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7291348 |
Compositions and methods for biodegradable microspheres as carriers of bioactive substances
A cost-effective, scalable technique for producing microspheres loaded with biologically active solid proteins is provided. The microspheres degrade over time and release biologically active VEGF,...
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7201962 |
Hemocompatible coated polymer and related one-step methods
A polymer with a hemocompatible film or coating is manufactured by a one-step method comprising polymerizing monomer droplets comprising at least one crosslinking agent to form a polymer and...
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7192620 |
Mold-release coating systems
A mold-release coating system includes a barrier coating of a substantially liquid wax material. The wax material is deposited onto the mold surface. The wax material includes about 7 to about 10...
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7179490 |
Sustained release ionic conjugate
A method of spherifying a sustained release ionic conjugate which contains a free carboxyl group-containing biodegradable polymer and a free amino group-containing drug which are ionically bonded...
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7112620 |
Hemocompatible polymer systems & related methods
A polymer system with a hemocompatible film or coating is provided, the system comprises an organic phase and an aqueous phase, the organic phase comprises polymerizable monomers and at least one...
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7056554 |
Production of polyelectrolyte capsules by surface precipitation
The invention concerns a method for producing nanocapsules and microcapsules comprising a polyelectrolyte shell by surface precipitation from the solution, by applying a shell to template particles...
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7033609 |
Microparticle preparation
A parenterally administrable, biodegradable microparticle preparation containing a biologically active substance which, during the first 24 hours after injection, exhibits a release of the active...
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7011776 |
Method and apparatus for preparing microspheres
An improved method for the preparation of a microsphere from an emulsion wherein an organic phase containing an organic solvent having a boiling point lower than that of water and a...
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6932984 |
Method of microencapsulation
A method for microencapsulation of substances is provided. The substance(s) is/are dissolved or dispersed in an organic solvent of the kind that is partially miscible in water media. This organic...
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6844026 |
Preparation of particles by hydrolysis of a metal cation in the presence of a polymer
A subject matter of the invention is a process for the preparation of particles comprising at least one metal ion, which comprises the stage of bringing into contact a precursor a metal cation,...
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6767637 |
Microencapsulation using ultrasonic atomizers
A method for generating a plurality of drug-containing microcapsules employs one or more atomizers to form the microcapsules by the phenomenon of solvent exchange. A plurality of microdroplets of...
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6737108 |
Microcapsulating conductive metal particles with polymerized monomers
A process for producing a MC-type conductive filler includes treating minute metallic particles with a coupling agent, preparing an oil phase of the coupling agent-treated minute metallic particles...
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6692667 |
Process of making a phosphorescent fiber
A method of making phosphorescent fiber having phosphorescent particles composed, by weight, of 55-62.5% of strontium oxide, 35-42.5% of aluminum oxide, 1-9% of dysprosium oxide and 0.5-1.5% of...
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6660382 |
Process for manufacturing coated granules with masked taste and immediate release of the active principle
The invention concerns a method for making coated granules with masked taste and instant release of the active principle which consists in: first, mixing the constituents of a powder comprising at...
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6599627 |
Microencapsulation of drugs by solvent exchange
A solvent exchange method is employed to provide microencapsulated compositions, such as microcapsules of pharmaceutical preparations. The method is based on an exchange of water and a hydrophilic...
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6565777 |
Encapsulation of bioactive agents
Bioactive agent is encapsulated in a polymer microparticle in a (water-in-oil)-in-water emulsion-based method, and using a solvent that comprises ethyl acetate. Also described are microparticles...
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6544559 |
Microencapsulated 3-piperidinyl-substituted 1,2-benzisoxazoles and 1,2-benzisothiazoles
Sustained-release microparticle composition. The microparticle composition can be formulated to provide multi-phasic release. In one aspect, the composition includes microparticles having more than...
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6534092 |
Method for preparing microparticles having a selected polymer molecular weight
A method for preparing microparticles having a selected polymer molecular weight. The hold time and temperature of a solution containing a nucleophilic compound and a polymer having a starting...
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6503762 |
Magnetic carrier, preparation thereof, and method of extraction of nucleic acid
A novel magnetic carrier is provided which comprises particulate silica containing a magnetic material, having polyacrylamide on the surface thereof in an amount ranging from 0.3 to 5 mmol/g in...
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6503559 |
Neonanoplasts and microemulsion technology for inks and ink jet printing
The present invention relates to colorant compositions containing neonanoplasts. The colorant compositions exhibit improved color brightness and brilliance due to the incorporation of one or more...
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6500534 |
Powder-coated substrates with topcoat based on silanes containing epoxide groups
The invention relates to powder-coated substrates bearing on a powder-coated surface a scratch-resistant and abrasion-resistant topcoat of a coating material which comprises: a) condensates based...
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6444261 |
Storage-stable particle, in particular carrier for carrier-bound reactions, and methods of producing said particle
A particle resistant to storage of at least one first and at least one second component, wherein said second component of at least one crosslinkable polymer as a shell at least partially envelops...
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6440493 |
Emulsion-based processes for making microparticles
Processes for making microparticles, preferably containing an active agent, are provided. In a preferred embodiment, the process involves preparing (1) a dispersed phase containing an agent in a...
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6395302 |
Method for the preparation of microspheres which contain colloidal systems
The invention relates to a method for the preparation of microencapsulated colloidal systems such as liposomes, i.e., microspheres which comprise colloidal systems. These microencapsulated...
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6391338 |
System for rendering substantially non-dissoluble bio-affecting agents bio-available
The present invention is a method of preparing a system for delivering a bio-affecting agent and the composition prepared thereby. The invention includes forming a molecular dispersion of the...
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6376078 |
Spherical fine particles of silicone resin
Disclosed are spherical particles of a polyorganosilsesquioxane resin have a unique optical properties when each particle has a core-cladding composite structure consisting of a core portion of,...
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6265025 |
Method for the production of ultrafine particles by electrohydrodynamic micromixing
The present invention relates to a method for the rapid production of homogeneous, ultrafine inorganic material via liquid-phase reactions. The method of the present invention employs...
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6235224 |
Process for preparing microparticles through phase inversion phenomena
A process for preparing nanoparticles and microparticles is provided. The process involves forming a mixture of a polymer and a solvent, wherein the solvent is present in a continuous phase and...
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6224794 |
Methods for microsphere production
A process for forming microspheres that includes passing a first composition containing polymer and solvent through an orifice and directly into a second composition containing water and a...
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6224793 |
Encapsulated active materials
The invention is an encapsulated active agent comprising an active agent encapsulated in a crystallizable or thermoplastic polymer wherein the particle size of the encapsulated active agent is...
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6217999 |
Photochemical reactor element containing microcapsulated titanium dioxide photocatalyst
A photochemical reactor element containing microcapsulated TiO 2 photocatalyst particles dispersed in a polysiloxane matrix is disclosed. The polysiloxane matrix has an oxygen gas permeability not...
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6197349 |
Particles with modified physicochemical properties, their preparation and uses
Particles comprising (a) a supercooled melt of a poorly water-soluble substance and (b) a stabilizing agent, which have a mean particle size of between 30 and 500 nm, and disperse compositions...
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6123988 |
Process for the preparation of polyurethane spherical particle
This invention relates to the process for the preparation of polyurethane with controlled particle size and shape. More, particularly it relates to the production of polyurethane microspheres from...
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6103378 |
Capsules having discrete solvent/color former and diluent capsule encapsulated phases
A process for producing a microencapsulated system comprising the steps of: (a) emulsifying a solution of color precursor in a solvent as a first internal phase and a diluent as a second internal...
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6103269 |
Solid bodies containing active substances and a structure consisting of hydrophilic macromolecules, plus a method of producing such bodies
The invention relates to accurately meterable shaped articles, for example granules or pellets, containing hydrophilic macromolecules, active compounds and optionally further pharmaceutically...
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6090317 |
Polyoxyethylene having a sugar on one end and a different functional group on the other end and a method of production thereof
This invention provides a heterotelechelic oligomer or polymer which is represented by the following formula: ##STR1## wherein A denotes a sugar residue, L denotes a linkage group represented by...
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6080443 |
Method for production of microcapsule type conductive filler
A process for producing a MC-type conductive filler includes treating minute metallic particles with a coupling agent, preparing an oil phase of the coupling agent-treated minute metallic particles...
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6080429 |
Method for drying microspheres
A method for drying microspheres in a fluidized bed is provided, along with a composition comprising microspheres dried by that method.
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6077544 |
Spheroids, preparation process and pharmaceutical compositions
The present invention relates to a novel pharmaceutical form, in the form of spheroids, containing one or more active principles, which the exception of tiagabine. The invention also covers the...
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6060553 |
Non-agglomerating elastomeric particles
Elastomeric particles, which have a tendency to agglomerate, are rendered non-agglomerating by contacting those particles with an aqueous solution or dispersion of a polyurethane rubber, a high...
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6039900 |
Particulate polymeric materials and their production
A dispersion is formed of aqueous polymer particles in a non-aqueous liquid and a stabiliser is covalently reacted on to the particles.
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6033781 |
Ceramic powders coated with siloxane star-graft polymers
A coated ceramic powder comprises a plurality of ceramic particles and a siloxane star-graft coating polymer encapsulating at least a portion of the particles. The coating polymer comprises...
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6022500 |
Polymer encapsulation and polymer microsphere composites
A process is described for the enzyme catalyzed synthesis of polymeric microspheres from monomers such as ethylphenol, naphthols and hydroxypyrenes in reverse micelles in the presence of a...
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5993967 |
Siloxane star-graft polymers, ceramic powders coated therewith and method of preparing coated ceramic powders
A coated ceramic powder comprises a plurality of ceramic particles and a siloxane star-graft coating polymer encapsulating at least a portion of the particles. The coating polymer comprises...
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5989630 |
Polymers having more than one void
Disclosed are a polymer in the form of particles more than 1 μm in size which contain more than one void, an aqueous dispersion comprising this polymer, processes for the preparation thereof and...
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5985247 |
Method for the production of microbubble-type ultrasonic contrast agent by surfactant
An imaging agent for ultrasound to be administered into a vein is provided. More specifically, an imaging agent for ultrasound containing microbubbles, which has a long-life and is stable within a...
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5976405 |
Method for forming pluralities of droplets and polymer particles having low polydispersity
Disclosed are uniformly sized domains of liquid crystals, a method for forming the domains, and their performance in polymer dispersed liquid crystal displays. The method provides the ability to...
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5972363 |
Use of an encapsulated bioactive composition
The present invention relates to a method for delivering a bioactive compound to the site where it will exhibit its biological affect and controlling the delivery of the bioactive compound through...
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5955143 |
Hollow polymer microcapsules and method of producing the same
Hollow polymer microcapsules are made by the method of dissolving a film-forming polymer in a volatile nonaqueous solvent; dispersing into the polymer solution finely divided particles of a...
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5939089 |
Method for providing a stable protective coating for UV sensitive pesticides
A method of encapsulating a pesticide with an ultraviolet protectant comprises the steps of forming a slurry of a pesticide and a lignin-containing material, and spraying a stream of acid and the...
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