Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 3146. Отображено 100.
12-01-2012 дата публикации

Encapsulated cure systems

Номер: US20120010364A1
Автор: Adam Gregg Malofsky, Bernard Miles Malofsky, Gregory Stephen Kulibert, Michael Curley Krzoska, Nagib Maurice Ward, Todd Arlin Schwantes
Принадлежит: Appleton Papers Inc

Encapsulated cure systems are provided wherein a curative is incorporated into a solid or semi-solid carrier material whereby mere fracturing or failure of the capsule wall encapsulating such cure systems will not provide for or allow sufficient release of the curative. Also provided are adhesive systems incorporating said encapsulated cure systems.

Подробнее
Номер записи: 1
29-03-2012 дата публикации

Delivery of Herbicidal Actives From Highly Charged Microcapsules

Номер: US20120074603A1
Автор: Daniel H. Traynor, Henry G. Traynor
Принадлежит: Individual

This invention relates to a method for forming hollow silica-based particles suitable for containing one or more herbicidal active ingredients. In the method for forming the herbicidal composition, an emulsion is prepared wherein the emulsion includes a continuous phase that is polar or non-polar, and a dispersed phase comprising droplets including (i) a polar herbicidal active ingredient when the continuous phase is non-polar or (ii) a non-polar herbicidal active ingredient when the continuous phase is polar. A silica precursor is added to the emulsion such that the silica precursor can be emulsion templated on the droplets to form hollow silica-based particles that encapsulate the herbicidal active ingredient,

Подробнее
Номер записи: 2
14-03-2013 дата публикации

Process of treatment of fibers and/or textile materials

Номер: US20130064876A1
Автор: Alfonso FERNÁNDEZ BOTELLO, Josep LLuís VILADOT PETIT, Raquel DELGADO GONZÁLEZ
Принадлежит: Lipotec SA

A process of treatment of textile materials containing microcapsules of active ingredients, the fibers and/or textile materials resulting from this process and their cosmetic or pharmaceutical use and/or their use as a repellent.

Подробнее
Номер записи: 3
21-03-2013 дата публикации

Compositions Comprising Solid Particles Entrapped In Collapsed Polymeric Microspheres, And Methods Of Making The Same

Номер: US20130071453A1
Автор: Cummins Phillip, Fthenakis Christina F., Sojka Milan F., Xavier Jean Harry
Принадлежит:

The present invention relates to topical compositions containing solid particles that are stabilized via entrapment by microspheres and methods for making the same. Each of the microspheres contains a collapsed polymeric shell that has entrapped therein one or more solid particles. The solid particles are preferably formed of zinc oxide or titanium dioxide or both, which can readily be used either alone or in combination with other sunscreen agents to form sunscreen compositions of broader UV protection spectrum and enhanced photostability. 1. A method for modifying or treating solid particles , comprising:(a) forming a gelled mixture by mixing either simultaneously or sequentially in any order (1) hollow microspheres each comprising a deformable polymeric shell having entrapped therein an expandable fluid, (2) a first organic solvent which is present in an amount sufficient to swell and implode the microspheres but not dissolve the polymeric shells of the hollow microspheres, and (3) solid particles, wherein molecules of the first solvent enter between polymeric chains of the polymeric shell and disrupt intermolecular bonds between the chains, forming micro-channels in the swelled polymer shells which substantially simultaneously allow entry of the solid particles into the hollow microspheres and exit of a first portion of the expandable fluid therefrom, thereby collapsing the microspheres and entrapping the solid particles therein;(b) introducing a second solvent which is miscible with the first solvent into the gelled mixture with sufficient agitation to quench the gelled mixture, thereby diluting the first solvent and permitting exit of a second portion of expandable fluid from the microspheres so as to form separated microspheres, each comprising a collapsed polymeric shell, having an average particle size in the range of from about 1 to about 50 microns, and having one or more of said solid particles entrapped therein; and(c) removing the expandable fluid and ...

Подробнее
Номер записи: 4
21-03-2013 дата публикации

Thermally Robust Capsule System, And Composites Including The Capsules

Номер: US20130072596A1
Автор: Blaiszik Benjamin J., Caruso Mary M., Moore Jeffrey S., Sottos Nancy R., White Scott R.
Принадлежит: The Board of Trustees of the University of Illinois

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. 1. A method of making capsules , comprising: a core liquid,', 'a polyurethane precursor system,', 'a first component of a two-component poly(urea-formaldehyde) precursor system, and', 'a solvent;, 'forming a mixture comprising'}emulsifying the mixture;adding a second component of the two-component poly(urea-formaldehyde) precursor system to the emulsified mixture; andmaintaining 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.2. The method of claim 1 , where the core liquid is selected from the group consisting of a polymerizer and an activator for a polymerizer.3. The method of claim 1 , where the polyurethane precursor system comprises a polyisocyanate and a first polyol;the first component of the two-component poly(urea-formaldehyde) precursor system comprises urea, a base, a second polyol and an anhydride; andthe second component of the two-component poly(urea-formaldehyde) precursor system comprises formaldehyde.4. The method of claim 3 , where the first and second polyol are identical.5. The method of claim 1 , where the solvent comprises ...

Подробнее
Номер записи: 5
30-05-2013 дата публикации

METHOD OF PRODUCING NANO- AND MICROCAPSULES OF SPIDER SILK PROTEIN

Номер: US20130136779A1
Автор: Bausch Andreas, Hermanson Kevin, Huemmerich Daniel, Scheibel Thomas
Принадлежит: AMSILK GMBH

The present invention is directed to a method of producing nano- and microcapsules from spider silk proteins The invention is further directed to nano- or microcapsules obtainable by this method as well as pharmaceutical, cosmetical and food compositions containing same. 1. A nanocapsule of spider silk proteins , wherein the spider silk proteins form a polymer network that encapsulates an emulsion droplet.2. The nanocapsule of spider silk proteins of claim 1 , wherein said nanocapsule has a wall.3. The nanocapsule of spider silk proteins of claim 2 , wherein the wall thickness of said nanocapsule is between 5 and 100 nm.4. The nanocapsule of spider silk proteins of claim 1 , wherein the spider silk proteins comprise 5 to 50 repeat units claim 1 , wherein the repeat unit is selected from the group consisting of the amino acid sequence according to SEQ ID NO: 3 claim 1 , the amino acid sequence according to SEQ ID NO: 4 claim 1 , and the amino acid sequence according to SEQ ID NO: 5.5. The nanocapsule of spider silk proteins of claim 1 , wherein the spider silk proteins are selected from the group consisting of C claim 1 , C claim 1 , (AQ) claim 1 , (AQ) claim 1 , (QAQ)and (QAQ) claim 1 , wherein C represents the amino acid sequence according to SEQ ID NO: 5 claim 1 , A represents the amino acid sequence according to SEQ ID NO: 3 and Q represents the amino acid sequence according to SEQ ID NO: 4.6. The nanocapsule of spider silk proteins of claim 1 , wherein the nanocapsule comprises pharmaceutical agents claim 1 , cosmetical agents claim 1 , foodstuffs or food additives.7. The nanocapsule of spider silk proteins of claim 6 , wherein the pharmaceutical agents claim 6 , cosmetical agents claim 6 , foodstuffs or food additives are encapsulated in the nanocapsule.8. The nanocapsule of spider silk proteins of claim 6 , wherein the nanocapsule is coated by the pharmaceutical agents claim 6 , cosmetical agents claim 6 , foodstuffs or food additives.9. A microcapsule of ...

Подробнее
Номер записи: 6
30-05-2013 дата публикации

Microcapsules and production thereof

Номер: US20130137626A1
Автор: Daniel Mues, Klaus Last
Принадлежит: Follmann and Co Gesellschaft fur Chemie Werkstoffe und Verfahrenstechnik mbH and Co KG

The invention relates to microcapsules, the capsule walls of which comprise a resin that can be obtained by reacting a) at least one compound selected from the group consisting of a1) amines and a2) aromatic or heteroaromatic compounds which are unsubstituted or substituted with one or more substituents from the group consisting of C 1 -C 20 -alkyl, OH, OR, COOH, SH, SR, NHCOR, OCOR, halogen, or an aromatic compound, where R is a C 1 -C 10 -alkyl group, with b) at least one aldehydic component that contains at least two carbons atoms per molecule, in the presence of c) at least one copolymer which contains units of 2-acrylamido-2-methylpropane sulphonic acid or salts (AMPS) thereof and/or 2-acrylamido-2-methylpropane phosphonic acid or salts (AMPP) thereof and units of one or more (meth)acrylates.

Подробнее
Номер записи: 7
27-06-2013 дата публикации

Porous Metal Oxide Particles and Their Methods of Synthesis

Номер: US20130164536A1
Автор: Chen Fanglin, Liu Qiang
Принадлежит: UNIVERSITY OF SOUTH CAROLINA

Methods are generally disclosed for synthesis of porous particles from a solution formed from a leaving agent, a surfactant, and a soluble metal salt in a solvent. The surfactant congregates to form a nanoparticle core such that the metal salt forms about the nanoparticle core to form a plurality of nanoparticles. The solution is heated such that the leaving agent forms gas bubbles in the solution, and the plurality of nanoparticles congregate about the gas bubbles to form a porous particle. The porous particles are also generally disclosed and can include a particle shell formed about a core to define an average diameter from about 0.5 μm to about 50 μm. The particle shell can be formed from a plurality of nanoparticles having an average diameter of from about 1 nm to about 50 nm and defined by a metal salt formed about a surfactant core. 1. A porous particle comprising a particle shell formed about a core to define an average diameter from about 0.5 μm to about 50 μm , wherein particle shell comprises a plurality of nanoparticles having an average diameter of from about 1 nm to about 50 nm , wherein the nanoparticles are defined by a metal salt formed about a surfactant core , and wherein the surfactant core comprises a surfactant molecule having a hydrophobic tail and a hydrophilic head.2. The porous particle of claim 1 , wherein the surfactant comprises a block copolymer.3. The porous particle of claim 2 , wherein the surfactant comprises poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol).4. The porous particle of claim 1 , wherein the metal salt comprises a metal oxide.5. The porous particle of claim 1 , wherein the metal salt comprises a metal nitrate.6. The porous particle of claim 1 , wherein the metal salt comprises a metal acetate.7. The porous particle of claim 6 , wherein the metal salt comprises a metal ion formed from cobalt claim 6 , cerium claim 6 , strontium claim 6 , iron claim 6 , samaria claim 6 , lanthanum claim 6 , ...

Подробнее
Номер записи: 8
15-08-2013 дата публикации

"NANOPARTICLES FOR THE ENCAPSULATION OF COMPOUNDS, PREPARATION THEREOF AND USE OF SAME"

Номер: US20130209530A1
Автор: AGÜEROS BAZO Maite, Esparza Catalán Irene, GONZÁLEZ FERRERO Carolina, GONZÁLEZ NAVARRO Carlos Javier, IRACHE GARRETA Juan Manuel, ROMO HUALDE Ana
Принадлежит:

The present invention relates to nanoparticles for encapsulating compounds, the preparation and uses thereof, comprising a casein matrix, a basic amino acid and a metal selected from a divalent metal, a trivalent metal and combinations thereof. Said nanoparticles can encapsulate a water soluble or fat soluble biologically active compound. The invention is applicable in the food, pharmaceutical and cosmetic sectors and in the nanotechnology sector. 1. A nanoparticle comprising a casein matrix , a basic amino acid and a metal selected from a divalent metal , a trivalent metal and combinations thereof.2. The nanoparticle according to claim 1 , wherein said basic amino acid is selected from the group consisting of arginine claim 1 , lysine claim 1 , histidine claim 1 , and mixtures thereof.3. The nanoparticle according to claim 1 , wherein said divalent metal is selected from the group consisting of calcium claim 1 , magnesium claim 1 , zinc claim 1 , iron in divalent form claim 1 , and combinations thereof claim 1 , preferably calcium.4. The nanoparticle according to claim 1 , further comprising a biologically active compound.57.-. (canceled)8. A process for producing nanoparticles comprising a casein matrix claim 1 , a basic amino acid and a metal selected from a divalent metal claim 1 , a trivalent metal and combinations thereof claim 1 , which comprises:a) preparing an aqueous solution containing a source of casein and a basic amino acid; andb) adding an aqueous solution of a metal selected from a divalent metal, a trivalent metal and combinations thereof to the solution of step a).9. A process for producing a nanoparticle comprising a casein matrix claim 1 , a basic amino acid claim 1 , a metal selected from a divalent metal claim 1 , a trivalent metal claim 1 , and combinations thereof and a biologically active compound claim 1 , which comprises:a) mixing (i) an aqueous solution containing a source of casein and a first basic amino acid with (ii) a solution ...

Подробнее
Номер записи: 9
22-08-2013 дата публикации

NANOCAPSULES CONTAINING MICROEMULSIONS

Номер: US20130216596A1
Автор: Delgado Gonzalez Raquel, Fernández Botello Alfonso, Viladot Petit Josep LLuis
Принадлежит: LIPOTEC, S.A.

Delivery system based on polymeric nanocapsules which contain microemulsions, and their use in the preparation of pharmaceutical, cosmetic and/or alimentary compositions. 1. A Polymerically coated nanocapsules which contain microemulsions of water in liquid lipids and which comprise at least one hydrophilic active ingredient dissolved in the internal aqueous phase and wherein the polymeric coating is a complex coacervate.2. The nanocapsules according to claim 1 , wherein the liquid lipids are selected from the group formed by vegetable oils claim 1 , soybean oil claim 1 , sunflower oil claim 1 , corn oil claim 1 , olive oil claim 1 , palm oil claim 1 , cottonseed oil claim 1 , colza oil claim 1 , peanut oil claim 1 , coconut oil claim 1 , castor oil claim 1 , linseed oil claim 1 , borage oil claim 1 , evening primrose oil claim 1 , marine oils claim 1 , fish oils claim 1 , algae oils claim 1 , oils derived from petroleum claim 1 , mineral oil claim 1 , liquid paraffin claim 1 , vaseline claim 1 , short-chain fatty alcohols claim 1 , medium-chain aliphatic branched fatty alcohols claim 1 , fatty acid esters with short-chain alcohols claim 1 , isopropyl myristate claim 1 , isopropyl palmitate claim 1 , isopropyl stearate claim 1 , dibutyl adipate claim 1 , medium-chain triglycerides claim 1 , capric and caprylic triglycerides claim 1 , C12-C16 octanoates claim 1 , fatty alcohol ethers claim 1 , dioctyl ether and/or mixtures thereof.3. The nanocapsules according to claim 1 , wherein the polymer of the coating is selected from the group formed by proteins claim 1 , polysaccharides claim 1 , polyesters claim 1 , polyacrylates claim 1 , polycyanoacrylates claim 1 , copolymers and/or mixtures thereof.4. The nanocapsules according to claim 3 , wherein the polymer of the coating is selected from the group formed by gelatin claim 3 , albumin claim 3 , soy protein claim 3 , pea protein claim 3 , broad bean protein claim 3 , potato protein claim 3 , wheat protein claim 3 , whey ...

Подробнее
Номер записи: 10
19-09-2013 дата публикации

ENCAPSULATED SOLID HYDROPHILIC PARTICLES

Номер: US20130245153A1
Автор: SCHWANTES Todd Arlin
Принадлежит:

A process of forming microcapsules is described. The microcapsule population is formed by providing an anionic or cationic, solid hydrophilic core material; providing an oil continuous phase, the oil continuous phase comprising one or more esters with chain length up to about 18 carbons. Emulsification is achieved by subjecting the mixture to high shear agitation and heating the mixture for a time sufficient to enable acid or amine acrylate or methacrylate and multifunctional acrylate or methacrylate to form a prepolymer which migrates to the anionic or cationic solid hydrophilic material, thereby forming prepolymers adhered to the hydrophilic core materials. Temperature is held or heating continued for a time sufficient to enable the prepolymer to flow onto and coalesce into a continuous film surface coating on the hydrophilic core material. Heating is carried out or light exposure or both for a time and temperature sufficient to cross link the prepolymers. 1. A process of forming a population of microcapsules comprising a solid hydrophilic core material and a wall material at least partially surrounding the core material , the microcapsule population being formed by:providing particles of a solid hydrophilic core material; forming a mixture by:', 'adding an oil soluble or dispersible amine acrylate or methacrylate;', 'adding a multifunctional acrylate or methacrylate monomer or oligomer;', 'adding an acid and an initiator;, 'providing an oil continuous phase which is low boiling and preferably nonflammable, the oil continuous phase comprising one or more hydrocarbons with chain length up to about 18 carbons;'}optionally adding a surfactant;dispersing the mixture by subjecting the mixture to agitation; heating the mixture for a time sufficient to enable the amine acrylate or methacrylate and the multifunctional acrylate or methacrylate to form a cationic prepolymer;dispersing the solid hydrophilic material in the oil continuous phase whereby the cationic prepolymer ...

Подробнее
Номер записи: 11
09-01-2014 дата публикации

SERIES OF CAPSULES COMPRISING AT LEAST ONE DROP OF INTERNAL PHASE IN A DROP OF INTERMEDIATE PHASE AND MANUFACTURING METHOD THEREOF

Номер: US20140011033A1
Автор: Carreras Enric Santanach, Pafumi Yan
Принадлежит: CAPSUM

Each capsule comprises a liquid core () and a gelled shell () comprising a gelled polyelectrolyte completely encapsulating the liquid core () at the periphery thereof. The gelled shell () is suitable for retaining the liquid core () when the capsule () is immersed in a gas. 1. A series of capsules , each capsule being of the type comprising:a liquid core,a gelled shell comprising a gelled polyelectrolyte completely encapsulating the liquid core at the periphery thereof, the gelled shell being suitable for retaining the liquid core when the capsule is immersed in a gas;wherein the liquid core comprises an intermediate drop of an intermediate phase, the intermediate phase being placed in contact with the gelled shell, and at least one internal drop of an internal phase placed in the intermediate drop, the ratio of the volume of the core to the volume of the gelled shell being greater than 2.2. A series of capsules according to claim 1 , wherein the ratio of the volume of the core to the volume of the gelled shell is between 5 and 10.3. A series of capsules according to claim 1 , wherein the thickness of the gelled shell is less than 500 microns.4. A series of capsules according to claim 1 , wherein each internal drop is placed completely away from the gelled shell claim 1 , the intermediate phase being interposed between the or each internal drop and the gelled shell.5. A series of capsules according to claim 1 , wherein the or each internal drop has a volume greater than 0.5% of the volume of the core.6. A series of capsules according to claim 1 , wherein the maximum transverse dimension of the or each internal drop is greater than 150 micrometres.7. A series of capsules according to claim 1 , wherein each capsule comprises at least two internal macroscopic drops disposed in the intermediate drop claim 1 , each internal macroscopic drop comprising an internal phase.8. A series of capsules according to claim 7 , wherein each capsule comprises at least two internal ...

Подробнее
Номер записи: 12
07-01-2021 дата публикации

HOLLOW PARTICLES AND MANUFACTURING METHOD THEREOF, PORE FORMING MATERIAL, PARTICLES FOR COSMETICS, AND WEIGHT REDUCING MATERIAL

Номер: US20210001299A1
Автор: HATTA Masahiro
Принадлежит: FUJIFILM Corporation

According to an embodiment of the present invention, provided are hollow particles which have a wall portion containing polyurethane or polyurea, have an internal porous structure, and have a plurality of opening spaces blocked by the wall portion in an outermost portion of the porous structure, and a manufacturing method thereof, and a pore forming material, particles for cosmetics, and a weight reducing material. 1. Hollow particles which have a wall portion containing polyurethane or polyurea , have an internal porous structure , and have a plurality of opening spaces blocked by the wall portion in an outermost portion of the porous structure.2. The hollow particles according to claim 1 ,wherein the particles have a void volume of 10% to 90%.3. The hollow particles according to claim 1 ,wherein the particles have a spherical particle shape.4. The hollow particles according to claim 1 ,wherein the particles have a volume-based median diameter of 0.1 μm to 500 μm.5. A pore forming material comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hollow particles according to .'}6. The pore forming material according to claim 5 ,wherein the material is used for manufacturing porous ceramics or a porous resin.7. Particles for cosmetics which have oil absorbability or water absorbability claim 5 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hollow particles according to .'}8. A weight reducing material comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hollow particles according to .'}9. A hollow particle manufacturing method comprising:dispersing an oil phase containing a polyfunctional isocyanate compound, a compound having a boiling point of 90° C. to 150° C., and at least one of a polyol or a polyamine in a water phase to prepare a dispersion liquid;heat-treating the dispersion liquid to polymerize at least the polyfunctional isocyanate compound, thereby forming a wall portion, and obtaining particles encapsulating the ...

Подробнее
Номер записи: 13
04-01-2018 дата публикации

LIQUID-CORE CAPSULES COMPRISING NON-CROSSLINKED ALGINATE

Номер: US20180001291A1
Автор: DAGAN Orit, NUSSINOVITCH Amos
Принадлежит: YISSUM Research Development Company of the Hebrew University of Jerusalem LTD.

Provided are hydrocolloid core-shell capsules including a liquid core including a non-crosslinked alginate solution and a solid or semi-solid shell including a hydrocolloid other than alginate crosslinked with metal ions, which do not crosslink alginate. Further provided is a method for the preparation of the liquid-core capsules including non-crosslinked alginate. The subject matter further provides the use of the capsules, inter alia, in the water treatment technology. 140.-. (canceled)41. A hydrocolloid core-shell capsule comprising:a liquid core comprising a non-crosslinked alginate solution; anda solid or semi-solid shell comprising a hydrocolloid other than alginate crosslinked with metal ions, which do not crosslink alginate.42. The capsule according to claim 41 , wherein the metal ions are selected from the group consisting of magnesium ions claim 41 , potassium ions and sodium ions.43. The capsule according to claim 41 , wherein the concentration of the alginate solution ranges from about 1% (w/w) to about 10% (w/w).44. The capsule according to claim 41 , wherein the alginate solution has a concentration of calcium ions that is lower than about 0.01M.45. The capsule according to claim 41 , wherein the shell hydrocolloid is selected from gellan or k-carrageenan.46. The capsule according to claim 42 , wherein the concentration of magnesium ions claim 42 , which crosslink the shell hydrocolloid ranges from about 0.075 mM/g(hydrocolloid) to about 0.5 mM/g(hydrocolloid).47. The capsule according to claim 41 , wherein the shell further comprises at least one surfactant selected from the group consisting of lecithin claim 41 , sultaines CHAPS claim 41 , cocamidopropyl hydroxysultaine claim 41 , cocamidopropyl betaine claim 41 , phosphatidylserine claim 41 , phosphatidylethanolamine claim 41 , phosphatidylcholine claim 41 , sphingomyelin and combinations thereof.48. The capsule according to claim 41 , wherein the shell further comprises a polycation selected from ...

Подробнее
Номер записи: 14
07-01-2021 дата публикации

MICROSPHERE-BASED INSULATING MATERIALS FOR USE IN VACUUM INSULATED STRUCTURES

Номер: US20210002162A1
Автор: Deka Lakshya J., Ernat Nicole M., NIGAM ASHISH, Roy Shayta
Принадлежит: WHIRLPOOL CORPORATION

A low-density insulating material for use in a vacuum insulated structure for an appliance includes a plurality of microspheres that includes a plurality of leached microspheres. Each leached microsphere has an outer wall and an interior volume. The outer wall has a hole that extends through the outer wall and to the interior volume. A binder engages outer surfaces of the plurality of leached microspheres, wherein the binder cooperates with the plurality of leached microspheres to form at least one microsphere aggregate. The interior volume of each leached microsphere defines an insulating space that includes an insulating gas. The insulating space of each leached microsphere is at least partially defined by the binder. 147-. (canceled)48. A low-density insulating material for use in a vacuum insulated structure for an appliance , the low-density insulating material comprising:a plurality of microspheres that includes a plurality of leached microspheres, each leached microsphere having an outer wall and an interior volume, wherein the outer wall has a hole that extends through the outer wall and to the interior volume; and the interior volume of each leached microsphere defines an insulating space that includes an insulating gas; and', 'the insulating space of each leached microsphere is at least partially defined by the binder., 'a binder that engages outer surfaces of the plurality of leached microspheres, wherein the binder cooperates with the plurality of leached microspheres to form at least one microsphere aggregate; wherein'}49. The low-density insulating material of claim 48 , wherein the binder engages the outer surface of each leached microsphere claim 48 , wherein the binder is disposed within a portion of the holes of the plurality of leached microspheres.50. The low-density insulating material of claim 48 , wherein the insulating gas includes at least one of carbon dioxide claim 48 , argon claim 48 , xenon claim 48 , krypton and neon.51. The low-density ...

Подробнее
Номер записи: 15
02-01-2020 дата публикации

Process

Номер: US20200002651A1
Автор: Bernard Julien, CHARLOT Aurelia, FLEURY ETIENNE, SALLET Pauline
Принадлежит:

A method of providing a modifier on the surface of an active-containing core-shell aminoplast microcapsule, including the covalent attachment of the modifier to the capsule shell surface by means of a coupling compound capable of covalent bonding to both shell and modifier by means of epoxy groups on the coupling compound. The method is especially useful for enhancing the substantiveness to fabrics of fragrance microcapsules added to laundry products. 1. A method of providing a modifier on the surface of an active-containing core-shell aminoplast microcapsule , comprising the covalent attachment of the modifier to the capsule shell surface by means of a coupling compound capable of covalent bonding to both shell and modifier by means of epoxy groups on the coupling compound.2. The method according to claim 1 , in which the shell is of melamine-formaldehyde resin.3. The method according to claim 1 , in which the modifier is selected from a polysaccharide and an enzyme.4. The method according to claim 3 , in which the enzyme is a lipase.5. The method according to claim 1 , in which the coupling compound is poly(ethylene glycol) diglycidyl ether having an Mof from 300-10 claim 1 ,000.6. The method according to claim 1 , in which the coupling compound is glycidyl methacrylate.7. The method according to claim 6 , in which the epoxy group of the glycidyl methacrylate is first reacted with the aminoplast of the shell claim 6 , and free-radical addition polymerisation is then initiated with other glycidyl methacrylate molecules claim 6 , to provide a plurality of epoxy groups.8. The method according to claim 1 , in which the coupling compound is first attached covalently to the shell claim 1 , and subsequently is covalently attached to the modifier.9. The method according to claim 1 , in which the coupling compound is first attached covalently to the modifier claim 1 , and subsequently is covalently attached to the shell.10. The method according to in which the modifier is ...

Подробнее
Номер записи: 16
14-01-2021 дата публикации

METHOD FOR PREPARING PARTICLES COMPRISING METAL OXIDE COATING AND PARTICLES WITH METAL OXIDE COATING

Номер: US20210007996A1
Автор: Abu-Reziq Raed, Bar-Simantov Haim, Bilman Nissim, Sertchook Hanan, Shapiro Leora, Toledano Ofer
Принадлежит: SOL-GEL TECHNOLOGIES LTD.

The invention relates to a process for coating a solid, water-insoluble particulate matter, with a metal oxide comprising: (a) contacting the solid, water-insoluble particulate matter with an ionic additive and an aqueous medium to obtain a dispersion of said particulate matter having positive charges on its surface; (b) subjecting the particulate matter to a coating procedure comprising precipitating a metal oxide salt onto the surface of the particulate matter to form a metal oxide layer thereon to thereby obtain particulate matter coated by a metal oxide coating layer; (c) repeating step (b) at least 4 more times; and (d) aging said coating layer. The invention further relates to particles comprising a particulate matter coated by a metal oxide layer, to a use of the particles for topical administration, and to a method for preventing, reducing, or eliminating pests at a locus, using the particles. 1. Particles comprising solid benzoyl peroxide particulate matter encapsulated by a metal oxide coating , wherein the metal oxide coating comprises four or more layers; whereinhe outermost portion of the metal oxide coating being substantially free of benzoyl peroxide; wherein the weight ratio of the metal oxide to said benzoyl peroxide, is in the range of 1:99 to 40:60;the coated particles having leaching of less than 5% w/w, of the benzoyl peroxide in the composition until administered to the skin;the coated particles release an effective amount of benzoyl peroxide when the composition is in contact with the surface; andthe time for releasing 50% w/w of the benzoyl peroxide being at least two-fold longer when in coated form than the time to dissolution of benzoyl peroxide particles of the same particle size diameter when in free form under identical conditions.2. The particles according to claim 1 , wherein said metal oxide coating has a thickness of 0.1-10 micron.3. Particles comprising solid benzoyl peroxide particulate matter encapsulated by a metal oxide coating ...

Подробнее
Номер записи: 17
27-01-2022 дата публикации

Coacervation process to encapsulate organic pigments that show improved weather fastness

Номер: US20220025186A1
Автор: Benjamin Rene Harald STOMPS, Gabriela Catanoiu, Jennifer Schwarz, Simon ABEN, Udo Franz HASELWANDER
Принадлежит: COLORANTS INTERNATIONAL LTD

In a first aspect, the present invention relates to an encapsulated organic pigment comprising of an organic pigment as core material and a material capable of forming microcapsules as shell material, wherein the particle size of the encapsulated pigment (core-shell-product) is in the range from 50 nm to 500 μm and the particle size distribution D 90 is <100 μm.

Подробнее
Номер записи: 18
11-01-2018 дата публикации

CAPSULES HAVING SURFACTANT TETHERED OUTER SHELLS AND METHODS FOR MAKING SAME

Номер: US20180009996A1
Автор: LENTZ Carl M, RYAN Kayla L. M.
Принадлежит:

Microcapsules are disclosed that have a core composition encapsulated within a polymer wall, and an inorganic shell connected to an exterior surface of the polymer wall by a surfactant. The inorganic shell has a cation attracted to the surfactant and an anion or anion equivalent chemically bonded to the cation to form the shell or has the metal portion of a metal-containing compound attracted to the surfactant to form the shell. The shell may comprise a Ca, Mg, or Ag metal compound. The shell may be a graphene oxide-metal compound. 1. A capsule comprising:a core composition encapsulated within a polymer wall; andan inorganic shell connected to an exterior surface of the polymer wall by a surfactant, the inorganic shell comprising a cation attracted to the surfactant and an anion or anion equivalent chemically bonded to the cation or a metal-containing compound attracted to the surfactant;wherein the surfactant comprises an ionic surfactant.2. The capsule of claim 1 , wherein the core comprises a phase change material.3. The capsule of claim 1 , wherein the cation is selected from the group consisting of calcium ions claim 1 , silver ions claim 1 , magnesium ions claim 1 , iron ions claim 1 , copper ions claim 1 , and cobalt ions claim 1 , and combinations thereof.4. The capsule of claim 3 , wherein the cation is a silver ion claim 3 , and the inorganic shell has antibacterial and antifungal growth properties.5. The capsule of claim 3 , wherein the inorganic shell provides the capsule with a flame retardant property that reduces the percent of total mass burned claim 3 , compared to the capsule without the shell claim 3 , by at least 16% mass.6. The capsule of claim 5 , wherein the inorganic shell reduces the percent of total mass burned by at least 40%.7. The capsule of claim 2 , wherein the full or partial inorganic shell comprises a cation and an anion claim 2 , and is selected from the group consisting of CO claim 2 , HPO claim 2 , PO claim 2 , SO claim 2 , SO ...

Подробнее
Номер записи: 19
11-01-2018 дата публикации

MICROCAPSULES HAVING DUAL REAGENTS SEPARATED BY THE CAPSULE WALL AND METHODS FOR MAKING SAME

Номер: US20180010013A1
Автор: Lentz Carl M., RYAN Kayla L. M.
Принадлежит:

Ruptureable, dual reagent mono-capsules are disclosed that have a core composition, which includes a first reagent, encapsulated within a polymer wall, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a second reagent that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the first reagent and the second reagent chemically react with one another to form a reaction product. 1. A ruptureable capsule comprising:a core composition encapsulated within a polymer wall, the core composition comprising a first reagent; anda shell connected to an exterior surface of the polymer wall by a surfactant, the shell comprising a second reagent attracted to the surfactant by a chemical electrostatic interaction;wherein, upon rupture of the polymer wall, the first reagent and the second reagent chemically react with one another to form a reaction product.2. The capsule of claim 1 , wherein the reaction product seals the rupture in the capsule or seals a feature of a surface upon which the capsules are disposed.3. The capsule of claim 1 , wherein the second reagent comprises a mineral containing a metal that is available for chemical attraction or bonding to the surfactant claim 1 , and the first reagent is a carboxylic acid.4. The capsule of claim 3 , wherein the metal is selected from the group consisting of aluminum calcium claim 3 , silver claim 3 , magnesium claim 3 , iron claim 3 , copper claim 3 , and cobalt claim 3 , and combinations thereof.5. The capsule of claim 3 , wherein the metal is an aluminum.6. The capsules of claim 1 , wherein the second reagent is an inorganic compound and the shell connected to the exterior surface of the polymer wall by the surfactant is crystalline.7. The capsule of claim 6 , wherein the core composition comprises a natural oil claim 6 , and the inorganic compound catalyzes a reaction of the natural oil.8. ...

Подробнее
Номер записи: 20
14-01-2021 дата публикации

WATER RESISTANT VOIDED POLYMER PARTICLES

Номер: US20210009816A1
Автор: Andes Keith J., Boudreaux Matthew F., Devonport Wayne, Liu Lily
Принадлежит:

Latex emulsions and a process of making the same that incorporates voided latex particles having a core with a hydrophilic component; at least one intermediate shell with, as polymerized units, one or more hydrophilic monoethylenically unsaturated monomer, one or more nonionic monoethylenically unsaturated monomer, or mixtures thereof; an outer shell formed of a polymer having a Tg of at least 60? C; and a surface treatment applied to the outer shell in which a plurality of silicone oligomers with reactive functional groups are cross-linked with one another in order to provide a cross-linked outer surface. The core and the at least one intermediate shell are contacted with a swelling agent in the presence of less than 0.5% monomer based on the overall weight of the voided latex particles. In addition, one or more of the core, the intermediate shell, or the outer shell includes a surfactant. 1. Hollow or voided latex particles comprising:a core comprising a hydrophilic component;at least one intermediate layer comprising, as polymerized units, one or more hydrophilic monoetheylenically unsaturated monomer, one or more nonionic monoethylenically unsaturated monomer, or mixtures thereof;{'sub': 'g', 'an outer shell comprising a polymer having a Tof at least 60° C.; and'}a surface treatment applied to the outer shell comprising a plurality of silicone monomers, oligomers and/or polymers having polymerizable or cross-linkable functional groups, the functional groups being cross-linked with one another in order to provide a cross-linked outer surface;wherein the core and the at least one intermediate layer are contacted with a swelling agent in the presence of less than 0.5% monomer based on the overall weight of the voided latex particles,wherein one or more of the core, the intermediate layer, or the outer shell includes sodium dodecylbenzene sulfonate, and optionally other surfactants.2. The hollow or voided particles of claim 1 , wherein the particles further comprise ...

Подробнее
Номер записи: 21
10-01-2019 дата публикации

QUANTUM DOT, MANUFACTURING METHOD OF THE DOT, AND COMPACT, SHEET MEMBER, WAVELENGTH CONVERSION MEMBER AND LIGHT EMITTING APPARATUS USING THE QUANTUM DOT

Номер: US20190010396A1
Автор: KANAUMI Eiichi, MIYANAGA Akiharu, NAGENO Yoshikazu
Принадлежит: NS MATERIALS INC.

A quantum dot has a property that, when subjected to a GC-MS qualitative analysis at 350° C., octadecene (ODE) is present while oleylamine (OLA) is absent. A light emitting apparatus has a fluorescent layer covering and disposed immediately above a light emitting side of a light emitting device. The fluorescent layer, which is disposed immediately above the light emitting device, is formed of a resin with quantum dots dispersed therein. Deteriorations of light emission intensities at respective RGB peak wavelengths of the light emitting device after light emission for 1000 hours at 85° C. are all within 30% of a light emission intensity of the light emitting device before the light emission. Black discoloration caused by the deteriorations of the light emission intensities at the respective RGB peak wavelengths of the light emitting device does not occur in the resin. 1. A quantum dot having a property that , when subjected to a GC-MS qualitative analysis at 350° C. , octadecene (ODE) is present while oleylamine (OLA) is absent.2. A light emitting apparatus having a fluorescent layer covering and disposed immediately above a light emitting side of a light emitting device ,wherein the fluorescent layer, which is disposed immediately above the light emitting device, is formed of a resin with quantum dots dispersed therein,wherein deteriorations of light emission intensities at respective RGB peak wavelengths of the light emitting device after light emission for 1000 hours at 85° C. are all within 30% of a light emission intensity of the light emitting device before the light emission, andwherein black discoloration caused by the deteriorations of the light emission intensities at the respective RGB peak wavelengths of the light emitting device does not occur in the resin. The present application is a continuation of U.S. patent application Ser. No. 15/302,048, filed Oct. 5, 2016, which is a national stage entry of International Pat. Appl. No. PCT/JP2015/060612, filed ...

Подробнее
Номер записи: 22
18-01-2018 дата публикации

Methods of Performing Brachytherapy

Номер: US20180015188A1
Автор: HAO Yaowu, MOEENDARBARI Sina, Sun Xiankai
Принадлежит:

In one aspect, radioactive nanoparticles are described herein. In some embodiments, a radioactive nanoparticle described herein comprises a metal nanoparticle core, an outer metal shell disposed over the metal nanoparticle core, and a metallic radioisotope disposed within the metal nanoparticle core or within the outer metal shell. In some cases, the radioactive nanoparticle has a size of about 30-500 nm in three dimensions. In addition, in some embodiments, the radioactive nanoparticle further comprises an inner metal shell disposed between the metal nanoparticle core and the outer metal shell. The metal nanoparticle core, outer metal shell, and inner metal shell of the radioactive nanoparticle can have various metallic compositions. 1. A radioactive nanoparticle comprising:a metal nanoparticle core;an outer metal shell disposed over the metal nanoparticle core; anda metallic radioisotope disposed within the metal nanoparticle core or within the outer metal shell,wherein the radioactive nanoparticle has a size of about 30-500 nm in three dimensions.2. The radioactive nanoparticle of claim 1 , wherein the radioactive nanoparticle has a size of about 80-200 nm in three dimensions.3. The radioactive nanoparticle of further comprising an inner metal shell disposed between the metal nanoparticle core and the outer metal shell.4. The radioactive nanoparticle of claim 3 , wherein the inner metal shell is formed from a metal having a lower reduction potential than a metal of the outer metal shell.5. The radioactive nanoparticle of claim 1 , wherein the metal nanoparticle core and the outer metal shell are formed from the same metal or combination of metals.6. The radioactive nanoparticle of claim 1 , wherein the metal nanoparticle core and the outer metal shell are formed from differing metals or combinations of metals.7. The radioactive nanoparticle of claim 6 , wherein the metal nanoparticle core is formed from a metal having a higher reduction potential than a metal of ...

Подробнее
Номер записи: 23
21-01-2016 дата публикации

COMBINED MICROSPHERE MANUFACTURING APPARATUS

Номер: US20160016138A1
Автор: CHEN TSAI-FA, CHEN YEN- TING, FU HO-CHUNG, HUNG CHENG-HAN, LIN SHI-ZHEN, LIN YING-CHIEH
Принадлежит:

A main micro channel layer with a liquid leading-in plate assembled above and a microsphere leading-out plate assembled below. The liquid leading-in plate has a first and two second fluid outlets, and the microsphere leading-out plate has a microsphere outlet. The main micro channel layer has a main, two secondary, and a hybrid micro channels, the main micro channel being communicated with the first fluid outlet, the two secondary micro channels being located at two sides of the main micro channel and intersecting with the main micro channel at an intersection in a cross or a Y junction, the two secondary micro channels communicated with the two second fluid outlets, and the hybrid micro channel connected to the intersection and having an output end. A channel bottom surface of the main micro channel or the two secondary micro channels has an ascending slope to form an inclined inlet.

Подробнее
Номер записи: 24
18-01-2018 дата публикации

SELF-HEATING SEALANT OR ADHESIVE EMPLOYING MULTI-COMPARTMENT MICROCAPSULES

Номер: US20180016474A1
Автор: Campbell Eric J., Kuczynski Joseph, Splittstoesser Kevin A., Tofil Timothy J.
Принадлежит:

A self-heating sealant or adhesive may be formed using multi-compartment microcapsules dispersed within a sealant or adhesive. The multi-compartment microcapsules produce heat when subjected to a stimulus (e.g., a compressive force, a magnetic field, or combinations thereof). In some embodiments, the multi-compartment microcapsules have first and second compartments separated by an isolating structure adapted to rupture in response to the stimulus, wherein the first and second compartments contain reactants that come in contact and react to produce heat when the isolating structure ruptures. In some embodiments, the multi-compartment microcapsules are shell-in-shell microcapsules each having an inner shell contained within an outer shell, wherein the inner shell defines the isolating structure and the outer shell does not allow the heat-generating chemistry to escape the microcapsule upon rupture of the inner shell. 1. A self-heating sealant or adhesive , comprising:a sealant or adhesive;multi-compartment microcapsules distributed in the sealant or adhesive, wherein each multi-compartment microcapsule has a first compartment and a second compartment separated from each other by an isolating structure adapted to rupture in response to a stimulus, wherein the first and second compartments of each multi-compartment microcapsule contain reactants that come in contact and react to produce heat when the isolating structure ruptures.2. The self-heating sealant or adhesive as recited in claim 1 , wherein the stimulus is selected from a group consisting of a compressive force claim 1 , a magnetic field claim 1 , and combinations thereof.3. The self-heating sealant or adhesive as recited in claim 1 , wherein the sealant or adhesive is selected from a group consisting of an epoxy-based sealant claim 1 , an acrylic-based sealant claim 1 , a silicone-based sealant claim 1 , and combinations thereof.4. The self-heating sealant or adhesive as recited in claim 1 , wherein the ...

Подробнее
Номер записи: 25
16-01-2020 дата публикации

PREPARATION METHOD OF CARBON-COATED CERIA HOLLOW SPHERE

Номер: US20200016565A1
Автор: CAI Lirong, Fan Hongbo, QIU Yongfu, WU Wenjian, ZHANG Meili
Принадлежит:

The present disclosure discloses a method of preparing a carbon-coated ceria hollow sphere, which includes the following steps of: S dispersing silica in a solvent to obtain a silica dispersion; S performing a hydrothermal reaction between the silica dispersion and a cerium salt to obtain a ceria-coated silica microsphere; S coating the ceria-coated silica microsphere with a carbon source to obtain a primary product, wherein the carbon source is dopamine; S sintering the primary product under a protective gas atmosphere to obtain a carbon-coated ceria microsphere; and S etching the carbon-coated ceria microsphere by using an etchant to obtain a carbon-coated ceria hollow sphere. 1. A method of preparing a carbon-coated ceria hollow sphere , comprising the following steps of:dispersing silica in a solvent to obtain a silica dispersion;performing a hydrothermal reaction between the silica dispersion and a cerium salt to obtain a ceria-coated silica microsphere;coating the ceria-coated silica microsphere with a carbon source to obtain a primary product, wherein the carbon source is dopamine;sintering the primary product under a protective gas atmosphere to obtain a carbon-coated ceria microsphere; andetching the carbon-coated ceria microsphere by using an etchant to obtain a carbon-coated ceria hollow sphere.2. The preparation method of claim 1 , wherein the step of coating the ceria-coated silica microsphere with the carbon source to obtain the primary product is specifically:adding the ceria-coated silica microsphere into a trihydroxymethyl aminomethane buffer solution with a pH of 7.4 to 9.0; andadding dopamine under a temperature of 15° C. to 35° C. and mixing for 1 h to 24 h to obtain the primary product.3. The preparation method of claim 2 , wherein an amount ratio of the ceria-coated silica microsphere to the trihydroxymethyl aminomethane buffer solution ranges from 0.5 mg/mL to 20 mg/mL.4. The preparation method of claim 1 , wherein a mass ratio of the ceria- ...

Подробнее
Номер записи: 26
28-01-2016 дата публикации

MULTIFUNCTIONAL NANOPARTICLE DESIGNS AND APPLICATIONS

Номер: US20160022598A1
Автор: Esener Sadik C., Ortac Inanc, Trogler William, Yang Jian
Принадлежит:

Methods, structures, devices and systems are disclosed for fabricating and implementing nanoparticles with hollow core and sealable holes. In one aspect, a nanoparticle device can includes a shell structure including at least two layers including an internal layer and an external layer, the internal layer structured to enclose a hollow interior region and include one or more holes penetrating the internal layer, the external layer is of a porous material and formed around the internal layer and sealing the one or more holes, and a substance contained within the hollow interior region, the substance incapable of passing through the external layer. 1. A method of fabricating a particle , comprising:combining a core particle with one or more masking particles to form a template, wherein the one or more masking particles bind to the core particle and cover one or more regions of the surface of the core particle, each of the one or more regions corresponding to a surface area formed between each of the one or more masking particles and the core particle;forming a layer of a porous material over the template, wherein the layer forms over the surface of the core particle excluding the covered one or more regions; andremoving the template to produce a particle formed of the porous material, the particle having one or more holes extending between an interior region that is hollow and an external surface of the particle, the one or more holes having a size on the external surface substantially that of the surface area and distributed on the particle at the one or more regions.2. The method of claim 1 , further comprising functionalizing the surface of the core particle and an outer surface of the one or more masking particles claim 1 , wherein the functionalizing produces a positive charge on the surface of the core particle and a negative charge on the outer surface of the one or more masking particles.3. The method of claim 2 , wherein the one or more masking particles bind ...

Подробнее
Номер записи: 27
10-02-2022 дата публикации

MICROCAPSULES

Номер: US20220040659A1
Автор: BERTRAM Ralf, GREGOR Daniela, KLEINE-BENNE Lara-Joy, ROST Benjamin
Принадлежит:

What are proposed are microcapsules comprising 1. A microcapsule comprising(a) a core comprising at least one active, and(b) a capsule wall,wherein the capsule wall comprises at least three polymer layers and at least one of the polymer layers comprises a first phenolic resin,the first phenolic resin comprises 3% to 50% by weight of moieties that derive from at least one aromatic polyol, and at least one further polymer layer consists of a second phenolic resin, andthe second phenolic resin comprises 3% to 50% by weight of moieties that derive from at least one triphenol.2. The microcapsule as claimed in claim 1 , wherein the at least three polymer layers have an alternating structure claim 1 , and a polymer layer comprising a phenolic resin is separated in each case by a polymer layer comprising an amino resin.3. The microcapsule as claimed in claim 1 , wherein the aromatic polyol moieties derive from resorcinol.4. The microcapsule as claimed in claim 1 , wherein the triphenol moieties derive from phloroglucinol.5. The microcapsule as claimed in claim 1 , wherein the capsule wall content claim 1 , based on the slurry claim 1 , is 0.3% to 3% by weight.6. A method of producing the microcapsule as claimed in claim 1 , comprising the following steps:(a) providing a first aqueous formulation comprising at least one aldehyde or at least one polyamine precondensate;(b) providing an oil phase comprising the active to be encapsulated and at least one aromatic polyol;(c) mixing the aqueous phase with the oil phase in the presence of at least one emulsifier and/or stabilizer to form an emulsion;(d) initiating the polymerization;(e) adding at least one polyamine or a polyamine precondensate;(f) leaving the mixture to rest at 40 to 70° C. for 40 to 80 minutes;(g) adding at least one triphenol;(h) adding at least one aldehyde or at least one polyamine precondensate;(i) leaving the mixture to rest at 40 to 70° C. for 40 to 80 minutes;(j) crosslinking and curing the microcapsules ...

Подробнее
Номер записи: 28
10-02-2022 дата публикации

Compositions comprising benefit agent containing delivery particle

Номер: US20220041961A1
Автор: Conny Erna Alice Joos, Fadi Selim Chakar, Johan Smets, Linsheng Feng, Pierre Verstraete, Robert Stanley Bobnock
Принадлежит: Encapsys Inc

Compositions that include benefit agent delivery particles, the particles having a core and a shell encapsulating the core, the shell including certain acrylate-based polymers. Processes for making and using such compositions.

Подробнее
Номер записи: 29
23-01-2020 дата публикации

METHOD FOR CONTROLLING ENCAPSULATION EFFICIENCY AND BURST RELEASE OF WATER SOLUBLE MOLECULES FROM NANOPARTICLES AND MICROPARTICLES PRODUCED BY INVERSE FLASH NANOPRECIPITATION

Номер: US20200023332A1
Автор: "Prudhomme Robert K.", MARKWALTER Chester E., PAGELS Robert F.
Принадлежит:

A method for controlling the encapsulation efficiency and burst release of water soluble molecules from nanoparticle and microparticle formulations produced by the inverted Flash NanoPrecipitation (iFNP) process and subsequent processing steps is presented. The processing steps and materials used can be adjusted to tune the encapsulation efficiency and burst release of the encapsulated water-soluble material. The encapsulation efficiency of the soluble agent in the particles and the burst release of the soluble agent from the particles can be controlled by: (1) the copolymers used in the assembly or coating process, (2) the degree of crosslinking of the nanoparticle core, (3) the incorporation of small molecule or polymeric additives, and/or (4) the processing and release conditions employed. 1. A method of forming a polymer inverse nanoparticle that encapsulates a water soluble active to maximize or optimize encapsulation efficiency and/or to minimize or optimize burst fraction , comprising:dissolving the water soluble active at a concentration and a block copolymer at a concentration in an amount of a process solvent to form a process solution; andcontinuously mixing the process solution with an amount of a nonprocess solvent at a process temperature to form a first nanoparticle solution comprising polymer inverse nanoparticles having a core and a shell and a first nanoparticle solvent;wherein the block copolymer comprises a hydrophilic block and a hydrophobic block having a glass transition temperature (Tg),wherein the hydrophilic block is soluble in the process solvent and is insoluble in the nonprocess solvent,wherein the hydrophobic block is insoluble in the process solvent and is soluble in the nonprocess solvent,wherein the process solution is more polar than the nonprocess solvent,wherein the water soluble active and the hydrophilic block are in the core and the hydrophobic block is in the shell, and (a) selecting the process solvent, so that the ...

Подробнее
Номер записи: 30
24-04-2014 дата публикации

Method of encapsulation and immobilization

Номер: US20140113138A1
Автор: Lu-Kwang Ju, Uchechukwu Anozie
Принадлежит: UNIVERSITY OF AKRON

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.

Подробнее
Номер записи: 31
29-01-2015 дата публикации

Dispersion intended for encapsulating an active product and associated use

Номер: US20150030648A1
Автор: Bibette Jérôme, Delmas Thomas, Rolland Leslie, Santanach Carreras Enric
Принадлежит:

A dispersion including a plurality of bodies dispersed in a continuous phase. Each dispersed body including an internal drop formed with an internal phase miscible with the continuous phase, the internal drop () receiving an active product. Each dispersed body including, around the internal drop, a membrane formed with an intermediate phase immiscible with the continuous phase and totally surrounding the internal drop. The ratio R1 of the average thickness (e) of the membrane over the average transverse dimension (D) of the active volume delimited by the internal drop and the membrane is greater than 0.05, and is advantageously less than 0.5. The ratio R2 of the partition coefficient of the active product between the intermediate phase forming the membrane and the internal phase forming the internal drop over the viscosity of the membrane is less than 1 s·Pa. 115-. (canceled)16. A dispersion comprising a plurality of dispersed bodies in a continuous phase , each dispersed body including an internal drop formed with an internal phase , the internal drop receiving an active product , each dispersed body including , around the internal drop , a membrane formed with an intermediate phase and totally surrounding the internal drop ,wherein the ratio R1 of the average thickness of the membrane over the average transverse dimension of the active volume delimited by the internal drop and the membrane is greater than 0.05, and is advantageously less than 0.5,{'sup': −1', '−1, 'and wherein the ratio R2 of the partition coefficient of the active product between the intermediate phase forming the membrane and the internal phase forming the internal drop over the viscosity of the membrane is less than 1 s·Pa.'}17. The dispersion according to claim 16 , wherein the ratio R1 of the average thickness of the membrane over the average transverse dimension of the active volume is comprised between 0.08 and 0.45 claim 16 ,{'sup': −1', '−1, 'and in that the ratio R2 of the partition ...

Подробнее
Номер записи: 32
24-02-2022 дата публикации

LIQUID ENCAPSULATION METHOD AND COMPOSITIONS AND USES RELATED THERETO

Номер: US20220055007A1
Автор: GUNDA Naga Siva Kumar, Misra Sirshendu, Mitra Sushanta, Trinavee Kumari
Принадлежит:

Present disclosure provides a method of forming a liquid-encapsulated core material, encapsulated core material compositions, and uses thereof, where the encapsulated core material is formed by providing an interfacial fluid layered on a host fluid, and passing a core material through the interfacial fluid and into the host fluid such that the interfacial fluid forms a shell around the core material. By so encapsulating the core material, it is protected from the host fluid. 1. A method of forming an encapsulated core material , the method comprising:providing an interfacial fluid and providing a host fluid, the interfacial fluid being layered on the host fluid; andpassing a core material having sufficient kinetic energy through the interfacial fluid and into the host fluid such that the interfacial fluid forms a shell around the core material,thereby forming the encapsulated core material.2. The method of claim 1 , wherein the core material has a density ρ claim 1 , the interfacial fluid has a density ρ claim 1 , the host fluid has a density ρ claim 1 , and wherein:{'br': None, 'sub': ['2', '3', '1'], '#text': 'ρ<ρ<ρ.'}3. The method of claim 1 , wherein the core material has a density ρ claim 1 , the interfacial fluid has a density ρ claim 1 , the host fluid has a density ρ claim 1 , and wherein:{'br': None, 'sub': ['1', '2', '3'], '#text': 'ρ>ρ>ρ.'}4. The method of any one of to claim 1 , wherein providing the interfacial fluid layered on the host fluid comprises providing a volume V of the interfacial fluid.5. The method of claim 4 , wherein the volume V is selected to provide the interfacial fluid layered on the host fluid.6. The method of or claim 4 , wherein the shell has a thickness T and modifying the volume V adjusts the thickness T.7. The method of any one of to claim 4 , wherein providing the interfacial fluid layered on the host fluid comprises dispensing the interfacial fluid on top of the host fluid.8. The method of claim 7 , wherein dispensing ...

Подробнее
Номер записи: 33
06-02-2020 дата публикации

METHOD FOR PRODUCING CAPSULES COMPRISING AT LEAST ONE VOLATILE COMPOUND, AND RESULTING CAPSULES

Номер: US20200038297A1
Автор: DEMOULIN Damien, MOUSNIER Ludivine, WALTERS Jamie
Принадлежит:

The present invention relates to a process for preparing solid microcapsules comprising the following steps: 2. The method according to claim 1 , wherein the hydrophobic material(s) is/are chosen from waxes claim 1 , butters or pasty fatty substances claim 1 , and mixtures thereof.3. The method according to claim 1 , wherein the volatile lipophilic compounds are chosen from perfuming agents claim 1 , flavonoids claim 1 , polyunsaturated fatty acids claim 1 , and mixtures thereof.4. The method according to claim 1 , wherein the hydrophilic phase of C1b comprises at least one dispersing agent and at least one gelling agent.5. The method according to claim 4 , wherein the gelling agent is selected from branched polymers claim 4 , polymers of molecular weight greater than 5000 g/mol claim 4 , cellulose derivatives claim 4 , polyacrylates claim 4 , polyurethanes and their derivatives claim 4 , polyethers and their derivatives claim 4 , polyacrylamides claim 4 , polyvinylpyrrolidone (PVP) and its derivatives claim 4 , polyvinyl alcohol (PVA) and its derivatives claim 4 , poly(ethylene) glycol) claim 4 , poly(propylene glycol) and their derivatives claim 4 , polysaccharides claim 4 , protein derivatives claim 4 , fatty acid salts claim 4 , glycerol derivatives claim 4 , glycoluril derivatives claim 4 , and mixtures thereof.6. The method according to claim 4 , wherein the dispersing agent is selected from the group consisting of surfactants; polyacrylates; sugar/polysaccharide esters and fatty acid(s); polyamides; polyethers and polyesters of silicone; ethoxylated alcohols; and mixtures thereof.7. The method according to claim 1 , wherein claim 1 , when the composition C1 is a composition C1a claim 1 , step a) comprises a step of heating the hydrophobic material or materials at a temperature above T claim 1 , followed by a step of adding the lipophilic volatile compound(s) claim 1 , and a step of mixing the assembly at a temperature greater than T.8. The method according to ...

Подробнее
Номер записи: 34
18-02-2021 дата публикации

ARTICLES AND SYSTEMS INVOLVING REACTION PRODUCTS ON SURFACES AND ASSOCIATED METHODS

Номер: US20210046478A1
Автор: Damak Maher, Hyder Nasim, Varanasi Kripa K.
Принадлежит: Massachusetts Institute of Technology

Methods related to forming reaction products on surfaces are generally provided. Some methods comprise applying first and second polyelectrolytes in first and second polyelectrolyte carrier fluids to a surface. The first and second polyelectrolytes may be different, and the first and second carrier fluids may be the same or different. Some methods comprise forming a mixture of the first and second polyelectrolytes in a mixture carrier fluid that comprises the first and/or second carrier fluids. The first and second polyelectrolyte may be removed from the mixture carrier fluid to form a reaction product on the surface. In some embodiments, the mixture carrier fluid comprises a salt with a molecular weight of less than or equal to 1 kg/mol at a concentration within the mixture carrier fluid of from 0.01 M to 0.5 M. In some embodiments, the mixture carrier fluid has a turbidity of greater than or equal to 10 NTU and a viscosity of less than or equal to 1 Pa*s. 1. An article comprising: the product is formed by removing a first polyelectrolyte and a second polyelectrolyte from a mixture carrier fluid,', 'the mixture carrier fluid is formed from a first carrier fluid comprising a first polyelectrolyte and a second carrier fluid comprising a second polyelectrolyte, and', 'the mixture carrier fluid comprises a salt with a molecular weight of less than or equal to 1 kg/mol at a concentration within the mixture carrier fluid of from 0.01 M to 0.5 M., 'a product disposed on a surface, wherein2. An article comprising: the product is formed by removing a first polyelectrolyte and a second polyelectrolyte from a mixture carrier fluid,', 'the mixture carrier fluid is formed from a first carrier fluid comprising a first polyelectrolyte and a second carrier fluid comprising a second polyelectrolyte, and', 'the mixture carrier fluid has a turbidity of greater than or equal to 10 NTU and a viscosity of less than or equal to 1 Pa*s., 'a product disposed on a surface, wherein3. An ...

Подробнее
Номер записи: 35
14-02-2019 дата публикации

PROCESS FOR DRYING A SUSPENSION AT ROOM TEMPERATURE

Номер: US20190045824A1
Автор: Bouquerand Pierre-Etienne, Dardelle Gregory, Elabbadi Amal, MAIO Serge, NORMAND Valery
Принадлежит: FIRMENICH SA

The present invention relates to a new process for the preparation of powdered microcapsules encapsulating active volatile active ingredients, in particular a perfume or a flavour, said process being performed at room temperature. Powdered microcapsules obtainable by said process are also an object of the invention. Perfuming and flavouring compositions as well as consumer products comprising said capsules are also part of the invention. 1. A process for preparing a powdered microencapsulated composition comprising the steps of: (i) an oil phase comprising an active ingredient, preferably a perfume or a flavor, said oil being dispersed in', '(ii) a water phase including a water-soluble carbohydrate carrier; and', '(iii) optionally an emulsifier', 'wherein the weight ratio between the oil phase and the water is above 1;, 'a) Preparing an oil-in-water suspension containing'}b) Blending at room temperature the suspension obtained under step a) with a desiccant powder to form a free-flowing microcapsule powder, said process being characterized in that the weight difference Δ between the water sorption of the desiccant and the water sorption of the carrier, at 50% relative humidity and at 25° C., is positive;c) Optionally sifting the obtained powder to remove the excess desiccant.2. The process according to claim 1 , wherein the suspension comprises a perfume or a flavour freely dispersed in the water phase.3. The process according to claim 1 , wherein the suspension comprises a perfume or flavour oil wherein part of said oil is freely dispersed in the water phase and another part of the oil is dispersed in an encapsulated form in the water phase.4. The process according to claim 1 , wherein the suspension comprises a perfume or flavour oil wherein the oil is dispersed in an encapsulated form in the water phase.5. The process according to claim 1 , wherein the water-soluble carbohydrate carrier is present in an amount comprised between 25 and 40 wt % of the suspension.6. ...

Подробнее
Номер записи: 36
14-02-2019 дата публикации

Stimuli-responsive interpolymer complex coated hollow silica vesicles

Номер: US20190046455A1
Автор: Chee Leng Lay, Ye Liu
Принадлежит: Agency for Science Technology and Research Singapore

A porous hollow silica particle with an interpolymer complex immobilized thereon is provided. The interpolymer complex comprises a first polymer immobilized to a surface of the silica particle, and a second polymer complexed with the first polymer. Pharmaceutical compositions comprising the silica particle, and methods of forming the silica particle are also provided.

Подробнее
Номер записи: 37
25-02-2021 дата публикации

PROCESS FOR MANUFACTURING LIGHT ABSORBING POLYMER MATRIX

Номер: US20210054264A1
Автор: BERZON Ronald, Biteau John, FROMENTIN Pierre
Принадлежит:

An ophthalmic lens comprising a transparent polymer matrix and core shell nanoparticles which are dispersed in the transparent polymer matrix, wherein the core of core shell nanoparticles results from polymerization of a composition comprising nanoparticle core precursors and at least one photochromic compound, and the shell of core shell nanoparticles comprises a mineral compound. 1. An ophthalmic lens comprising a transparent polymer matrix and core shell nanoparticles which are dispersed in the transparent polymer matrix , wherein:the core of core shell nanoparticles results from polymerization of a composition comprising nanoparticle core precursors and at least one photochromic compound; andthe shell of core shell nanoparticles comprises a mineral compound.2. The ophthalmic lens according to claim 1 , wherein the photochromic compound is chosen from benzopyrans claim 1 , naphthopyrans claim 1 , spirobenzopyrans claim 1 , spironaphthopyrans claim 1 , spirobenzoxzines claim 1 , spironaphthoxazines claim 1 , fulgides or fulgimides.3. The ophthalmic lens according to claim 1 , wherein a molar absorption coefficient of the photochromic compound in a colored form is higher than 5000 L molcm.4. The ophthalmic lens according to claim 1 , wherein the amount of photochromic compound in the core-shell nanoparticles is from 0.0001 to 90 wt % based on the total weight of the core-shell nanoparticles.5. The ophthalmic lens according to claim 1 , wherein the transparent polymer matrix is chosen from a thermoplastic resin claim 1 , such as a polyamide claim 1 , polyimide claim 1 , polysulfone claim 1 , polycarbonate claim 1 , polyester claim 1 , polyethylene terephthalate claim 1 , poly(meth)acrylate) claim 1 , PMMA claim 1 , polycyclic olefin copolymer claim 1 , thermoplastic elastomers claim 1 , thermoplastic urethanes claim 1 , polycellulose triacetate or copolymers thereof claim 1 , or transparent polymer matrix is chosen from a thermosetting resin claim 1 , such as a ...

Подробнее
Номер записи: 38
26-02-2015 дата публикации

METHOD OF PRODUCING HOLLOW PARTICLES, METHOD OF PRODUCING ANTIREFLECTION COATING, AND METHOD OF PRODUCING OPTICAL ELEMENT

Номер: US20150056371A1
Автор: Kameno Yu
Принадлежит:

The present invention provides a method of producing hollow particles for reducing light scattering in an antireflection coating. This method includes synthesizing core-shell particles including a core containing an organic compound as a major component and a shell containing an inorganic-based compound as a major component in an aqueous medium, dispersing the core-shell particles in an organic solvent, and preparing hollow particles by heating the core-shell particles dispersed in the organic solvent to remove the core therefrom. 1. A method of producing hollow particles , comprising:synthesizing core-shell particles comprising a core containing an organic compound as a major component and a shell containing an inorganic-based compound as a major component in an aqueous medium;dispersing the core-shell particles in an organic solvent; andpreparing hollow particles by heating the core-shell particles dispersed in the organic solvent to remove the core therefrom,wherein the core-shell particles are heated in a sealed container in the preparation of the hollow particles, andwherein the core-shell particles are heated at a temperature of 350 to 500 degrees (Celsius) and a pressure of 4.0 to 30 MPa in the preparation of the hollow particles.23-. (canceled)4. The method of producing hollow particles according to claim 1 , wherein the core-shell particles are reacted with a hydrophobic compound before being heated in the preparation of the hollow particles.5. The method of producing hollow particles according to claim 1 , wherein the inorganic-based compound contained in the core-shell particles heated in the preparation of the hollow particles is RSiO claim 1 , wherein R is a hydrocarbon group claim 1 , y is greater than or equal to 0 and is less than or equal to 1 claim 1 , and z is greater than or equal to 1 and is less than or equal to 2.6. The method of producing hollow particles according to claim 1 , wherein the core-shell particles heated in the preparation of the ...

Подробнее
Номер записи: 39
21-02-2019 дата публикации

Core Shell Silica and Methods for the Same

Номер: US20190053992A1
Автор: Chopra Suman, Fei Lin, TANG Saide
Принадлежит: Colgate-Palmolive Company

Methods for preparing high loading core shell silica (CSS) particles, or CSS particles having a relatively greater amount of surface active silicate groups than CSS particles prepared according to conventional methods is provided. The method may include contacting silica particles with a base having a first metal ion to produce core shell silica particles. Each of the core shell silica particles may include a silica core and a silicate of the first metal ion etched on a surface of the silica core. The method may also include contacting each of the core shell silica particles having the silicate of the first metal ion with an acidic aqueous solution including a metal salt having a second metal ion to produce core shell silica particles including the silica core and a silicate of the second metal ion on the surface of the silica core. 1. A method of preparing core shell silica particles , comprising:contacting silica particles with a base comprising a first metal ion to produce core shell silica particles, each of the core shell silica particles comprising a silica core and a silicate of the first metal ion etched on a surface of the silica core; andcontacting each of the core shell silica particles comprising the silicate of the first metal ion with an acidic aqueous solution comprising a metal salt having a second metal ion to produce core shell silica particles comprising the silica core and a silicate of the second metal ion on the surface of the silica core,wherein contacting each of the core shell silica particles with the acidic aqueous solution comprises incrementally adding the core shell silica particles to the acidic aqueous solution.2. The method of claim 1 , wherein the first metal ion is a monovalent ion claim 1 , optionally a group 1 metal ion.3. The method of claim 1 , wherein the acidic aqueous solution further comprises a humectant.4. The method of claim 3 , wherein the humectant is at least one of ethanol claim 3 , polyhydric alcohol claim 3 , such ...

Подробнее
Номер записи: 40
21-02-2019 дата публикации

MICROCAPSULES HAVING DUAL REAGENTS FOR FORMING A SELF-HEALING MATERIAL SEPARATED BY THE CAPSULE WALL AND METHODS FOR MAKING SAME

Номер: US20190054441A1
Автор: Lentz Carl M., RYAN Kayla L. M.
Принадлежит: Microtek Laboratories, Inc.

Rupturable, dual reagent mono-capsules are disclosed that have a core composition, which includes a carboxylic acid, encapsulated within a phenolic resin-containing polymer wall that ruptures upon exposure to alkaline conditions over a period of time, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a mineral containing a metal that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the carboxylic acid and the mineral containing the metal chemically react with one another to form a reaction product that seals a rupture in the capsule and/or seals a feature of a surface upon which the capsules are disposed. 1. A dual reagent mono-capsule rupturable under alkaline conditions comprising:a preformed capsule comprising a core composition encapsulated within a phenolic resin-containing polymer wall, the core composition comprising a carboxylic acid;a surfactant connected to an exterior surface of the polymer wall; anda mineral containing a metal attracted to the surfactant by a chemical electrostatic interaction;wherein the phenolic resin-containing polymer wall ruptures upon exposure to alkaline conditions over a period of time and, upon rupture of the polymer wall, the carboxylic acid and the mineral containing the metal chemically react with one another to form a reaction product.2. The capsule of claim 1 , wherein the metal is selected from the group consisting of aluminum calcium claim 1 , silver claim 1 , magnesium claim 1 , iron claim 1 , copper claim 1 , and cobalt claim 1 , and combinations thereof.3. The capsule of claim 2 , wherein the metal is an aluminum.4. The capsule of claim 1 , wherein the mineral containing the metal is nano-boehmite.5. The capsules of claim 1 , wherein the mineral is in a crystalline state.6. The capsule of claim 5 , wherein the mineral containing the metal forms a discontinuous wall encapsulating ...

Подробнее
Номер записи: 41
04-03-2021 дата публикации

METHODS, SYSTEMS, AND APPARATUS FOR ENCAPSULATING A SEQUESTRATION MEDIUM

Номер: US20210060512A1
Автор: FERIC Tony, Gao Ming, Lin Qiao, Park Ah-Hyung Alissa, RIM Guanhe, Wang Dongyang, YU Wei
Принадлежит: The Trustees of Columbia University in the City of New York

An apparatus for encapsulating a material includes a first channel in fluid communication with a source of a material for encapsulation, at least one second channel in fluid communication with a source of a photopolymerizable compound, and at least one third channel in fluid communication with a source of an encapsulating fluid. Flow of the photopolymerizable compound into the first channel produces sheath flow in the first channel such that the material is within the polymerizable compound. Addition of the encapsulating fluid produces encapsulation precursors. Upon irradiation via a UV-radiation source, the photopolymerizable compound in the encapsulation precursor forms a polymer shell encapsulating the material for encapsulation. Materials such as nanoparticle organic hybrid materials (NOHMs) and a metal-organic frameworks (MOFs) can be thus encapsulated as carbon sequestration micro particles, as the polymer shell is permeable by gases such as carbon dioxide but selectively rejects other compounds such as water. 1. An apparatus for encapsulating a material comprising:a first channel in fluid communication with a source of a material for encapsulation;at least one second channel in fluid communication with a source of a photopolymerizable compound, the at least one second channel also in fluid communication with the first channel and positioned at an angle to the first channel so as to produce sheath flow in the first channel wherein the material is within the polymerizable compound;at least one third channel in fluid communication with a source of an encapsulating fluid, the at least one third channel also in fluid communication with the first channel and positioned downstream of the at least one second channel; anda UV-radiation source configured to irradiate the photopolymerizable compound to produce an encapsulated material.2. The apparatus according to claim 1 , wherein the material includes a carbon sequestration medium claim 1 , explosive compound claim 1 ...

Подробнее
Номер записи: 42
22-05-2014 дата публикации

Method and compositions for producing hydrogel capsules coated for low permeability and physical integrity

Номер: US20140137878A1
Автор: Daqing Wu, Georgios D. Karles, Shuzhong Zhuang
Принадлежит: PHILIP MORRIS USA INC

Methods and compositions for producing hydrogel capsules enveloped with at least one coating layer is disclosed. The coating formulations deposited on the surface of the capsules can improve the physical integrity and the water-retention properties of the alginate beads. The coating formulations can be sequentially applied in various combinations to obtain desirable properties, such as improved physical integrity, mechanical strength, and low permeability, that can extend the shelf-life of the capsules when incorporated into various consumer products.

Подробнее
Номер записи: 43
28-02-2019 дата публикации

METHOD FOR THE PRODUCTION OF SCENT CAPSULES WITH IMPROVED SURFACTANT STABILITY

Номер: US20190062676A1
Автор: BEGEMANN Wiebke, BEHRENS Kolja, GREGOR Daniela, OTT Patrick
Принадлежит:

The invention relates to a method for producing scent capsules with improved surfactant stability, comprising the following steps: (a) providing a scent composition containing at least one scent which has at least one functional group that can form an acid group by means of oxidation or hydrolysis, and (b) encapsulating the scent mixture, characterised in that a scent composition is used that has an acid value of no more than 5 mg KOH/g immediately before encapsulation. 1. A method for producing fragrance capsules with improved surfactant stability , comprising the following steps:(a) provision of a fragrance composition comprising at least one fragrance which has at least one functional group that is capable by oxidation or hydrolysis of forming an acid group, and(b) encapsulation of the fragrance mixture, wherein a fragrance composition is used that has an acid number immediately prior to encapsulation of at most 5 mg KOH/g.2. The method as claimed in claim 1 , wherein a fragrance composition is used that has an acid number immediately prior to encapsulation of at most 3 mg KOH/g.3. The method as claimed in claim 1 , wherein a fragrance composition is used that comprises at least one fragrance having an aldehyde claim 1 , acetal claim 1 , ester or lactone functional group.4. The method as claimed in claim 1 , wherein a fragrance composition is used that comprises at least one fragrance selected from the group consisting of(i) aliphatic aldehydes and their acetals,(ii) cycloaliphatic aldehydes,(iii) aromatic or araliphatic aldehydes,(iv) aliphatic, aromatic or araliphatic esters, and/or(v) lactones, and mixtures thereof.5. The method as claimed in claim 3 , wherein aldehydes or their acetals are used that are selected from the group consisting of hexanal; heptanal; octanal; nonanal; decanal; undecanal; dodecanal; tridecanal; 2-methyloctanal; 2-methylnonanal; (E)-2-hexenal; (Z)-4-heptenal; 2 claim 3 ,6-dimethyl-5-heptenal; 10-undecenal; (E)-4-decenal; 2-dodecenal; 2 ...

Подробнее
Номер записи: 44
11-03-2021 дата публикации

COMPOSITIONS FOR COSMETIC RAW MATERIAL AND METHODS FOR MAKING THE SAME

Номер: US20210069072A1
Автор: CHABRILLANGEAS Mathieu, EYRAUD Sonia, JIANG Yanfu, LEE Ik Joo, Lee Jae Uk, LEE Woon Jang, PARK Byung-Ho, Tachon Romain
Принадлежит: KPT LTD.

The instant invention relates to a composition for cosmetic raw material containing microcapsule containing one core, a first laminated coating surrounding the core having at least 45% in weight with respect to the total weight of a microcapsule of multilayered reflecting particles having at least a mixture of two metal oxides, and a second laminated coating surrounding the first layered coating, having at least 10% to 40% in weight of titanium dioxide with respect to the total weight of a microcapsule, wherein the multilayered reflecting particles are released from the at least one microcapsule only when the composition is applied onto a keratinic material, such as keratin fibers or skin. The invention further relates to a process for preparing the composition for cosmetic raw material containing microcapsule containing the same. 1. A composition for cosmetic raw material comprising at least one microcapsule comprising:a core,a first laminated coating surrounding said core comprising at least 45% in weight with respect to the total weight of a microcapsule of multilayered reflecting particles comprising at least a mixture of two metal oxides, and 'wherein said multilayered interference particles are released from said at least one microcapsule only when said composition is applied onto a keratinic material, such as keratin fibers or skin.', 'a second laminated coating surrounding said first layered coating, comprising at least 10% to 40% in weight of titanium dioxide with respect to the total weight of a microcapsule,'}2. The composition of claim 1 , wherein multilayered reflecting particles comprising at least one mixture of two metal oxides are nacres claim 1 , preferably selected among composite particles comprising at least one support selected from mica claim 1 , synthetic fluorphlogopite or calcium sodium borosilicate and completely or partially coated with one or more layers of at least two metal oxides selected from titanium dioxide claim 1 , iron dioxide ...

Подробнее
Номер записи: 45
08-03-2018 дата публикации

SELF-HEATING SEALANT OR ADHESIVE EMPLOYING MULTI-COMPARTMENT MICROCAPSULES

Номер: US20180066164A1
Автор: Campbell Eric J., Kuczynski Joseph, Splittstoesser Kevin A., Tofil Timothy J.
Принадлежит:

A self-heating sealant or adhesive may be formed using multi-compartment microcapsules dispersed within a sealant or adhesive. The multi-compartment microcapsules produce heat when subjected to a stimulus (e.g., a compressive force, a magnetic field, or combinations thereof). In some embodiments, the multi-compartment microcapsules have first and second compartments separated by an isolating structure adapted to rupture in response to the stimulus, wherein the first and second compartments contain reactants that come in contact and react to produce heat when the isolating structure ruptures. In some embodiments, the multi-compartment microcapsules are shell-in-shell microcapsules each having an inner shell contained within an outer shell, wherein the inner shell defines the isolating structure and the outer shell does not allow the heat-generating chemistry to escape the microcapsule upon rupture of the inner shell. 1. A method of curing a self-heating sealant or adhesive , the method comprising:providing a self-heating sealant or adhesive, wherein the self-heating sealant or adhesive comprises a sealant or adhesive and multi-compartment microcapsules distributed in the sealant or adhesive, wherein each multi-compartment microcapsule has a first compartment and a second compartment separated from each other by an isolating structure adapted to rupture in response to a stimulus, wherein the first and second compartments of each multi-compartment microcapsule contain reactants that come in contact and react to produce heat when the isolating structure ruptures;activating the self-heating sealant or adhesive by applying the stimulus in an amount sufficient to rupture the isolating structure, thereby allowing the reactants to come in contact and react to produce heat.2. The method as recited in claim 1 , wherein the stimulus is selected from a group consisting of a compressive force claim 1 , a magnetic field claim 1 , and combinations thereof.3. A method of curing a ...

Подробнее
Номер записи: 46
12-03-2015 дата публикации

Method for Preparing Stiffened Capsules

Номер: US20150072146A1
Автор: Jerome Bibette, Mathieu Goutayer
Принадлежит: Capsum SAS

The present invention relates to a method for preparing capsules comprising a liquid core, a stiffened intermediate envelope and a gelled external envelope, comprising a step of forming a multi-component liquid drop, a gelification step and a stiffening step. The present invention also relates to a method for preparing capsules comprising a liquid core and a stiffened envelope, comprising a step of forming a multi-component liquid drop, a gelification step, a stiffening step and a depolymerizing step.

Подробнее
Номер записи: 47
15-03-2018 дата публикации

CHROMIC MICROCAPSULE COMPRISING CORE SEED AND PRESSURE SENSITIVE DESTRUCTIBLE WALL LAYER, AND PREPARATION METHOD THEREFOR

Номер: US20180071177A1
Автор: JIANG Yanfu, JIN Hailan, LEE Ik Joo, Lee Jae Uk, LEE Woon Jang, Park Byung Ho
Принадлежит: KPT LTD.

The present invention provides a color-changing microcapsule composed of a core comprising an inner color layer having a color, a pressure-breakable wall layer surrounding the core, an optional outer color layer and an optional outermost layer, characterized in that said core comprises a core-seed and at least one inner color layer comprising a colorant and a binder, and said pressure-breakable wall layer comprises titanium dioxide particles and a binder. 118-. (canceled)19. A color-changing microcapsule having an average diameter of 50 μm-1500 μm and having a core shell structure , wherein said core comprises the following core seed (A) and at least one inner color layer (B) and said shell is pressure breakable wall layer (C):(A) core seeds having an average diameter of 500 nm-150 μm, no colorant, and containing sugar alcohols; more than one colorant; and', 'a binder comprising at least one wall forming material and at least one lipid based material; and, '(B) at least one inner color layer comprising titanium dioxide particles, and', 'a binder comprising at least one wall forming material and at least one lipid based material., '(C) a pressure breakable wall layer selected from 10 μm-500 μm in thickness and comprising20. The color-changing microcapsule of claim 19 , wherein said core comprises two or three of the following inner color layers claim 19 , selected from the group consisting of: at least one colorant, and', 'a binder comprising at least one wall forming material and at least one lipid based material; and, '(B-1) a first inner color layer comprising at least one colorant, and', 'a binder comprising at least one wall forming material and at least one lipid based material; and, '(B-2) a second inner color layer comprising at least one colorant, and', 'a binder comprising at least one wall forming material and at least one lipid based material;, '(B-3) a third inner color layer comprisingwherein, the above-mentioned colorants, wall-forming materials and ...

Подробнее
Номер записи: 48
15-03-2018 дата публикации

Biocompatible Cross-Linked Micro-Nano Material Used for Drug Loading and Sustained Release and Construction Method Thereof

Номер: US20180071226A1
Автор: Wan-er CHEN, Zhe Liu
Принадлежит: Wenzhou Institute of Biomaterials and Engineering

The present invention discloses a construction process of biocompatible micro-nano material which can be used for drug loading and sustained release. The constructed biomaterial is a polyacrylate-based microbubble and nanoparticle containing genipin crosslinked chitosan; using the adriamycin as model drug, the drug loading and release properties are investigated. The micro-nanoparticle material constructed by this method has improved the encapsulation efficiency and loading rate of the drug to a certain extent, which can control the in vitro release rate of the drug appropriately. The preparation process herein is simple, environmentally-friendly, free of contamination of three wastes and radiation and noises, with mild condition and low energy consumption, therefore, it is a universal process of highly biocompatible cross-linking of micro-nanoparticles.

Подробнее
Номер записи: 49
16-03-2017 дата публикации

SOLVENT EXTRACTION FROM BIODEGRADABLE MICROPARTICLES

Номер: US20170071860A1
Автор: Sebring Greg Bryden
Принадлежит: AntriaBio, Inc.

Embodiments may also include a system for reducing a solvent concentration in a plurality of microparticles. The system may include a solvent extraction tank. In the solvent extraction tank, a mixture including the plurality of microparticles and the solvent may be contacted with water to form an aqueous suspension. A first portion of the solvent may dissolve into the water of the aqueous suspension to reduce the solvent concentration in the plurality of microparticles. The system may also include a concentration unit in fluid communication with the solvent extraction tank. The concentration unit may further reduce the solvent concentration in the plurality of microparticles. A microparticle concentrate may be formed. The system may further include a washing unit. In the washing unit, the microparticle concentrate may be contacted with a washing solution and may form an amalgam of washed particles. 1. A system for reducing a solvent concentration in a plurality of microparticles , the system comprising:a solvent extraction tank where a mixture comprising the plurality of microparticles and the solvent are contacted with water to form an aqueous suspension; wherein a first portion of the solvent dissolves into the water of the aqueous suspension to reduce the solvent concentration in the plurality of microparticles from a first solvent concentration in the mixture to a second solvent concentration in the aqueous suspension; (i) introducing additional water to the aqueous suspension in the concentration unit; and', '(ii) removing at least a portion of the water and at least a portion of the solvent from the aqueous suspension in the concentration unit, wherein the additional water is introduced at a slower rate than the water and the solvent are removed from the concentration unit to form a microparticle concentrate with the third solvent concentration; and, 'a concentration unit in fluid communication with the solvent extraction tank, wherein the concentration unit ...

Подробнее
Номер записи: 50
18-03-2021 дата публикации

DEVICE FOR PREPARING A COSMETIC COMPOSITION, SET OF CAPSULES AND ASSOCIATED PREPARATION PROCESS

Номер: US20210077962A1
Автор: COUDERC PAUL, DEHAUDT Eric
Принадлежит:

Device for preparing a cosmetic composition, set of capsules and associated preparation process The invention relates to a device () for preparing a cosmetic composition comprising: —a structure () defining a housing () extending along a longitudinal axis (X-X′), —a piston () movable in translation in relation to the structure () along the longitudinal axis (X-X′) in the housing (), and —an outlet nozzle () opening at one end of the housing (), suitable for being fluidically connected to a receptacle. The housing () receives removably a plurality of capsules () aligned coaxially along the longitudinal axis (X-X′), at least one of the capsules () containing at least one constituent of the cosmetic composition (). The piston () is mounted movable through the capsules () to successively perforate each capsule () and convey contents of each capsule () to the outlet nozzle (). 1. A device for preparing a cosmetic composition , the device comprising:a structure defining a housing extending along a longitudinal axis (X-X′),a piston movable in translation in relation to the structure along the longitudinal axis (X-X′) in the housing, andan outlet nozzle opening at one end of the housing, suitable for being fluidically connected to a receptacle or to a preform intended to form a receptacle,characterized in that the housing receives removably a plurality of capsules each comprising a substantially cylindrical side wall, the capsules being aligned coaxially along the longitudinal axis (X-X′), at least one of the capsules containing at least one constituent of the cosmetic composition,the piston being mounted movable through the capsules to successively perforate each capsule and convey contents of each capsule to the outlet nozzle.2. The device according to claim 1 , comprising a plurality of piston heads having different outer diameters from one another claim 1 , the heads being arranged in the housing at a distance from one another along the longitudinal axis (X-X′) claim 1 ...

Подробнее
Номер записи: 51
26-03-2015 дата публикации

Geometry enhancement of nanoscale energy deposition by x-rays

Номер: US20150083579A1
Автор: Ting Guo
Принадлежит: UNIVERSITY OF CALIFORNIA

A principle is established to show that nanoscale energy deposition in water by X-rays can be greatly enhanced via the geometry of nanostructures. The calculated results show that enhancement over background water can reach over 60 times for a single nanoshell made of gold. Other geometries and nanostructures are investigated, and it is found that a shell of gold nanoparticles can generate similar enhancement. The concepts of composition, matrix, and satellite effects are established and studied, all of which can further increase the enhancement of the effect of X-rays.

Подробнее
Номер записи: 52
14-03-2019 дата публикации

Core-shell plasmonic nanogapped nanostructured material

Номер: US20190079014A1
Автор: Hongwei Duan, Jiajing Zhou
Принадлежит: NANYANG TECHNOLOGICAL UNIVERSITY

A core-shell plasmonic nanogapped nanostructured material is provided. The core-shell nanogapped nanostructured material has a core and at least one shell surrounding the core, wherein the at least one shell comprises a first layer comprising a polymer having a catechol group, wherein the first layer defines the nanogap in the core-shell plasmonic nanostructured material, and a second layer comprises a metal disposed on the first layer. A method of preparing the core-shell plasmonic nanogap nanostructured material, and use of the core-shell plasmonic nanogap nanostructured material are also provided. As an embodiment, a polydopamine covalently bonded to a Raman probe or a fluorescent probe is used to prepare the first layer of the shell in said core-shell plasmonic nanogap nanostructured material, thereafter a gold shell is deposited onto the polydopamine to form a second layer of the shell. In present invention, it is demonstrated that the method is highly versatile and can be used for different core materials, including magnetic Fe 3 O 4 nanoparticles and metal-organic frameworks (MOF) nanoparticles. The potential application of said core-shell plasmonic nanogapped nanostructured in sensing and theranostics is also demonstrated.

Подробнее
Номер записи: 53
31-03-2022 дата публикации

FLUID STORAGE MEDIA AND METHOD OF DELIVERING A FLUID

Номер: US20220097016A1
Автор: AYTUG TOLGA, Biswas Kaushik, HUN DIANA, Lamm Meghan E., Li Kai
Принадлежит:

A fluid storage media includes a plurality of microspheres. Each microsphere includes a porous core with a porous core material and having an exterior surface. A stored fluid is within the porous core. A coating layer covers all of the exterior surface of the porous core. The coating layer includes a coating material which transitions from a first state to a second state, wherein in the first state the coating material is permeable to the stored fluid, and in the second state the material is impermeable to the stored fluid. The coating material in the second state is configured to encapsulate and maintain the stored fluid inside the porous core. A method of making a fluid storage media, a method of delivering a fluid and a method of delivering a biologically active fluid medication to a patient are also disclosed. 1. A fluid storage media , comprising: a porous core comprising a porous core material and having an exterior surface;', 'a stored fluid within the porous core;', 'a coating layer covering all of the exterior surface of the porous core, wherein the coating layer comprises a coating material which transitions from a first state to a second state, and wherein in the first state the coating material is permeable to the stored fluid, and in the second state the material is impermeable to the stored fluid; and,', 'wherein the coating material in the second state is configured to encapsulate and maintain the stored fluid inside the porous core., 'a plurality of microspheres, each microsphere comprising2. The fluid storage media of claim 1 , wherein the stored fluid pressure in the porous core is above an ambient pressure surrounding the microspheres.3. The fluid storage media of claim 1 , wherein the coating is biodegradable.4. The fluid storage media of claim 1 , wherein the coating material degrades at an operating temperature.5. The fluid storage media of claim 1 , wherein the coating is frangible.6. The fluid storage media of claim 1 , further comprising a ...

Подробнее
Номер записи: 54
12-03-2020 дата публикации

Methods and Systems for Forming Microcapsules

Номер: US20200078757A1
Автор: AOUAD Yousef Georges, Rodrigo Gomez Raul, Sadler John David
Принадлежит:

A method for producing microcapsules is provided. The method includes providing a core liquid comprising one or more oils and one or more surfactants and a shell liquid comprising water, one or more surfactants and at least one wall forming material. The method further includes forming a plurality of liquid droplets within a gas, wherein each of the plurality of liquid droplets has a core formed from the core liquid and a shell surrounding the core formed from the shell liquid, wherein the core liquid and shell liquid have a dynamic spreading coefficient greater than zero at 0.03 seconds. At least some of the water is evaporated within a drying chamber to form microcapsules. 1. A method for producing microcapsules , comprising:providing a core liquid comprising one or more oils and one or more surfactants;providing a shell liquid comprising water, one or more surfactants and at least one wall forming material;forming a plurality of liquid droplets within a gas, wherein each of the plurality of liquid droplets comprise a core formed from the core liquid and a shell surrounding the core formed from the shell liquid, wherein the core liquid and shell liquid have a dynamic spreading coefficient greater than zero at 0.03 seconds; andevaporating, within a drying chamber, at least some of the water from each of the plurality of liquid droplets to form a microcapsule there from.2. A method according to claim 1 , wherein the water has a concentration greater than 60% by weight of the shell liquid.3. A method according to claim 1 , wherein the wall forming material is selected from the group consisting of polyesters claim 1 , shellacs and mixtures thereof.4. A method according to claim 1 , wherein the core liquid comprises greater than 80% by weight of the one or more oils.5. A method according to claim 1 , wherein the step of forming the plurality of liquid droplets further comprises using a microfluidic device to form a bi-component liquid stream comprising the core liquid ...

Подробнее
Номер записи: 55
29-03-2018 дата публикации

Microcapsule

Номер: US20180085724A1
Автор: GAUCKLER Ludwig Julius, GONZENBACH Urs Thomas, KRAUSS JUILLERAT Franziska, STURZENEGGER Philip Noah
Принадлежит:

A method for the production of a microcapsule, in particular a microcapsule of spherical shape having a hollow capsule space therein, includes the steps of: a) preparing of a suspension of particulate cementitious material in a solvent b) preparing a dispersion by mixing the suspension of step a) with an immiscible fluid so that (i) the suspension is present as a dispersed phase in the fluid as a dispersion medium or that (ii) the fluid is present as the dispersed phase in the suspension as the dispersion medium, such that the particulate material of the suspension adsorbs at least partially at a phase boundary between the fluid and the suspension, and c) allowing the particulate material adsorbed at the phase boundary to hydrate with the formation of a microcapsule. 118-. (canceled)19. A method for the production of a microcapsule having a hollow capsule space , the method comprising the steps of:{'b': 100', '111', '125, 'a) preparing of a suspension () of particulate cementitious material () in a solvent (),'}{'b': 200', '100, 'claim-text': [{'b': '130', 'claim-text': [{'b': 100', '130, '(i) the suspension () is present as a dispersed phase in the immiscible fluid () as a dispersion medium or that'}, {'b': 130', '100, '(ii) the immiscible fluid () is present as the dispersed phase in the suspension () as the dispersion medium,'}], 'a) with an immiscible fluid (), wherein, {'b': 111', '100', '130', '100, 'whereby the particulate material () of the suspension () adsorbs at least partially at a phase boundary between the fluid () and the suspension (), and'}], 'b) preparing an emulsion or foam () by mixing the suspension () of step'}{'b': 112', '115, 'c) allowing the particulate material () adsorbed at the interphase to hydrate with the formation of an individual microcapsule ().'}20. The method for the production of a microcapsule according to claim 19 , wherein the method further comprises claim 19 , after preparing the emulsion in (b) claim 19 , conducting a ...

Подробнее
Номер записи: 56
19-03-2020 дата публикации

SOLID SCENT BOOSTER COMPOSITION

Номер: US20200087598A1
Автор: Anastasiou Theodore, Minck Douglas, NORMAND Valery, STRUILLOU Arnaud
Принадлежит:

Described herein is solid scent booster composition including: 2. The solid scent booster composition according to claim 1 , wherein said solid carrier comprises perfume absorbed into or adsorbed onto said solid carrier.3. The solid scent booster composition according to claim 1 , wherein said solid carrier is selected from the group consisting of urea claim 1 , sodium chloride claim 1 , sodium sulphate claim 1 , sodium acetate claim 1 , zeolite claim 1 , sodium carbonate claim 1 , sodium bicarbonate claim 1 , clay claim 1 , talc claim 1 , calcium carbonate claim 1 , magnesium sulfate claim 1 , gypsum claim 1 , calcium sulfate claim 1 , magnesium oxide claim 1 , zinc oxide claim 1 , titanium dioxide claim 1 , calcium chloride claim 1 , potassium chloride claim 1 , magnesium chloride claim 1 , zinc chloride claim 1 , saccharides claim 1 , polyethylene glycol claim 1 , polyvinylpyrrolidone claim 1 , citric acid or any water soluble solid acid claim 1 , fatty alcohols claim 1 , fatty acids claim 1 , and mixtures thereof.5. The solid scent booster composition according to claim 1 , wherein said granulated powder comprises up to 20% by weight of said encapsulated oil based on the total weight of said granulated powder.6. The solid scent booster composition according to claim 1 , wherein the totality of said oil phase is encapsulated.7. The solid scent booster composition according to claim 1 , wherein said oil phase comprises at least one part that is not encapsulated claim 1 , and wherein said granulated powder comprises up to 45% by weight of the total amount of said oil phase based on the total weight of said granulated powder.8. The solid scent booster composition according to claim 7 , wherein said oil phase comprises at least one part that is not encapsulated and wherein said granulated powder comprises up to 35% by weight of the total amount of said oil phase based on the total weight of said granulated powder.9. The solid scent booster composition according to ...

Подробнее
Номер записи: 57
12-05-2022 дата публикации

PROCESS FOR DRYING A SUSPENSION AT ROOM TEMPERATURE

Номер: US20220142217A1
Автор: Bouquerand Pierre-Etienne, Dardelle Gregory, Elabbadi Amal, MAIO Serge, NORMAND Valery
Принадлежит:

The present invention relates to a new process for the preparation of powdered microcapsules encapsulating active volatile active ingredients, in particular a perfume or a flavour, said process being performed at room temperature. Powdered microcapsules obtainable by said process are also an object of the invention. Perfuming and flavouring compositions as well as consumer products comprising said capsules are also part of the invention. 116-. (canceled)17. A non-spherical perfuming or flavoring powdered microcapsule , comprising:(i) an oil phase comprising a volatile active ingredient;(ii) a water phase including a water-soluble carbohydrate carrier;(iii) optionally an emulsifier; and(iv) a desiccant;wherein the weight ratio between the oil phase and the water is above 1; andwherein the non-spherical perfuming or flavoring powdered microcapsule has a coefficient of circularity less than 0.7.18. The non-spherical perfuming or flavoring powdered microcapsule according to claim 17 , wherein the non-spherical perfuming or flavoring powdered microcapsule has a coefficient of circularity less than 0.6.19. The non-spherical perfuming or flavoring powdered microcapsule according to claim 17 , wherein the non-spherical perfuming or flavoring powdered microcapsule comprises a perfume or a flavor oil freely dispersed in the water phase.20. The non-spherical perfuming or flavoring powdered microcapsule according to claim 17 , wherein the non-spherical perfuming or flavoring powdered microcapsule comprises a perfume or flavor oil claim 17 , wherein part of said oil is freely dispersed in the water phase and another part of the oil is dispersed in an encapsulated form in the water phase.21. The non-spherical perfuming or flavoring powdered microcapsule according to claim 20 , wherein the encapsulated perfume or flavor oil consists of water-insoluble microcapsules obtainable by a process selected from the group consisting of interfacial polymerisation claim 20 , polycondensation ...

Подробнее
Номер записи: 58
05-04-2018 дата публикации

Layered Bodies, Compositions Containing Them and Process for Producing Them

Номер: US20180092860A1
Автор: Chang Ming Wei, Edirisinghe Mohan, Stride Eleanor
Принадлежит: UCL Business PLC

A layered body comprising: a core region; at least one intermediate layer disposed around the core region; and an outer layer disposed around the at least one intermediate layer, wherein at least one of the at least one intermediate layers comprises a gas, the layered body having at least one dimension, measured across the body and through the core region, of 100 μm or less. 1. A layered body comprising:a core region;at least one intermediate layer; and (1) the at least one intermediate layer and the outer layer are disposed concentrically around the core region such that the at least one intermediate layer surrounds the core region and the outer layer surrounds the at least one intermediate layer; and', (i) each of the core region and the outer layer is solid and comprises a biocompatible polymer, and the at least one intermediate layer disposed between the core region and the outer layer comprises a layer comprising a gas; or', '(ii) the core region comprises a gas, and the at least one intermediate layer comprises a first intermediate layer and a second intermediate layer, wherein the first intermediate layer is solid, surrounds the core region, and comprises a biocompatible polymer, and the second intermediate layer comprises a gas and is disposed between the first intermediate layer and the outer layer, and the outer layer is solid and comprises a biocompatible polymer;', 'wherein the layered body is formed in an electrohydrodynamic process and the gas of the intermediate layer in (i) or (ii) is selected from air and a gas formed from the vaporization of a volatile liquid., '(2) the layered body has at least one dimension, measured across the body and through the core region, of 100 μm or less; and wherein either], 'an outer layer, wherein2. The layered body according to claim 1 , wherein at least two intermediate layers are disposed around the core region.3. The layered body according to claim 1 , wherein the body is in the form of a capsule.4. The layered ...

Подробнее
Номер записи: 59
28-03-2019 дата публикации

Process for synthesizing hybrid core-shell microparticles comprising a polymer core and a silicon dioxide shell with controlled structure and surface

Номер: US20190091647A1
Автор: Dominik SARMA, Knut Rurack
Принадлежит: Bundesministerium fuer Wirtschaft und Energie

Hybrid microparticle having a polymer core and a shell which surrounds the polymer core at least in sections and which has a silicon dioxide layer; characterized by an RF value, the RF value being defined as the ratio of an external surface area amenable to the adsorption of nitrogen to a surface area which is computable from an arithmetic mean diameter of the hybrid microparticle considered as an ideal sphere, where the shell has a structure selected from: closed and smooth, with the shell having an RF value of between 1 and 1.5; closed and hillocky, with the shell having an RF value of between 1.51 and 3; or open, with the shell having an RF value of greater than 3.01.

Подробнее
Номер записи: 60
08-04-2021 дата публикации

LIPOSOME COMPOSITION AND METHOD FOR PRODUCING SAME

Номер: US20210100745A1
Автор: Matsumoto Takeshi, MORI Mikinaga, Ono Kohei, Ono Makoto
Принадлежит: FUJIFILM Corporation

Provided are a liposome composition which has a practically required long-term preservation stability, and which has a release rate of a drug on the order of several tens of hours due to releasability of a drug being able to be suitably controlled by rendering an inner water phase hyper-osmotic; and a method for producing the same. According to the present invention, it is possible to provide a liposome composition, including liposomes each of which has an inner water phase and an aqueous solution which constitutes an outer water phase and in which the liposomes are dispersed, in which the content of cholesterols is 10 mol % to 35 mol % with respect to the total amount of lipid components in the liposome composition, and each of the liposomes encapsulates a drug in a dissolved state, and an osmotic pressure of the inner water phase is 2-fold to 8-fold relative to the osmotic pressure of the outer water phase. 1. A liposome composition , comprising:liposomes each of which has an inner water phase and an aqueous solution which constitutes an outer water phase and in which the liposomes are dispersed,wherein the content of cholesterols is 17 mol % to 21 mol % with respect to the total amount of lipid components in the liposome composition,wherein the lipids constituting the liposome include at least hydrogenated soybean phosphatidylcholine, 1,2-distearoyl-3-phosphatidylethanolamine-polyethylene glycol, and cholesterol,the drug is an anticancer agent which is gemcitabine,wherein the drug is present in a dissolved state in the inner water phase of the liposome.2. The liposome composition according to claim 1 , wherein a release rate of the drug from the liposome composition in blood plasma is 10 wt %/24 h or more relative to an initial encapsulation amount in the liposome composition.3. A liposome composition claim 1 , comprising:liposomes each of which has an inner water phase and an aqueous solution which constitutes an outer water phase and in which the liposomes are ...

Подробнее
Номер записи: 61
19-04-2018 дата публикации

Layered Bodies, Compositions Containing Them and Process for Producing Them

Номер: US20180104192A1
Автор: Chang Ming Wei, Edirisinghe Mohan, Stride Eleanor
Принадлежит: UCL Business PLC

A layered body comprising: a core region; at least one intermediate layer disposed around the core region; and an outer layer disposed around the at least one intermediate layer, wherein at least one of the at least one intermediate layers comprises a gas, the layered body having at least one dimension, measured across the body and through the core region, of 100 μm or less. 1. A process for producing one or more layered bodies , the process comprising:providing an electrohydrodynamic device, the device comprising at least three concentrically arranged, spaced apart hollow needles, the needles together defining a core channel, at least one intermediate concentrically disposed tubular channel, and an outer concentrically disposed tubular channel,a means for applying a voltage to the needles,providing a first fluid medium comprising a liquid comprising a non-volatile component,providing a second fluid medium comprising or consisting of a volatile liquid,passing the second fluid medium through an intermediate concentrically disposed tubular channel, and, at the same time,passing the first fluid medium through each of the plurality of channels disposed adjacent to the intermediate concentrically disposed tubular channel through which the second fluid medium is passed,and applying a voltage to the needles,such that, on leaving the needles, one or more layered bodies is or are formed.2. The process according to claim 1 , wherein the method produces one or more layered bodies comprising:a core region;at least one intermediate layer disposed concentrically around the core region; andan outer layer disposed concentrically around the at least one intermediate layer, such that the at least one intermediate layer surrounds the core region and the outer layer surrounds the at least one intermediate layer;wherein at least one of the at least one intermediate layers comprises a gas,the layered body having at least one dimension, measured across the body and through the core region ...

Подробнее
Номер записи: 62
03-07-2014 дата публикации

STABILIZING ADDITIVES FOR THERMOCHROMIC PIGMENTS

Номер: US20140187668A1
Автор: Clayton Terrill Scott, Owen Timothy J., Roberts Christopher W., Siske Bryan M., Tomovich Vladimir
Принадлежит: CHROMATIC TECHNOLOGIES, INC.

A microencapsulation process is improved by adding a stabilizing agent that contains one or more catalytic organo-metal oxide materials, such as metal soaps. This functions as a crosslinker by causing unsaturated bonds in the microcapsule walls to react, thereby stabilizing the microcapsules against the effects of additives to coatings that, otherwise, degrade the functionality of thermochromic or photochromic materials at the microcapsule core. 1. In a microencapsulating process that includes forming an emulsion that has respective hydrophobic and hydrophillic phases , and thereafter curing a polymer to microencapsulate the hydrophobic phase as a slurry , the improvement comprising:adding a stabilizing agent to the slurry wherein the stabilizing agent includes a metal-oxygen moiety that is capable of stabilizing the cured microcapsule walls2. The process of claim 1 , wherein the metal of the metal-oxygen moiety is a transition metal.3. The process of claim 1 , wherein the metal of the metal-oxygen moiety is zirconium.4. The process of claim 1 , wherein the metal-oxygen moiety is a soap.5. The process of claim 4 , wherein the metal-oxygen moiety is a transition metal soap.6. The process of claim 1 , wherein the metal-oxygen moiety is a zirconium-metal soap.7. The process of claim 1 , wherein the metal-oxygen moiety is zirconium 2-ethylhexanoate.8. The process of claim 1 , wherein the metal-oxygen moiety is added in a range from 0.5% to 15% by weight of the slurry.9. The process of claim 1 , wherein the polymer is selected to contain dominantly at least one member from the group consisting of melamine formaldehyde polymers and urea formaldehyde polymers.10. The process of claim 1 , wherein the microcapsules are formulated as a thermochromic pigment.11. The process of claim 1 , wherein the microcapsules are formulated as a photochromic pigment.12. The process of claim 1 , wherein the microcapsules are formulated as scented microcapsules.13. A slurry including ...

Подробнее
Номер записи: 63
26-04-2018 дата публикации

Delayed Release Delivery Systems And Methods

Номер: US20180110685A1
Автор: Lee Wilson A.
Принадлежит:

A delayed release delivery system comprises a hydrophilic core particle having surface pores and containing a liquid. The particle is encapsulated in a polymer having a hydrophobic backbone and hydrophilic pendant groups. At least some of the surface pores adjacent the hydrophilic pendant groups are blocked in the presence of water and unblocked in the absence of water. The treated particle contains liquid in a weight ratio of the liquid to the porous core particle of at least 400:1. 1. A method for preparing a delayed release delivery system comprising:(a) providing at least one hydrophilic core particle having surface pores and having a liquid absorbed therein;(b) contacting the particle of (a) with a liquid polymer under conditions sufficient to encapsulate the at least one particle with the liquid polymer to form at least one treated particle, wherein the liquid polymer has a hydrophobic backbone and a plurality of pendant groups, and wherein at least some of the surface pores on the hydrophilic core particle adjacent the hydrophilic pendant groups are blocked in the presence of water and unblocked in the absence of water; and(c) dispersing the at least one treated particle in an aqueous-containing cosmetically acceptable vehicle.2. The method of claim 1 , wherein the contacting comprises mixing claim 1 , spray coating claim 1 , or sonication.3. The method of claim 1 , wherein the polymer comprises a silicone backbone.4. The method of claim 3 , wherein the polymer is modified with polyglycerol pendant groups.510050. The method of claim 1 , wherein the at least one hydrophilic core particle is a microsphere having an average particle size of from about nm to about p.m.6. The method of claim 5 , wherein the microsphere is provided with a network of micropores extending from the surface of the particle through the core.7. The method of claim 1 , wherein the liquid is aqueous-based claim 1 , oil-based claim 1 , an oil-in-water emulsion claim 1 , a silicone-in-water ...

Подробнее
Номер записи: 64
26-04-2018 дата публикации

Delayed Release Delivery Systems And Methods

Номер: US20180111105A1
Автор: Wilson A. Lee
Принадлежит: ELC Management LLC

A delayed release delivery system comprises a hydrophilic core particle having surface pores and containing a liquid. The particle is encapsulated in a polymer having a hydrophobic backbone and hydrophilic pendant groups. At least some of the surface pores adjacent the hydrophilic pendant groups are blocked in the presence of water and unblocked in the absence of water. The treated particle contains liquid in a weight ratio of the liquid to the porous core particle of at least 400:1.

Подробнее
Номер записи: 65
09-06-2022 дата публикации

Acrylic modified polymeric opacifiers for use in organic media

Номер: US20220177723A1
Автор: Donovan K. Lujan, Wayne Devonport
Принадлежит: Arkema Inc

Disclosed are voided latex particles, useful as opacifying agents for coating compositions containing organic solvents. The particles have a hollow interior, which substantially maintains its integrity after the particles are placed in contact with an organic solvent at 25° C. for 30 days. The particles also have a hydrophilic polymeric interior shell surrounding the hollow interior that is swellable with an aqueous swelling solution. The particles have first and second polymeric intermediate shells, surrounding the interior shell, formed from polymers that are different from each other and different from the interior shell polymer. Finally, the particles have an outer polymeric shell, surrounding the interior shells, which is formed from up to 100% by weight, as polymerized units, of methyl methacrylate. The interior shells and the outer shell each have a Tg greater than 60° C. Also disclosed is a multi-stage emulsion process for making the particles.

Подробнее
Номер записи: 66
27-04-2017 дата публикации

Methods for Synthesizing Graphene from a Lignin Source

Номер: US20170113936A1
Автор: CAI Zhiyong, Yan Qiangu, Zhang Jilei
Принадлежит: The United States of America as Represented by the Secretary of Agriculture

Processes, methods, and compositions for synthesizing carbon-based materials are provided. The method of synthesizing carbon-based materials includes providing precursors, forming carbon-encapsulated metal structures from the precursors, and forming nano-shell structure-based graphene materials from the carbon-encapsulated metal structures. The precursors are formed from a biomass and a catalyst, and may be pretreated prior to the forming of the carbon-encapsulated metal structures. 1. A method of synthesizing carbon-based materials , the method comprising:providing precursors;forming carbon-encapsulated metal structures from the precursors; andforming nano-shell structure-based graphene materials from the carbon-encapsulated metal structures.2. The method of claim 1 , wherein providing the precursors comprises preparing the precursors.3. The method of claim 2 , wherein preparing the precursors comprises mixing a biomass and a catalyst.4. The method of claim 3 , wherein the biomass is selected from the group consisting of kraft lignin claim 3 , organosolv lignin claim 3 , lignosulfonates claim 3 , hydrolytic lignin claim 3 , black liquor claim 3 , and combinations thereof.5. The method of claim 3 , wherein the biomass is selected from the group consisting of woody biomass and its derivatives claim 3 , wood chips claim 3 , wood char claim 3 , wood-based chars claim 3 , pyrolysis char claim 3 , starch claim 3 , wood-derived sugars claim 3 , active carbon claim 3 , carbon black claim 3 , and combinations thereof.6. The method of claim 3 , wherein the biomass is dispersed in a solvent selected from the group consisting of water claim 3 , ethanol claim 3 , acetone claim 3 , 1 claim 3 ,3-dioxane claim 3 , 1 claim 3 ,4-dioxane claim 3 , tetrahydrofuran claim 3 , and combinations thereof.7. The method of claim 3 , wherein the catalyst is selected from the group consisting of a metal catalyst claim 3 , a bi-metallic catalyst claim 3 , a tri-metallic catalyst claim 3 , a ...

Подробнее
Номер записи: 67
18-04-2019 дата публикации

Formation of a janus microcapsule

Номер: US20190111403A1
Автор: Brandon Kobilka, Eric Campbell, Jason Wertz, Sarah Czaplewski
Принадлежит: International Business Machines Corp

Microcapsules with a plurality of functionalities on the surface, an article of manufacture including microcapsules with a plurality of functionalities on the surface, and a method of forming a microcapsule with a plurality of functionalities on the surface which includes: providing one or more microcapsules; forming one or more wax particles, the wax particles including a wax core with the one or more microcapsules partially embedded in the wax core; functionalizing a first exposed surface of the one or more microcapsules; removing the functionalized one or more microcapsules from the wax core; and functionalizing a second exposed surface of the functionalized one or more microcapsules, the second exposed surface previously embedded in the wax core are disclosed.

Подробнее
Номер записи: 68
03-05-2018 дата публикации

Benefit delivery particle and composition comprising the particle

Номер: US20180116918A1
Автор: Jones Christopher Clarkson, LEE Kenneth Stuart, Pan Xiaoyun, Wu Yan, ZHANG Yuanyuan
Принадлежит: CONOPCO, INC., D/B/A UNILEVER

Disclosed is a benefit agent delivery particle comprising a benefit agent; and a chitosan salt at the outer surface of the particle, wherein the chitosan salt comprises a chitosan component and amino acid anion, wherein the amino acid comprises phenylalamine; the amino acid does not comprises tyrosine; and the amino acid does not comprises histidine or the amino acid comprises no greater than 20% of histidine by mole of the total amino acid, wherein the benefit agent comprises fragrance, pro-fragrance, hair conditioning agent, anti-dandruff agent, moisturizers, emollients, dyes, pigments, colour care additives, or a mixture thereof. 2. The particle according to wherein the chitosan component of the salt has a viscosity average molecular weight of at least 10 claim 1 ,000.3. The particle according to wherein the amino acid comprises glutamine claim 1 , glutamic acid claim 1 , histidine claim 1 , leucine claim 1 , lysine claim 1 , serine claim 1 , threonine claim 1 , or a mixture thereof.4. The particle according to wherein the amino acid is phenylalanine.5. The particle according to wherein the benefit agent is a fragrance.6. The particle according to any wherein the particle comprises water insoluble non-polysaccharide polymer claim 1 , water insoluble inorganic salt or a mixture thereof.7. The particle according to wherein the particle comprises polystyrene claim 6 , polyvinyl alcohol claim 6 , polyacrylate claim 6 , polymethacrylates claim 6 , polyolefins claim 6 , aminoplast polymer claim 6 , polyacrylamide claim 6 , acrylate-acrylamide copolymer claim 6 , melamine-formaldehyde condensate claim 6 , urea-formaldehyde condensate claim 6 , polyurethane claim 6 , polysaccaharide or a mixture thereof.8. The particle according to wherein the particle has an average particle size of 0.5 to 20 μm.9. (canceled)10. The particle according to wherein at least 50% of the outer shell by weight is the chitosan salt.11. A composition comprising:{'claim-ref': {'@idref': 'CLM- ...

Подробнее
Номер записи: 69
05-05-2016 дата публикации

APPARATUS AND PROCESS FOR FORMING PARTICLES

Номер: US20160121286A1
Автор: CORONA, III Alessandro, SODD Vincent
Принадлежит:

An apparatus and process for forming particles. The apparatus and process employs an intermediate mixer. 1. An apparatus for forming particles , said apparatus comprising:a feed pipe;an intermediate mixer mounted in fluid communication with said feed pipe;a stator in fluid communication with said feed pipe;a cylinder rotationally mounted about said stator and rotatable about a longitudinal axis of said cylinder, wherein said cylinder has a periphery and said cylinder comprises a plurality of apertures disposed about said periphery, wherein said apertures are intermittently in fluid communication with said stator as said cylinder rotates about said stator;a conveyor beneath said cylinder and movable in translation relative to said longitudinal axis.2. The apparatus according to claim 1 , wherein said feed pipe has an effective inside diameter between said intermediate mixer and said stator and said intermediate mixer is within a distance from said stator along said feed pipe of less than about 100 effective inside diameters.3. The apparatus according to claim 1 , wherein said intermediate mixer is a static mixer and said static mixer is a helical static mixer.4. The apparatus according to claim 3 , wherein said apparatus comprises a feed pump in line with said feed pipe claim 3 , wherein said static mixer is positioned in line between said feed pump and said stator.5. The apparatus according to claim 4 , wherein said static mixer has a length in a direction of flow in said static mixer and said static mixer is within less than about 20 said lengths of said stator as measured along said feed pipe.6. The apparatus according to claim 4 , wherein said static mixer has a length in a direction of flow in said static mixer and said static mixer is within less than about 10 said lengths of said stator as measured along said feed pipe.7. The apparatus according to claim 4 , wherein said static mixer has a length in a direction of flow in said static mixer and said static ...

Подробнее
Номер записи: 70
03-05-2018 дата публикации

Method for processing rolling circle amplification products

Номер: US20180119201A1
Автор: Fredrik PERSSON, Linus OLAUSSON, Mathias HOWELL, Ove Ohman
Принадлежит: Vanadis Diagnostics AB

This disclosure provides, among other things, a method for processing a membrane comprising rolling circle amplification (RCA) products. In some embodiments, this method may comprise: (a) obtaining a porous capillary membrane that comprises fluorescently labeled RCA products that are in or on the membrane; (b) depositing a curable polymer onto the membrane; and (c) curing the curable polymer to encapsulate the RCA products in a solid. In some embodiments, the curable polymer may be a silicone and may be transparent in its solid form. A kit for performing the method and a composition made by the method are also provided.

Подробнее
Номер записи: 71
16-04-2020 дата публикации

MICROCAPSULES HAVING A MINERAL LAYER

Номер: US20200114328A1
Автор: Impellizzeri Nicholas, JERRI Huda, NORMAND Valery
Принадлежит:

Described herein is a mineralized core-shell microcapsule slurry including at least one microcapsule having: 1. A mineralized core-shell microcapsule slurry comprising at least one microcapsule having:a) an oil-based core comprising a hydrophobic active ingredient;b) a polymeric shell having a terminating charged functional surface; andc) a mineral layer on the terminating charged functional surface.2. The microcapsule slurry according to claim 1 , wherein the mineral layer has an arithmetical mean roughness value (R) greater than 15 nm and/or a mean roughness depth (R) greater than 50 nm.3. The microcapsule slurry according to claim 1 , wherein the mineral layer does not comprise silicon oxides.4. The microcapsule slurry according to claim 1 , wherein the mineral layer comprises a material chosen from the group consisting of iron oxides claim 1 , iron oxyhydroxide claim 1 , titanium oxides claim 1 , zinc oxides claim 1 , calcium carbonates claim 1 , calcium phosphates and mixtures thereof.5. The microcapsule slurry according to claim 1 , wherein the terminating surface is an anionic surface and wherein the microcapsule comprises a polyelectrolyte scaffolding between the anionic surface and the mineral layer claim 1 , said polyelectrolyte scaffolding including at least one cationic polyelectrolyte layer and at least one anionic polyelectrolyte layer with the proviso that the terminating layer is an anionic polyelectrolyte layer.6. The microcapsule slurry according to claim 1 , wherein the polymeric shell is made of a material selected from the group consisting of polyurea claim 1 , polyurethane claim 1 , polyamide claim 1 , polyacrylate claim 1 , polysiloxane claim 1 , polycarbonate claim 1 , polysulfonamide claim 1 , urea formaldehyde claim 1 , melamine formaldehyde resin claim 1 , melamine urea resin claim 1 , melamine glyoxal resin claim 1 , gelatin/gum acacia shell wall and mixtures thereof.7. The microcapsule slurry according to claim 1 , wherein the oil-based ...

Подробнее
Номер записи: 72
16-04-2020 дата публикации

METHOD OF ENCAPSULATING PARTICULATE MATERIAL

Номер: US20200114331A1
Автор: Blizzard John D.
Принадлежит:

A method of encapsulating particulate materials. The method of encapsulating particulate materials may be used to multi coat a coated thermoplastic particle. The method includes providing an amount of acidified water in an amount to hydrolyze a pre-determined amount of alkoxysilane. A particulate thermoplastic material is dispersed within the acidified water. Once dispersed, an amount of alkoxysilane having a pre-determined formula is added and an amount of time is allowed to pass thereby allowing the alkoxysilane to hydrolyze and build a particle having a pre-determined particle size. Once the particle with pre-determined particle size has been obtained, the particles may be combined with alkoxysilane having a pre-determined formula and an amount of time is allowed to pass thereby allowing the alkoxysilane to hydrolyze and build a particle having a pre-determined particle size. This provides an encapsulated particulate material having one or more coatings thereon. 1. A method of encapsulating particulate materials , said method consisting of:a. providing acidified water at least sufficient for hydrolyzing a predetermined amount of alkoxysilane;b. thereafter, dispersing at least one type of particulate material in said acidified water; [{'br': None, 'sub': x', '4-x, 'RSi(OR′)'}, 'wherein R is selected from the group consisting essentially of alkyl groups, substituted alkyl groups, aryl groups, substituted aryl groups, vinyl, allyl, and hydrogen,', 'wherein the substituents are selected from the group consisting of fluorine, amino, hydroxy, and combinations thereof, and', 'wherein R′ is selected from hydrogen and alkyl groups of 1 to 4 carbon atoms;, 'c. thereafter, slowly adding a predetermined amount of alkoxysilane having the general formulad. thereafter, allowing sufficient time for said alkoxysilane to hydrolyze and build a predetermined particle size; [{'br': None, 'sub': x', '4-x, 'RSi(OR′)'}, 'wherein R is selected from the group consisting essentially of ...

Подробнее
Номер записи: 73
16-04-2020 дата публикации

Preparation of chemically and thermally stable isocyanate microcapsules and applications thereof

Номер: US20200115568A1
Автор: Dawei Sun, Jinglei YANG, Ying Zhao
Принадлежит: Hong Kong University of Science and Technology HKUST

A DL microcapsule is formed that has a core-double layer shell structure with a liquid diisocyanate comprising molecule core and a double layer shell. The double layer shell has an inner layer comprising a polyurea (PU) and an outer layer comprising a poly(urea formaldehyde) foam (PUF). A self-healing coating is formulated from a multiplicity of DL microcapsules in a polymeric matrix. A polymer matrix can be formed by the polyaddition of an epoxy resin. A self-healing coated substrate is formed by applying the self-healing coating precursor that combines DL-microcapsules with an uncured polymeric resin as a dispersion on a substrate and curing the polymeric resin. The self-healing coated substrate is capable of resisting corrosion when abraded. The substrate can be any metal substrate, for example an iron or steel substrate. The polymeric resin can be an epoxy resin.

Подробнее
Номер записи: 74
10-05-2018 дата публикации

CHROMIC MICROCAPSULE COMPRISING COLORANT CORE AND PRESSURE SENSITIVE DESTRUCTIBLE WALL LAYER, AND PREPARATION METHOD THEREFOR

Номер: US20180125765A1
Автор: JIANG Yanfu, JIN Hailan, LEE Ik Joo, Lee Jae Uk, LEE Woon Jang, Park Byung Ho
Принадлежит: KPT LTD.

According to the present invention, provided is a core-shell structured chromic microcapsule having a size of 50-1,500 μm, comprising: a core comprising a colorant core (A) and an optional inner color layer (B); and a shell comprising a pressure sensitive destructible wall layer (C) encompassing the core, an optional outer color layer (D) and an optional outermost protective layer (E), wherein the colorant core allows a high content of a colorant to be contained, and the pressure sensitive destructible wall layer comprises carbon dioxide particles and a binder comprising one or more wall-forming materials and one or more lipid-base materials. The chromic microcapsule according to the present invention has high colorant content, has excellent storage durability, maintenance durability and color-hiding property of the inner color layers, is easily destroyed by pushing, rubbing, polishing or scrubbing with the hands or a tool (cotton fabric, sponge or paper) so as to express the color of the inner color layers, and can maintain stability for a long time even if being added into a carrier. 1. A color-changing microcapsule having an average diameter of 50 to 1500 μm and having a core-shell structure , (A) a pigment core having an average diameter of 30 to 800 μm and comprising:', 'at least one colorant, and', 'a binder comprising at least one wall forming material and at least one lipid-based material; and, 'wherein the core comprises a pigment core (A) and the shell is pressure breakable wall layer (C) titanium dioxide particles, and', 'a binder comprising at least one wall forming material and at least one lipid based material., '(C) a pressure breakable wall layer having a thickness of 10 to 500 μm and comprising2. The color-changing microcapsule according to claim 1 , wherein the core comprises a pigment core (A) and an inner color layer (B): at least one colorant, and', 'binders comprising at least one wall forming material and at least one lipid-based material;, '( ...

Подробнее
Номер записи: 75
11-05-2017 дата публикации

Process for Recovery of Waste Gel-Mass From Softgel Manufacturing Process

Номер: US20170128376A1
Автор: Fulper Lester David, Hart Norton Richard, McKee Shawn P., Stange Werner, Tosado Neftali
Принадлежит: R.P. SCHERER TECHNOLOGIES, LLC

A process and system for recovering gel-mass from a gel-mass-containing waste material. The process comprises retrieving the gel-mass-containing waste material from an encapsulation process; melting the retrieved waste material to provide an oil phase and a non-oil phase; retrieving the non-oil phase to produce a recovered gel-mass; and recycling the recovered gel-mass for combination with fresh encapsulating material to provide a combined encapsulating material for use in encapsulating a same lot of the same product which was being encapsulated in the step that produced the gel-mass-containing waste material from which the gel-mass was obtained. The system comprises a heated accumulator for receiving and melting the gel-mass-containing waste material to provide an oil phase and a non-oil phase; a pumping system; an optional mixer; and a control system. 1. An encapsulation process including recovery of gel-mass from a gel-mass-containing waste material , comprising the steps of:(a) encapsulating a product thereby producing an encapsulated product and a gel-mass-containing waste material;(b) melting the gel-mass-containing waste material to produce an oil phase and a non-oil phase;(c) separating the non-oil phase to provide a recovered gel-mass;(d) combining the recovered gel-mass with fresh encapsulating material to provide a combined encapsulating material; and(e) feeding the combined encapsulating material to step (a) for encapsulation of a same lot of the same product which was being encapsulated in the step (a) that produced the gel-mass-containing waste material from which the recovered gel-mass of step (c) was obtained.2. The process of claim 1 , further comprising the step of mixing the recovered gel-mass prior to combining it with fresh encapsulating material to provide a mixed recovered gel-mass.3. The process of claim 2 , further comprising the step of detecting a water content of the mixed recovered gel-mass.4. The process of claim 3 , further comprising ...

Подробнее
Номер записи: 76
02-05-2019 дата публикации

COMPOSITES, METHODS OF MANUFACTURE THEREOF, AND ARTICLES CONTAINING THE COMPOSITES

Номер: US20190127620A1
Автор: Smith Ian, Soong Sharon, WEI MING
Принадлежит: Rogers Corporation

A composite includes a polymer; and a phase-change composition including an unencapsulated first phase-change material, and an encapsulated second phase-change material. 1. A composite , comprising:5 weight percent to 50 weight percent of a polymer; and an unencapsulated first phase-change material, and', 'an encapsulated second phase-change material,, '50 weight percent to 95 weight percent of a phase-change composition comprising'}wherein weight percents are based on the total weight of the composite.2. The composite of claim 1 , whereinthe polymer is an elastomeric block copolymer, an elastomeric grafted copolymer, an elastomeric random copolymer, styrene-butadiene block copolymer, polybutadiene, ethylene propylene diene terpolymer, natural rubber, polyethylene oxide, polyethylene, or a combination comprising at least one of the foregoing.3. The composite of claim 1 , wherein the phase-change composition has a melting temperature of 5° C. to 70° C.4. The composite of claim 1 , wherein the first phase-change material and the second phase-change material are different.5. The composite of claim 1 , wherein the first phase-change material has a first transition temperature and the second phase-change material has a second transition temperature claim 1 , the first transition temperature and the second transition temperature being identical or different.6. The composite of claim 1 , whereinthe first phase-change material comprises a C10-C35 alkane.7. The composite of claim 1 , whereinthe second phase-change material comprises a C10-C35 alkane.8. The composite of claim 1 , wherein the encapsulated second phase-change material has a mean particle size less than 50 micrometers.9. The composite of claim 1 , comprising claim 1 , based on the total weight of the composite claim 1 ,5 weight percent to 20 weight percent, of the polymer; and80 weight percent to 95 weight percent, of the phase-change composition.10. The composite of claim 1 , comprising claim 1 , based on the ...

Подробнее
Номер записи: 77
09-05-2019 дата публикации

MICROSPHERES CONTAINING THERAPEUTIC AGENTS AND RELATED METHODS OF USE

Номер: US20190133949A1
Автор: Reb Philippe, Thomas Meriadeg
Принадлежит:

Microspheres, compositions including the microspheres, and methods of using the microspheres are disclosed herein. The microspheres can be substantially spherical and can include a copolymer of a monomer (such as an acrylic monomer) and a cyclodextrin or a derivative thereof. The microspheres can also include a therapeutic agent, such as a platinum-based drug. 1. Microspheres suitable for use in therapeutic embolization , comprising: one or more monomers selected from the group consisting of acrylic monomers, acrylamide monomers, vinyl monomers, or derivatives thereof;', 'a monomer comprising an alkyne functional group; and', 'a cyclodextrin or a derivative thereof; and, 'a biocompatible, polymeric material comprising a copolymer comprisinga therapeutic agent,wherein the copolymer comprises between about 10% and about 90% by weight of the one or more monomers, and between about 10% and about 90% by weight of the cyclodextrin.2. The microspheres of claim 1 , wherein the copolymer comprises an acrylamide or a derivative thereof claim 1 , wherein the acrylamide is selected from methacrylamide claim 1 , N-[tris(hydroxymethyl)methyl]acrylamide claim 1 , N claim 1 ,N′-methylenebis(acrylamide) claim 1 , and derivatives and combinations thereof.3. The microspheres of claim 1 , wherein the cyclodextrin is selected from α (alpha)-cyclodextrins claim 1 , β (beta)-cyclodextrins claim 1 , γ (gamma)-cyclodextrins claim 1 , and derivatives and combinations thereof.4. The microspheres of claim 1 , wherein the cyclodextrin or a derivative thereof is incorporated onto the microsphere after polymerization of the one or more monomers and the monomer comprising an alkyne functional group.5. The microspheres of claim 1 , wherein the polymeric material is cross-linked.6. The microspheres of claim 1 , wherein the microspheres comprise a biodegradable portion and a non-biodegradable portion claim 1 , wherein the biodegradable portion comprises the cyclodextrin or a derivative thereof claim ...

Подробнее
Номер записи: 78
09-05-2019 дата публикации

METHOD FOR PRODUCING MICROCAPSULES

Номер: US20190134592A1
Автор: BERTRAM Ralf, EBBECKE Jan Peter, GREGOR Daniela, Lange Sabine, ROST Benjamin
Принадлежит:

The invention relates to a method for producing microcapsules, comprising the following steps: (a) providing a first aqueous preparation. containing at least 0110 prepolymer; (b) providing a second non-aqueous preparation containing the active substance to be encapsulated, (c) mixing the aqueous and the non-aqueous phases in the presence of at least one emulsifier and/or stabilizer in order to form an emulsion; (d) polymerizing the at least one prepolymer contained in the emulsion from step (c) in order to obtain a dispersion of microcapsules that enclose the active substance; (e) hardening and cross-linking the microcapsules obtained in step (dl; and optionally (f) removing the microcapsules from the dispersion and drying the microcapsules, the method being characterized in that the emulsion is formed in the presence of at least one 1,2-diol in step (c). 1. A process for producing microcapsules , comprising the following steps:(a) providing a first, aqueous formulation comprising at least one prepolymer;(b) providing a second, nonaqueous formulation comprising an active to be encapsulated;(c) mixing the aqueous phase and the nonaqueous phase in the presence of at least one emulsifier and/or stabilizer to form an emulsion;(d) polymerizing the at least one prepolymer present in the emulsion from step (c) to obtain a dispersion of microcapsules enclosing the active;(e) hardening and crosslinking the microcapsules obtained in step (d), and optionally(f) removing and drying the microcapsules from the dispersion, wherein the emulsion is formed in step (c) in the presence of at least one 1,2-dial.2. The process as claimed in claim 1 , wherein tbesigpolymer is selected from the group consisting of optionally alkyiated mono- and polymethylolurea or mono- and polymethylolmelamine precondensates claim 1 , partially methylated mono- and polymethyloI-1 claim 1 ,3 claim 1 ,5-triamino-2 claim 1 ,4 claim 1 ,6-triazine precondensates claim 1 , mono- and polyalkylolbenzoguanamine ...

Подробнее
Номер записи: 79
30-04-2020 дата публикации

PROCESS FOR PREPARING MICROCAPSULES

Номер: US20200129947A1
Автор: Jacquemond Marlène, Ouali Lahoussine
Принадлежит:

Described herein is a process for preparing microcapsules. More particularly, the process is characterized by the fact that it requires limited amounts of water for preparing microcapsules. Microcapsules obtainable by the disclosed process as well as consumer products including those microcapsules are also described. 2. The process according to claim 1 , wherein the content of water in the dispersing phase is below or equal to 5% by weight based on the total weight of the dispersing phase.3. The process according to claim 2 , wherein the dispersing phase does not comprise water.4. The process according to claim 1 , wherein the dispersing phase is hydrophilic.5. The process according to claim 1 , wherein the dispersing phase comprises nucleophiles groups.6. The process according to claim 1 , wherein the dispersing phase comprises a solvent chosen from the group consisting of glycerol claim 1 ,1 claim 1 ,4-butanediol claim 1 , ethylene glycol and mixtures thereof.7. The process according to claim 1 , wherein the monomer in the oil phase is chosen from the group consisting of at least one polyisocyanate claim 1 , poly maleic anhydride claim 1 , poly acyl chloride claim 1 , polyepoxide claim 1 , acrylate monomers and polyalkoxysilane.8. The process according to claim 1 , wherein the dispersing phase comprises a polyamine.9. The process according to claim 1 , wherein the dispersing phase comprises a polyol.10. The process according to claim 1 , wherein the emulsifier is chosen from the group consisting of gum Arabic claim 1 , lignin sulfonate claim 1 , soy protein claim 1 , sodium caseinate claim 1 , gelatin claim 1 , bovine serum albumin claim 1 , sugar beet pectin claim 1 , hydrolyzed soy protein claim 1 , hydrolyzed sericin claim 1 , Pseudocollagen claim 1 , Biopolymer SA-N claim 1 , Pentacare-NA PF claim 1 , co-polymers of acrylamide and acrylic acid claim 1 , acrylic co-polymers bearing a sulfonate group claim 1 , anionic polyvinyl alcohol claim 1 , cationic ...

Подробнее
Номер записи: 80
24-05-2018 дата публикации

SELF-INFLATING MICROCAPSULES

Номер: US20180141019A1
Автор: HUECKEL Theodore, Sacanna Stefano
Принадлежит:

A method comprises providing an aqueous solution having an alkaline pH and providing an oil including at least one silsesquioxane compound. The oil is added to the aqueous solution. The oil forms a plurality of silsesquioxane oil droplets suspended in the aqueous solution such that an internal osmotic pressure is generated inside the oil droplets via a chemical reaction. The aqueous solution is allowed to osmotically diffuse into the plurality of oil droplets for a predetermined time. The silsesquioxane oil droplets are polymerized by cross-linking the at least one silsesquioxane compound included in the silsesquioxane oil droplets to form a plurality of solidified microcapsules containing the aqueous solution therewithin. 1. A method , comprising:providing an aqueous solution having an alkaline pH;providing an oil including at least one silsesquioxane compound;adding the oil to the aqueous solution, the oil forming a plurality of silsesquioxane oil droplets suspended in the aqueous solution, the adding generating an internal osmotic pressure inside the oil droplets by means of a chemical reaction;allowing the aqueous solution to osmotically diffuse into the plurality of silsesquioxane oil droplets for a predetermined time; andpolymerizing the silsesquioxane oil droplets by cross-linking the at least one silsesquioxane compound included in the silsesquioxane oil droplets to form a plurality of solidified microcapsules containing the aqueous solution therewithin.2. The method of claim 1 , wherein the silsesquioxane compound includes at least one of a hydrolysable silane monomer and a low molecular weight silsesquioxane oligomer.4. The method of claim 1 , wherein allowing the aqueous solution to osmotically diffuse into the oil droplets inflates the oil droplets.5. The method of claim 1 , wherein the chemical reaction includes a base catalyzed hydrolysis.6. The method of claim 1 , further comprising:dissolving a compound in the aqueous solution,wherein the diffusing ...

Подробнее
Номер записи: 81
14-08-2014 дата публикации

CAPSULE WHOSE ENVELOPE IS SEPARATELY IMPERCEPTIBLE DURING THE TOPICAL USE THEREOF

Номер: US20140227330A1
Автор: BLECKMANN Andreas, CONZELMANN Stephanie, Eckert Julia, ECKHARD Yvonne, KALLMAYER Volker, KRUSE Uta, LISTE Kathrin, Nielsen Jens, Raschke Thomas, Riedel Heidi, TEUBER Frank, ZU PUTLITZ Corinna
Принадлежит: Beiersdorf AG

A capsule for cosmetic and/or dermatological ingredients and processes for the production thereof. The capsule comprises an envelope which is solid, semisolid and/or dimensionally stable and comprises one or more substances which are selected from waxes, emulsifiers, and natural and synthetic polymers. The capsule may also comprise a filling. 1. A method of applying a cosmetic ingredient and/or a dermatological ingredient to skin , wherein the method comprises at least one of rubbing and distributing on the skin in direct contact with the skin a composition consisting of one or more capsules , which capsules comprise the cosmetic ingredient and/or dermatological ingredient , the capsules having an average diameter of at least 3 mm and comprising an envelope which is at least one of solid , semisolid and dimensionally stable and comprises at least one of a wax , an emulsifier , a natural polymer and a synthetic polymer.2. The method of claim 1 , wherein the envelope further comprises at least one of water and a polyol.3. The method of claim 2 , wherein the envelope comprises from 50% to 60% by weight of water.4. The method of claim 1 , wherein the envelope comprises lipids which are liquid at room temperature or liquid mixtures thereof and is solidified by having water droplets incorporated therein.5. The method of claim 1 , wherein the envelope further comprises at least one W/O emulsifier.6. A method of claim 1 , wherein the one or more capsules have an average diameter of from 5 mm to 40 mm.7. The method of claim 1 , wherein the envelope has a thickness of from 0.001 mm to 3 mm.8. The method of claim 1 , wherein the filling comprises at least one of an anhydrous preparation claim 1 , an O/W claim 1 , W/O or W/O/W emulsion claim 1 , a gel claim 1 , a hydrodispersion claim 1 , a surfactant claim 1 , and a microemulsion.9. The method of claim 1 , wherein the filling comprises an O/W emulsion.10. The method of claim 1 , wherein the filling comprises at least one of a ...

Подробнее
Номер записи: 82
11-06-2015 дата публикации

Core-Shell Capsules and Methods for Encapsulation Including Diffusion Through Spherical Capsule Membranes

Номер: US20150158004A1
Автор: Meiners Jean Antoine, Zegels Alexandre, Zongo Mathieu
Принадлежит: Laboratoire Meiners Sarl

The present invention relates to a method for encapsulation and to capsules that can be obtained by the method. The method is characterized by the step of counter-current, diffusional exchange across the membrane of a capsule-shell. During the exchange, a solid primary core is replaced by a liquid that may comprise an active agent. The method of the invention may also comprise a step of further processing said capsules, in particular in order to adjust or modify the release characteristics and to control the release of the active agent inside the capsules. 1. (canceled)2. A method of encapsulation , the method comprising the steps of:preparing solid carrier beads from a carrier material,encapsulating said solid carrier beads with an appropriate film forming and/or polymeric material so as to obtain precursor or carrier core-shell capsules;exposing said carrier core-shell capsules to a liquid and/or solubilizing medium, wherein said carrier material is soluble or dispersible in said medium;removing said capsules obtained in the preceding step from said medium, so as to obtain core-shell capsules comprising a liquid core.3. The method of claim 2 , wherein said medium and/or said carrier material comprises an active agent.4. The method of claim 3 , wherein said carrier material comprises an active agent claim 3 , and wherein at least some of said active agent remains and/or is substantially retained in the capsules during the step of exposing said carrier core-shell capsules to a liquid and/or solubilizing medium.5. The method of claim 2 , wherein said step of encapsulating said solid carrier beads is free of a step of coacervation and/or is substantially free of a step of cross-linking gelatin.6. The method of claim 2 , wherein said step of encapsulating said solid carrier beads comprises the step of spraying and/or atomizing a solution comprising a film forming and/or polymeric material and a solvent onto said solid carrier beads.7. The method of claim 2 , wherein ...

Подробнее
Номер записи: 83
21-08-2014 дата публикации

LEAVE-ON COMPOSITIONS CONTAINING CELLULOSE MATERIALS

Номер: US20140234384A1
Автор: Bonner Patricia, Kaminski Claudia, Lorenzetti Danielle Lima, Maitra Prithwiraj, Moscardi Juliana Salles, Wu Jeffrey M.
Принадлежит: JOHNSON & JOHNSON CONSUMER COMPANIES, INC.

The compositions and methods of this invention relate to a leave-on skin care composition containing hydrophobic, linear cellulose particles having an average length of from about 1 to about 500 μm, a particle aspect ratio from about 2 to about 25 and an average thickness of from about 1 to about 500 μm; and a cosmetically acceptable carrier. 1. A leave-on skin care composition , comprising:hydrophobic, linear cellulose particles having an average length of from about 1 to about 500 μm, a particle aspect ratio from about 2 to about 20, a width of from about 1 to about 25 μm; and a cosmetically acceptable carrier, wherein said hydrophobic, linear cellulosic particles comprise a coating of a hydrophobic agent selected from the group consisting of metal soap, organic wax, synthetic wax, long-chain fatty acids, long-chain fatty esters, non-water soluble polymers, high molecular water-insoluble fluoropolymers and polymerized siloxanes, and wherein the water contact angle of said hydrophobic, linear cellulose particles is greater than about 90 degrees.2. A leave-on skin care composition according to wherein said hydrophobic claim 1 , linear cellulose particles have an oil absorption capacity and retention of from about 150 to about 500% weight oil/weight particles.3. A leave-on skin care composition according to wherein said oil absorption capacity and retention of said hydrophobic claim 2 , linear cellulose particles is from about 300 to about 500% weight oil/weight particles.4. (canceled)5. A leave-on skin care composition according to wherein said water contact angle is greater than about 100 degrees.6. A leave-on skin care composition according to wherein said water contact angle is greater than about 120 degrees.7. A leave-on skin care composition according to wherein said hydrophobic claim 1 , linear cellulose particles are derived from cotton.8. A leave-on skin care composition according to wherein said hydrophobic claim 7 , linear cellulose particles are ...

Подробнее
Номер записи: 84
09-06-2016 дата публикации

PERSONALIZING SUBSTANCE FOR APPLICATION TO THE SKIN OR ADDITION TO TATTOO INK AND METHODS OF PREPARATION THEREOF

Номер: US20160158119A1
Автор: Boger Erich, Duffy Patrick, Jorgensen Ellen Dias, Mathiowitz Edith
Принадлежит: Chamber Works, LLC

Compositions for delivering materials, such as a biological material, sand, soil, metal, water, sea water, holy water, synthetic or biological polymers, cremated ash, ceramics, animal or plant tissue, or another physiologically compatible component having personal significance to an individual are described herein. The material(s) are encapsulated in an inert, non-bioerodible, hydrophobic, polymeric material. Methods of making microparticles encapsulating the personalizing substance and methods of use are also provided. The personalizing substance may be encapsulated in a polymeric non-bioerodible microparticle. The encapsulated personalizing substance may be combined with a carrier for delivery to an individual's skin. In some embodiments, the personalizing substance is added to a tattoo ink and incorporated in a tattoo created on an individual's skin. Following injection in the skin, the encapsulated material remains in the microparticles, and is not released over time. 1. A method of applying a personalized ink tattoo to the skin of an individual comprisinginjecting into the individual's skin a composition comprising:(i) tattoo ink; and(ii) non-bioerodible microparticles comprising DNA encapsulated in a biocompatible, hydrophobic, non-bioerodible polymer, wherein(a) the microparticles do not release a detectable amount of the DNA for one week after delivery to an individual's skin; and(b) the DNA remains at the site of delivery.2. The method of claim 1 , wherein the injection is made at the site of an existing tattoo.3. The method of claim 1 , further comprising mixing the microparticles with the tattoo ink prior to injection.4. The method of claim 1 , wherein the step of injecting is repeated multiple times at different sites on the skin to form a tattoo design.5. The method of claim 1 , wherein the DNA is in the form of nanoparticles.6. The method of claim 1 , wherein the microparticles have a size ranging from 1 micron to 5 microns.7. The method of claim 1 , ...

Подробнее
Номер записи: 85
07-06-2018 дата публикации

Polymer shell microcapsules with deposition polymer

Номер: US20180154328A1
Автор: Christopher Clarkson Jones, Paul Ferguson
Принадлежит: Conopco Inc

A microcapsule containing a benefit agent inside a polyurea shell characterised in that polyurea has a nonionic polysaccharide deposition polymer covalently bonded to it. Also a process for making the microcapsule and compositions incorporating the microcapsule.

Подробнее
Номер записи: 86
18-06-2015 дата публикации

DELIVERY OF ACTIVE INGREDIENTS FROM PLANT MATERIALS TO SKIN

Номер: US20150164813A1
Автор: Chen Daniel, Swanzy James
Принадлежит:

Disclosed is an apparatus and methods for its use that is configured to be used to treat various skin conditions. The apparatus includes a water-permeable absorbent material and a plant material comprising a water-soluble skin-active ingredient. The plant material is enclosed within the water-permeable absorbent material, and the water-permeable absorbent material is configured to absorb water and allow the absorbed water to contact the plant material so as to release the active ingredient from the plant material. The active ingredient is then absorbed by the absorbent material, which is then topically applied to skin in need of skin treatment. 1. An apparatus configured to be used to treat a skin condition , the apparatus comprising:(a) a water-permeable absorbent material; and(b) a plant material comprising a water-soluble skin-active ingredient or a powdered form of a water-soluble skin-active ingredient or a combination thereof,wherein the plant material or the powdered form of the skin-active ingredient is enclosed within the water-permeable absorbent material, and wherein the water-permeable absorbent material is configured to absorb water and allow the absorbed water to contact the plant material or the powdered form of the skin-active ingredient so as to release or solubilize the skin-active ingredient and allow the skin-active ingredient to be absorbed by the absorbent material.2. The apparatus of claim 1 , wherein the water-permeable absorbent material comprises a first outer surface and an opposing second outer surface claim 1 , with the plant material or the powdered skin-active ingredient disposed between said surfaces.3. The apparatus of claim 2 , wherein the first outer surface has a greater surface roughness when compared with the surface roughness of the second outer surface claim 2 , such that the first outer surface is configured to exfoliate skin claim 2 , and the second outer surface is configured to not exfoliate skin.4. The apparatus of claim ...

Подробнее
Номер записи: 87
14-05-2020 дата публикации

Granules

Номер: US20200147577A1
Автор: Brown Robert P., Budd Kenton D., Everman Rebecca L. A., Skorina Taisiya, Tangeman Jean A.
Принадлежит:

Plurality of granules comprising a ceramic core having an outer surface and a shell on and surrounding the core, wherein the shell comprises at least first concentric layers, wherein the first layer comprises first ceramic particles bound together with a first inorganic binder, wherein the first inorganic binder comprises reaction product of at least alkali silicate and hardener, wherein the shell of each granule collectively has a volume of at least 40 volume percent, based on the total volume of the respective granule, and wherein the granules have a minimum Total Solar Reflectance of at least 0.7. The granules are useful, for example, as roofing granules. 1. A plurality of granules comprising a ceramic core having an outer surface and a shell on and surrounding the core , wherein the shell comprises at least first and second concentric layers , wherein the first layer is closer to the core than the second layer , wherein the first layer comprises first ceramic particles bound together with a first inorganic binder , wherein the first inorganic binder comprises reaction product of at least alkali silicate and hardener , wherein the second layer comprises a second inorganic binder and optionally second ceramic particles , wherein if present the second ceramic particles are bound together with the second inorganic binder , wherein the second inorganic binder comprises reaction product of at least alkali silicate and hardener , wherein for a given granule , the first ceramic particles are present in a first weight percent with respect to the total weight of the first layer and the second ceramic particles are present in the second layer of the same granule in a second weight percent with respect to the total weight of the second layer , wherein for a given granule , the first weight percent is greater than the second weight percent , wherein the shell of each granule collectively has a volume of at least 40 volume percent , based on the total volume of the respective ...

Подробнее
Номер записи: 88
28-08-2014 дата публикации

DIRECT ASSEMBLY OF HYDROPHOBIC NANOPARTICLES TO MULTIFUNCTION STRUCTURES

Номер: US20140243189A1
Автор: Lu Zhenda, Yin Yadong
Принадлежит: The Regents of the University of California

A process that allows convenient production of multifunctional composite particles by direct self-assembly of hydrophobic nanoparticles on host nanostructures containing high density surface thiol groups is present. Hydrophobic nanoparticles of various compositions and combinations can be directly assembled onto the host surface through the strong coordination interactions between metal cations and thiol groups. The resulting structures can be further conveniently overcoated with a layer of normal silica to stabilize the assemblies and render them highly dispersible in water for biomedical applications. As the entire fabrication process does not involve complicated surface modification procedures, the hydrophobic ligands on the nanoparticles are not disturbed significantly so that they retain their original properties such as highly efficient luminescence. Multifunctional nonspherical nanostructures can be produced by using mercapto-silica coated nano-objects of arbitrary shapes as hosts for immobilizing functional nanoparticles. Multilayer structures can be achieved by repeating the mercapto-silica coating and nanoparticle immobilization processes. 1. Method of production of multifunctional colloidal structures by direct self-assembly of nanoparticles on host nanostructures.2. The method of claim 1 , wherein a surface of the host nanostructure contains ligands that can form strong coordination bonds with the nanoparticles.3. The method of claim 1 , wherein a surface of the host nanostructure contains thiol groups.4. The method of claim 1 , wherein a surface of the host nanostructure contains amine groups claim 1 , or phosphine groups claim 1 , or phosphate groups claim 1 , or sulfate groups claim 1 , or sulfonate groups claim 1 , or carboxylate groups claim 1 , or quaternary ammonium ions.5. The method of claim 1 , wherein the nanoparticles are hydrophobic.6. The method of claim 1 , wherein the nanoparticles are hydrophilic.7. The method of claim 1 , wherein the ...

Подробнее
Номер записи: 89
24-06-2021 дата публикации

PROCESS FOR PREPARATION OF MICROCAPSULES

Номер: US20210187466A1
Автор: Bauer Volker, BURAKOWSKA-MEISE Ewelina, Cetinkaya Murat, Fischer Stefan, Heuffer Stephan, Jemewein Stefen, Nielsen Jesper Duus, Spangenberg Oliver, Witteler Helmut
Принадлежит:

A process for the preparation of microcapsules including 1. A process for the preparation of microcapsules comprising (i) component (a1) comprising a component A selected from the group of polymers consisting of polyethylene glycol vinyl acetate comb polymers, polycarboxylates, polyethers, polyaspartates, polyvinylpyrrolidone, polyamines, and polylysine;', 'wherein component (a1) is a monophasic system at 23° C., and forms a monophasic system at 23° C. if mixed with water in the range of from 1:99 to 99:1 by weight, and', '(ii) component (a2) containing water and a water-soluble component B, wherein water-soluble component B is different from component A, and wherein (a2) is a monophasic system at 23° C.,', '(iii) at least one monomer (a3), and', '(iv) optionally at least one initiator (a4),', 'wherein (a1), (a2), (a3), and (a4) are mixed together in any order or simultaneously, followed by, '(a) preparation of an aqueous biphasic system by mixing'}(b) optionally shearing of the biphasic system to form an emulsion, and(c) polymerizing monomer (a3).2. The process according to wherein a solids content of component A in component (a1) is in the range of from 0.1 to 70% by weight.3. The process according to wherein component B is a water-soluble salt selected from the formula KN claim 1 , with the cation K selected from the group consisting of ammonium claim 1 , potassium claim 1 , sodium claim 1 , magnesium claim 1 , and calcium claim 1 , and the anion N selected from the group consisting of sulfate claim 1 , fluoride claim 1 , chloride claim 1 , bromide claim 1 , iodide claim 1 , phosphate claim 1 , acetate claim 1 , nitrate claim 1 , and methanesulfonate claim 1 , with a and b representing the absolute value of the charge of each ion as a natural number and the stoichiometric number for each ion in the salt.4. The process according to wherein component (a2) comprises at least 5% by weight of a water-soluble salt.5. The process according to wherein the component B is ...

Подробнее
Номер записи: 90
14-06-2018 дата публикации

Nozzle, Apparatus, and Method for Producing Microparticles

Номер: US20180161278A1
Автор: HUNG CHENG-HAN, LIN YING-CHIEH, Liu Zong-Hsin, Lu Ying-Cheng, Tsai Ming-Fang, Tsou Hai-Ching
Принадлежит:

A nozzle, an apparatus, and a method are provided for mass production of dual-layer microparticles used as microcarriers. The nozzle includes a nozzle body having a first fluid passageway and a cover mounted to the nozzle body and having a second fluid passageway. A plurality of extension tubes is communicated with an end of the first fluid passageway and is spaced from each other. Each extension tube includes an outlet port distant to the first fluid passageway. A plurality of sleeves is communicated with the second fluid passageway. Each sleeve includes an opening distant to the second fluid passageway. Each extension tube extends into one of the sleeves. An outer wall of each extension tube is spaced from an inner wall of one of the sleeves. The outlet port of each extension tube is located between the second fluid passageway and the opening of one of the sleeves. 1. A nozzle for producing microparticles , comprising:a nozzle body including a first fluid passageway therein, with a plurality of extension tubes communicated with an end of the first fluid passageway and spaced from each other, with each of the plurality of extension tubes including a distant end having an outlet port and located distant to the first fluid passageway; anda cover mounted to the nozzle body and including a second fluid passageway having an end, with a plurality of sleeves communicated with the end of the second fluid passageway, with each of the plurality of sleeves including a far end having an opening and located distant to the second fluid passageway,with each of the plurality of extension tubes extending into one of the plurality of sleeves, with each of the plurality of extension tubes having an outer wall spaced from an inner wall of the one of the plurality of sleeves by a spacing, with the outlet port of each of the plurality of extension tubes located between the second fluid passageway and the opening of the one of the plurality of sleeves.2. The nozzle for producing ...

Подробнее
Номер записи: 91
30-05-2019 дата публикации

MICROCAPSULES HAVING DUAL REAGENTS SEPARATED BY THE CAPSULE WALL AND METHODS FOR MAKING SAME

Номер: US20190161626A1
Автор: Lentz Carl M., Ryan Kayla L.M.
Принадлежит: Microtek Laboratories, Inc.

Ruptureable, dual reagent mono-capsules are disclosed that have a pre-formed capsule having a core composition, which includes a first reagent, encapsulated within a polymer wall, and a shell connected to an exterior surface of the polymer wall by a surfactant. The shell is made from a second reagent that is chemically bonded to the surfactant by a chemical electrostatic interaction. Upon rupture of the polymer wall of the mono-capsule, the first reagent and the second reagent chemically react with one another to form a reaction product. 1. A ruptureable capsule comprising:a pre-formed capsule having a core composition encapsulated within a polymer wall, the core composition comprising a first reagent; anda shell connected to an exterior surface of the polymer wall by a surfactant, the shell comprising a second reagent attracted to the surfactant by a chemical electrostatic interaction;wherein, upon rupture of the polymer wall, the first reagent and the second reagent chemically react with one another to form a reaction product.2. The capsule of claim 1 , wherein the reaction product seals the rupture in the capsule or seals a feature of a surface upon which the capsules are disposed.3. The capsule of claim 1 , wherein the second reagent comprises a mineral containing a metal that is available for chemical attraction or bonding to the surfactant claim 1 , and the first reagent is a carboxylic acid.4. The capsule of claim 3 , wherein the metal is selected from the group consisting of aluminum calcium claim 3 , silver claim 3 , magnesium claim 3 , iron claim 3 , copper claim 3 , and cobalt claim 3 , and combinations thereof.5. The capsule of claim 3 , wherein the metal is an aluminum.6. The capsules of claim 1 , wherein the second reagent is an inorganic compound and the shell connected to the exterior surface of the polymer wall by the surfactant is crystalline.7. The capsule of claim 6 , wherein the core composition comprises a natural oil claim 6 , and the ...

Подробнее
Номер записи: 92
22-06-2017 дата публикации

PERSONALIZING SUBSTANCE FOR APPLICATION TO THE SKIN OR ADDITION TO TATTOO INK AND METHODS OF PREPARATION THEREOF

Номер: US20170172885A1
Автор: Boger Erich, Duffy Patrick, Jorgensen Ellen Dias, Mathiowitz Edith
Принадлежит: Chamber Works, LLC

Compositions for delivering materials, such as a biological material, sand, soil, metal, water, sea water, holy water, synthetic or biological polymers, cremated ash, ceramics, animal or plant tissue, or another physiologically compatible component having personal significance to an individual are described herein. The material(s) are encapsulated in an inert, non-bioerodible, hydrophobic, polymeric material. Methods of making microparticles encapsulating the personalizing substance and methods of use are also provided. The personalizing substance may be encapsulated in a polymeric non-bioerodible microparticle. The encapsulated personalizing substance may be combined with a carrier for delivery to an individual's skin. In some embodiments, the personalizing substance is added to a tattoo ink and incorporated in a tattoo created on an individual's skin. Following injection in the skin, the encapsulated material remains in the microparticles, and is not released over time. 1. A composition comprising a nucleic acid encapsulated in a non-bioerodible , polymeric microparticle , wherein:(a) the microparticle comprises a biocompatible, hydrophobic, non-bioerodible polymer;(b) the microparticle does not comprise silica;(c) the microparticle does not release a detectable amount of the nucleic acid for at least one month after delivery to an individual's skin; and(d) the microparticle comprises up to 10% (w/w) nucleic acid.2. The composition of claim 1 , further comprising a carrier suitable for injection into the skin.3. The composition of claim 1 , wherein the nucleic acid is in the form of nanoparticles.4. The composition of claim 1 , wherein the nucleic acid comprises a personal identification characteristic selected from the group consisting of short tandem repeats (STRs) claim 1 , single nucleotide polymorphisms (SNPs) claim 1 , epigenetic markers claim 1 , and methylated DNA.5. The composition of claim 1 , wherein the polymer is selected from the group consisting of ...

Подробнее
Номер записи: 93
02-07-2015 дата публикации

Stimuli-responsive interpolymer complex coated hollow silica vesicles

Номер: US20150182468A1
Автор: Chee Leng Lay, Ye Liu
Принадлежит: Agency for Science Technology and Research Singapore

A porous hollow silica particle with an interpolymer complex immobilized thereon is provided. The interpolymer complex comprises a first polymer immobilized to a surface of the silica particle, and a second polymer complexed with the first polymer. Pharmaceutical compositions comprising the silica particle, and methods of forming the silica particle are also provided.

Подробнее
Номер записи: 94
28-06-2018 дата публикации

DELIVERY SYSTEM WITH IMPROVED DEPOSITION

Номер: US20180178183A1
Автор: Berthier Damien, Leon Géraldine, VERHOVNIK Glenn
Принадлежит: FIRMENICH SA

The invention relates to microcapsules coated by a particular mixture of copolymers, which demonstrate a high rate of deposition when applied on a substrate. Those microcapsules can be used in several industries, in particular in perfumery and rinse-off applications. Perfuming compositions and perfumed consumer products comprising these microcapsules are also objects of the invention. 1. A core-shell microcapsule slurry comprising microcapsules having an oil-based core and a polymeric shell coated with a composition comprising at least a first cationic copolymer and a second cationic copolymer , wherein:the weight ratio between the first copolymer and the second copolymer in the slurry is between 0.05 and 7; andthe first cationic copolymer comprises acrylamidopropyltrimonium chloride.2. The microcapsule slurry according to claim 1 , wherein the microcapsules are anionic.3. The microcapsule slurry according to claim 1 , wherein the second copolymer is selected from the group consisting of cationic polymers based on acrylamide claim 1 , methacrylamide claim 1 , N-vinylpyrrolidone claim 1 , quaternized N claim 1 ,N-dimethylaminomethacrylate claim 1 , diallyldimethylammonium chloride claim 1 , quaternized vinylimidazole (3-methyl-1-vinyl-1H-imidazol-3-ium chloride) claim 1 , vinylpyrrolidone claim 1 , cassia hydroxypropyltrimonium chloride claim 1 , guar hydroxypropyltrimonium chloride claim 1 , or polygalactomannan 2-hydroxypropyltrimethylammonium chloride ether claim 1 , starch hydroxypropyltrimonium chloride claim 1 , cellulose hydroxypropyltrimonium chloride claim 1 , and mixtures thereof.4. The microcapsule slurry according to claim 3 , wherein the second copolymer is selected from the group consisting of polyquaternium-5 claim 3 , polyquaternium-6 claim 3 , polyquaternium-7 claim 3 , polyquaternium10 claim 3 , polyquaternium-11 claim 3 , polyquaternium-16 claim 3 , polyquaternium-22 claim 3 , polyquaternium-28 claim 3 , polyquaternium-43 claim 3 , polyquaternium- ...

Подробнее
Номер записи: 95
09-07-2015 дата публикации

MICROCAPSULES

Номер: US20150190774A1
Автор: Phipps Jonathan Stuart, Urquhart Robert
Принадлежит:

A method for making microcapsules including an encapsulated material may include providing, in an aqueous continuous phase, one or more microcapsules including an encapsulated material surrounded by an inner shell including a first cross-linked polymer matrix. An outer surface of the inner shell may be hydrophobic. The method may also include adding thereto a polymerizable liquid component and a stabilizing agent, wherein the polymerizable liquid component is immiscible in the aqueous environment. The method may also include forming microcapsules wetted by the polymerizable liquid component. The method may further include polymerizing the polymerizable liquid component forming an outer shell including a second cross-linked polymer matrix formed about the inner shell. The microcapsules may be included in articles and compositions. 1. A method for making microcapsules comprising an encapsulated material , said method comprising:(a) providing, in an aqueous continuous phase, one or more microcapsules comprising an encapsulated material surrounded by an inner shell comprising a first cross-linked polymer matrix, wherein an outer surface of the inner shell is hydrophobic;(b) adding thereto a polymerizable liquid component and a stabilizing agent, wherein the polymerizable liquid component is immiscible in the aqueous environment, and forming microcapsules wetted by the polymerizable liquid component; and(c) polymerizing the polymerizable liquid component forming an outer shell comprising a second cross-linked polymer matrix formed about the inner shell.2. A method according to claim 1 , wherein the stabilizing agent is selected from a surfactant claim 1 , a surface-modified inorganic particulate material claim 1 , or a combination thereof.3. A method according to claim 2 , wherein the surface of the surface-modified inorganic particulate material is modified with a chemical of the general structure X-Y-Z claim 2 , in which X is a chemical moiety with an affinity for the ...

Подробнее
Номер записи: 96
04-06-2020 дата публикации

Multicompartment Capsules and Methods and Systems for Forming Same

Номер: US20200171456A1
Автор: AHN So Hyun, Bentley William E., LU Xi, OH Hyuntaek, Raghavan Srinivasa R., Terrell Jessica Lynn
Принадлежит: University of Maryland, College Park

Methods and systems for synthesizing multicompartment capsules are disclosed, as well as multicompartment polymer capsules formed in accordance with disclosed techniques. At least one plurality of polymer capsules are formed via a capsule-forming process. A feed solution and a reservoir solution are provided, each comprising a biopolymer. The feed solution biopolymer and the reservoir solution biopolymer have opposite charges. Droplets of the feed solution are introduced into the reservoir solution, thereby forming via electrostatic complexation a plurality of polymer capsules. At least a portion of the resulting polymer capsules are then encapsulated in a larger polymer capsule via a similar process, wherein the feed solution utilized for the encapsulation process also comprises the formed smaller capsules. 1. A method of a synthesizing a multicompartment capsule , comprising the steps of: A. providing a feed solution comprising a biopolymer;', 'B. providing a reservoir solution comprising a biopolymer, wherein said feed solution biopolymer and said reservoir solution biopolymer have opposite charges; and', 'C. introducing droplets of said feed solution into said reservoir solution, thereby forming via electrostatic complexation a plurality of polymer capsules;, 'I. forming at least one plurality of polymer capsules via a capsule-forming process, wherein said capsule-forming process comprises A. providing a feed solution comprising a biopolymer and at least one polymer capsule(s) from said formed plurality of polymer capsules;', 'B. providing a reservoir solution comprising a biopolymer, wherein said feed solution biopolymer and said reservoir solution biopolymer have opposite charges; and', 'C. introducing droplets of said feed solution into said reservoir solution, thereby forming via electrostatic complexation a plurality of outer polymer shells, wherein at least one of said outer polymer shells encapsulates said at least one polymer capsule(s), thereby forming ...

Подробнее
Номер записи: 97
09-07-2015 дата публикации

Hepmc

Номер: US20150191682A1
Автор: Andre Chieffi, Jiten Odhavji Dihora, Johan Smets, Julian David Martin
Принадлежит: Procter and Gamble Co

The present application relates to high efficiency particles and compositions, such as consumer products, comprising such high efficiency particles as well as processes for making and using such high efficiency particles and compositions comprising such high efficiency particles. Such high efficiency particles and compositions provide enhanced benefit agent delivery to a situs that is treated with such high efficiency particles and compositions.

Подробнее
Номер записи: 98
05-07-2018 дата публикации

Microcapsules

Номер: US20180185808A1
Автор: Emmanuel Aussant, Ian Michael Harrison
Принадлежит: Givaudan SA

Encapsulated perfume composition comprising at least one aminoplast core-shell microcapsule dispersed in a suspending medium, the microcapsule comprising a perfume-containing core encapsulated in a shell, said shell comprising a network of cross-linked aminoplast resin, wherein 75-100% of the resin comprises 50-90%, preferably from 60-85%, of a terpolymer and from 10-50%, preferably from 10-25%, of a polymeric stabilizer; the terpolymer comprising: (a) from 20-35 wt %, preferably 22-30% by weight of moieties derived from at least one triamine, (b) from 30-60 wt %, preferably 40-55% by weight of moieties derived from at least one diamine, (c) from 20-35 wt %, preferably 22-30% by weight of moieties derived from the group consisting of alkylene and alkylenoxy moieties having 1 to 6 methylene units, preferably 1 to 4 methylene units and most preferably 1 methylene unit. The encapsulated perfume composition is useful for the storage and dissemination of fragrance in various products, such as laundry products and fabric care products.

Подробнее
Номер записи: 99
20-06-2019 дата публикации

DOSAGE FORMS MATURATION DEVICE, MACHINE AND PROCESS FOR PRODUCING DOSAGE FORMS WITH THE DEVICE

Номер: US20190184357A1
Автор: FOGLIO BONDA OLGA
Принадлежит:

Maturation device for uncured polymeric dosage forms, comprising: —an external drum () with an upstream inlet () for entrance of a fluid (B) with uncured dosage forms, and a downstream outlet () for discharging cured dosage forms; —a first body () inside the drum defining at least one maturation chamber () extending in the body between an upstream chamber inlet, in fluid communication with the inlet for uncured dosage forms, and a chamber downstream outlet; —a first separation element, comprising a solid region, and a passing-through region, able, in an open condition of the chamber downstream outlet, to open the chamber outlet; wherein at least the internal body is rotatable around an own axis to determine the closing/opening condition of a chamber downstream outlet of the internal body. 143-. (canceled)44. Maturation device for curing seamless dosage forms , comprising:{'b': 310', '310', '310, 'i': b', 'c, 'an external drum () with an upstream inlet () for entrance of a fluid (B) containing uncured dosage forms, and a downstream outlet () for discharging cured dosage forms;'}{'b': '313', 'claim-text': [{'b': '313', 'i': 'a', 'at least one maturation chamber () extending in the body between'}, 'an upstream chamber inlet, in fluid communication with the inlet for uncured dosage forms in an open condition of the upstream chamber inlet, and', 'a chamber downstream outlet, for establishing a fluid passage towards downstream and the discharge outlet, in an open condition of the chamber downstream outlet;, 'a first internal body () inside the drum, defining a solid region for closing a downstream outlet of a chamber of the first internal body, and', 'a passing-through region, able, in the chamber downstream outlet open condition, to open the chamber downstream outlet in order to allow passage of fluid towards downstream and the discharge outlet of the maturation device;, 'a first separation element, comprisingwherein at least the first internal body is rotatable around ...

Подробнее
Номер записи: 100