Solid-walled Microcapsule From Synthetic Polymer Patents (Class 428/402.21)
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Patent number: 11458145Abstract: The present disclosure relates to meloxicam bolus formulations and methods of administering the same intravenously, for treatment of pain, which can provide fast onset of pain relief suitable for management of acute moderate to severe pain.Type: GrantFiled: March 8, 2019Date of Patent: October 4, 2022Assignee: BAUDAX BIO, INC.Inventors: Randall J. Mack, Alex Freyer
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Patent number: 11429195Abstract: The present subject matter relates to self-healing keyboards. In an example implementation, a self-healing keyboard of an electronic device comprises a self-healing film having a self-healing layer disposed over a keyboard. The self-healing layer is composed of polyurethane, epoxy vinyl ester, epoxy, polyurethane microcapsules filled with silane compound, and a polysiloxane mixture.Type: GrantFiled: July 6, 2017Date of Patent: August 30, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kuan-Ting Wu, Hung-Ming Chen, Chih Chen Hung
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Patent number: 11384317Abstract: 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.Type: GrantFiled: February 12, 2018Date of Patent: July 12, 2022Assignee: GIVAUDAN S.A.Inventors: Pauline Sallet, Etienne Fleury, Aurelia Charlot, Julien Bernard
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Patent number: 11286391Abstract: In an embodiment, a composition comprises a plurality of reactive particles; wherein at least a first portion of the reactive particles comprises a first reactive monomer located in a first matrix polymer; wherein the first reactive monomer comprises a self-reactive monomer or wherein the first reactive monomer can polymerize with a second reactive monomer located in a second matrix polymer of a second portion of the reactive particles to form a coating polymer. In another embodiment, a method of making the plurality of reactive particles, comprises polymerizing a first matrix monomer in the presence of the first reactive monomer; or polymerizing the first matrix monomer to form a plurality of particles and swelling the plurality of particles with the first reactive monomer. In another embodiment, a method comprises cold spraying the plurality of reactive particles.Type: GrantFiled: April 9, 2018Date of Patent: March 29, 2022Assignees: THE UNIVERSITY OF MASSACHUSETTS, U.S. ARMY RESEARCH LABORATORYInventors: Victor Kenneth Champagne, Jr., Jessica Deborah Schiffman, John Klier, Guozhen Yang, Mengfei Huang
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Patent number: 11173461Abstract: Fabrication of functional polymer-based particles by crosslinking UV-curable polymer drops in mid-air and collecting crosslinked particles in a solid container, a liquid suspension, or an air flow. The particles can contain different phases in the form or layered structures that contain one to multiple cores, or structures that are blended with dissolved or emulsified smaller domains. A curing system produces ultraviolet rays that are directed onto the particles in the jet stream from one side. A reflector positioned on other side of the jet stream reflects the ultraviolet rays back onto the particles in the jet stream.Type: GrantFiled: March 22, 2018Date of Patent: November 16, 2021Assignees: Lawrence Livermore National Security, LLC, Purdue Research FoundationInventors: Congwang Ye, Roger D. Aines, Sarah E. Baker, Caitlyn Christian Cook, Eric B. Duoss, Joshua D. Kuntz, Elaine Lee, James S. Oakdale, Andrew J. Pascall, Joshuah K. Stolaroff, Marcus A. Worsley, Carlos J. Martinez
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Patent number: 10864146Abstract: The present invention relates to a makeup cosmetic composition containing capsules containing pigments in an inner layer thereof and, more specifically, to a makeup cosmetic composition, which contains a pigment in an inner layer and blocks a pigment from an external environment, thereby preventing pigment discoloration caused by the external environment, and contains capsules readily broken so as to enable color to show when applied to the skin, thereby showing color when applied to the skin even though the color of a formulation is nearly colorless and having an excellent skin coloring ability.Type: GrantFiled: September 29, 2017Date of Patent: December 15, 2020Assignee: AMOREPACIFIC CORPORATIONInventors: Eun Jeong Kim, Min Kyung Shim, Yan Li, Hyun Suk Lee, Sun Kyung Choi
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Patent number: 10709713Abstract: The present invention is directed to nanoparticulate compositions comprising meloxicam particles having an effective average particle size of less than about 2000 nm.Type: GrantFiled: August 25, 2019Date of Patent: July 14, 2020Assignee: BAUDAX BIO, INC.Inventors: Eugene R. Cooper, Tuula Ryde, John Pruitt, Laura Kline
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Patent number: 10527964Abstract: An electrographic printer includes an image carrier configured to receive ink capsules onto the surface of the image carrier. The image carrier is configured to transfer the ink capsules to a medium. The ink capsules comprise an ink having a viscosity in a range of about 100 cP to about and 100,000 cP and an encapsulant layer surrounding the ink. A roller configured to compress the ink capsules onto the medium such that the encapsulant layer ruptures and the ink adheres to the medium.Type: GrantFiled: November 10, 2017Date of Patent: January 7, 2020Assignee: Palo Alto Research Center IncorporatedInventor: David K. Biegelsen
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Patent number: 10526495Abstract: Self-healing polymers used to fabricate electrical devices or to coat electrical devices that have a metal or polymer substrate. The self-healing polymers can be made from modified polymers including polyurethanes, polyureas, polyamides and polyesters and, optionally, cross-linking agents and one or more catalysts. The self-healing polymers can be used to make cable ties, tape, conduit fittings and explosion-proof sealant materials.Type: GrantFiled: January 14, 2016Date of Patent: January 7, 2020Assignee: ABB Schweiz AGInventors: Yan Gao, Mark Drane, Cong Thanh Dinh, Ronald White, Ian Rubin de la Borbolla
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Patent number: 10316235Abstract: A container for a food and/or beverages is provided. The container is designed such that it may have the capability of absorbing excess thermal energy from the food or beverage, thereby cooling the consumable material to a desired temperature and maintaining the material at the desired temperature for a considerable period of time. The container typically includes an outer insulating shell; an inner heat conducting liner and a phase change material (PCM). To facilitate heat transfer to and from a food or beverage stored in the container, the PCM is commonly disposed between the outer insulating shell and the inner heat conducting liner and positioned in thermal contact with the inner heat conducting liner. The PCM may include a diol diester having a melting point of about 30 to 90° C.Type: GrantFiled: January 26, 2015Date of Patent: June 11, 2019Assignee: Trent UniversityInventors: Suresh S. Narine, Michael C. Floros, Michael Tessier
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Patent number: 10244657Abstract: A thermal insulation sheet includes a heat storage sheet, an insulation sheet affixed to the heat storage sheet, and a highly-thermoconductive sheet affixed to the insulation sheet. The heat storage sheet contains a resin and powdery microcapsules mixed with the resin. The powdery microcapsules encapsulate latent-heat storage agent. The heat storage sheet has a void ratio not less than 10% and not more than 30%. Or, the heat storage sheet may have surface roughness Ra not less than 2 ?m and not more than 20 ?m. The thermal insulation sheet suppresses or retards transferring of heat generated in a heat-generating component to outside, and suppresses a rapid rising of a temperature of the heat-generating component.Type: GrantFiled: September 1, 2014Date of Patent: March 26, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masafumi Nakayama, Yoshiya Sakaguchi, Hirofumi Yamada
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Patent number: 10092023Abstract: The invention relates to a process for preparing a hybrid coacervate capsule by mixing a first polymer with particles to form particle/polymer complexes; interacting a second polymer with the particle/polymer complexes to form a mixture comprising hybrid complex coacervates which contain particulate inclusions; and adding a core material to the mixture so that the hybrid complex coacervates deposit as a coating layer around the core material. The capsules form another embodiment of the invention.Type: GrantFiled: May 23, 2013Date of Patent: October 9, 2018Assignee: Firmenich SAInventors: Grégory Dardelle, Pascal Beaussoubre, Philipp Erni
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Patent number: 9958800Abstract: A toner includes a toner particle containing a resin component. The resin component contains an ester group-containing olefin copolymer and an acid group-containing olefin copolymer. For example, the ester group-containing olefin copolymer is an ethylene-vinyl acetate copolymer, and the acid group-containing olefin copolymer is an ethylene-methacrylic acid copolymer. The acid group-containing olefin copolymer has an acid value of 50 to 300 mg KOH/g. The content of the ester group-containing olefin copolymer in the resin component is 50 mass % or more based on the total mass of the resin component. The content of the unit derived from the vinyl acetate is 3 mass % or more and 35 mass % or less based on the total mass of the ester group-containing olefin copolymer.Type: GrantFiled: April 25, 2017Date of Patent: May 1, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Yuya Chimoto, Hayato Ida, Takaho Shibata, Junichi Tamura, Kouichirou Ochi, Ryuji Murayama, Daisuke Yamashita, Tomoyo Miyakai, Takashi Hirasa, Kentaro Kamae
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Patent number: 9931281Abstract: A multi-functional self-healing dental composite may intrinsically repair the micro-crack and prevent the crack from propagating to catastrophic failure, thus significantly extending the service life of the restorative material. The self-healing dental composite includes a dental resin matrix, fillers, healing powder, and healing liquid containing micro-capsules distributed throughout the matrix. Each of the micro-capsules have a silica she formed by the hydrolysis condensation of TEOS in the presence of an aqueous solution of a healing liquid. The healing liquid includes a homo-polymers(s) and/or copolymer(s) of carboxylic acid(s). The healing powder particles distributed throughout the resin matrix, and include alumina, silica and other elements. The self-healing may be triggered automatically as a result of micro-cracking, induced by thereto/mechanical fatigue. During the self-healing process, antibacterial agents may be released to provide protection of the composites against cariogenic bacteria.Type: GrantFiled: November 25, 2015Date of Patent: April 3, 2018Assignee: ADA FOUNDATIONInventor: Jirun Sun
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Patent number: 9924720Abstract: A composition is provided, comprising microcapsules, wherein said microcapsules comprise a core and an outer shell, wherein said core comprises one or more water-insoluble compound having melting point above 15° C., wherein said outer shell comprises one or more amino resin that is a reaction product of reactants comprising one or more polyamine and formaldehyde, and wherein said composition further comprises one or more formaldehyde scavenger, one or more reaction product of said amino resin with a formaldehyde scavenger, or a mixture thereof. Also provided is a method of making such a composition.Type: GrantFiled: December 27, 2012Date of Patent: March 27, 2018Assignees: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLCInventors: Ian A. Tomlinson, Nicole L. Wagner, Fanwen Zeng, John W. Ashmore, Boris Polanuyer, Thomas Sanders, David Laganella
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Patent number: 9902869Abstract: Methods of protecting a substrate from light-induced degradation are described. The methods comprise providing a substrate and disposing onto the substrate a plurality of layers deposited by layer-by-layer self-assembly. At least a portion of the layers comprise an organic light absorbing compound, an organic light stabilizing compound, or a combination thereof dispersed within a polyelectrolyte. Also described are articles comprising a substrate and a plurality of layers deposited by layer-by-layer self-assembly wherein at least a portion of the layers comprise an organic light absorbing compound, an organic light stabilizing compound, or a combination thereof dispersed within a polyelectrolyte. Random copolymers suitable for use in the method and articles are also described.Type: GrantFiled: April 14, 2014Date of Patent: February 27, 2018Assignee: 3M Innovative Properties CompanyInventors: Daniel J. Schmidt, Richard S. Buckanin, Timothy J. Hebrink, James R. Miller
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Patent number: 9897533Abstract: An integrated system and method to acquire the health state of a structure identifying the presence of damage, and to self-repair the damage in the considered structure. A sensor network installed in the structure is interrogated by a dedicated hardware for damage detection. In case of damage is detected by the sensor network in the structure, the sensor network is triggered and generates harmonic excitation in the structure. Due to the excitation, the natural frequency of vascular microtubes and/or capsules presented in the structure is reached, promoting their disruption. The vascular microtubes and/or capsules disruption along the damage releases the healing compound, repairing the damaged portion of the structure.Type: GrantFiled: June 19, 2014Date of Patent: February 20, 2018Assignee: Embraer S.A.Inventors: Paulo Anchieta Da Silva, Fernando Dotta, Ricardo Pinheiro Rulli
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Patent number: 9810655Abstract: Provided are a hydrogen ion electrode composed of a composite material of polymer resin and nano iridium oxide, the composite material containing 1-10 nm sized nano iridium oxide particles and/or aggregates thereof which are dispersed to be electrically connected to each other in a moldable, thermoplastic, and hydrophobic polymer resin matrix; a pH sensor using the same; and a method for manufacturing the same. The surface of the hydrogen ion electrode shows very fast pH sensitivity when exposed to a sample solution, and the pH sensitivity is approximate to biphasic characteristics. Furthermore, regardless of high reproducibility of pH sensitivity, abrupt pH change, and repetitive use, very low hysteresis, durability due to high physical strength, and high surface regeneration due to polishing are exhibited, and thus, the lifetime of the electrode can be extended and various sizes and shapes of electrodes can be easily manufactured.Type: GrantFiled: August 14, 2014Date of Patent: November 7, 2017Assignee: EZ SENSING INC.Inventors: Jong Man Park, Moonhee Kim
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Patent number: 9801765Abstract: The present invention relates to an odor control material consisting of a water-insoluble particulate odor control agent and a thermoplastic water-soluble carrier matrix encapsulating the odor control agent. The carrier matrix dissolves when in contact with an aqueous solution, such as urine and the odor control material is obtained by means of thermoforming. The invention relates also to a method for the preparation of the odor control material and the use of the odor control material in absorbent products. The present odor control material minimizes dusting problems caused by particulate odor control agents in production processes.Type: GrantFiled: November 12, 2012Date of Patent: October 31, 2017Assignee: SCA HYGIENE PRODUCTS ABInventors: Ulla Forsgren Brusk, Chatrine Stridfeldt, Kent Malmgren
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Patent number: 9776157Abstract: The present invention provides a thermally expandable microcapsule that is excellent in heat resistance and durability and exhibits an excellent foaming property in a wide temperature range from low temperatures to high temperatures. The present invention is a thermally expandable microcapsule, which comprises a shell containing a copolymer, and a volatile liquid as a core agent included in the shell, the copolymer being obtainable by polymerization of a monomer mixture containing a monomer A and a monomer B, the monomer A being at least one selected from the group consisting of a nitrile group-containing acrylic monomer and an amide group-containing acrylic monomer, the monomer B being at least one selected from the group consisting of a carboxyl group-containing acrylic monomer and an ester group-containing acrylic monomer, a total amount of the monomer A and the monomer B accounting for 70% by weight or more of the monomer mixture, and a weight ratio of the monomer A and the monomer B being 5:5 to 9:1.Type: GrantFiled: March 3, 2011Date of Patent: October 3, 2017Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroyuki Morita, Hiroshi Yamauchi, Hiroshi Natsui
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Patent number: 9504980Abstract: The present invention provides a thermally expandable microcapsule that maintains a high expansion ratio and hardly bursts and shrinks even at a high temperature, a foamable thermoplastic resin masterbatch and a foam molded product that are produced using the thermally expandable microcapsule, and a method for producing the thermally expandable microcapsule. The thermally expandable microcapsule comprises a volatile expansion agent included in a shell as a core agent and the shell formed of a polymer, the shell containing a thermosetting resin and a polymer obtainable by polymerization of a monomer composition containing a nitrile-type monomer and a monomer having a carboxyl group, and the thermosetting resin having no radical-polymerizable double bond and at least two functional groups reactive with a carboxyl group per molecule.Type: GrantFiled: March 14, 2011Date of Patent: November 29, 2016Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroshi Natsui, Hiroshi Yamauchi, Hiroyuki Morita
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Patent number: 9488926Abstract: A toner includes a plurality of toner particles that each include a toner mother particle and an external additive adhering to a surface of the toner mother particle. The toner mother particle includes a core and a shell layer disposed over a surface of the core. The external additive contains silica particles. The toner mother particle has a hydrophobicity of at least 0% and less than 20%. The external additive has a hydrophobicity of at least 5% and no greater than 20%. The hydrophobicity of the toner mother particle is less than the hydrophobicity of the external additive.Type: GrantFiled: November 12, 2014Date of Patent: November 8, 2016Assignee: KYOCERA Document Solutions Inc.Inventors: Masashi Tamagaki, Tomoyuki Ogawa
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Patent number: 9452569Abstract: Methods of making a fiber-reinforced composite article are described. The methods may include providing fibers to an article template, where the fibers have been treated with a coupling-initiator compound. They may further include providing a pre-polymerized mixture that includes a monomer and a catalyst to the article template. The combination of the fibers and the pre-polymerized mixture may be heated to a polymerization temperature where the monomers polymerize around the fibers and form at least a portion of the composite article. The article may then be removed from the article template. Examples of the fiber-reinforced composite articles may include wind turbine blades for electric power generation.Type: GrantFiled: September 3, 2014Date of Patent: September 27, 2016Assignee: Johns ManvilleInventors: Rajappa Tadepalli, Jawed Asrar, Klaus Friedrich Gleich
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Process for manufacturing polysiloxane microcapsules that are functionalized and are not very porous
Patent number: 9427719Abstract: A method is provided for encapsulating products that can have lipophilic or hydrophilic, including volatile, properties in a polysiloxane membrane that is particularly impervious. A method is also provided for evaluating the imperviousness of capsules. The present method includes the following steps: a) formation of droplets by an emulsion between an oily phase containing the product to be encapsulated and an acidic aqueous phase heated to around 50° C. and in the presence of surfactants; b) addition and hydrolysis of at least one silane in order to obtain a silanol; c) increasing the pH in order to start condensation of the silanol to form a first membrane around the droplets of the product to be encapsulated; d) lowering the pH; e) increasing the pH, optionally preceded by adding a silane, in order to obtain a new condensation of silanol around the droplets of the product to be encapsulated.Type: GrantFiled: September 22, 2011Date of Patent: August 30, 2016Assignee: UNIVERSITE DE TOURS FRANCOIS RABELAISInventors: Marie-Claude Viaud-Massuard, Jeremy Monfray, Peggy Robert, Elodie Raynaud, Vincent Bouazza -
Patent number: 9383670Abstract: A toner includes a plurality of toner particles each having a core and a shell layer on a surface of the core. In a cross section of the toner particle analyzed by EELS, for at least 50% of a circumferential length of the core, the shell layer has one or more portions each satisfying conditions that: a ratio of INc to INs is no less than 0.0 and no greater than 0.2; and a thickness of the shell layer is at least 5 nm. Here, INs indicates an intensity of an N-K shell absorption-edge originating from nitrogen atoms in the shell layer, and INc indicates an intensity of an N-K shell absorption-edge originating from nitrogen atoms in the core. In addition, the longest length among the one or more portions of the shell layer each satisfying the conditions is at least 100 nm.Type: GrantFiled: October 23, 2014Date of Patent: July 5, 2016Assignee: KYOCERA Document Solutions Inc.Inventors: Masami Tsujihiro, Ryotaro Komada
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Patent number: 9359536Abstract: Disclosed is an aqueous adhesive agent composition which has no concern about environmental safety and can be used as an adhesive agent composition for automobile interior materials. The aqueous adhesive agent composition comprises (A) an acid-modified polyolefin resin and (B) a core-shell-type curing agent.Type: GrantFiled: June 16, 2010Date of Patent: June 7, 2016Assignee: Sunstar Giken Kabushiki KaishaInventors: Takefumi Murai, Yoshimi Shibata
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Patent number: 9339814Abstract: Provided is a microchip having a liquid supply mechanism which can supply a solution in a micro flow path with a simple construction in which a drive source utilizing an osmotic pressure is arranged within the microchip and which controls the osmotic pressure by a control unit utilizing temperature or the like, whereby it is possible to effect drive control such as intermittent driving and continuous driving at a fixed velocity. The liquid supply mechanism using osmotic pressure includes an osmotic pump utilizing the osmotic pressure of a liquid filling chambers separated from each other by a semipermeable membrane, and a unit which varies the osmotic pressure by changing a condition of the solution in at least one of the chambers on the basis of a timing of a pumping operation.Type: GrantFiled: November 6, 2008Date of Patent: May 17, 2016Assignee: Canon Kabushiki KaishaInventor: Takashi Nakazawa
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Patent number: 9333786Abstract: The present invention provides polymeric particles comprising a polymeric matrix comprising one or more water-insoluble polymers and a laser-sensitive system encapsulated in the polymeric matrix. It also provides a process for the preparation of the polymeric particles, a composition comprising the polymeric particles, a process for the preparation of this composition, a process for forming a laser-sensitive coating layer on a substrate using this composition, a coated substrate obtainable by the coating process, a process for preparing a marked substrate and a marked substrate obtainable by the marking process.Type: GrantFiled: July 4, 2008Date of Patent: May 10, 2016Assignee: Datalase, Ltd.Inventor: Jonathan Campbell
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Patent number: 9221989Abstract: A tamper evident document, a process of preparing the tamper evident document, and a tamper evident ink. The tamper evident document includes a paper substrate having a face for providing information, and a tamper evident ink applied on the face of the paper substrate. The tamper evident ink includes (i) microcapsules having a cross-linked polymer shell and a core surrounded by the shell; and (ii) developer particles. The cores of the microcapsules include at least one color former dissolved in a carrier oil. If information on the tamper evident document is altered by force or pressure (e.g., by scraping with a knife), the microcapsules rupture and the color former reacts with the developer particles to provide a visual indication of tampering (e.g., appearance of color or color change) on the face of the document.Type: GrantFiled: August 28, 2013Date of Patent: December 29, 2015Assignee: P.H. Glatfelter CompanyInventors: John W. Stolarz, Jr., William N. Justice, James Gregory Lovensheimer
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Patent number: 9011977Abstract: Microencapsulated chemical(s), as water-soluble solid particles, are embedded in at least one the paint layers on the surface of a magnesium article used in an automobile. If the protective paint film is scratched or otherwise mechanically disturbed to expose the surface of the magnesium article the capsules will be ruptured. This will expose the encapsulated chemical(s) to ambient water enabling them to dissolve and form an aqueous solution capable of reacting with the exposed magnesium to form a protective passivating layer on the exposed magnesium to resist corrosion. In a second embodiment the encapsulated chemicals include a deliquescing compound for extraction of moisture from the atmosphere sufficient to induce dissolution of the passivating layer-forming chemical(s) and trigger the formation of the passivating layer in the absence of ambient water.Type: GrantFiled: September 11, 2009Date of Patent: April 21, 2015Assignee: GM Global Technology Operations LLCInventors: Anil K. Sachdev, Thomas C. Pederson, Mark W. Verbrugge
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Patent number: 8968873Abstract: A microfluidic device to produce polymersomes having three coaxial passageways of increasing size with fluid flowing in one direction. The first and smallest passageway contains the content of the polymersome, the middle passageway contains a block copolymer, and the largest and outer passageway contains an aqueous medium or water. The device can produce polymersomes with control of size and membrane thickness. The device will allow quantitative loading of the polymersomes in high quantities. The device is robust and easily assembled and has the ability to independently control the three streams involved in making the polymersomes.Type: GrantFiled: August 12, 2011Date of Patent: March 3, 2015Assignees: University of Connecticut, Princeton UniversityInventors: Douglas H. Adamson, Michael Stredney, Robert K. Prud'homme, Mustafa Erhan Yildiz
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Patent number: 8957122Abstract: A thermoplastic molding composition is provided, which comprises A) from 30 to 90% by weight of at least one thermoplastic polymer, B) from 10 to 70% by weight of microcapsules with a capsule core made of latent-heat-accumulator material and a polymer as capsule wall, where the latent-heat-accumulator material has its solid/liquid phase transition in the temperature range from ?20° C. to 120° C.Type: GrantFiled: November 21, 2011Date of Patent: February 17, 2015Assignee: BASF SEInventors: Stephan Altmann, Dirk Opfermann, Tina Schroeder-Grimonpont, Marco Schmidt
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Patent number: 8900630Abstract: Single-core and multi-core microcapsules are provided, having multiple shells, at least one of which is formed of a complex coacervate of two components of shell materials. The complex coacervate may be the same or different for each shell. Also provided are methods for making the microcapsules.Type: GrantFiled: January 19, 2011Date of Patent: December 2, 2014Assignee: DSM Nutritional ProductsInventors: Nianxi Yan, Yulai Jin
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Patent number: 8877250Abstract: The invention provides a hollow nano-particle comprising a crosslinked shell and a void core; and a preparation method thereof. The hollow nano-particle may be used in rubber composition, tire product, and pharmaceutical delivery system etc.Type: GrantFiled: December 20, 2006Date of Patent: November 4, 2014Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Mindaugas Rackaitis, Pat Sadhukhan
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Patent number: 8859853Abstract: Artificial seeds formed of a seamless soft capsule are provided herein. The artificial seed contains a meristematic plant cell or tissue. The artificial seed has a structure of three or more layers containing an innermost layer, an inner layer covering the innermost layer, and an outer layer covering the inner layer. The innermost layer can contain an aqueous liquid, the inner layer can be formed by an inner membrane containing hardened oil, and the outer layer can be formed of a biodegradable outer membrane.Type: GrantFiled: August 24, 2005Date of Patent: October 14, 2014Assignee: Morishita Jintan Co., LtdInventors: Masanori Asada, Yumi Hatano, Ryosei Kamaguchi, Hideki Sunohara
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Patent number: 8859288Abstract: Methods to produce pH-sensitive microparticles that have an active agent dispersed in a polymer matrix have certain advantages over microcapsules with an active agent encapsulated in an interior compartment/core inside of a polymer wall. The current invention relates to pH-sensitive microparticles that have a corrosion-detecting or corrosion-inhibiting active agent or active agents dispersed within a polymer matrix of the microparticles. The pH-sensitive microparticles can be used in various coating compositions on metal objects for corrosion detecting and/or inhibiting.Type: GrantFiled: July 5, 2012Date of Patent: October 14, 2014Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Wenyan Li, Jerry W. Buhrow, Scott T. Jolley, Luz M. Calle
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Patent number: 8808587Abstract: The present invention relates to a method of preparing a microcapsule with a double-layered structure which comprises the steps of performing an interfacial polymerization of an amine-aldehyde prepolymer on droplets containing an inorganic metal precursor selected from carboxylate and alkoxide compounds, and hydrolyzing the including inorganic precursors for formation of inorganic inner layer. The method of the present invention can prepare a microcapsule with a double-layered structure of an inorganic inner layer and a polymer outer layer, which is effective for eluting and substituting a core material inside the capsule.Type: GrantFiled: August 19, 2008Date of Patent: August 19, 2014Assignee: Korea Research Institute of Chemical TechnologyInventors: Hyun Min Jung, Yong Seok Kim, Jae Heung Lee, Jong Chan Won, Soon-Ryoung Hur
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Publication number: 20140220350Abstract: Multiple emulsions and techniques for the formation of multiple emulsions are generally described. A multiple emulsion, as used herein, describes larger droplets that contain one or more smaller droplets therein. In some embodiments, the larger droplet or droplets may be suspended in a carrying fluid containing the larger droplets that, in turn, contain the smaller droplets. As described below, multiple emulsions can be formed in one step in certain embodiments, with generally precise repeatability, and can be tailored in some embodiments to include a relatively thin layer of fluid separating two other fluids.Type: ApplicationFiled: July 5, 2012Publication date: August 7, 2014Applicant: President and Fellows of Harvard CollegeInventors: Shin-Hyn Kim, Alireza Abbaspourrad, David A. Weitz
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Patent number: 8796381Abstract: 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.Type: GrantFiled: September 17, 2011Date of Patent: August 5, 2014Assignee: Appvion, Inc.Inventors: Todd Arlin Schwantes, Michael Curley Krzoska, Gregory Stephen Kulibert, Adam Gregg Malofsky, Bernard Miles Malofsky, Nagib Maurice Ward
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Patent number: 8754141Abstract: A method that produces heat-expandable microspheres includes the use of a shell of thermoplastic resin and a non-fluorine blowing agent encapsulated therein having a boiling point not higher than the softening point of the thermoplastic resin. The method includes a step of dispersing an oily mixture containing a polymerizable component, the blowing agent, and a polymerization initiator containing a peroxydicarbonate in an aqueous dispersing medium to polymerize the polymerizable component contained in the oily mixture. The resultant heat-expandable microspheres have a shell which is less apt to become thinner than its theoretical value, contain minimum amount of resin particle inside their shell, and have excellent heat-expanding performance.Type: GrantFiled: October 9, 2012Date of Patent: June 17, 2014Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.Inventors: Toshiaki Masuda, Kenichi Kitano, Katsushi Miki, Takeshi Inohara, Takayuki Aoki
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Patent number: 8747999Abstract: The present invention related to (micro-or nano-) capsules that have two different functional groups on the outer shell of the particles that allow deposition onto the textile surfaces (i.e. exhibit substantivity) and subsequent covalent bonding of the particles onto the textile (i.e. are reactive towards the fiber).Type: GrantFiled: November 20, 2006Date of Patent: June 10, 2014Assignee: BASF SEInventors: Bryan David Grey, Kishor Kumar Mistry, Chun-tian Zhao
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Publication number: 20140037881Abstract: Fault-responsive indicator beads (10) are provided for integration into the system of a substrate such as a coating structure, a vehicle, a garment, or a package part. Each bead (10) comprises a shell (11) designed to fracture when the system encounters a fault condition. A core (12), within the shell (11), contains a material which is dormant when the shell (11) is intact and functional when the shell (11) is fractured.Type: ApplicationFiled: January 28, 2013Publication date: February 6, 2014Applicant: SCHABEL POLYMER TECHNOLOGY, LLCInventor: Norman G. Schabel, JR.
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Patent number: 8637592Abstract: The invention relates to encapsulated rubber additives in the form of microcapsules having a polymer capsule wall and a core which comprises at least one rubber additive. The invention likewise relates to a method for the production of microcapsules of this type. The microcapsules according to the invention are used during vulcanization of natural and synthetic rubbers.Type: GrantFiled: July 28, 2006Date of Patent: January 28, 2014Assignee: Schill + Seilacher GmbHInventors: Monika Jobmann, Gerald Rafler, Manfred Hensel
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Patent number: 8628851Abstract: The invention provides a method for encapsulating a liquid, which method comprises the steps of providing a suspension of droplets of the liquid to be encapsulated; stabilizing the suspension of droplets with a surfactant; adding a layered inorganic material to the stabilized suspension; and subjecting the suspension to a treatment which establishes that a shell of a hybrid material is formed around the droplets, which hybrid material comprises at least part of the inorganic material and at least part of the surfactant. The invention further provides encapsulated liquid droplets obtainable by said method.Type: GrantFiled: March 6, 2006Date of Patent: January 14, 2014Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventors: Sabine Fischer, Hartmut Rudolf Fischer, Jacobus Eversdijk, Renz Jeroen Van Ee
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Patent number: 8628852Abstract: Disclosed are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a resin (a) which is a polyurethane resin and a core layer (Q) comprising a resin (b). A core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the content of vinyl resins in the resin (b) is not more than 30 weight %. Such resin particles have a uniform particle diameter and are excellent in electrostatic properties, thermal and storage stability and thermal characteristics.Type: GrantFiled: July 27, 2006Date of Patent: January 14, 2014Assignee: Sanyo Chemical Industries Ltd.Inventors: Takashi Akutagawa, Tsuyoshi Izumi
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Publication number: 20140011033Abstract: Each capsule comprises a liquid core (14) and a gelled shell (16) comprising a gelled polyelectrolyte completely encapsulating the liquid core (14) at the periphery thereof. The gelled shell (16) is suitable for retaining the liquid core (14) when the capsule (12) is immersed in a gas. The liquid core (14) comprises an intermediate drop (18) of an intermediate phase, the intermediate phase being placed in contact with the gelled shell (16), and at least one internal drop (20) of an internal phase placed in the intermediate drop (18). The ratio of the volume of the core (14) to the volume of the gelled shell (16) is greater than 2, advantageously is greater than 50.Type: ApplicationFiled: December 29, 2011Publication date: January 9, 2014Applicant: CAPSUMInventors: Enric Santanach Carreras, Yan Pafumi
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Patent number: 8535802Abstract: The present invention relates to an emulsification method and an emulsification apparatus, capable of attaining easy control of particle size and particle size distribution, and simple scale-up and maintenance, and providing an emulsifying amount sufficient for industrial production. Namely, the method comprises continuously and successively passing two or more types of liquids which are substantially immiscible with each other through two or more mesh members disposed at certain intervals in the presence of an emulsifier to thereby perform emulsification, and the emulsification apparatus as an apparatus for carrying out the method comprises liquid feed pumps for feeding two or more types of liquids which are substantially immiscible with each other, and a cylindrical flow passage to which the two or more types of liquids are fed by the liquid feed pumps, the cylindrical flow passage including a predetermined number of wire gauzes disposed therein at a predetermined interval.Type: GrantFiled: October 9, 2008Date of Patent: September 17, 2013Assignee: JX Nippon Oil & Energy CorporationInventors: Yasuo Togami, Akira Takagi, Hideko Hayashi
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Patent number: 8526099Abstract: A method for manufacturing microcapsules is provided. The microcapsules each include an electrophoretic dispersion liquid containing at least one type of electrophoretic particles in a dispersion medium, and a capsule body made of an organic polymer and containing the electrophoretic dispersion liquid. The method includes forming droplets of the electrophoretic dispersion liquid by dispersing the electrophoretic dispersion liquid in an polar dispersion medium, and forming the capsule bodies by mixing a polymerization initiator and a polymerizable surfactant having a hydrophilic group, a hydrophobic group and a polymerizable group with the polar dispersion medium so as to coat the droplets with the polymerizable surfactant and induce a polymerization reaction to form the organic polymer.Type: GrantFiled: April 19, 2006Date of Patent: September 3, 2013Assignee: Seiko Epson CorporationInventors: Hitoshi Yamamoto, Takeo Kawase, Toshiyuki Miyabashi
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Patent number: 8524829Abstract: The invention involves methods and products related to the micronization of hydrophobic drugs. A method of micronizing hydrophobic drugs using a set of solutions including an aqueous solution is provided. The invention also relates to products of micronized hydrophobic drugs and related methods of use.Type: GrantFiled: June 17, 2008Date of Patent: September 3, 2013Assignee: Brown University Research FoundationInventors: Edith Mathiowitz, Christopher Thanos, Zhi Liu
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Publication number: 20130224489Abstract: A quad-centric nozzle and system for hydrocapsule encapsulation is disclosed. In at least one embodiment, a quad-centric nozzle is disclosed for encapsulating discrete droplets of liquid by generating a continuous coating or layer of a polymerizable liquid which is substantially immiscible with the core liquid. In at least one embodiment, the quad-centric nozzle includes: a material feed port assembly, a polymer feed port assembly, a first water feed port assembly, a second water feed port assembly and an encapsulated material exit port assembly. In at least one embodiment, the quad-centric nozzle is configured for use in a system for hydrocapsule encapsulation having a pressure control system, a water control system and sparging column, and an ultraviolet exposure chamber system.Type: ApplicationFiled: February 29, 2012Publication date: August 29, 2013Applicant: HYDROCAPSULE, INC.Inventors: Michael Pitsokos, Ara Manukian, William Toreki