By Gelling Patents (Class 423/338)
  • Patent number: 10590001
    Abstract: The invention relates to an aerogel composite comprising an aerogel component and a silica particle, and being superior in thermal insulation properties and flexibility.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 17, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tomohiko Kotake, Masato Miyatake, Hikari Murai
  • Patent number: 10563016
    Abstract: The present invention pertains to an aerogel having a thermal conductivity of 0.03 W/m·K or less and a compressive elasticity modulus of 2 MPa or less at 25° C. under atmospheric pressure.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: February 18, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tomohiko Kotake, Masato Miyatake, Hikari Murai
  • Patent number: 10544049
    Abstract: The present invention is directed to a process for preparing an inorganic aerogel, the process comprising the steps of providing a composition (I) suitable to form an inorganic gel with a gelation time tG, spraying the composition (I) into supercritical carbon dioxide at a spraying time tS to obtain gel particles, and drying the gel particles obtained in step (ii) by supercritical liquid extraction, wherein the ratio tS:tG is in the range of from 0.2 to 0.99. The present invention further is directed to the inorganic aerogel as such as well as the use of the inorganic aerogel according to the invention in particular for medical and pharmaceutical applications or for thermal insulation.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 28, 2020
    Assignee: BASF SE
    Inventors: Wibke Loelsberg, Marc Fricke, Mark Elbing, Dirk Weinrich
  • Patent number: 10525671
    Abstract: A process of providing a coating having a hydrophobic, electrically conductive porous metallic surface on a substrate includes forming a metal-infused plastic lattice that includes a plastic lattice infused with metal particles, and then removing the plastic lattice from the metal-infused plastic lattice. A surface of at least some of the metal particles is textured to increase hydrophobicity by exposing the surface to laser light. In some embodiments, the metal particles are exposed to laser light from a femtosecond pulse laser to produce hydrophobic metal particles before the metal-infused plastic lattice is formed. In other embodiments, the surface of at least some of the metal particles is exposed to laser light from a femtosecond pulse laser after the metal-infused plastic lattice is formed.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: January 7, 2020
    Assignee: International Business Machines Corporation
    Inventors: Brandon M. Kobilka, Joseph Kuczynski, Jacob T. Porter, Jason T. Wertz
  • Patent number: 10526207
    Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, which includes preparing metal oxide-silica composite precipitates by adding a metal salt solution to a silicate solution and performing a reaction, and drying the metal oxide-silica composite precipitates by irradiation with infrared rays in a wavelength range of 2 ?m to 8 ?m, and a metal oxide-silica composite aerogel having excellent physical properties, such as low tap density and high specific surface area, as well as excellent pore properties prepared by the method.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: January 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jong Hun Kim, Jae Hoon Choi, Je Kyun Lee
  • Patent number: 10435303
    Abstract: A improved sol-gel process is described for the production of silica aerogels, in particular from plant raw materials, in particular from rice processing waste.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: October 8, 2019
    Assignee: N.A.M.—NANO ANALYSIS & MATERIALS S.R.L.
    Inventors: Stefania Grandi, Piercarlo Mustarelli, Andrea Nulli, Cesare Achilli
  • Patent number: 10377637
    Abstract: In a method for manufacturing an aerogel, an acid is added to a first aqueous high-molar-ratio silicate solution that includes silica particles having a mean particle diameter of from 1 nm to 10 nm and that is alkaline, to produce a gel. The gel is subjected to a dehydration condensation to obtain a hydrogel. The hydrogel is converted into a hydrophobized gel. Then, the hydrophobized gel is dried. According to the method, an aerogel having a pore volume of from 3.00 cc/g to 10 cc/g, a mean pore diameter of from 10 nm to 68 nm, and a specific surface area of from 200 m2/g to 475 m2/g can be prepared.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: August 13, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shigeaki Sakatani, Kazuma Oikawa
  • Patent number: 10351434
    Abstract: The present invention relates to a method for preparing spherical silica aerogel granules and spherical silica aerogel granules prepared thereby. The method for preparing spherical silica aerogel granules, which is suitable for mass production because droplets of a water glass solution are uniformly dispersed with a uniform size in a non-aqueous solvent using a surfactant in a certain step to reduce a process time and enhance productivity, may be provided. The spherical silica aerogel granules having a uniform size prepared by the method may be provided, wherein the spherical silica aerogel granules have a high working property and excellent flowability.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 16, 2019
    Assignees: LG Chem, Ltd., Inha University Research and Business Foundation
    Inventors: Ye Hon Kim, Je Kyun Lee, Hae Jin Hwang, Kyoung Jin Lee
  • Patent number: 10343923
    Abstract: The system for preparing silica aerogel comprises a raw material supply part transferring at least one raw material of de-ionized water, water glass, a surface modifier, an inorganic acid, and an organic solvent to a mixing part, the mixing part mixing the raw materials transferred from the raw material supply part to produce silica wet gel, a separating part separating at least one raw material of the raw materials from the mixture containing the silica wet gel transferred from the mixing part, a drying part drying the silica wet gel transferred from the separating part to produce the silica aerogel, a recovery part recovering a portion of the vaporized raw material of the raw materials used in at least one of the mixing part and the drying part, and a heat transfer part transferring heat to at least one of the mixing part and the drying part.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 9, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Dong Kwon Lee, Ye Hon Kim, Jong Ku Lee, Je Kyun Lee
  • Patent number: 10253984
    Abstract: A component includes a substrate formed from a metallic or ceramic material and a thermal barrier coating positioned on the substrate. The component also includes a ceramic reflective coating integral with the thermal barrier coating. The reflective coating includes an arrangement of features configured to reflect at a wavelength at which peak emission from a heat source occurs. A method of making a component includes positioning a thermal barrier coating on the component and determining a wavelength emitted from a heat source. The method of making a component also includes producing an arrangement of features using a metamaterial to form a reflective coating and integrating the reflective coating with the thermal barrier coating.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: April 9, 2019
    Assignee: United Technologies Corporation
    Inventors: Matthew Robert Pearson, Joseph V. Mantese, Rhonda R. Willigan
  • Patent number: 10227238
    Abstract: A method of preparing a particulate material comprising the steps of adding silicic acid solution, optionally doped with aluminum, optionally added to a slurry of pre-existing nanoparticles at a neutral to slightly acidic pH of no more than seven, and at a temperature of about 20° to 30° C. This yields a polysilicate particulate dispersion. Then, the pH of the dispersion is raised to greater than seven, to stabilize/reinforce particles of the particulate dispersion. Optionally, the particles may be dried, and have increased porosity and surface area.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: March 12, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Francois Batllo, Brian T. Holland, John M. Krasniewski, Kim M. Long, Michael A. Romba, Sascha Welz, David P. Workman
  • Patent number: 10184046
    Abstract: The method of producing stannous oxide includes: a Sn ion-containing acid solution forming step (S01); a first neutralizing step (S02), which is a step of forming Sn precipitates by adding one or more of alkaline solutions of ammonium carbonate, ammonium bicarbonate, and aqueous ammonia to the Sn ion-containing acid solution to retain pH at 3-6 therein; a Sn precipitate separating step (S03); a Sn precipitate dispersing step (S04), which is a step of dispersing the separated Sn precipitates in a solvent liquid to obtain a dispersion liquid; and a second neutralizing step (S06), which is a step of forming SnO by adding an alkaline solution to the dispersion liquid of the Sn precipitates and then by heating, wherein Na, K, Pb, Fe, Ni, Cu, Zn, Al, Mg, Ca, Cr, Mn, Co, In, and Cd reside in the Sn ion-containing acid solution in the first neutralizing step (S02).
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: January 22, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Takuma Katase, Hirotaka Hirano
  • Patent number: 10174227
    Abstract: A sealant composition is provided; the sealant composition comprises latex emulsion, nanoporous particles, surfactant, anti-freezing agent, wetting agent, and water. The sealant composition of the present application achieves a good sealing performance for the puncture of the tire. Furthermore, the sealant composition is easy to use and non-perishable, and has a long shelf life, which endows the sealant composition with a good market prospect.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 8, 2019
    Assignee: TOP ALLIANCE TECHNOLOGY LIMITED
    Inventors: Koon Fung Lam, Wai Ming Chan
  • Patent number: 10160189
    Abstract: A panel assembly that includes a core having first and second opposing major surfaces, a first laminate skin secured to the first major surface of the core, a second laminate skin secured to the second major surface of the core, and at least a first layer of polyimide aerogel incorporated into one of the first laminate skin or the second laminate skin.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 25, 2018
    Assignee: C&D ZODIAC, INC.
    Inventors: Panade Sattayatam, James Del Pinto, Douglas Long
  • Patent number: 10155060
    Abstract: A gel composition for air freshening or disinfecting, comprising a silicon alkoxide or colloidal silica, a volatile or gaseous fragrance and/or disinfectant, water, an acid or base catalyst, a water-soluble solvent, and optionally other volatile components and additives, and a method for preparing the same. The gel can be transparent or colored, has a homogeneous texture and a soft to rigid structure, and contains volatile or gaseous components from 0 vol % to 85 vol % for scented materials (fragrance and oils) and/or 0-8000 ppm of disinfectant, which are released at a steady rate under ambient conditions, controlled by the shape and opening of the gel container. Botanicals or plastic decorations may be added into the gel to improve its aesthetic appeal. The preparation method is easier and requires less energy consumption and the gel is used as an air freshener or disinfectant.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 18, 2018
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: King Lun Yeung, Wei Han, Shengli Cao, Wai Kwong Ching
  • Patent number: 10106418
    Abstract: Graphene aerogels with high conductivity and surface areas including a method for making a graphene aerogel, including the following steps: (1) preparing a reaction mixture comprising a graphene oxide suspension and at least one catalyst; (2) curing the reaction mixture to produce a wet gel; (3) drying the wet gel to produce a dry gel; and (4) pyrolyzing the dry gel to produce a graphene aerogel. Applications include electrical energy storage including batteries and supercapacitors.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: October 23, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Peter J. Pauzauskie, Marcus A. Worsley, Theodore F. Baumann, Joe H. Satcher, Jr., Juergen Biener
  • Patent number: 10058836
    Abstract: The present invention relates to a process for producing aerogels, comprising the following successive steps: a) formation or casting of a sol in a reactor, optionally in the presence of a reinforcing material and/or an additive, b) complete gelling of the sol into a lyogel; c) optionally hydrophobization of the lyogel resulting in a hydrophobized lyogel; d) drying of the optionally hydrophobized lyogel so as to obtain an aerogel; said process being characterized in that the complete gelling step b) comprises dielectric heating by microwave or high-frequency electromagnetic irradiation, inducing an increase in temperature so as to reach a set temperature for complete gelling Tb in a range of from 100° C. to 200° C., preferably from 100° C. to 150° C., the temperature Tb being maintained in this range for a period of time U sufficient to attain complete gelling of the lyogel, and more particularly the end of syneresis of the lyogel.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 28, 2018
    Assignee: ENERSENS
    Inventors: Pierre-Antoine Bonnardel, Sophie Chausson
  • Patent number: 10042092
    Abstract: A heat-insulation material does not cause deterioration in heat-insulation performance and any loss of components included therein, and possesses an excellent radiation-preventing function. The heat-insulation material includes: a first heat-insulation layer that includes a first silica xerogel and a first radiation-preventing material; and a third heat-insulation layer that includes a third silica xerogel and second fibers, wherein the first heat-insulation layer and the third heat-insulation layer are layered. An electronic device includes the heat-insulation material. Yet further disclosed is a method for producing the heat-insulation material.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 7, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tooru Wada, Shigeaki Sakatani
  • Patent number: 9937556
    Abstract: A method of preparing a metal nanorod. The method includes seeding a metal nanoparticle within the lumen of a nanotube, and growing a metal nanorod from the seeded metal nanoparticle to form a metal nanorod-nanotube composite. In some cases, the nanotube includes metal binding ligands attached to the inner surface. Growing of the metal nanorod includes incubating the seeded nanotube in a solution that includes: a metal source for the metal in the metal nanorod, the metal source including an ion of the metal; a coordinating ligand that forms a stable complex with the metal ion; a reducing agent for reducing the metal ion, and a capping agent that stabilizes atomic monomers of the metal. Compositions derived from the method are also provided.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: April 10, 2018
    Assignee: The Regents of the University of California
    Inventors: Yadong Yin, Chuanbo Gao
  • Patent number: 9884268
    Abstract: Embodiments of the present invention are directed to a porous monolith polymeric composition having utility in catalysis, chromatography, filtration, and electro-kinetic pumps, devices incorporating such composition and methods of making and using such monoliths. In some embodiments the monoliths can include a skeletal core having a substantially homogeneous polymeric composition of two or more organic silane monomers and pores that define an interstitial volume in the skeletal core. The pores can include macropores and less than 5% of the interstitial volume can be mesopores. Such monoliths can, in some embodiments, be disposed in a housing having at least one wall that defines a chamber such that all fluid flowing into the chamber passes through the pores of the monolith.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 6, 2018
    Assignee: WATERS TECHNOLOGIES CORPORATION
    Inventors: Moon Chul Jung, Hua Yang, Edouard S. P. Bouvier
  • Patent number: 9863060
    Abstract: Method for manufacturing a single crystal according to a CZ method, including: pre-examining a correlation between an Al/Li ratio in a quartz raw material powder used for producing the quartz crucible, a use time of the crucible, a devitrification ratio at the use time, and occurrence or nonoccurrence of melt leakage attributable to the devitrification part; setting a range of the devitrification ratio of the quartz crucible in order not to generate the melt leakage, and determining a maximum use time of the quartz crucible according to the Al/Li ratio so as to fall within the set range of the ratio, on the basis of the correlation; and growing the single crystal by using the quartz crucible in the range of the maximum use time. This provides a manufacturing method which can efficiently use a quartz crucible to grow a single crystal while preventing occurrence of melt leakage.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: January 9, 2018
    Assignee: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Yuuichi Miyahara, Shou Takashima, Yasuhiko Sawazaki, Atsushi Iwasaki
  • Patent number: 9834446
    Abstract: Provided are a method for preparing a hydrophobic silica aerogel by the combined use of a first surface modifier and a second surface modifier, and a hydrophobic silica aerogel prepared by using the method. A hydrophobic silica aerogel having excellent physical properties and pore characteristics as well as a high degree of hydrophobicity may be prepared with high efficiency by the preparation method according to the present invention.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: December 5, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Mi Ri Kim, Kyoung Shil Oh, Ye Hon Kim, Dong Hyun Cho, Young Sam Kim, Sung Min Yu, Jin Hee Oh, Je Kyun Lee
  • Patent number: 9492809
    Abstract: A carbon oxides conversion process includes reacting a carbon oxide containing process gas containing hydrogen and/or steam and containing at least one of hydrogen and carbon monoxide in the presence of a catalyst including shaped units formed from a reduced and passivated catalyst powder, the powder including copper in the range 10-80% by weight, zinc oxide in the range 20-90% by weight, alumina in the range 5-60% by weight and optionally one or more oxidic promoter compounds selected from compounds of Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare earths in the range 0.01-10% by weight, wherein said shaped units have a reduced to as-made mean horizontal crush strength ratio of ?0.5:1 and a copper surface area above 60 m2/g Cu.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: November 15, 2016
    Assignee: Johnson Matthey PLC
    Inventors: Colin William Park, Brian Peter Williams, Graeme Douglas Campbell, David Allan Buckworth
  • Patent number: 9446959
    Abstract: The synthetic amorphous silica powder of the present invention is obtained by applying a spheroidizing treatment to a granulated silica powder, and by subsequently cleaning and drying it so that the synthetic amorphous silica powder has an average particle diameter D50 of 10 to 2,000 ?m; wherein the synthetic amorphous silica powder has: a quotient of greater than 1.35 and not more than 1.75 obtained by dividing a BET specific surface area of the powder by a theoretical specific surface area calculated from the average particle diameter D50; a real density of 2.10 to 2.20 g/cm3; an intra-particulate porosity of 0 to 0.05; a circularity of 0.50 to 0.75; and an unmolten ratio of greater than 0.25 and not more than 0.60.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: September 20, 2016
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventor: Toshiaki Ueda
  • Patent number: 9370767
    Abstract: A method of forming a metal oxide composite, the method comprising mixing a metal oxide, at least two monomers and a dispersant to produce a slurry; gel casting the slurry to produce a green metal oxide composite; and sintering the green metal oxide composite to produce the metal oxide composite. A metal oxide composite formed according to the method. Use of the metal oxide composite, for catalyzing hydrolysis of metal borohydride to produce hydrogen.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: June 21, 2016
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Lan Zhang, Siew Hwa Chan, Hongquan He
  • Patent number: 9327460
    Abstract: A method manufactures an optical element having a surface that includes cells filled with an aerogel that does not crack during its manufacture or during a subsequent step of impregnating the aerogel with a liquid. The disclosure also relates to the optical elements that can be obtained using the method.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 3, 2016
    Assignees: Essilor International (Compagnie Generale D'Optique), Centre National de la Recherche Scientifique—CNRS
    Inventors: Claudine Biver, Jean-Paul Cano, Rémi Courson, Sylvie Calas-Etienne, Pascal Etienne
  • Patent number: 9322596
    Abstract: The formation of cracks is suppressed in a drying process for a water-containing wet gel without modifying the gel and without using a reagent. A water-containing wet gel is dried by removing water and then removing the remaining solvent. For example, a wet-gel container storing water-containing wet gel, containing a wet gel and a solvent, is heated. The solvent is vaporized into an upper space of the wet-gel container. The solvent-containing gas diffuses into a dehydrating agent container, and water is removed by a dehydrating agent. This state is maintained for one to two days to remove almost all amount of water from the solvent. Thereafter, the dehydrating agent container is detached and the wet gel, from which water has been removed, is heated to almost completely remove the solvent, and further heated at a higher temperature to completely remove the solvent to obtain a crack-free dry gel.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: April 26, 2016
    Assignee: TOKYO METROPOLITAN UNIVERSITY
    Inventors: Koichi Kajiwara, Ryohei Maehana, Shungo Kuwatani, Kiyoshi Kanamura
  • Patent number: 9249075
    Abstract: The present invention relates to a process for producing porous or finely divided solid inorganic materials, the surface of which has been modified with at least one organic substance, under supercritical conditions, wherein the supercritical conditions are lowered by addition of an inert organic substance.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: February 2, 2016
    Assignee: BASF SE
    Inventors: Johann Martin Szeifert, Michael Kutschera
  • Patent number: 9228029
    Abstract: A process for preparation of silica xerogel catalyst support particles having high surface areas involves ageing a silica hydrogel at a pH from 3 to 5 and at a temperature of 45° C. or more. The ageing at low pH leads to a silica gel which may be converted to a xerogel having a pore volume of 1.5 cm3/g or more and a surface area of 600 m2/g or more by removal of liquid from the pore structure by solvent exchange with a liquid solvent having a surface tension of 35 mN/m or less. The resulting particles are useful for carrying catalyst metal compounds, such as a chromium compounds, in the pore structure to act as catalyst precursors. These catalyst precursors may be activated into porous catalyst particles suitable for use for olefin polymerization to provide high activity and for forming high molecular weight polymers (low MI polymers) with good crack resistance.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: January 5, 2016
    Assignee: PQ CORPORATION
    Inventors: Parag Rasiklal Shah, Yatao Rachel Hu, Myoung Kie Lee
  • Patent number: 9133280
    Abstract: Methods and materials are described for preparing organic-inorganic hybrid gel compositions where a sulfur-containing cross-linking agent covalently links the organic and inorganic components. The gel compositions are further dried to provide porous gel compositions and aerogels. The mechanical and thermal properties of the dried gel compositions are also disclosed.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: September 15, 2015
    Assignee: ASPEN AEROGELS, INC.
    Inventors: Owen R Evans, Wenting Dong, Kiranmayi Deshpande
  • Patent number: 9113628
    Abstract: A flowering stimulant composition with Nitrobenzene for Agricultural and Horticultural flowering crops including Nitrobenzene as an Active ingredient, with Natural/Synthetic/Ionic (or) Non Ionic chemical surfactant and base with petro (or) Non petro solvent base. A typical example of 100 kg of the composition has 5 to 10 kgs. of Linear alkyl Benzene (Acid slurry), 1 to 2 kgs. of Sodium Hydroxide, 2 to 4 kgs. of Urea, 20 kg of Nitro Benzene, and Quantum sufficientum Filler & stabilizer. In the case of 100 kgs. of granular formulation, the composition has 75 kg or 80 kg of Roasted or unroasted Bentonite clay or silica quartz sand granules, 10 kg or 15 kg Nitrobenzene and Quantum sufficientum Coating agent and De-activating Chemicals.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: August 25, 2015
    Assignee: DEVI CROP SCIENCE PRIVATE LIMITED
    Inventor: Theenachandran Rathinasamy
  • Patent number: 9090716
    Abstract: A process for preparation of silica xerogel catalyst support particles having high surface areas involves ageing a silica hydrogel at a pH from 3 to 5 and at a temperature of 45° C. or more. The ageing at low pH leads to a silica gel which may be converted to a xerogel having a pore volume of 1.5 cm3/g or more and a surface area of 600 m2/g or more by removal of liquid from the pore structure by solvent exchange with a liquid solvent having a surface tension of 35 mN/m or less. The resulting particles are useful for carrying catalyst metal compounds, such as a chromium compounds, in the pore structure to act as catalyst precursors. These catalyst precursors may be activated into porous catalyst particles suitable for use for olefin polymerization to provide high activity and for forming high molecular weight polymers (low MI polymers) with good crack resistance.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: July 28, 2015
    Assignee: PQ CORPORATION
    Inventors: Parag Rasiklal Shah, Yatao Rachel Hu, Myoung Kie Lee
  • Patent number: 9057008
    Abstract: A porous silica material disclosed in the present application is a porous silica material in which a plurality of silica particles are connected to one another three-dimensionally, wherein: a density of the porous silica material is less than 220 kg/m3; a particle diameter of the silica particles is 3.5 nm or more; and the water content of the porous silica material is 8 wt % or less.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: June 16, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yuriko Kaneko, Takuya Iwamoto, Ushio Sangawa, Masahiko Hashimoto, Norihisa Mino
  • Patent number: 9040448
    Abstract: The present invention relates to a method of preparing a spherical mesoporous silica structure containing silver nanoparticles dispersed therein by adding a silver nitrate solution to an aqueous surfactant solution and performing a sol-gel process and to spherical mesoporous silica prepared thereby. The spherical mesoporous silica is cost-effective compared to a conventional method that uses silver nanoparticles as a raw material, because the silver nitrate solution that is inexpensive compared to silver nanoparticles is used. Also, the spherical mesoporous silica can be with high productivity in large amounts, and thus is easily commercialized. Moreover, because silver nanoparticles are incorporated into the pores of the mesoporous silica, the silver nanoparticles are used stably and do not change color and odor. In addition, the spherical mesoporous silica exhibits various additional effects, including far-infrared ray emission and deodorization, attributable to silica.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 26, 2015
    Assignee: THERMOLON KOREA CO., LTD.
    Inventors: Chung Kwon Park, Sang Cheol Han
  • Patent number: 8961919
    Abstract: A method of preparing silica aero-gel powders having a short preparation time and stable preparation processes. In the method, the silica aerogel powders are generated by using a water glass solution, an inorganic acid, an organosilane compound and an organic solvent. The method includes dispersion-solution generating, gelating and solvent exchanging and drying. In the dispersion-solution generating, a dispersion solution is generated by dispersing the water glass solution and the organosilane compound in the organic solvent. In the gelating and solvent exchanging, silica hydrogel is generated by adding the inorganic acid to the dispersion solution and simultaneously performing gelating and solvent-exchanging. In the drying, the silica aerogel powders are generated by drying the silica hydro-gel.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 24, 2015
    Assignee: Jios Aerogel Limited
    Inventors: Young Chul Joung, Myung Je Roe, Young Jong Yoo, Jong Chul Park, Hee Jung Choi, Min Woo Kim
  • Patent number: 8936772
    Abstract: A silica containing composition is disclosed. The silica composition comprising a compound having the following formula (SiO2)x(OH)yMzOaF: wherein M optionally exists and said M is at least one of the following metal or metalloid cations: boron, magnesium, aluminum, calcium, titanium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, molybdenum, palladium, silver, cadmium, tin, platinum, gold, and bismuth; wherein F optionally exists and said F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of 0.01-100%; and wherein the molar ratio of y/x is equal to 0.01-0.5, the molar ratio of x/z is equal to 0.1-300, and the molar ratio of a/z is dependent on the nature of the metal oxide formed.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: January 20, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Bruce A. Keiser, Nicholas S. Ergang, Richard Mimna
  • Patent number: 8932549
    Abstract: A silica-containing composition is disclosed. The composition comprises a compound having the following formula: (SiO2)x(OH)yMzOaF.B: wherein M is at least one of the following: boron, magnesium, aluminum, calcium, titanium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, molybdenum, palladium, silver, cadmium, tin, platinum, gold, and bismuth; wherein F optionally exists and comprises at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of about 0.01 to about 100%. The molar ratio of y/x is equal to about 0.01 to about 0.5, the molar ratio of x/z is equal to about 0.5 to about 300, and the molar ratio of a/z is dependent on the nature of the metal oxide. B comprises a hygroscopic solid and preferably comprises at least one alkaline earth oxide, lanthanide oxide, or combinations thereof.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: January 13, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Nicholas S. Ergang, Ian Saratovsky, Hung-Ting Chen
  • Patent number: 8906973
    Abstract: Disclosed and claimed herein are hybrid silica aerogels containing non-polymeric, functional organic materials covalently bonded at one or both ends to the silica network of the aerogels through a C—Si bond between a carbon atom of the organic material and a silicon atom of the aerogel network. Methods of their preparation are also disclosed.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: December 9, 2014
    Assignee: Aspen Aerogels, Inc.
    Inventors: Wendell E Rhine, Decio Coutinho, Kiranmayi Deshpande
  • Patent number: 8894893
    Abstract: A method of preparing transparent or nontransparent silica aerogel granules. The method includes forming a granular wet gel by spraying a silica sol into alcohol, the silica sol being prepared by mixing a water glass solution or an opacifier-containing water glass solution with an inorganic acid solution, forming a granular alcohol gel through gelation aging and solvent substitution of the granular wet gel in alcohol, hydrophobically modifying the surface of the granular alcohol gel using an organic silane compound, and drying the surface modified gel at ambient pressure or in a vacuum. The method may prepare silica aerogel granules in a short period of time through heat treatment at a relatively low temperature and at ambient pressure or in a vacuum, thereby ensuring excellent economic feasibility, continuity and reliability, suited for mass production.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: November 25, 2014
    Assignee: Korea Institute of Energy Research
    Inventors: Young-Soo Ahn, Jeong-gu Yeo, Churl-Hee Cho
  • Patent number: 8883110
    Abstract: The synthetic amorphous silica powder of the present invention is characterized in that it comprises a synthetic amorphous silica powder obtained by applying a spheroidizing treatment to a granulated silica powder, and by subsequently cleaning and drying it so that the synthetic amorphous silica powder has an average particle diameter D50 of 10 to 2,000 ?m; wherein the synthetic amorphous silica powder has: a quotient between 1.35 exclusive and 1.75 inclusive obtained by dividing a BET specific surface area of the powder by a theoretical specific surface area calculated from the average particle diameter D50; a real density of 2.10 to 2.20 g/cm3; an intra-particulate porosity of 0 to 0.05; a circularity between 0.50 inclusive and 0.75 inclusive; and a spheroidization ratio between 0.20 inclusive and 0.55 exclusive.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: November 11, 2014
    Assignee: Mitsubishi Materials Corporation
    Inventor: Toshiaki Ueda
  • Patent number: 8877119
    Abstract: Nanocomposites of multi-phase metal oxide ceramics have been produced from water soluble salts of the resulting metal oxides by a foaming esterification sol-gel method. The evolution of volatile gases at elevated temperature during the esterification reaction causes the formation of a foam product. Nanocomposites of multi-phase metal oxide ceramics have also been produced by a cation polymer precursor method. In this second method, the metal cations are chelated by the polymer and the resulting product is gelled and foamed. Calcination of the resulting foams gives nanocomposite powders with extremely fine, uniform grains and phase domains. These microstructures are remarkably stable both under post-calcination heat treatment and during consolidation by hot-pressing.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: November 4, 2014
    Assignee: University of Connecticut Center for Science and Technology and Commercialization
    Inventors: Eric H. Jordan, Steven L. Suib, Aparna Iyer, Jacquelynn Garofano, Chun-Hu Chen
  • Patent number: 8835515
    Abstract: An aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and a pH of at least 10.5, and an S-value within the range of from 10 to 45% and/or contains silica-based particles having a specific surface area of at least 550 and less than about 1200 m2/g SiO2, and wherein the sol is substantially free from aluminium.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: September 16, 2014
    Assignee: Akzo Nobel, N.V.
    Inventors: Michael Persson, Marek Tokarz, Maj-Lis Dahlgren, Hans Erik Johansson-Vestin
  • Publication number: 20140161707
    Abstract: In a process for producing a spinnable silica sol material, a viscosity value VS is stipulated which the spinnable silica sol material should have after ripening. A viscosity value VR corresponding to VS which the silica sol material has before ripening is ascertained. An aqueous acid solution and a hydrolysable silicon compound are combined. The combined mixture is evaporated to give a single-phase solution while measuring the viscosity of the mixture and the evaporation process is terminated upon reaching the viscosity value VR. The single-phase solution thus obtained is then ripened to give a silica sol material with the viscosity value VS. The process exhibits reduced waste and more exact reproducibility of the spinning sol properties during the synthesis and an increased space-time yield in the production of biologically degradable and/or resorbable fibres and nonwoven fabrics.
    Type: Application
    Filed: July 17, 2012
    Publication date: June 12, 2014
    Inventors: Ekkehard Barth, Bastian Mahr
  • Patent number: 8741252
    Abstract: Disclosed is a process for producing porous materials by replacing a first solvent in a wet material containing the first solvent with a second solvent in a high pressure condition and drying the resulting wet material which process comprises a mixed solvent feeding step for feeding a mixed solvent composed of a solvent identical to or of the same kind as the first solvent and the second solvent to the wet material.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: June 3, 2014
    Assignee: Kobe Steel, Ltd.
    Inventors: Katsumi Watanabe, Masahiro Yamagata
  • Publication number: 20140120021
    Abstract: The present invention relates to a new synthetise for the preparation of mesoporous structures including mesoporous materials with chiral morphologies and mesoporous materials with local or surface chirality. The method can be used for manufacturing controlled drug delivery devices, for example for delivery of folic acid, and fluorescent particles.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 1, 2014
    Applicant: Nanologica AB
    Inventor: Alfonso Garcia-Bennett
  • Patent number: 8679437
    Abstract: The present application discloses a process for preparing silica particles, said process comprising the step of mixing (I) an aqueous phase and (II) an oily phase comprising pre-polymerized tetraalkoxy orthosilicate, one or more alcohols, and optionally one or more polyalkylene glycols, wherein said aqueous phase comprises, in an aqueous solvent, one or more C6-30-alkyl modified polysaccharides, and optionally one or more polyalkylene glycols.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: March 25, 2014
    Assignee: FEF Chemicals A/S
    Inventor: Thomas Everdahl
  • Publication number: 20140057111
    Abstract: The present invention provides a globular-shaped metal oxide powder with excellent thermal insulation performance and reduced bulk density, and a method of manufacture thereof, wherein the metal oxide powder has globular independent particles as the main component, and has BET specific surface area of 400 to 1000 m2/g, BJH pore volume of 2 to 8 mL/g, and oil absorption of no less than 250 mL/100g. The present invention also provides a method for manufacturing the hollow and globular shaped metal oxide powder including the step of forming an O/W/O emulsion.
    Type: Application
    Filed: April 25, 2012
    Publication date: February 27, 2014
    Applicant: TOKUYAMA CORPORATION
    Inventors: Wakana Tomimatsu Fujimoto, Tadahiro Fukuju, Hiroshi Numa
  • Patent number: 8652432
    Abstract: A method of producing a porous silica material includes: preparing a raw material solution containing silicon alkoxides including diisobutyldimethoxysilane and tetramethoxysilane in such a mass ratio that a mass of the diisobutyldimethoxysilane is 0.25 or more and 1 or less per mass of the tetramethoxysilane, and a solvent; obtaining a wet gel by adding, to the raw material solution, an aqueous solution containing a catalyst for promoting hydrolysis and condensation polymerization of the silicon alkoxides, the aqueous solution having a pH of 8.9 or more and 11.3 or less; washing the wet gel; and drying the washed wet gel under supercritical conditions.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: February 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Yuriko Kaneko, Takuya Iwamoto, Ushio Sangawa, Masahiko Hashimoto, Norihisa Mino
  • Patent number: 8647599
    Abstract: The present invention relates to a process for preparing TiO2/SiO2 mixed oxides or the hydrates and/or oxide hydrates thereof comprised of 0.5 to 95 wt % SiO2 and the balance as TiO2, each referring to the completely calcined product, by using titanium alcoholates and aqueous silica sol. Moreover, the invention relates to the use of these mixed oxides as catalyst carriers.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: February 11, 2014
    Assignee: Sasol Germany GmbH
    Inventors: Jurgen Schimanski, Kai Dallmann, Sohnke Rolfs, Kai Dolling, Andrea Brasch, Ute Freese
  • Patent number: 8647557
    Abstract: Disclosed herein is a method for producing a sheet including a silica aerogel, the method including (S1) gelling a water glass solution in a mixture of an alcohol and water to prepare a wet gel, (S2) hydrophobically modifying the surface of the wet gel with a non-polar organic solvent, an organosilane compound and an alcohol, (S3) dissolving the hydrophobically modified silica gel and a polymer in an aprotic organic solvent to prepare an electrospinning solution, and (S4) electrospinning the electrospinning solution to produce a fiber web including a silica aerogel, and a sheet in which a polymer and a silica aerogel coexist in the form of a fiber.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: February 11, 2014
    Assignee: Korea Institute of Energy Research
    Inventors: Jeong-Gu Yeo, Eunju Lee, Churl-Hee Cho, Hyun-seol Park, Nam-jo Jeong, Chang-Kook Hong, Dong-kook Kim