Preparing A Cellular Product By Decomposition Of A Solid Polymer; Or Process Of Forming A Composition Containing A Solid Polymer Which Decomposes So As To Subsequently Form A Cellular Polymer, Or Composition Therefrom Patents (Class 521/77)
  • Patent number: 9228120
    Abstract: Disclosed is a liquid chemical for forming a water-repellent protecting film at least on a surface of a recessed portion of an uneven pattern at the time of cleaning a wafer having a finely uneven pattern at its surface and containing silicon at least a part of the uneven pattern. This liquid chemical contains a silicon compound A represented by the general formula: R1aSi(H)bX4-a-b and an acid A, the acid A being at least one selected from the group consisting of trimethylsilyl trifluoroactate, trimethylsilyl trifluoromethanesulfonate, dimethylsilyl trifluoroactate, dimethylsilyl trifluoromethanesulfonate, butyldimethylsilyl trifluoroactate, butyldimethylsilyl trifluoromethanesulfonate, hexyldimethylsilyl trifluoroacetate, hexyldimethylsilyl trifluoromethanesulfonate, octyldimethylsilyl trifluoroactate, octyldimethylsilyl trifluoromethanesulfonate, decyldimethylsilyl trifluoroacetate and decyldimethylsilyl trifluoromethanesulfonate.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: January 5, 2016
    Assignee: Central Glass Company, Limited
    Inventors: Soichi Kumon, Takashi Saio, Shinobu Arata, Masanori Saito, Atsushi Ryokawa, Shuhei Yamada, Hidehisa Nanai, Yoshinori Akamatsu
  • Patent number: 9216389
    Abstract: The present disclosure provides a porous polymer membrane having a covalent network structure and a method for producing the same. The method includes: polymerizing a first monomer having four first functional groups oriented in a tetrahedral arrangement with a second monomer having at least two second functional groups to prepare porous organic framework nanoparticles; mixing the solution of the porous organic framework nanoparticles with a polymer; and applying the mixed solution to a substrate, followed by heating to form a polymer matrix containing the nanoparticles. According to the method, a polymer membrane with excellent chemical stability, heat resistance, durability and permeability can be produced through simple processes. Advantageously, the porous structure of the polymer membrane can be easily modified depending on intended applications of the polymer membrane.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: December 22, 2015
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ji Woong Park, Jae Sung Bae, Su Young Moon
  • Patent number: 8980799
    Abstract: A method of deploying a borehole filtration device is provided utilizing the steps of: deploying a filtration device comprising a polymer foam having a first cell structure, a portion of the molecular structure of which polymer foam is degradable by exposure to a post-treatment fluid, into a borehole; and exposing the polymer foam to the post-treatment fluid, thereby modifying the cell structure of the polymer foam to a second cell structure.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: March 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Ping Duan
  • Patent number: 8926733
    Abstract: A method for preparing a polymeric material includes: providing a polymeric matrix having at least one polymer and at least one porogen; and degrading the at least one porogen at a temperature T?1.1 Tg, where Tg is a glass transition temperature of the polymeric matrix. The degrading step includes exposing the polymeric matrix to thermal degradation, chemical degradation, electrical degradation and/or radiation degradation, wherein the polymeric material has a permeability at least 1.2 times a permeability of the polymeric matrix for a gas, and a selectivity of the polymeric material is at least 0.35 times a selectivity of the polymeric matrix for a gas pair. The method preferably provides gas separation membranes that exceed Robeson's upper bound relationship for at least one gas separation pair. Novel polymeric materials, gas separation membranes and fluid component separation methods are also described.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: January 6, 2015
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Shiying Zheng, Lloyd M. Robeson, M. Keith Murphy, Jeffrey R. Quay
  • Publication number: 20140343178
    Abstract: The purpose of the present invention is to provide a method for manufacturing a porous hollow fiber membrane in which the amount of a hypochlorite used during pore forming agent removal treatment can be reduced and the facilities cost can be minimized, and in which the post-treatment waste liquid can be readily treated. This method for manufacturing a porous hollow fiber membrane has: coagulating a membrane forming material liquid containing a membrane forming resin and a pore forming agent by a coagulating liquid, to thereby form a porous hollow fiber membrane precursor; and removing the porous hollow fiber membrane precursor impregnated at least with a liquid into contact with ozone gas in a vapor phase, to thereby decompose and remove the pore forming agent present in the membrane.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 20, 2014
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Yugo Mizokoshi, Masaki Kurashina, Toshinori Sumi
  • Patent number: 8568880
    Abstract: Provided is a process for advantageously producing spherical particles of furfuryl alcohol resin without irradiating the reaction system with ultrasonic waves and without using a harmful aldehyde as a starting material. In the process, furfuryl alcohol is subjected to resinification and curing to form spherical fine particles of furfuryl alcohol resin. More specifically, the furfuryl alcohol is subjected to a self-condensation with an acid catalyst having a pKa of less than 1.5 in the presence of a protective colloid and then heated for curing to form spherical particles of furfuryl alcohol resin.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: October 29, 2013
    Assignee: Asahi Organic Chemicals Industry Co., Ltd.
    Inventor: Yasuhiro Matsumoto
  • Publication number: 20130189609
    Abstract: A material (M) includes a substrate one of the surfaces of which is covered with a layer based on a block copolymer having a block (B) consisting of a polysaccharide and to its uses for electronics, in order to prepare organic electroluminescent diodes (OLEDs) or organic photovoltaic cells (OPV) or for designing detection devices (nanobiosensors, biochips).
    Type: Application
    Filed: July 29, 2011
    Publication date: July 25, 2013
    Inventors: Karim Aissou, Sami Halila, Sébastien Fort, Redouane Borsali, Thierry Baron
  • Patent number: 8455561
    Abstract: The object of the invention is a method for the production of foams on silicon basis from polymer mixtures (A) containing silicon, wherein at least one compound (V) is used that contributes to the formation of the polymer network, and which carries at least one alkoxy silyl group of the general formula [1a], [1b], or [1c] ?Si—O—(R1)(R2)(R3) [1a], ?Si(R5)—O—C(R1)(R2)(R3) [1b], ?Si—O—C(O)—U [1c], from which upon curing of the polymer mixtures (A) at least one molecule (XY) is split which is gaseous during processing and causes the formation of foam in the polymer mixture (A), and a catalyst (K) selected from a Brönstedt acid, Brönstedt base, Lewis acid, and Lewis base, where R1, R2, R3, R5, and U have the meanings as stated in claim 1, and where polymer mixtures (A) which form SiO2 during the cross-linking process are excluded.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: June 4, 2013
    Assignee: Wacker Chemie AG
    Inventors: Christian Peschko, Johann Mueller
  • Patent number: 8440733
    Abstract: Semiconductor component and method for production of a semiconductor component. The invention relates to a semiconductor component having a semiconductor chip, which is arranged on a substrate, in one embodiment on a chip carrier, and an encapsulation material, which at least partially surrounds the semiconductor chip. The chip carrier is at least partly provided with a layer of polymer foam.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: May 14, 2013
    Assignee: Infineon Technologies AG
    Inventors: Joachim Mahler, Alfred Haimerl, Michael Bauer, Angela Kessler, Wolfgang Schober
  • Patent number: 8436062
    Abstract: Substantially or roughly spherical micellar structures useful in the formation of nanoporous materials by templating are disclosed. A roughly spherical micellar structure is formed by organization of one or more spatially unsymmetric organic amphiphilic molecules. Each of those molecules comprises a branched moiety and a second moiety. The branched moiety can form part of either the core or the surface of the spherical micellar structure, depending on the polarity of the environment. The roughly spherical micellar structures form in a thermosetting polymer matrix. They are employed in a templating process whereby the amphiphilic molecules are dispersed in the polymer matrix, the matrix is cured, and the porogens are then removed, leaving nanoscale pores.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: May 7, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Patent number: 8410185
    Abstract: A porous polymer, poly-9,9?-spirobifluorene and its derivatives for storage of H2 are prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO2/steam oxidation and supercritical water treatment.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 2, 2013
    Assignee: Uchicago Argonne, LLC
    Inventors: Luping Yu, Di-Jia Liu, Shengwen Yuan, Junbing Yang
  • Patent number: 8394867
    Abstract: Improved polypropylene resin foamed beads that without detriment to the excellence in properties, such as compression properties and heat resistance, characterizing the polypropylene resin foamed beads, can provide a polypropylene resin foamed bead molded article with equal properties by an molding conducted at low heating temperature. There are disclosed polypropylene resin foamed beads composed of a polypropylene resin of 115 to 135° C. melting point and 500 MPa or higher Olsen flexural modulus. The amount of ash at the surface of the foamed beads is 3000 wt. ppm or less (including 0). With respect to the foamed beads, in the first DSC curve obtained by heating 1 to 3 mg of polypropylene resin foamed beads from room temperature to 200° C. at a temperature elevation rate of 10° C.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: March 12, 2013
    Assignee: JSP Corporation
    Inventors: Hidehiro Sasaki, Yasunori Nakamura
  • Patent number: 8389589
    Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: March 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Publication number: 20130047844
    Abstract: A method for preparing a polymeric material includes: providing a polymeric matrix having at least one polymer and at least one porogen; and degrading the at least one porogen at a temperature T?1.1 Tg, where Tg is a glass transition temperature of the polymeric matrix. The degrading step includes exposing the polymeric matrix to thermal degradation, chemical degradation, electrical degradation and/or radiation degradation, wherein the polymeric material has a permeability at least 1.2 times a permeability of the polymeric matrix for a gas, and a selectivity of the polymeric material is at least 0.35 times a selectivity of the polymeric matrix for a gas pair. The method preferably provides gas separation membranes that exceed Robeson's upper bound relationship for at least one gas separation pair. Novel polymeric materials, gas separation membranes and fluid component separation methods are also described.
    Type: Application
    Filed: May 13, 2010
    Publication date: February 28, 2013
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Shiying Zheng, Lloyd M. Robeson, M. Keith Murphy, Jeffrey R. Quay
  • Patent number: 8383693
    Abstract: An aerogel including a polymeric reaction product of (a) a first monomer including an aromatic compound having at least two unsaturated functional groups, and (b) a second monomer represented by the following Chemical Formula 1 and including at least two groups independently chosen from (meth)acrylate groups and NR?R? (where R? and R? are the same or different and are (meth)acryloyl groups) is provided. Each substituent is as defined in the specification.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Hee Kim, Myung-Dong Cho, Sang-Ho Park, Sung-Woo Hwang
  • Patent number: 8362097
    Abstract: The present invention relates to a new molding powder comprising polyethylene polymer particles. The molecular weight of the polyethylene polymer is within the range of from about 600,000 g/mol to about 2,700,000 g/mol as determined by ASTM 4020. The average particle size of the particles of the polyethylene polymer is within the range of from about 5 microns to about 1000 microns and the polyethylene has a powder bulk density in the range of from about 0.10 to about 0.30 g/cc. Also disclosed is a process for molding a shape from a molding powder comprising the inventive polyethylene polymer particles, as well as porous articles made in accordance with the process. The articles have excellent porosity and good strength for porous and porous filtration applications.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: January 29, 2013
    Assignee: Ticona LLC
    Inventors: Louis Chun Wang, Jens Ehlers
  • Patent number: 8277719
    Abstract: A process for the preparation of thermoplastic auxetic foams comprising the steps of: a) taking conventional thermoplastic foam; b) subjecting said foam to at least one process cycle wherein the foam is biaxially compressed and heated; c) optionally subjecting the foam to at least one process cycle wherein the biaxial compression is removed and the foam mechanically agitated prior to reapplying biaxial compression and heating; d) cooling said foam to a temperature below the softening temperature of said foam; and e) removing said compression and heat.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: October 2, 2012
    Assignee: Auxetic Technologies Ltd.
    Inventors: Andrew Alderson, Kim Lesley Alderson, Philip John Davies, Gillian Mary Smart
  • Patent number: 8268903
    Abstract: Substantially or roughly spherical micellar structures useful in the formation of nanoporous materials by templating are disclosed. A roughly spherical micellar structure is formed by organization of one or more spatially unsymmetric organic amphiphilic molecules. Each of those molecules comprises a branched moiety and a second moiety. The branched moiety can form part of either the core or the surface of the spherical micellar structure, depending on the polarity of the environment. The roughly spherical micellar structures form in a thermosetting polymer matrix. They are employed in a templating process whereby the amphiphilic molecules are dispersed in the polymer matrix, the matrix is cured, and the porogens are then removed, leaving nanoscale pores.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: September 18, 2012
    Assignee: International Business Machines Corporation
    Inventors: Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Patent number: 8247464
    Abstract: A selective high intensity ultrasonic foaming technique is described to fabricate porous polymers for biomedical applications. Process variables, including ultrasound power, scanning speed, and gas concentration have an affect on pore size. Pore size can be controlled with the scanning speed of the ultrasound insonation and interconnected porous structures could be obtained using a partially saturated polymers. A gas concentration range of 3-5% by weight creates interconnected open-celled porous structures. The selective high intensity ultrasonic foaming method can be used on biocompatible polymers so as not to introduce any organic solvents. The method has use in cell related biomedical applications such as studying cell growth behaviors by providing a porous environment with varying topological features.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: August 21, 2012
    Assignee: University of Washington
    Inventors: Wei Li, Hai Wang, Vipin Kumar, Thomas J. Matula
  • Patent number: 8163810
    Abstract: Disclosed is a method for substantially diminishing or essentially eliminating a visible knitline in an article derived from a resinous composition comprising at least one thermoplastic resin and at least one special visual effect additive, which comprises the steps of (i) including in the composition an effective amount of at least one chemical foaming agent, and (ii) forming the article in a process that produces a knitline, wherein the article exhibits a substantially diminished or essentially no visible knitline compared to a similar article prepared without chemical foaming agent. Also disclosed are resinous compositions related thereto. Articles made from the compositions are also disclosed.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: April 24, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Douglas Howie, Jr., Satish Kumar Gaggar
  • Publication number: 20120067587
    Abstract: A method of deploying a borehole filtration device is provided utilizing the steps of: deploying a filtration device comprising a polymer foam having a first cell structure, a portion of the molecular structure of which polymer foam is degradable by exposure to a post-treatment fluid, into a borehole; and exposing the polymer foam to the post-treatment fluid, thereby modifying the cell structure of the polymer foam to a second cell structure.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 22, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gaurav Agrawal, Ping Duan
  • Patent number: 8129496
    Abstract: An approach is presented for designing a polymeric layer for nanometer scale thermo-mechanical storage devices. Cross-linked polyimide oligomers are used as the recording layers in atomic force data storage device, giving significantly improved performance when compared to previously reported cross-linked and linear polymers. The cross-linking of the polyimide oligomers may be tuned to match thermal and force parameters required in read-write-erase cycles. Additionally, the cross-linked polyimide oligomers are suitable for use in nano-scale imaging.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: March 6, 2012
    Assignee: International Business Machines Corporation
    Inventors: Urs T. Duerig, Jane Elizabeth Frommer, Bernd Walter Gotsmann, Erik Christopher Hagberg, James Lupton Hedrick, Armin W. Knoll, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Russell Clayton Pratt, Charles Gordon Wade, Johannes Windeln
  • Patent number: 8076382
    Abstract: Porous polymers, tribenzohexazatriphenylene, poly-9,9?-spirobifluorene, poly-tetraphenyl methane and their derivatives for storage of H2 prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO2/steam oxidation and supercritical water treatment.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: December 13, 2011
    Assignee: UChicago Argonne, LLC
    Inventors: Luping Yu, Di-Jia Liu, Shengwen Yuan, Junbing Yang
  • Publication number: 20110287247
    Abstract: An organic polymer-silicon compound composite particle comprising (a) a core composed of an organic polymer particle containing polyvinyl acetate as a principal component and (b) a shell containing a silicon compound, an average particle size of the organic polymer-silicon compound composite particle being 5 to 150 nm.
    Type: Application
    Filed: December 22, 2009
    Publication date: November 24, 2011
    Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHA
    Inventors: Takashi Kawasaki, Motoharu Fukazawa, Shingo Hanazato, Kouji Miyata, Isao Sugimoto
  • Patent number: 7981942
    Abstract: The present invention relates to a new molding powder comprising polyethylene polymer particles. The molecular weight of the polyethylene polymer is within the range of from about 600,000 g/mol to about 2,700,000 g/mol as determined by ASTM 4020. The average particle size of the particles of the polyethylene polymer is within the range of from about 5 microns to about 1000 microns and the polyethylene has a powder bulk density in the range of from about 0.10 to about 0.30 g/cc. Also disclosed is a process for molding a shape from a molding powder comprising the inventive polyethylene polymer particles, as well as porous articles made in accordance with the process. The articles have excellent porosity and good strength for porous and porous filtration applications.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: July 19, 2011
    Assignee: Ticona LLC
    Inventors: Louis Chun Wang, Jens Ehlers
  • Patent number: 7960442
    Abstract: Substantially or roughly spherical micellar structures useful in the formation of nanoporous materials by templating are disclosed. A roughly spherical micellar structure is formed by organization of one or more spatially unsymmetric organic amphiphilic molecules. Each of those molecules comprises a branched moiety and a second moiety. The branched moiety can form part of either the core or the surface of the spherical micellar structure, depending on the polarity of the environment. The roughly spherical micellar structures form in a thermosetting polymer matrix. They are employed in a templating process whereby the amphiphilic molecules are dispersed in the polymer matrix, the matrix is cured, and the porogens are then removed, leaving nanoscale pores.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 14, 2011
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Publication number: 20110120307
    Abstract: Composite porous hydrophobic membranes are prepared by forming a perfluorohydrocarbon layer on the surface of a preformed porous polymeric substrate. The substrate can be formed from poly(aryl ether ketone) and a perfluorohydrocarbon layer can be chemically grafted to the surface of the substrate. The membranes can be utilized for a broad range of fluid separations, such as microfiltration, nanofiltration, ultrafiltration as membrane contactors for membrane distillation and for degassing and dewatering of fluids. The membranes can further contain a dense ultra-thin perfluorohydrocarbon layer superimposed on the porous poly(aryl ether ketone) substrate and can be utilized as membrane contactors or as gas separation. membranes for natural gas treatment and gas dehydration.
    Type: Application
    Filed: December 28, 2010
    Publication date: May 26, 2011
    Applicant: POROGEN CORPORATION
    Inventors: Yong Ding, Benjamin Bikson
  • Publication number: 20110076416
    Abstract: The present invention concerns a method of making a porous material comprising the following steps in the order a-b-c-d: (a) reacting at least one organosilane (A) with water in the presence of a solvent (C) to form a polymeric material, (b) subjecting said polymeric material to a first heat treatment, (c) bringing said polymeric material into contact with at least one dehydroxylation agent (D), (d) subjecting said polymeric material to electromagnetic radiation and/or to a further heat treatment. The present invention furthermore concerns the porous material obtainable by the inventive method, semiconductor devices and electronic components comprising said porous material, and the use of said material for electrical insulation and in microelectronic devices, membranes, displays and sensors.
    Type: Application
    Filed: May 20, 2009
    Publication date: March 31, 2011
    Applicant: BASF SE
    Inventors: Andreas Klipp, Norbert Wagner, Cyrill Zagar, Andreas Fechtenkötter, Chih-Cheng Peng, Chien Hsueh Steve Shih, Sujandi Sujandi
  • Publication number: 20100311852
    Abstract: Disclosed is a preparing method for melamine-formaldehyde spheres (MFSs). The preparing method for MFS according to the present invention comprises mixing melamine in an aqueous formaldehyde solution and heating the solution to prepare a melamine-formaldehyde resin; admixing the melamine-formaldehyde resin with a surfactant, agitating the mixture, and centrifuging the mixture to prepare a solid powder; and washing the solid powder with an aqueous ethanol solution and drying the wetted solid powder to obtain the melamine-formaldehyde sphere. Regulating agitation speed of a mixture may control a size of the melamine-formaldehyde sphere. The preparing method for MFS according to the present invention may further comprise carbonizing the melamine-formaldehyde sphere after obtaining the melamine-formaldehyde sphere. Controlling a temperature for carbonization may control an amount of pores contained in the melamine-formaldehyde sphere.
    Type: Application
    Filed: November 27, 2009
    Publication date: December 9, 2010
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: JEUNG-KU KANG, SE-YUN KIM, JUNG-HOON CHOI, JUN-HO KWON
  • Patent number: 7799839
    Abstract: Disclosed are porous material having hierarchical pore structure and preparation method thereof. A method of synthesizing a nanoporous material having high functionality as a support for bioactive material is combined with a three-dimensional rapid prototyping technique. Thereby, the porous material of the invention has interconnected pores of respective size regions and uneven surface corresponding to each size region, and thus conditions favorable for adhesion, division, proliferation, movement, and differentiation of cells are provided, thereby exhibiting efficient applications in various fields, in addition to bone fillers, restorative materials, and scaffolds.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: September 21, 2010
    Assignee: Korea Institute of Machinery & Materials
    Inventors: Hui-suk Yun, Seung-Eon Kim
  • Patent number: 7705063
    Abstract: A polyurethane foam and a resin composition that may be used to form the polyurethane foam is provided. The resin composition comprises a first ethylene diamine-based polyol having about 100% ethylene oxide capping present in an amount of from 0.5 to 8 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent. The polyurethane foam comprises the reaction product of an isocyanate component and the resin composition. A method of forming the polyurethane foam on a substrate, comprising the steps of combining the isocyanate component, the first ethylene diamine-based polyol having about 100% ethylene oxide capping, the second polyol, and the physical blowing agent to form a polyurethane composition is also provided. The polyurethane composition is applied onto the substrate at an ambient temperature of 0° C. or lower to form the polyurethane foam.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: April 27, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Chris Janzen, Greg Gardin, Chris Lacarte, Katrina Schmidt
  • Patent number: 7674838
    Abstract: A two-part curable foaming composition comprising: (A) A first part comprising: (i) an alkoxysilyl capped prepolymer; and (ii) a polyhydrogen siloxane; (iii) optionally a catalyst which accelerates both foaming and cross-linking through said alkoxysilyl groups; and (B) A second part comprising: (i) a nitrogen-containing compound having an active hydrogen; (ii) water; and (iii) optionally a catalyst which accelerates both foaming and cross-linking through said alkoxysilyl groups; provided that at least one of the parts contain a catalyst and wherein after mixing together the first and second parts a cured elastomeric foam is formed.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: March 9, 2010
    Assignee: Henkel Corporation
    Inventors: Thomas Fay-Oy Lim, James E. Lionberger, Steven T. Nakos
  • Patent number: 7582721
    Abstract: In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in more than one step.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: September 1, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Kiu-Seung Lee, Harry Lee Smith, Jr.
  • Publication number: 20090130380
    Abstract: A pattern forming material contains a block copolymer or graft copolymer and forms a structure having micro polymer phases, in which, with respect to at least two polymer chains among polymer chains constituting the block copolymer or graft copolymer, the ratio between N/(Nc?No) values of monomer units constituting respective polymer chains is 1.4 or more, where N represents total number of atoms in the monomer unit, Nc represents the number of carbon atoms in the monomer unit, No represents the number of oxygen atoms in the monomer unit.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 21, 2009
    Inventors: Koji Asakawa, Toshiro Hiraoka, Yoshihiro Akasaka, Yasuyuki Hotta
  • Patent number: 7485362
    Abstract: A process of making a nanoporous substrate, such as the matrix in an electrical laminate, by grafting onto an organic resin backbone a thermolabile functionality by reacting hydrogen active groups of the organic resin with a compound containing thermolabile groups; then thermally degrading the thermolabile groups grafted on the organic resin to form a nanoporous laminate. Advantageously, the nanoporous electrical laminate has a low dielectric constant (Dk) because of the nanopores present in the laminate matrix.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: February 3, 2009
    Assignee: Dow Global Technologies Inc.
    Inventors: Ludovic L. Valette, Catherine Marestin, Regis Mercier
  • Patent number: 7482389
    Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: January 27, 2009
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Patent number: 7482390
    Abstract: A method of producing an open, porous structure having an outer surface defining a shape having a bulk volume and having interconnecting openings extending throughout said volume and opening through said surface, and products resulting from the method. The method comprises preparing a viscous mixture comprising a sinterable powder dispersed in a sol of a polymer in a primary solvent, replacing the primary solvent with a secondary liquid in which the polymer is insoluble to produce a gel comprising an open polymeric network having the sinterable powder arranged therein, removing the secondary liquid from the gel; removing the polymer network, and sintering the sinterable powder to form the open, porous structure. Also disclosed are shaped, porous products resulting from methods of the invention.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: January 27, 2009
    Assignee: Phillips Plastics Corporation
    Inventors: James R. Johnson, Michael Edward Frencl
  • Publication number: 20080300675
    Abstract: A biocompatible non-memory expandable polymeric article selected from stents, implantable prostheses, catheters, other surgical articles and sealants for implantable prostheses, and which is at least in part biodegradable and includes a combination where hollow cylindrical element (2) is depicted in cutaway form to reveal helical element (4), terminated schematically at (6) and where a combination of at least one thermoplastic elastomeric component and at least one thermoplastic non-elastomeric component, the article being either porous articles or having the potential to become porous by action of body fluids in situ), the thermoplastic non-elastomeric component being present in such an amount as will provide mechanical strength and rigidity to the article when in an expanded mode.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 4, 2008
    Inventor: Adel PENHASI
  • Publication number: 20080234401
    Abstract: A method to create interconnected porosity in materials that can be poured or injected into a cast. The process allows the arrangement of interconnected volumetric porosity to be directed in materials that are poured or injected into a cast. This process allows a manufacturer to tailor porosity with any size, shape, and configuration with the dissolvable material used to create the pores. This procedure can be applied to medical materials to direct bone growth or implant attachment. These resulting porous materials can include, but is not limited to short fiber reinforced epoxy or epoxy.
    Type: Application
    Filed: April 21, 2008
    Publication date: September 25, 2008
    Applicant: University of South Florida
    Inventors: Christopher G. PAPANGELOU, Wesley M. JOHNSON
  • Patent number: 7368483
    Abstract: A low-k organic dielectric material having stable nano-sized porous is provided as well as a method of fabricating the same. The porous low-k organic dielectric material is made from a composition of matter having a vitrification temperature (Tv-comp) which includes a b-staged thermosetting resin having a vitrification temperate (Tv-resin), a pore generating material, and a reactive additive. The reactive additive lowers Tv-comp below Tv-resin.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: May 6, 2008
    Assignees: International Business Machines Corporation, Dow Global Technologies, Inc.
    Inventors: Eric Connor, James P. Godschalx, Craig J. Hawker, James L. Hedrick, Victor Yee-Way Lee, Teddie P. Magbitang, Robert D. Miller, Q. Jason Niu, Willi Volksen
  • Patent number: 7141188
    Abstract: The present invention provides a composition comprising: (a) dielectric material; and (b) porogen comprising at least two fused aromatic rings wherein each of the fused aromatic rings has at least one alkyl substituent thereon and a bond exists between at least two of the alkyl substituents on adjacent aromatic rings. Preferably, the dielectric material is a composition comprising (a) thermosetting component comprising (1) optionally monomer of Formula I as set forth below and (2) at least one oligomer or polymer of Formula II as set forth below where Q, G, h, I, I, and w are as set forth below and (b) porogen.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: November 28, 2006
    Assignee: Honeywell International Inc.
    Inventors: Bo Li, Nancy Iwamoto, Boris Korolev, Paul G. Apen, Kreisler Lau, John G. Sikonia, Ananth Naman, Amauel Gebrebrhan, Nassrin Sleiman, Ruslan Zherebin
  • Patent number: 7115673
    Abstract: The present photosensitive resin composition 2 comprises a polyamic acid resin 4, a photosensitive agent, a dispersible compound 3 dispersible in the polyamic acid resin 4, and a solvent. The porous resin is obtained by removing the solvent from the photosensitive resin composition 2 to form a composition in which the dispersible compound 3 is dispersed in the polyamic acid resin 4, removing the dispersible compound to make the composition porous, and curing the porous photosensitive resin composition. The porous resin enables forming a fine circuit pattern and has a low dielectric constant and, when used as an insulating layer of a circuit board, brings about improved high frequency characteristics.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: October 3, 2006
    Assignee: Nitto Denko Corporation
    Inventors: Amane Mochizuki, Takahiro Fukuoka, Mitsuhiro Kanada, Takayuki Yamamoto, Tomohiro Taruno
  • Patent number: 7112615
    Abstract: Methods and systems are disclosed for fabricating ultra-low dielectric constant porous materials. In one aspect of the invention, a method for making porous low-k films is disclosed. The method uses polymer based porogens as sacrificial templates around which a chemical vapor deposition (CVD) or plasma enhanced chemical vapor deposition (PECVD) deposited matrix is formed. Upon pyrolysis, the porogens decompose resulting in a porous ultra-low dielectric material. This method can be used, for example, to produce porous organosilicate glass (OSG) materials, ultra-low dielectric nanoporous materials, porous ceramics, porous scaffolds, and/or porous metals. Various uses and embodiments of the methods and systems of this invention are disclosed.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: September 26, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Karen K. Gleason, Qingguo Wu, April Ross
  • Patent number: 7109249
    Abstract: A suitable cross-linkable matrix precursor and a poragen can be treated to form a porous cross-linked matrix having a Tg of greater than 300° C. The porous matrix material has a lower dielectric constant than the corresponding non-porous matrix material, making the porous matrix material particularly attractive for a variety of electronic applications including integrated circuits, multichip modules, and flat panel display devices.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: September 19, 2006
    Assignee: Dow Global Technologies Inc.
    Inventors: Kenneth J. Bruza, James P. Godschalx, Edward O. Shaffer, II, Dennis W. Smith, Jr., Paul H. Townsend, III, Kevin J. Bouck, Qing Shan J. Niu
  • Patent number: 7090896
    Abstract: A process for producing dielectric layers with low dielectric constants by thermal treatment of a sol-gel product of a multifunctional carbosilane, corresponding layers, and their use in the production of electronic components, are described.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: August 15, 2006
    Assignee: H.C. Starck GmbH
    Inventors: Stephan Kirchmeyer, Detlef Gaiser, Harald Kraus, Udo Merker
  • Patent number: 7060204
    Abstract: The present invention provides a composition comprising: (a) dielectric material; and (b) porogen comprising at least two fused aromatic rings wherein each of the fused aromatic rings has at least one alkyl substituent thereon and a bond exists between at least two of the alkyl substituents on adjacent aromatic rings. Preferably, the dielectric material is a composition comprising (a) thermosetting component comprising (1) optionally monomer of Formula I as set forth below and (2) at least one oligomer or polymer of Formula II as set forth below where Q, G, h, I, I, and w are as set forth below and (b) porogen.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: June 13, 2006
    Assignee: Honeywell International Inc.
    Inventors: Bo Li, Nancy Iwamoto, Boris Korolev, Paul G. Apen, Kreisler Lau, John G. Sikonia, Ananth Naman, Amauel Gebrebrhan, Nassrin Sleiman, Ruslan Zherebin
  • Patent number: 7056455
    Abstract: The present invention comprises a novel process for the preparation of carbon based structured materials with controlled topology, morphology and functionality. The nanostructured materials are prepared by controlled carbonization, or pyrolysis, of precursors comprising phase separated copolymers. The precursor materials are selected to phase separate and self organize in bulk, in solution, in the presence of phase selective solvents, at surfaces, interfaces or during fabrication, into articles, fibers or films exhibiting well-defined, self-organized morphology or precursors of well-defined, self-organized, bi- or tri-phasic morphology. Compositional control over the (co)polymers provides control over the structure of the phase separated precursor whose organization therein dictates the nanostructure of the material obtained after carbonization or pyrolysis, wherein each dimension of the formed structure can be predetermined.
    Type: Grant
    Filed: April 6, 2002
    Date of Patent: June 6, 2006
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Tomasz Kowalewski, David N. Lambeth, James Spanswick, Nicolay V. Tsarevsky
  • Patent number: 7030167
    Abstract: Methods for producing nanoporous structures are provided. In the subject methods, two or more, e.g., first and second, different types of self-assembling molecules are combined with each other under conditions sufficient to produce a composite ordered structure from the two or types of molecules. A feature of two or more molecules that are combined in this first step is that a portion of the molecules include cross-linking functionalities not found in the other portion of the molecules. The resultant self-assembled composite structure is then subjected to conditions sufficient for cross-linking of the portion of the molecules that includes the cross-linking functionalities to produce a stabilized composite structure. Finally, the remaining non-cross-linked molecules of the stabilized composite structure are separated from the stabilized composite structure to produce a nanoporous structure.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: April 18, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: Janelle Gunther
  • Patent number: 6992115
    Abstract: Crosslinked particles are provided that are useful in the manufacture of dielectric materials for use in electronic devices such as integrated circuits. The crosslinked particles are prepared by activating crosslinkable groups on synthetic polymer molecules, where the crosslinkable groups are inert until activated and, when activated, undergo an irreversible intramolecular crosslinking reaction to form crosslinked particles.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: January 31, 2006
    Assignee: International Business Machines Corporation
    Inventors: Craig Jon Hawker, Robert Dennis Miller, James Lupton Hedrick, Victor Yee-Way Lee
  • Patent number: 6984671
    Abstract: A method of producing an open, porous structure having an outer surface defining a shape having a bulk volume and having interconnecting openings extending throughout said volume and opening through said surface, and products resulting from the method. The method comprises preparing a viscous mixture comprising a sinterable powder dispersed in a sol of a polymer in a primary solvent, replacing the primary solvent with a secondary liquid in which the polymer is insoluble to produce a gel comprising an open polymeric network having the sinterable powder arranged therein, removing the secondary liquid from the gel; removing the polymer network, and sintering the sinterable powder to form the open, porous structure. Also disclosed are shaped, porous products resulting from methods of the invention.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: January 10, 2006
    Assignee: Phillips Plastics Corporation
    Inventors: James R. Johnson, Michael Edward Frencl