein the second composition is selected from the group consisting of an oil-in-water emulsion, water-in-oil emulsion, thickened water gel, thickened oil phase, encapsulated oil phase, solid oil phase, and mixtures thereof. The polyvalent silicate can be a silicate clay selected from the group consisting of bentonite, laponite, smectite, and kaolinite.

The re-compounded germicide composition includes kresoxim-methyl and at least one kind of triazole germicide compound in the weight ratio of 0.025-40. The re-compounded germicide composition includes also functional assistant and diluent, and kresoxim-methyl and triazole germicide compound account for 1-95 wt% of the germicide composition. It may be compounded into oil emulsion, soluble liquid preparation, micro emulsion, water emulsion, grain or other forms. It is used in preventing and controlling diseases, such as grape powdery mildew, wheat rust, potato blight, etc. caused by imperfect fungi, ascomycete, basidiomycete and other fungi. It has synergistic effect, wide antifungal spectrum, less resistance and other positive effect.

In the present invention ginkgo leaf, ginkgo epicarp and other parts as raw material are prepared to plant pesticide via drying, crushing, solvent extraction, effective component separation and other steps. The said pesticide is in oil emulsion, water emulsion, microemulsion, wettable powder and other forms. It can be used in killing various pests, including homoptera and lepidoptera pests, such as cotton leafworm, rice stem borer, cabbage moth, plant hopper, etc. and has obvious pesticidal effect, high selectivity, low toxicity, low residue, less drug resistance, etc.

A method for inhibiting the formation of gas hydrates within a fluid comprising a gaseous hydrocarbon phase, a liquid hydrocarbon phase and an aqueous phase which method comprises mixing a polymeric emulsifier and optionally a non-ionic non-polymeric co-emulsifier with the fluid prior to subjecting the fluid to conditions under which gas hydrates can be formed so as to generate a water-in-oil emulsion comprising a discontinuous aqueous phase, a continuous liquid hydrocarbon phase and a substantially gas impermeable interfacial layer comprising said polymeric emulsifier and optionally said non-ionic non-polymeric co-emulsifier wherein the aqueous phase is distributed in the continuous liquid hydrocarbon phase in the form of droplets and the substantially gas impermeable interfacial layer encapsulates said droplets.