Abstract: Disclosed is a composition including controlled release particles, wherein each of the controlled release particles includes: (a) a core including at least one hydrophobic active ingredient; and (b) a wall at least partially surrounding the core and including: (i) an outer layer including a polyurea; (ii) an intermediate layer under the outer layer and including a carbamic-carboxylic anhydride; (iii) an inner layer under the intermediate layer and including an acrylate copolymer; and optionally (iv) an optional outer layer above the outer layer and including a quaternary amine containing moiety, wherein the viscosity of the core can be manipulated from a low viscosity liquid to a semisolid. A method for preparing the composition is also disclosed.

Abstract: The present invention relates to microparticle compositions comprising saflufenacil, to a method of their preparation and to the use of these microparticle compositions for controlling undesired vegetation. In the microparticle compositions saflufenacil is present in the form of microparticles, which comprise solid saflufenacil, which is surrounded or embedded by an aminoplast polymer.

Abstract: Electromagnetically-induced cement concrete crack self-healing diisocyanate microcapsules include raw materials, in parts by weight, comprising 15-55 parts of petroleum resin, 5-10 parts of paraffin, 5-10 parts of polyethylene wax, 3-10 parts of magnetic iron powder and 20-67 parts of diisocyanate. The diisocyanate microcapsules use the diisocyanate as a core material, and the petroleum resin/paraffin/polyethylene wax/magnetic iron powder mixture as the shell of the capsule. When micro cracks occur in the concrete, the crack propagation can break partial of the microcapsule inside, the diisocyanate inside the microcapsules flows out and diffuses into the crack and is subjected to a solidifying reaction with water in the concrete, so that the crack is repaired in time; and for the microcapsules that are not broken by cracks, external electromagnetic field can be applied to melt the shell to release the diisocyanate inside, thereby diffusing into cracks and solidify with water to repair them.

Abstract: The present invention relates to microcapsules comprising a capsule core and a capsule shell wherein the capsule shell comprises a core surrounding layer of a polyvinyl alcohol and an adjacent layer of a polyoxazoline, a process of their production and their use.

Abstract: A composite particle is provided that includes a base particle and a plurality of hydrophilic oligomeric groups extending from an exterior portion of the base particle, the base particle including a cross-linked polyurea and at least one of a pigment and a dye. The cross-linked polyurea may form a network throughout the base particle. A method of making the composite particle includes providing either a solution containing a dye or a dispersion containing a pigment in a water-dispersible polyfunctional isocyanate dissolved in a water-miscible solvent, forming an emulsion of the solution/dispersion in water, agitating the emulsion while the polyfunctional isocyanate is converted into a cross-linked polyurea, and separating the composite particle containing the cross-linked polyurea and the dye/pigment from the emulsion.

Abstract: The present application relates processes that can be used to produce encapsulated benefit agents comprising a core and a shell that encapsulates said core, encapsulated benefit agents produced by such process and products comprising such encapsulated benefit agents as well as methods of making and using such products. Such process can be used to produce particles that offer the desired protection and release benefits when used in a varity of products.

Abstract: The present invention provides microcapsules with good barrier properties and the ability to release encapsulated hydrophobic liquids at low and high pH.

Abstract: The present invention, which belongs to the technical field of display technology, provides a microcapsule, a method of preparing the same, and an OLED (organic light emitting diode) display device comprising the same. The OLED display device comprises a microcapsule having a phosphorescent material as a core material, which reduces the probability of the phosphorescence self-quenching and is isolated from water and oxygen, thereby improving the display quality and extending the service life of the OLED display device. Therefore, the OLED display device can solve the problem that the phosphorescence OLED display device in the prior art has a low brightness and short service life.

Abstract: A clay-like composition for forming a sintered precious metal body, the clay-like composition containing at least one powder selected from the group consisting of precious metal powders and precious metal alloy powders, an organic binder, an organic additive and water, wherein the clay-like composition has an initial hardness measured using a type E durometer of E8 to E20, and has a hardness after standing for one hour at room temperature of E40 or less.

Abstract: The present invention relates to benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. When employed in compositions, for example, cleaning or fabric care compositions, such particles increase the efficiency of benefit agent delivery, thereby allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed.

Abstract: A polymerizable system includes a curable composition and one or more encapsulated initiator particles. The curable composition can include one or more 1,1-disubstituted alkene compounds and the encapsulated initiator particles can include one or more polymerization initiators encapsulated by a cured composition. The cured composition includes one or more 1,1-disubstituted alkene compounds.

Abstract: Embodiments relate to solid nano-particles applied to the surface of well equipment to treat bituminous material adhesion. An embodiment provides a method of treating the surface of well equipment. The method may comprise applying a solid nanoparticle film to the surface of the well equipment with a treatment fluid comprising solid nanoparticles. The method may further comprise allowing the solid nanoparticles to interact with the surface of the well equipment and/or bituminous materials adhered to the surface of the well equipment to remove at least a portion of the bituminous materials from the surface of the well equipment.

Abstract: Provided is a method for the production of a hollow particle, which can easily produce a hollow particle having plural spaces formed inside. The method for the production of a hollow particle is a method for the production of a hollow particle having plural spaces inside thereof, which comprises dispersing an oil-phase liquid prepared by dissolving or dispersing a polymerizable monomer and an oil-soluble polymerization initiator having polymerization initiation ability for the polymerizable monomer in a hydrophobic solvent, in an aqueous medium containing a water-soluble polymerization initiator having polymerization initiation ability for the polymerizable monomer, to form an oil droplet; and applying the oil-soluble polymerization initiator and the water-soluble polymerization initiator at the same time to the polymerizable monomer, and polymerizing the polymerizable monomer, to form a shell dividing plural spaces in a particle.

Abstract: A microencapsulated curing agent for use in curing a thermosetting resin is provided. The microencapsulated curing agent includes an organic peroxide curing agent and a polyurethane resin encapsulating the organic peroxide curing agent. The microencapsulated curing agent, when heated to 100° C. for 30 minutes, exhibits a loss of weight of no greater than 10 wt. %. Additionally, when heated to 140° C. for 5 minutes, the microencapsulated curing agent exhibits a loss of weight of at least 4 wt. %.

Abstract: The invention relates to microcapsules having a particle size distribution that has at least two maxima, wherein the main maximum of the particle size lies in the range of 5 to 100 ?m and wherein the volume assumed by the microcapsules that have a particle size less than ¼ of the particle size of the main maximum is greater than approximately 20% of the total volume of the microcapsules.

Abstract: A polymerizable system includes a curable composition and one or more encapsulated initiator particles. The curable composition can include one or more 1,1-disubstituted alkene compounds and the encapsulated initiator particles can include one or more polymerization initiators encapsulated by a cured composition. The cured composition includes one or more 1,1-disubstituted alkene compounds.

Abstract: Systems and methods of stimulating or activating fluids for use in wound treatment systems.

Abstract: A toner includes toner particles, each containing binder resin and a plurality of microcapsules dispersed therein, each of the microcapsules containing a liquid material. A method for forming an image on a medium includes forming an electrostatic latent image on a carrier, forming a toner image by developing the electrostatic latent image using the toner, transferring the toner image onto a medium, and fixing the transferred toner image on the medium.

Abstract: The subject of the disclosure concerns microcapsules including a core containing one or more alkali metal borates, optionally hydrated, dispersed in one or more lubricating base oils of mineral, synthetic or natural origin, and a polymer shell. Another subject of the disclosure is a lubricating oil including microcapsules. A further subject of the disclosure is the use of microcapsules according to the disclosure as anti-wear and/or extreme pressure additive for lubricant compositions. A further subject of the disclosure is a method for preparing microcapsules by interface polymerization.

Abstract: A brake device comprising: a brake component including: a carrier and an encapsulant, wherein the carrier and encapsulant are disposed on and/or within one or more brake components, and the carrier assists in adhering the encapsulant to the brake component and wherein the encapsulant includes one of more lubricants and/or one or more adhesives, or both and the encapsulant, the carrier, or both are dry to the touch after the encapsulant is attached to the brake component and prior to an initial brake apply.

Abstract: An object of the present invention is to provide a method for producing composite particles of at least one of a curing agent and a curing accelerator which have excellent release properties for at least one of the curing agent and curing accelerator, exhibit excellent rapid curability when contained in a curable resin composition, and have excellent storage stability; and the composite particles of at least one of the curing agent and the curing accelerator. Another object of the present invention is to provide to a thermosetting resin composition that contains the composite particles of at least one of the curing agent and the curing accelerator. The method of the present invention includes the steps of: preparing an emulsion in which droplets containing a compound for forming shells are dispersed in an aqueous medium; impregnating the droplets with at least one of a curing agent and a curing accelerator; and forming shells each enclosing the at least one of the curing agent and the curing accelerator.

Abstract: The disclosure provides a polyurethane microcapsule consisting of a polymerization product of methylene diphenyl diisocyanate (MDI) prepolymer with a polyol, the polyurethane microcapsule comprising a liquid isocyanate compound encapsulated within the microcapsule. The disclosure also provides self-healing coating compositions comprising such polymeric microcapsules and methods of preventing or slowing corrosion using such coating compositions.

Abstract: A liposome comprising bilayer and inner water phase is disclosed. Said inner water phase may contain sulfobutyl ether cyclodextrin and an active compound.

Abstract: An apparatus and a method of preparing electronic ink microcapsules are disclosed. The apparatus of preparing electronic ink microcapsules includes: a first input tube, a second input tube, a UV light source, and an output tube connected to both the first input tube and the second input tube, respectively. The first input tube is a shading tube adapted to input an electrophoresis suspension comprising a mixture of a pre-polymer and a photo-initiator. The second input tube is adapted to input an aqueous solution comprising surfactant. The UV light source is adapted to radiate the mixed liquid in the output tube which is a mixture of the liquids input from the first input tube and the second input tube to prepare the electronic ink microcapsules. The electronic ink microcapsules prepared by using the apparatus and the method of preparing electronic ink microcapsules exhibit advantages including good uniformity, good thermal stability, etc.

Abstract: A method of manufacturing a reflective display device comprises depositing an electro-optical ink on a substrate, the electro-optical ink comprising a plurality of microencapsulated electro-optical fluid shells dispersed in a polymer pre-cursor. The electro-optical ink is cured to provide an electro-optical layer in which the shells are maintained in a polymer matrix having at least two-phases. At least one of the phases in the polymer matrix has a refractive index differing from the shells. At least one electrode is provided in contact with the electro-optical layer to, in use, control the state of the electro-optical layer.

Abstract: Methods to produce pH-sensitive microparticles that have an active agent dispersed in a polymer matrix have certain advantages over microcapsules with an active agent encapsulated in an interior compartment/core inside of a polymer wall. The current invention relates to pH-sensitive microparticles that have a corrosion-detecting or corrosion-inhibiting active agent or active agents dispersed within a polymer matrix of the microparticles. The pH-sensitive microparticles can be used in various coating compositions on metal objects for corrosion detecting and/or inhibiting.

Abstract: Biocompatible hydrogel capsules encapsulating mammalian cells having a diameter of greater than 1 mm, and optionally a cell free core, are disclosed which have reduced fibrotic overgrowth after implantation in a subject. Methods of treating a disease in a subject are also disclosed that involve administering a therapeutically effective amount of the disclosed encapsulated cells to the subject.

Abstract: A microcapsule comprising A) a core containing a hydrophobic liquid or wax, B) a polymeric shell comprising a) a polymer formed from a monomer mixture containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylenically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethylenically unsaturated monomer, and iii) 0 to 60% by weight of other mono functional monomer, and b) a further hydrophobic polymer which is insoluble in the hydrophobic liquid or wax. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

Abstract: A process of forming a population of microcapsules is described comprising a liquid hydrophilic core material and a wall material at least partially surrounding the core material. The liquid hydrophilic core material can be anionic, cationic, or neutral but polar. The microcapsule population is formed by providing liquid hydrophilic core material; providing an oil continuous phase which is low boiling and preferably nonflammable, the oil continuous phase comprising preferably one or more organic oil materials such as esters with chain length up to about 42 carbons. A mixture is formed by dispersing the liquid hydrophilic material in the oil continuous phase. Either an oil soluble or dispersible monofunctional amine acrylate or monofunctional amine methacrylate, along with acid; or alternatively monofunctional acid acrylate or monofunctional acid methacrylate along with base; or alternatively, monofunctional amine acrylate or monofunctional amine methacrylate along with acid acrylate or methacrylate; is added.

Abstract: A microcapsule comprising a core containing a hydrophobic liquid or wax and a polymeric shell formed from: i) 1 to 20% by weight of polymerizable silane compound, ii) 1 to 94% by weight of hydrophobic mono functional ethylenically unsaturated monomer, iii) 5 to 98% by weight of polyfunctional ethylenically unsaturated monomer, and iv) 0 to 60% by weight of other mono functional monomer(s), wherein components (i), (ii), (iii) and (iv) total 100%, and in which the microcapsule also includes a hydrophilic polymer which is covalently bonded to the microcapsule. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

Abstract: A method for encapsulating a material comprises the steps of choosing a material to encapsulate; placing the material into a material solvent to form a material solution; forming a primary emulsion of the material solution in an immiscible liquid medium that is immiscible with the material solvent, the material solution serving as the disperse phase and the immiscible liquid medium serving as the continuous phase of the primary emulsion, wherein the immiscible liquid medium contains an encapsulating agent dissolved therein, the encapsulating agent being capable of being crosslinked, polymerized, gelled or otherwise hardened or solidified; adding the primary emulsion as droplets into a crosslinking medium, and thereafter activating the crosslinking, polymerizing, gelling, hardening or solidifying of the encapsulating agent to envelope the material in a crosslinked, polymerized, gelled or otherwise hardened or solidified matrix forming the droplets into beads.

Abstract: The invention provides a method for encapsulating a liquid, which method comprises the steps of providing a suspension of droplets of the liquid to be encapsulated; stabilizing the suspension of droplets with a surfactant; adding a layered inorganic material to the stabilized suspension; and subjecting the suspension to a treatment which establishes that a shell of a hybrid material is formed around the droplets, which hybrid material comprises at least part of the inorganic material and at least part of the surfactant. The invention further provides encapsulated liquid droplets obtainable by said method.

Abstract: Each capsule comprises a liquid core (14) and a gelled shell (16) comprising a gelled polyelectrolyte completely encapsulating the liquid core (14) at the periphery thereof. The gelled shell (16) is suitable for retaining the liquid core (14) when the capsule (12) is immersed in a gas. The liquid core (14) comprises an intermediate drop (18) of an intermediate phase, the intermediate phase being placed in contact with the gelled shell (16), and at least one internal drop (20) of an internal phase placed in the intermediate drop (18). The ratio of the volume of the core (14) to the volume of the gelled shell (16) is greater than 2, advantageously is greater than 50.

Abstract: Polyurea capsules that encapsulate active materials in polymeric walls resulting from the polymerization of an aliphatic polyisocyanate and a cross-linking agent such as a diamine, amphoteric amine or guanidine amine/salt are provided as are consumer products containing said polyurea capsules and for methods for producing such capsules.

Abstract: A process for preparing a microcapsules comprising an oil-based core material such that particle agglomeration is minimized during wall formation, the process employs reaction of an isocyanate or diisocyanate first with a guanidine compound followed by reaction with a polyfunctional amine.

Abstract: Phospholipid-microvesicle-encapsulated surface enhanced Raman scattering (SERS) nanoparticles and methods for making the encapsulated particles are described. The encapsulated particles can be used in nanomedicine. Four Raman-active species were used. A bilayer was observed by TEM, and the SERS spectrum of each dye species (SERS reporter) was confirmed.

Abstract: A method and apparatus for generating droplets with a high level of uniformity in liquid systems that present a low interfacial tension. This method and apparatus utilize the breakup of the dispersed phase in a controlled fashion by periodically varying the pressure that drives the fluids so as to successfully generate emulsions with a good control over the size. The method and apparatus can be used for the formation of simple emulsion or double emulsion where a larger droplet contains one or more smaller droplets.

Abstract: The present invention concerns microcapsules comprising a capsule core and a capsule wall, the capsule wall being constructed from 30% to 90% by weight of one or more C1-C24-alkyl esters of acrylic and/or methacrylic acid, acrylic acid, methacrylic acid and/or maleic acid (monomers I), 10% to 70% by weight of a mixture of divinyl and polyvinyl monomers (monomers II), the fraction of polyvinyl monomers being in the range from 2% to 90% by weight based on the monomers II, and also 0% to 30% by weight of one or more miscellaneous monomers (monomer III), all based on the total weight of the monomers, a process for their production and their use in textiles, bindered building materials and heat transfer fluids.

Abstract: The invention provides a microsphere formulation for the sustained delivery of an aptamer, for example, an anti-Vascular Endothelial Growth Factor aptamer, to a preselected locus in a mammal, such as the eye. In addition, the invention provides methods for making such formulations, and methods of using such formulations to deliver an aptamer to a preselected locus in a mammal. In particular, the invention provides a method for delivering the aptamer to an eye for the treatment of an ocular disorder, for example, age-related macular degeneration.

Abstract: The disclosure provides a polyurethane microcapsule consisting of a polymerization product of methylene diphenyl diisocyanate (MDI) prepolymer with a polyol, the polyurethane microcapsule comprising a liquid isocyanate compound encapsulated within the microcapsule. The disclosure also provides self-healing coating compositions comprising such polymeric microcapsules and methods of preventing or slowing corrosion using such coating compositions.

Abstract: Provided are a method of fabricating an electrophoretic ink, the electrophoretic ink formed using the method, and an electrophoretic display having the same. The method of fabricating an electrophoretic ink includes dispersing pigment particles into a dielectric fluid; adding at least one monomer and an initiator into the dielectric fluid; and forming polymeric membranes surrounding the pigment particles in the dielectric fluid. Since the pigment particle surrounded by the polymeric membrane and the dielectric fluid in which the pigment particle is dispersed can be utilized as the electrophoretic ink as they are without a follow-up cleaning process, the method of fabricating the electrophoretic ink is simplified.

Abstract: A method is provided for encapsulating products that can have lipophilic or hydrophilic, including volatile, properties in a polysiloxane membrane that is particularly impervious. A method is also provided for evaluating the imperviousness of capsules. The present method includes the following steps: a) formation of droplets by an emulsion between an oily phase containing the product to be encapsulated and an acidic aqueous phase heated to around 50° C. and in the presence of surfactants; b) addition and hydrolysis of at least one silane in order to obtain a silanol; c) increasing the pH in order to start condensation of the silanol to form a first membrane around the droplets of the product to be encapsulated; d) lowering the pH; e) increasing the pH, optionally preceded by adding a silane, in order to obtain a new condensation of silanol around the droplets of the product to be encapsulated.

Abstract: A process of forming a population of microcapsules is described comprising a solid hydrophilic core material and a wall material at least partially surrounding the core material. The microcapsule population is formed by providing an anionic, or optionally a cationic, solid hydrophilic core material; providing an oil continuous phase which is low boiling and preferably nonflammable, the oil continuous phase comprising one or more esters with chain length up to about 18 carbons. A mixture is formed by dispersing the solid hydrophilic material in the oil continuous phase. Either an oil soluble or dispersible amine acrylate or methacrylate, along with acid, or alternatively acid acrylate or methacrylate along with base is added. A multifunctional acrylate or methacrylate monomer or oligomer is provided and an initiator. Optionally a surfactant is also added to form the mixture.

Abstract: Photoactivatable prepolymers and methods of use thereof are disclosed for microencapsulation of a substantially water-insoluble material within a nonporous shell. As provided herein, the microencapsulated material is released with no more than a slow release rate. Upon exposure of the nonporous shell to light, the nonporous shell is converted into a porous shell having an increased release rate for the microencapsulated material.

Abstract: The present invention relates to the fabrication and use of microbubbles. In some embodiments, the invention provides for the fabrication and use of polymerized shell lipid microbubbles (PSMs). The microbubbles of the invention can be used, for example, for diagnosis and treatment of a condition.

Abstract: An electrophoretic medium comprises a continuous phase and a discontinuous phase. The discontinuous phase comprises a plurality of droplets, each of which comprises a fluid and at least one charged particle disposed within the fluid and capable of moving through the fluid upon application of an electric field to the electrophoretic medium. The continuous phase surrounds and encapsulates the discontinuous phase and comprising a polymeric binder and a salt, the salt having an anion containing at least one fluorine atom and having a water solubility of at least about 0.25 per cent by weight at 25° C.

Abstract: The application describes a process for producing microcapsules which contain a shell made of polyurea and which surround in their interior a water-insoluble oil, where the shell is obtained by the reaction of two structurally different diisocyanates in emulsion form.

Abstract: Polyurea and polyamide capsules encapsulating fragrance oils, which oils contain precursors of fragrant aldehydes that are adapted to release the aldehydes under activating conditions.

Abstract: A nanoassembly includes a core protected by a biocompatible shell. The nanoassembly includes a plurality of block copolymers including drug-binding linkers and block copolymer cross-linkers. A first active agent is covalently conjugated to the plurality of block copolymers and a second active agent is physically entrapped in the core.

Abstract: A method of making capsules includes forming a mixture including a core liquid, a polyurethane precursor system, a first component of a two-component poly(urea-formaldehyde) precursor system, and a solvent. The method further includes emulsifying the mixture, adding a second component of the two-component poly(urea-formaldehyde) precursor system to the emulsified mixture, and maintaining the emulsified mixture at a temperature and for a time sufficient to form a plurality of capsules that encapsulate at least a portion of the core liquid. The capsules made by the method may include a polymerizer in the capsules, where the capsules have an inner capsule wall including a polyurethane, and an outer capsule wall including a poly(urea-formaldehyde). The capsules may include in the solid polymer matrix of a composite material.