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Class 427/213.34 - Solid-walled microcapsule formed by in situ polymerization


Subclass of Class 427 - Coating processes
Definition: Subject matter wherein the solid-walled microcapsule is
No. of patents: 187
Last issue date: 09/28/2010


1          
NumberTitleIssue Date
7803423Preparation of nanoparticle materials
A method of producing nanoparticles comprises effecting conversion of a nanoparticle precursor composition to the material of the nanoparticles. The precursor composition comprises a first precursor species containing a first ion to be incorporated into the growing ...
09/28/2010
7521085Method to incorporate pigment into paint by formation of resin beads
A coating composition is prepared by polymerizing an addition polymer with a Tg of at least about 60° C. in the presence of a particulate pigment having substantially primary aggregate particles to form encapsulated pigment particles, isolating and dryin...
04/21/2009
7442410Method for encapsulating phase transitional paraffin compounds using melamine-formaldehyde and microcapsule resulting therefrom
A process for the microencapsulation of phase transitional paraffin compounds is described. Polypropylene glycols with the average molecule weight over 400 were used as the surface tension modifiers for emulsifying the paraffin compounds. Polyisocyanates capable of ...
10/28/2008
7276090Method of fabricating a dry electro-active polymeric synthetic muscle
New polymeric materials and their fabrication methods that are electrically active in terms of sensing and actuation are invented. These materials are comprised of solid-state ion-conducting materials such as polyethylene oxide (PEO) and its derivatives or imbedded ...
10/02/2007
7258428Multiple head concentric encapsulation system
A multi-headed ink-jet system adapted to eject encapsulated liquids is provided, which includes a plurality of concentric piezoelectric members. Each concentric piezoelectric member has a chamber configured to carry a liquid therethrough, and each concentric piezoel...
08/21/2007
7252790Zinc sulfide electroluminophores and method for production thereof
Zinc sulfide electroluminophores are prepared from solutions of zinc salts with hydrogen sulfide. The zinc sulfide compounds are mixed with activator and coactivator compounds to produce luminophores, and the mixtures are fired in the presence of fixing agents. Thes...
08/07/2007
7226547Electroluminescent phosphor powders, methods for making phosphor powders and devices incorporating same
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic producti...
06/05/2007
7195777Method and apparatus for blowmoding capsules of polyvinylalcohol and blowmolded polyvinylalcohol capsules
A capsule is formed from a PVA composition by blow moulding. Such capsules can at last provide a viable alternative to gelatin for bio-degradeable capsule containing a pharmaceutical or consumable or other substance, for example a detergent. The capsules may contain...
03/27/2007
7170670Electrophoretic medium and display with improved image stability
An electrophoretic medium comprises a plurality of particles suspended in a suspending fluid, the particles being capable of moving through the fluid upon application of an electric field to the medium, the fluid having dissolved or dispersed therein a polymer havin...
01/30/2007
7153754Methods for forming porous insulators from “void” creating materials and structures and semiconductor devices including same
Methods for forming porous insulative materials for use in forming dielectric structures of semiconductor devices are disclosed. Each insulative material may include a first, substantially nonporous state and a second, porous state. When in the first state, the insu...
12/26/2006
7115303Process for producing spherical composite cured melamine resin particles
A process for producing spherical composite cured melamine resin particles excellent in water resistance, in which colloidal silica is localized near the surface thereof, comprising (a) a step of reacting a melamine compound with an aldehyde compound in an aqueous m...
10/03/2006
7112620Hemocompatible 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 initiator and the aqueous phase comprises at least one dispersing agen...
09/26/2006
7067071Zinc sulfide electroluminophores and method for production thereof
Zinc sulfide electroluminophores are prepared from solutions of zinc salts with hydrogen sulfide. The zinc sulfide compounds are mixed with activator and coactivator compounds to produce luminophores, and the mixtures are fired in the presence of fixing agents. Thes...
06/27/2006
7067324Photon reducing agents for fluorescence assays
The present invention provides a method for reducing undesirable light emission from a sample using at least one photon producing agent and at least one photon reducing agent (e.g. dye-based photon reducing agents). The present invention further provides a method fo...
06/27/2006
7045586Adhesives having improved chemical resistance and curable silicone compositions for preparing the adhesives
This invention relates to a composition that can be cured to form an adhesive. The adhesive is useful in the electronics industry. The composition is prepared by mixing components including: (I) a polyorganosiloxane having an avera...
05/16/2006
7038833Encapsulated bichromal balls
Disclosed is an encapsulant oil and associated method for producing encapsulated bichromal balls or particles. In this regard, bichromal balls are encapsulated within a mixture of low viscosity polysiloxane oil and a bifunctional component material. The bifunctional...
05/02/2006
7033639Polyaniline coating composition
A coating composition including a polyaniline particle and a binder is provided. The polyaniline particle contains a core polymer particle with strong acid groups and an attached polyaniline polymer, and has a particle diameter in a select range. Coatings prepared f...
04/25/2006
7022261Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same
Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same. The powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention permits the continuous prod...
04/04/2006
7005480Resin dispersions having uniform particle diameters, resin particles and processes for producing both
The present invention provides a method of producing an aqueous dispersion. A resin (b) or a solvent solution thereof, or a precursor (b0) of the resin (b) or a solvent solution thereof is dispersed in an aqueous dispersion of resin particles (A) composed of resin (...
02/28/2006
7002728Electrophoretic particles, and processes for the production thereof
Copper chromite particles can advantageously be used as black particles in electrophoretic media and displays. Preferably, the copper chromite particles are coated with a silica coating and a polymer coating. ...
02/21/2006
7001665Electroluminescent phosphor with plural moisture resistant coatings thereon
A moisture-resistant electroluminescent phosphor is provided wherein the individual phosphor particles have a first coating of an inorganic moisture-resistant coating and a second coating of an organic moisture-resistant coating. The process for making the moisture-...
02/21/2006
6964836Photosensitive microcapsules containing a synthetic viscosity modifier in the continuous phase
A process for forming photosensitive microcapsules having discrete capsule walls comprising the steps of forming an emulsion of an oily core material in a continuous aqueous phase containing a carboxyvinyl polymer and enwrapping particles of the oily core material i...
11/15/2005
6958848Capsules, materials for use therein and electrophoretic media and displays containing such capsules
An encapsulation material, intended for use in encapsulated electrophoretic displays, comprises the coacervation product of a polyanionic polymer having a vinyl main chain and a plurality of anionic groups bonded to the main chain, with a cationic or zwitterionic wa...
10/25/2005
6916640Multi-layer cell encapsulation for tissue engineering
A multi-layered microcapsule has an inner extracellular matrix and an outer shell. The inner extracellular matrix includes a first inner layer of biopolymer and a second intermediate layer of polymer that provides partial immune-protection and holds the first layer ...
07/12/2005
6913825Process for making mesoporous silicate nanoparticle coatings and hollow mesoporous silica nano-shells
Nanoparticles, nanocomposites, and methods for making the nanoparticles and nanocomposites are disclosed. Illustrated methods include preparing a nanocomposite particle by binding a silicate compound to the surface of a core particle in an aqueous suspension, adding...
07/05/2005
6890592Uniform microcapsules
The present invention teaches an improved process for preparing a population of microcapsules having a substantially uniform size distribution, especially useful for manufacture of carbonless paper. The improved process teaches use of membrane material having a pre-...
05/10/2005
6884829Hemocompatible 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 simultaneously coating the resulting polymer using at least one dispersing ...
04/26/2005
6881810Microcapsule and process for manufacturing the same
A microcapsule which includes a polymer as a capsule wall of the microcapsule, in which the polymer is obtained by polymerizing a dendritic branching molecule having a hydroxyl group in a terminal thereof, an isocyanate compound, and a compound having two or more ac...
04/19/2005
6861064Encapsulation method
A novel method of encapsulating an active substance in a biodegradable polymer, which comprises: a) dissolving said biodegradable polymer in an organic solvent therefor; b1) dispersing said active substance in the organic solution obtained in step a) to p...
03/01/2005
6753083Particles
A particulate composition comprising particles having a core comprising a hydrophobic polymer within a shell, characterised in that the shell comprises a semi-permeable membrane. Particulate composition can be used for making a stable dispersion of particles uniform...
06/22/2004
6746684Microencapsulated solid pesticides
A microcapsule characterized by comprising a solid pesticide as a core material coated with a wall material which is a resin formed by polycondensation of a sparingly water-soluble melamine-formaldehyde resin type prepolymer (said sparingly water-soluble melamine-fo...
06/08/2004
6737108Microcapsulating 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 and a reactive substance A, the reactive substance A directly contac...
05/18/2004
6719932Particles and a process for preparing the same
Disclosed are a plurality of particles having a narrow particle size distribution, a processes for forming the same, and films containing the same. The plurality of particles, includes one or more discrete polymer shells, wherein at least one of the polymer shells i...
04/13/2004
6632531Porous particles, their aqueous dispersions, and method of preparation
A method of forming, by polymerization in an aqueous dispersion at pressures in excess of one atmosphere, a plurality of porous particles having at least one polymeric phase and, additionally, having a pore filling phase containing a fugitive substance is...
10/14/2003
6630197Inhibition of sulfate-reducing-bacteria-mediated degradation using bacteria which secrete antimicrobials
The present invention relates to the field of degradation or corrosion prevention or inhibition through the use of bacteria which secrete antimicrobial chemical compositions. In particular, the invention relates to the use of bacteria which, either natura...
10/07/2003
6596204Method of encapsulating a volatile liquid
A process of micro-encapsulating a volatile liquid includes selecting a volatile liquid, such as Isophorone, and porous ceramic particles for encapsulating the volatile liquid. The volatile liquid and porous particles are mixed and a vacuum is applied to ...
07/22/2003
6531519Antimicrobial synthetic ion exchange resins
A method of preventing the growth of heterotrophic bacteria and the subsequent establishment of a biofilm on the surface and in the micropores of an antimicrobial synthetic ion exchange resin. An antimicrobial synthetic ion exchange resin that prevents th...
03/11/2003
6503559Neonanoplasts 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 colorants in the neonanoplasts. The colorant compositions m...
01/07/2003
6500447pH-sensitive microcapsules
The present invention provides pH-sensitive micro-capsules, compositions containing them, methods for their preparation and methods for their use....
12/31/2002
6486099Microcapsule and process for production thereof
A microcapsule (or microencapsulated product) having a uniform and smooth coating film and also an excellent performance of gradually liberating the content material is produced at a good particle size distribution while suppressing the occurrence of isol...
11/26/2002
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