Removing A Liquid To Form A Cellular Product Patents (Class 521/64)
  • Patent number: 10654959
    Abstract: The present invention provides a method for preparing a superabsorbent polymer, the method comprising the steps of: forming a function gel polymer by cross-linked polymerization of a monomer mixture under the presence of an internal cross-linking agent, the monomer mixture including a water-soluble ethylene-based unsaturated monomer having an acid group at least part of which is neutralized, a carbonate, a volatile organic solvent, a surfactant, and a bubble promoting agent; forming a base resin powder by drying, grinding, and classifying the function gel polymer; and forming a surface cross-linked layer by additional cross-linking of the surface of the base resin powder under the presence of a surface cross-linking agent. The method for preparing a superabsorbent polymer may provide a superabsorbent polymer which has a porous structure, thereby exhibiting an excellent absorption rate while exhibiting excellent gel strength.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: May 19, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Soo Jin Lee, Hye Mi Nam, Sang Gi Lee, Min Ho Hwang, Tae Hwan Jang
  • Patent number: 10637100
    Abstract: A method of making a passively impact resistant composite electrolyte and separator layer includes providing a suspension composition including electrically non-conducting particles that enable shear thickening. The particles can have a polydispersity index of no greater than 0.1, an average particle size in a range of from 50 nm to 1 um, and an absolute zeta potential of greater than ±40 mV. A particle suspension solvent is provided for suspending the particles. The suspension composition is applied to a porous separator material. A portion of the particles and suspension solvent penetrate the pores and the remainder of the particles in the suspension composition are distributed across the surface of the separator material. The suspension solvent is evaporated from the separator material to provide a shear thickening particle loaded separator. A separator assembly and a passivated battery are also disclosed.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: April 28, 2020
    Assignee: UT-BATTELLE, LLC
    Inventors: Beth L. Armstrong, Gabriel M. Veith, Sergiy Kalnaus, Hsin Wang, Katie L. Browning, Kevin M. Cooley
  • Patent number: 10626214
    Abstract: A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 21, 2020
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Kaoru Aou, Joseph Jacobs, Qinghao Meng, Paul Cookson
  • Patent number: 10376420
    Abstract: A personal hygiene article includes a chassis with a topsheet, a backsheet, and an absorbent component between the topsheet and the backsheet. At least one portion of the personal hygiene article includes a microporous film having an opaque, microporous region and at least one see-through region of lower porosity within the opaque, microporous region. The microporous film can include a beta-nucleating agent or can have thermally induced phase separation caused by a diluent. A container includes a microporous film enclosing at least one personal hygiene article. The microporous film has an opaque, microporous region and at least one see-through region of lower porosity forming a window within the opaque, microporous region. Methods of making the personal hygiene article and container are also described.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 13, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Neelakandan Chandrasekaran, Robert L. W. Smithson, Leigh E. Wood, Timothy V. Stagg
  • Patent number: 10059597
    Abstract: The present invention relates to a method for manufacturing an aerogel sheet. The method for manufacturing an aerogel sheet includes: a step (a) of immersing a blanket in an impregnation vessel in which silica sol is stored to impregnate the silica sol; and a step (b) of injecting a gelling catalyst to a surface of the blanket in which the silica sol is impregnated to gelate the silica sol.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: August 28, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Ye Hon Kim, Je Kyun Lee, Jung Uk Choi
  • Patent number: 9840605
    Abstract: Polymer foam bodies are made from phosphorus-containing thermoplastic random copolymers of a dialkyl (meth)acryloyloxyalkyl phosph(on)ate. Foam bodies made from these copolymers exhibit increased limiting oxygen indices and surprisingly have good properties. In certain embodiments, the phosphorus-containing thermoplastic copolymer is blended with one or more other polymers and formed into nanofoams.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: December 12, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Yudong Qi, Yan Li, Shana P. Bunker, Stephane Costeux, Ted A. Morgan
  • Patent number: 9840443
    Abstract: A general procedure applied to a variety of sol-gel precursors and solvent systems for preparing and controlling homogeneous dispersions of very small particles within each other. Fine homogenous dispersions processed at elevated temperatures and controlled atmospheres make a ceramic powder to be consolidated into a component by standard commercial means: sinter, hot press, hot isostatic pressing (HIP), hot/cold extrusion, spark plasma sinter (SPS), etc.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: December 12, 2017
    Assignee: Lawrence Livermore National Laboratory, LLC
    Inventors: Richard Landingham, Robert A. Reibold, Joe Satcher
  • Patent number: 9777078
    Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution, where the monomer solution comprises at least two initiators, one of the initiators is a peroxide with the exception of persulfate, and the molar ratio of peroxide to further initiator is at least 1:8, the water-absorbing polymer particles themselves, and hygiene articles comprising these water-absorbing polymer particles.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: October 3, 2017
    Assignee: BASF SE
    Inventors: Dennis Loesch, Volker Seidl, Matthias Weismantel
  • Patent number: 9707000
    Abstract: The present invention is directed to the compositions and methods of preparing hydrogel-grafted nerve guides for peripheral nerve regeneration. Particularly, the present invention describes the nerve guides and methods for preparation of hydrogel-grafted nerve guides with encapsulated neurotrophic factors and a nanofiber mesh lining the inner surface of the guide. The present invention also provides methods for peripheral nerve repair using these hydrogel-grafted nerve guides.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: July 18, 2017
    Assignee: The Johns Hopkins University
    Inventors: Ahmet Hoke, Shawn H. Lim, Xingyu Liu, Hai-Quan Mao
  • Patent number: 9434832
    Abstract: An aerogel and process of making the aerogel is provided. The aerogel is a polyimide aerogel having polyamide cross-links formed using a triacid chloride cross-linker.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 6, 2016
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventor: Mary Ann B. Meador
  • Patent number: 9394384
    Abstract: The invention provides fabricated tough hydrogels, hydrogel-containing compositions, and methods of making the same. The invention also provides methods of implanting or administering the tough hydrogels, or the hydrogel-containing compositions to treat a subject in need. Methods of cross-linking pre-solidified or pre-gelled hydrogel particles and making crosslinked tough hydrogels, and crosslinked tough hydrogel-containing compositions also are disclosed herein.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: July 19, 2016
    Assignee: The General Hospital Corporation
    Inventors: Orhun K. Muratoglu, Jeeyoung Choi, Hatice Bodugoz-Senturk, Gavin J. C. Braithwaite, Stephen H. Spiegelberg
  • Patent number: 9345667
    Abstract: A process for preparing particles having a hydrophobic material therein is disclosed. The process comprises providing a multiple emulsion comprising a first emulsion dispersed in a hydrophobic medium, said first emulsion comprising a hydrophobic phase dispersed in a hydrophilic phase, wherein the hydrophobic phase comprises the hydrophobic material and the hydrophilic phase comprises a precursor which is capable of reacting to form a non-fluid matrix and reacting the precursor in the multiple emulsion to form the matrix in the form of the particles having the hydrophobic material therein wherein the precursor is added prior to formation of the multiple emulsion. Also disclosed are particles having a hydrophobic material therein, which may be releasable, as well as particles having a hydrophobic material therein, which may be releasable, made by the process and methods of using the particles.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: May 24, 2016
    Assignee: Australian Nuclear Science and Technology Organisation
    Inventors: Linggen Kong, Christophe Jean Alexandre Barbe, Kim Suzanne Finnie
  • Patent number: 9324571
    Abstract: A method and apparatus for depositing a low K dielectric film with one or more features is disclosed herein. A method of forming a dielectric layer can include positioning a substrate in a processing chamber, delivering a deposition gas to the processing chamber, depositing a dense organosilicon layer using the deposition gas on the surface of the substrate, the dense organosilicon layer comprising a porogenic carbon, transferring a pattern into the dense organosilicon layer, forming a pore-forming plasma from a reactant gas, exposing the dense organosilicon layer to the pore-forming plasma to create a porous organosilicon layer, wherein the pore-forming plasma removes at least a portion of the porogenic carbon and exposing the porous organosilicon layer to a desiccating post treatment.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: April 26, 2016
    Inventors: Kang Sub Yim, Pendar Ardalan, Sure Ngo, Alexandros T. Demos
  • Patent number: 9323102
    Abstract: There are provided a resin composition and an optical film using the same. The resin composition includes a copolymer (A) formed by polymerizing a (meth)acryloyl morpholine-based monomer (a), a maleimide-based monomer (b), and an alkyl(meth)acrylate-based monomer (c), and the optical film is manufactured using the same. The resin composition may provide a film having excellent optical properties and optical transparency, reduced haze, excellent mechanical strength, a relatively low level of thermal expansion coefficient leading to a relatively small change in a dimension, and a relatively low level of alteration in a retardation value due to external stress.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 26, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jun-Geun Um, Nam-Jeong Lee
  • Patent number: 9296851
    Abstract: The invention relates to a process for the preparation of polymers and to an apparatus for performing this process. The apparatus comprises devices and reactors that are combined in the sequence of first a mixing device, second a flow microwave and optionally third one or more additional reactors.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: March 29, 2016
    Assignee: DPx Holdings B.V.
    Inventor: Karsten Luettgen
  • Patent number: 9255198
    Abstract: The invention provides a method of preparing an aqueous dispersion of polymer encapsulated particulate material, the method comprising: providing a dispersion of the particulate material in a continuous aqueous phase, the dispersion comprising RAFT agent as a stabiliser for the particulate material; and polymerising ethylenically unsaturated monomer under the control of the RAFT agent to form polymer at the surface of the dispersed particulate material, thereby providing the aqueous dispersion of polymer encapsulated particulate material; wherein polymerisation of the ethylenically unsaturated monomer comprises: (a) polymerising a monomer composition that includes ionisable ethylenically unsaturated monomer so as to form a base responsive water swellable RAFT polymer layer that encapsulates the particulate material; and (b) polymerising a monomer composition that includes non-ionisable ethylenically unsaturated monomer so as to form an extensible, water and base permeable RAFT polymer layer that encapsulate
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: February 9, 2016
    Assignee: The University of Sydney
    Inventors: Matthew P. Baker, Timothy W. Davey, Brian S. Hawkett, Duc N. Nguyen, Caitlin C. O'Brien, Christopher H. Such
  • Patent number: 9219264
    Abstract: A separator for a rechargeable lithium battery including a tungsten-doped vanadium oxide (VO2) phase transition material and the rechargeable lithium battery including the separator. Here, an explosion possibility of the rechargeable lithium battery including the separator may be prevented and delayed when the battery is excessively heated.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: December 22, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Sang-Il Han, Jung-Yi Yu, Mi-Hyun Lee
  • Patent number: 9200154
    Abstract: The present invention provides porous resin particles made of a polymer of a monomer mixture, wherein the monomer mixture contains, as monomers, at least methyl methacrylate and a (meth)acrylic-based cross-linkable monomer, a content of the methyl methacrylate in the monomer mixture is 1 to 50% by weight, a content of the (meth)acrylic-based cross-linkable monomer in the monomer mixture is 50 to 99% by weight, the porous resin particles have a specific surface area of 130 to 180 m2/g, a pore volume of 0.3 to 0.7 ml/g, and an average pore size of 13 to 16 nm, an amount of unreacted methyl methacrylate remaining in the porous resin particles is 20 ppm or less, and the porous resin particles have a thermal decomposition starting temperature of 260° C. or more.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: December 1, 2015
    Inventors: Kenzo Teramoto, Junko Hiroi, Masaaki Nakamura
  • Patent number: 9179997
    Abstract: A method of creating a thermochromic artificial blood vessel includes physically cross-linking a polyvinyl alcohol solution in a mold shaped to mimic a blood vessel to create an artificial blood vessel. The artificial tissue is then chemically cross-linked with a solution including a chemical cross-linking reagent. A coagulation solution is then applied to the artificial blood vessel to both inhibit the chemical cross-linking and promote physical cross-linking of the artificial blood vessel. The artificial blood vessel can be used to test an ablation catheter. The vessel, when heated by the ablation catheter, changes color and/or transparency at locations where the temperature of artificial blood vessel increases.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: November 10, 2015
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: Eunhee Cho, Valentine Kozov, Sukanya Varadharajan, Steven N. Willard
  • Patent number: 9181634
    Abstract: The invention concerns a particle having a code from a library of codes embedded in its physical structure by refractive index changes between different regions of the particle. In preferred embodiments, a thin film possesses porosity that varies in a manner to produce a code detectable in the reflectivity spectrum. An assay detection method uses such a particle and detects a spectral shift in the presence of an analyte. Additional embodiments are disclosed including additional features.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: November 10, 2015
    Assignee: The Regents of the University of California
    Inventors: Michael J. Sailor, Shawn O. Meade
  • Patent number: 9062242
    Abstract: A method of forming a wellbore fluid, the method including introducing a hydratable polymer and introducing a crosslinker comprised of at least a silica material, the crosslinker having a dimension of from about 5 nm to about 100 nm.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: June 23, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Li Jiang, Michael D. Parris, Richard D. Hutchins, Javier Sanchez Reyes, Christina D. Martin
  • Patent number: 9062245
    Abstract: Disclosed are compositions-of-matter composed of a continuous elastomeric matrix and a liquid; the matrix entrapping the liquid therein in the form of closed-cell droplets dispersed throughout the matrix. The disclosed compositions-of-matter are characterized by a low tensile/compressive modulus and are capable of retaining the liquid for exceedingly long periods of time. Further disclosed are processes for forming the compositions-of-matter and uses thereof.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: June 23, 2015
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Michael S. Silverstein, Inna Gurevitch
  • Patent number: 9052754
    Abstract: The preferred embodiment of the invention describes a pointing device comprising a cabinet divided in two housings screwed together. Below the upper housing, a flexible, hard-use film contains all button symbols printed thereon and aligned with the housing upper side holes and tact switch actuators. A high-relief surface defines the visible surface of depressed buttons surrounded by restraining circular walls which arise from said high-relief surface. All buttons are placed in a bas-relief surface to avoid undesired or unintended pressings. Moreover, the fact that they are in a depressed surface help people with limb movement disorders to avoid the involuntary movement of their fingers beyond the limits of the depressed buttons, which act as restraining areas, thus avoiding to click, press or hold an undesired button.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 9, 2015
    Inventor: Felipe Sergio Schapira
  • Patent number: 9034934
    Abstract: A method for making polyethylene aerogels, including high molecular weight aerogels, commences by in a hydrocarbon solvent (e.g., toluene or benzene) in which polyethylene is insoluble at room temperature, adding polyethylene to the solvent heated to a temperature at which said polyethylene is soluble to form a reaction mixture. A free-radical catalyst is added to the reaction mixture and the reaction mixture is held until the desired gelation of the polyethylene has been achieved. The reaction mixture is cooled to about room temperature; and the hydrocarbon solvent is replaced with a gas (e.g., CO2 or air) to form the polyethylene aerogel. Optionally, the cooled reaction mixture can be contacted with an anti-solvent for polyethylene to replace the hydrocarbon solvent with the anti-solvent. Silica aerogel particles can be encapsulated in polyethylene aerogel by adding the particles to the polyethylene gelation reaction mixture.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: May 19, 2015
    Inventor: Yosry A. Attia
  • Publication number: 20150111976
    Abstract: The present disclosure provides a series of new and improved porous polyamide aerogels derived from multifunctional aromatics that combine the high mechanical strength of aramids with the pore structure of aerogels. The polyamide aerogels have a hyperbranched structure, relatively low density, high porosity and may be derived from functionalized monomers having more aromatic groups than functional groups. The present disclosure also provides a new method for producing the porous polyamide aerogels by polymerizing an aromatic multifunctional carboxylic acid or a ferrocene multifunctional carboxylic acid with a polyfunctional aromatic isocyanate at moderate reaction conditions followed by drying with liquid CO2. Also disclosed are various methods of use of these polyamide aerogels in a variety of applications.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 23, 2015
    Inventors: Nicholas Leventis, Chariklia Sotiriou-Leventis, Malik Adnan Saeed
  • Patent number: 8993646
    Abstract: A porous polymer separator for use in a lithium ion battery is formed by a temperature-induced phase separation method. The porous polymer separator includes a polymer matrix having opposed major faces and a network of pore openings that extends between the major faces and permits intrusion of a lithium-ion conducting electrolyte solution. As part of the temperature-induced phase separation method, a single phase polymer solution that includes a polymer material dissolved in a miscible mixture of a real polymer solvent and a polymer non-solvent is prepared at an elevated temperature above room temperature. A film is then formed from the single phase polymer solution and cooled to phase-separate the polymer material into a solid polymer precipitate. Additional polymer non-solvent is then used to remove the real polymer solvent from the solid polymer precipitate followed by drying.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: March 31, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Xiaosong Huang
  • Publication number: 20150087732
    Abstract: Disclosed is an elastomer synthesized by a reacting epoxidized vegetable oil with carboxylic acid to form the elastomer compound. More specifically, disclosed herein is an elastomer compound having a polyester component. The method for making the elastomer comprises mixing a polybasic acid with an alcohol solvent to form a solution, reacting said solution having carboxylic groups with epoxidized vegetable oil, and heating the solution at a range of approximately 50° C. to 80° C., wherein an amorphous polyester elastomer is formed. Also disclosed is an elastomer foam product formed by a reacting epoxidized vegetable oil with carboxylic acid.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 26, 2015
    Inventor: Zengshe Liu
  • Publication number: 20150065590
    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: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Inventors: Wendell E Rhine, Decio Coutinho, Kiranmayi Deshpande
  • Publication number: 20150057380
    Abstract: A vinyl chloride-based copolymer porous body contains a vinyl chloride-based copolymer as the main component. The vinyl chloride-based copolymer porous body has continuous pores having a pore size of 0.1 to 40 ?m, the pores have a skeletal diameter of 0.1 to 20 ?m, and the vinyl chloride-based copolymer has a thickness of 1 mm or more. Such a vinyl chloride-based copolymer porous body can be produced by a production method including the steps of: heating and dissolving the vinyl chloride-based copolymer in a solvent to obtain a vinyl chloride-based copolymer solution; cooling the vinyl chloride-based copolymer solution to obtain a precipitated product; and separating and drying the product to obtain a porous body containing the vinyl chloride-based copolymer as the main component.
    Type: Application
    Filed: November 7, 2012
    Publication date: February 26, 2015
    Inventors: Hiroshi Uyama, Wataru Mio, Yusuke Hirai, Kazuhiro Fuke
  • Patent number: 8921436
    Abstract: Microporous polyolefin and microporous polydicyclopentadiene (polyDCPD) based aerogels and methods for preparing and using the same are provided. The aerogels are produced by forming a polymer gel structure within a solvent from a olefin or dicyclopentadiene monomer 5 via Ring Opening Metathesis Polymerization (ROMP) reactions, followed by supercritical drying to remove the solvent from the aerogel. Other aerogels are prepared by sequentially (1) mixing at least one dicyclopentadiene monomer, at least one solvent at least one catalyst and at least one inorganic and/or organic reinforcing material, (2) gelling the mixture, (3) aging, and (4) supercritical drying. Aerogels provided herein are inexpensive to prepare, possess desirable 10 thermal, mechanical, acoustic, chemical, and physical properties and are hydrophobic.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: December 30, 2014
    Assignee: Aspen Aerogels, Inc.
    Inventors: Je Kyun Lee, George L Gould
  • Patent number: 8916619
    Abstract: A porosity is freely controlled in preparation of a porous polymer film by a phase separation method. A solvent absorption sheet is used for a solvent in a polymer solution so that the coating film of the polymer solution may be covered with the sheet. After that, the solvent in the film is selectively removed. Then, the resultant is immersed in a poor solvent. Thus, a porous polymer film can be produced.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: December 23, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naotake Sato, Toshihiro Kikuchi, Yuichi Hashimoto, Yohei Miyauchi
  • Patent number: 8906978
    Abstract: The present application is generally directed to activated carbon materials and methods for making the same. The disclosed methods comprise rapidly freezing synthetically prepared polymer gel particles. The methods further comprise drying, pyrolyzing, and activating steps to obtain an activated carbon material of high porosity. The disclosed methods represent viable manufacturing processes for the preparation of activated carbon materials.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: December 9, 2014
    Assignee: EnerG2 Technologies, Inc.
    Inventors: Henry R. Costantino, Aaron Feaver, William D. Scott
  • 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
  • Publication number: 20140357743
    Abstract: A method is presented for forming a collapsed foam film-like structure, the method including positioning a composition applicator adjacent to a hot non-permeable dryer surface, producing a first frothed dispersion or frothed solution from a first dispersion or solution, applying the first frothed dispersion or frothed solution to the dryer surface, allowing the first frothed dispersion or frothed solution to convert to a collapsed foam film-like structure, and scraping the collapsed foam film-like structure from the dryer surface. The method can further include producing a second dispersion or solution, blending the first dispersion or solution and the second dispersion or solution, frothing the blended dispersion or solution, applying the blended frothed dispersion or frothed solution to the dryer surface, and allowing the frothed dispersion or frothed solution to convert to a collapsed foam film-like structure.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Keyur Desai, Jian Qin, Jeffrey Frank Jurena, Frank Paul Abuto, Susan Elaine Shawver, Donald Eugene Waldroup, Deborah Joy Calewarts
  • Publication number: 20140350134
    Abstract: The present disclosure provides a method for producing an aerogel, the method comprising reacting at least one acid monomer with at least one diamino monomer in a first solvent under conditions appropriate to form a polyimide polymer; conducting a solvent exchange wherein the first solvent is exchanged for a second solvent, said second solvent having a freezing point, wherein said solvent exchange further comprises (1) submersing the polyimide polymer in the second solvent in a pressure vessel and (2) creating a high pressure environment inside the pressure vessel for a first period of time; cooling the polyimide polymer to a first temperature below the freezing point of the second solvent; and subjecting cooled polyimide polymer to a first vacuum for a second period of time at a second temperature.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Inventors: David L. Rodman, Garrett D. Poe, Brandon S. Farmer, Joseph C. Smith
  • Patent number: 8889749
    Abstract: Provided is a method for preparing hydrophobic monolithic silica aerogel, comprising dipping monolithic wet silica gel obtained by using an alkoxide precursor into an alkylsilane solution as a dipping solution to perform hydrophobitization of the surface and inner part of the monolithic wet silica gel by a dipping process. The method is economical by virtue of the use of a small amount of alkylsilane compound and imparts hydrophobic property to monolithic silica aerogel simply in a cost efficient and time efficient manner. In addition, the method reduces shrinkage of hydrophobic monolithic silica aerogel, enables production of hydrophobic monolithic silica aerogel in a translucent form, and allows the hydrophobic monolithic silica aerogel to maintain low heat conductivity similar to the heat conductivity of hydrophilic silica aerogel. The hydrophobic monolithic silica aerogel may be used directly as a heat insulating panel by virtue of excellent hydrophobic property and heat insulating property.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: November 18, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Jin Suh, Gi Seok Yang, Jae Wook Choi, Young Hyun Yoon, Yun Su Lee, Jeong Myeong Ha
  • Patent number: 8859701
    Abstract: A process for producing a water-absorbing polymer comprises: (i) mixing (?1) 0.1-99.99% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof, or ethylenically unsaturated monomers including a protonated or quaternized nitrogen, or mixtures thereof, (?2) 0-70% by weight of ethylenically unsaturated monomers copolymerizable with (?1), (?3) 0.001-10% by weight of one or more crosslinkers, (?4) 0-30% by weight of water-soluble polymers, and (?5) 0-20% by weight of one or more assistants, where the sum of the weights (?1) to (?5) is 100%; (ii) free-radical polymerization with crosslinking to form an untreated hydrogel polymer; (iii) coarse comminution of the untreated hydrogel polymer to give pieces having a diameter from 0.1 mm to 5.0 cm; (iv) cooling and grinding the untreated hydrogel polymer; (v) drying the untreated hydrogel polymer after grinding at a temperature from 85° C. to 260° C.; (vi) postcrosslinking the hydrogel polymer and (vii) drying the water-absorbing polymer.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: October 14, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Christoph Loick, Dominik Gartz, Laurent Wattebled, Jorg Harren
  • Patent number: 8840989
    Abstract: Reinforced, laminated, impregnated, and materials with composite properties as cross linked polyvinyl alcohol hydrogel structures in bulk or cellular matrix forms that can take essentially any physical shape, or can have essentially any size, degree of porosity and surface texture. They have a wide range of physical properties, unusual and unique combinations of physical properties and unique responses to stress fields, which allows for their use in many end use applications.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: September 23, 2014
    Inventor: Nedeljko Gvozdic
  • Patent number: 8822558
    Abstract: Low density, buoyant materials, in particular hydrophobic aerogels, may be used to absorb hydrophobic liquids. The materials are adapted to float on aqueous solutions and can absorb oils or other hydrophobic liquids from the surface of the solution without absorbing appreciable amounts of the aqueous solution. Methods for creating and using the materials are disclosed.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: September 2, 2014
    Assignee: Case Western Reserve University
    Inventors: Matthew D. Gawryla, David A. Schiraldi
  • Publication number: 20140243440
    Abstract: A method for producing a porous polymer structure involves (i) forming a polymer; (ii) subsequently contacting the polymer with a nonsolvent and inducing the formation of an emulsion in which the nonsolvent is present as the dispersed phase and the polymer as the continuous phase; and (iii) removing at least some of the nonsolvent so as to leave pores within the polymer, wherein the polymer is formed by exciting one or more molecules in an exciting medium, in particular by pulsed plasma deposition. Emulsion formation in step (ii) may be induced by or in the presence of an emulsion stabilising agent. Also provided is a porous polymer structure produced using the method, and a polymer which is impregnated with an emulsion stabilising agent, for use in the emulsion formation step of the method.
    Type: Application
    Filed: July 18, 2012
    Publication date: August 28, 2014
    Inventors: Jas Pal S. Badyal, Suzanne Morsch
  • Patent number: 8815967
    Abstract: A porous polyurea material may be prepared by polymerization and crosslinking of tetra(4-aminophenyl)methane or tetra(4-aminophenyl)silane with a monomer having two to four isocyanate (—NCO) groups, or by polymerization and crosslinking of tetra(4-isocyanatophenyl)methane or tetra(4-isocyanatophenyl)silane with a monomer having two to four amino groups. The method includes: mixing an organic solution of tetra(4-aminophenyl)methane with an organic solution of a monomer having two to four isocyanate groups; reacting the mixed solution under a nitrogen atmosphere; and drying a semi-solid or solid material formed by gelation of the reaction solution, or adding the reaction solution to a non-solvent before gelation of the reaction solution to form a precipitate, followed by drying, or applying the reaction solution to a substrate before gelation of the reaction solution, followed by drying.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: August 26, 2014
    Assignee: Gwangju Institute of Science an Technology
    Inventors: Ji-Woong Park, Su-Young Moon, Jae-Sung Bae
  • Patent number: 8796343
    Abstract: Use in hygiene articles of articles formed of water-absorbent, predominantly open-celled crosslinked acid-functional addition polymer foams Abstract The use of articles formed of water-absorbent open-celled crosslinked acid-functional addition polymer foams and containing finely divided silicon dioxide and/or at least one surfactant on their surface as an acquisition and/or distribution layer in hygiene articles.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: August 5, 2014
    Assignee: BASF SE
    Inventors: Samantha Champ, Hans-Joachim Hähnle, Mariola Wanior
  • Patent number: 8779016
    Abstract: A spray latex foam for filling wall cavities to enhance the sealing and insulating properties of a building is provided. The spray latex foam includes a latex system and a gaseous coagulating component. In at least one exemplary embodiment, carbon dioxide is included as a gaseous coagulating agent. One latex suitable for use in the spray foam is polyvinylidene chloride (PVDC), which possesses fire retardancy and environmental durability. However, a preferred latex is styrene-butadiene rubber (SBR). The latex system may also include a thixotropic agent, such as Laponite® RD synthetic clay. The spray latex foam is polyurethane-free. A method of preparing a spray latex foam that includes supplying a latex system and adding a gaseous coagulating component to the latex system is also provided.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 15, 2014
    Assignee: Owens Corning Intellectual Capital, LLC
    Inventors: Robert J. O'Leary, Michelle L. Korwin-Edson
  • Patent number: 8741974
    Abstract: A method for forming a filter in a fluid flow path in a microfluidic device is provided. The method includes introducing a photopolymerization reaction solution into the microfluidic device; and performing polymerization of photopolymerization reaction solution to form a filter in the fluid flow path in a microfluidic device.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: June 3, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-eun Yoo, Jong-myeon Park
  • Patent number: 8728617
    Abstract: Provided is a microporous material, e.g., a microporous sheet material, having a matrix of polyolefin, finely-divided, substantially water insoluble particulate filler, a network of interconnecting pores communicating throughout the microporous material, and at least one retrospectively identifiable taggant material embedded within the matrix, optionally the at least one taggant being unique to an end user for the microporous material, wherein the polyolefin is present in the microporous material in an amount of 20 to 35 weight percent, based on the weight of the microporous material. The taggant material provides a marker, signature or code that is capable of retrospective identification by machine, instrument or by the naked eye. Articles including the microporous material and processes for preparing the microporous material also are provided.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: May 20, 2014
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Paul L. Benenati, James L. Boyer, Charles R. Coleman, Luciano M. Parrinello, Narayan K. Raman
  • Publication number: 20140134415
    Abstract: Highly porous, lightweight, and sustainable hybrid organic aerogels with ultra-low densities and excellent material properties and methods for preparing them are provided, including, e.g., PVA/CNF/GONS, RF/CNF/GONS, and PVA/CNF/MWCNT. The aerogels are modified to have a super-hydrophobic surface, thus leading to an extremely low swelling ratio and rate of moisture absorption.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 15, 2014
    Applicants: The United States of America as Represented by the Secretary of Agriculture, Wisconsin Alumni Research Foundation
    Inventors: Shaoqin GONG, Alireza JAVADI, Qifeng ZHENG, Zhiyong CAI, Ronald SABO
  • Patent number: 8722749
    Abstract: A method for producing foams, such as sponges, from hydrocolloids is described. A solid or semi-solid gel is formed by dissolving polymeric material in an aqueous solvent. The gel formed is allowed to set, and may optionally then be cut into the desired shape. The gel may be frozen to allow formation of ice crystals to act as porogens. Subsequently, the gel is exposed to a radiant energy field for drying under vacuum. This causes the solvent to boil and the foam or sponge is formed. Medicinally active ingredients may be included in the process, so that the sponge or foam formed contains the active ingredient dispersed within the structure. The method described provides an alternative to the conventional methods of particulate leaching or freeze drying.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: May 13, 2014
    Assignee: Enwave Corporation
    Inventors: Timothy D. Durance, Jaya Sundaram, Mareike Ressing
  • Patent number: 8703834
    Abstract: Crosslinked organic polymeric porous particles have a crosslinked organic solid phase and discrete pores dispersed within the crosslinked solid phase which pores are isolated from each other. These porous particles are prepared using one or more water-in-oil emulsions containing a polyfunctional reactive compound, a reagent that causes crosslinking, optionally an ethylenically unsaturated polymerizable monomer, and optionally an organic solvent, and can include various marker materials.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: April 22, 2014
    Assignee: Eastman Kodak Company
    Inventor: Mridula Nair
  • Patent number: 8703284
    Abstract: An amalgam comprising a highly porous, carbon-enveloped structure, such as aerogel. The carbon dispersion within the aerogel substrate consists of sonicated (using ultrasonic cleanser) carbon nanotubes, which can be inserted into the aerogel/xerogel through various techniques. Procedures include mixture of nanotubes to any aerogel/xerogel preparation solution prior and/or during solgel/alcogel stage; addition of nanotubes to aerogel during any solvent exchange with liquids (ethanol, etc.) or gas (carbon dioxide, etc.) as a solgel/alcogel; permeation of vapor containing nanotubes (by way of carbon burning using the Kratschmer-Huffman, or any other related, similar machine) in aerogel/solgel/alcogel/xerogel pore structure and/or preparation solutions; intravenous introduction of nanotubes, manually or by way of any conveyance device (i.e. syringe) to finished aerogels/xerogels or solgels/alcogels.
    Type: Grant
    Filed: April 28, 2001
    Date of Patent: April 22, 2014
    Inventor: Joel Ricardo Lee Meeks-Matous
  • Patent number: 8691883
    Abstract: An aerogel-foam composite includes an open cell foam and an aerogel matrix polymer disposed in the open cell foam. The aerogel-foam composite has compression strength of about 15 megaPascals (MPa) or more. The open cell foam may be a polyurethane foam including a carbonate group (—OC(O)O—).
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: April 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-Dong Cho, Sang-Ho Park, Kwang-Hee Kim, Sung-Woo Hwang