Removing A Liquid To Form A Cellular Product Patents (Class 521/64)
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Publication number: 20110028576Abstract: The invention relates to a process for manufacturing porous materials, which comprises the following steps: preparation of a solution of at least one structuring agent, having at least two structuring parts linked by at least one type of reversible non-covalent interaction; formation of the structured or porous material; separation of the at least two parts of the structuring agent at low temperature; and recovery of at least 50% by weight of the two non-degraded structuring parts and the porous material.Type: ApplicationFiled: December 11, 2008Publication date: February 3, 2011Applicants: TOTAL RAFFINAGE MARKETING, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Niki Baccile, Martin In, Corine In-Gerardin, Francis Luck, Julien Reboul, Sander Van Donk
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Patent number: 7879921Abstract: A fluid permeable material is disclosed. The fluid permeable material is suitable for use as a paver, brick, tile, stormwater entry grate and the like, without being limited thereto. The fluid permeable material described in this invention is light weight and has a height characteristic breaking strength, and flexural strength. The fluid permeable material described allows fluid to flow freely through the structure without impacting on the structural integrity of the composite material, and filters particulate contaminants from the fluid as it passes through the structure.Type: GrantFiled: May 30, 2005Date of Patent: February 1, 2011Inventor: John Arthur Cummins
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Patent number: 7850942Abstract: A method of making mesoporous carbon beads comprises steps of providing a nucleophilic component such as phenolic compound or phenol condensation prepolymer, dissolving the nucleophilic component in a pore former, together with at least one electrophilic cross-linking agent such as formaldehyde, paraformaldehyde, furfural and hexamethylene tetramine, dispersing the resulting solution into a mineral oil to form beads, condensing both the component and the agent in the presence of the pore former to form beads of porous resin, removing the beads from the mineral oil and carbonizing the beads to form mesoporous carbon beads.Type: GrantFiled: May 7, 2007Date of Patent: December 14, 2010Assignee: British American Tobacco (Investments) Ltd.Inventors: Stephen Robert Tennison, Oleksundr Prokopovych Kozynchenko, Volodymyr Vasyljovych Strelko, Andrew John Blackburn
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Publication number: 20100303520Abstract: An object of the present invention is to provide a porous material (resin composition) having high heat insulation properties, mechanical properties, and electrical properties by controlling function of a porous film by setting a porosity size, distribution of the porosity size, and a porosity ratio of the porous film in predetermined ranges. The resin composition according to the present invention is comprised of an engineering plastic having porous structure in which not less than 80% of a total porosity is comprised of independent porosities, a mean porosity size is not less than 0.01 ?m and not more than 0.9 ?m, and not less than 80% of the total porosity has a porosity size within ±30% of the mean porosity size.Type: ApplicationFiled: August 9, 2010Publication date: December 2, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Yohei Miyauchi, Naotake Sato, Yuichi Hashimoto, Toshihiro Kikuchi
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Patent number: 7838155Abstract: The present invention relates to an aqueous electrolyte solution absorber including an aqueous electrolyte solution absorbent polymer obtained by introducing a hydrophilic polar group to a water insoluble polymer and a material to be sucked. The aqueous electrolyte solution absorber is produced by filling a water permeable bag type member with the aqueous electrolyte solution absorbent polymer obtained by introducing the hydrophilic polar group to the water insoluble polymer and a material to be sucked. The aqueous electrolyte solution absorber is inexpensive and has a high safety, a broad applicable range and a good handling property upon transportation or storage. Thus, a large amount of aqueous electrolyte solution absorbers can be rapidly conveyed at one time even to a risky place where persons are endangered to convey the absorbers.Type: GrantFiled: August 5, 2005Date of Patent: November 23, 2010Assignee: Sony CorporationInventors: Yasuhito Inagaki, Haruo Watanabe
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Publication number: 20100273032Abstract: The invention relates to a method for removing diluent from a polymer extrudate, especially in connection with a process for producing a microporous membrane. The method involves contacting the extrudate with a second solvent in a first stage; contacting the extrudate from the first stage with a third solvent in a second stage; conducting a first stream away from the first stage and/or conducting a second stream away from the second stage; and cooling at least a portion of the first and/or second stream and separating therefrom at least one of a first phase rich in the second solvent or a second phase rich in the third solvent.Type: ApplicationFiled: December 12, 2008Publication date: October 28, 2010Applicant: TONEN CHEMICAL CORPORATIONInventors: Kotaro Kimishima, Sadakatsu Suzuki
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Patent number: 7820729Abstract: A process for preparing functionalised microporous polymers (which are also known as micro-cellular polymers or polyHIPE polymers (PHPs)) using intensified internal heating (for example by microwave irradiation).Type: GrantFiled: April 13, 2006Date of Patent: October 26, 2010Assignee: University of Newcastle Upon Tyne, c/o School of Chemical Engineering and Advanced MaterialsInventors: Galip Akay, Zainura Zainon Noor, Omer Faruk Calkan, Teresa Manguangua Ndlovu, David Robert Burke
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Patent number: 7812062Abstract: Olefin polymer-based, durable, open-cell foam compositions, structures and articles derived from same; methods for preparation of such foams; and use of the dry durable foams in various applications are disclosed. Further described is use of the foams and structures and articles made of same in absorption, filtration, insulation, cushioning and backing applications, and in particular for odor removal, hygiene and medical applications due to, among other properties, good absorption capabilities, softness and/or flexibility of the foams and their recyclable nature.Type: GrantFiled: May 25, 2007Date of Patent: October 12, 2010Assignee: Dow Global Technologies, Inc.Inventors: Gary M. Strandburg, Mark W. VanSumeren, Shaofu Wu, Luther E. Stockton
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Publication number: 20100247598Abstract: A novel method of manufacturing thick foams, especially molded thick foams useful as tissue scaffolds and other medical devices. Also disclosed are novel thick foams made using the process of the present invention, wherein such thick foams may be used as medical devices or components of medical devices.Type: ApplicationFiled: March 31, 2009Publication date: September 30, 2010Inventors: Dhanuraj S. Shetty, Iksoo Chun, Murty N. Vyakamam, Thomas Patrick Hyland
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Patent number: 7763348Abstract: The present invention relates to a cellulosic particle body comprising interconnected cellulosic small particles with small interparticle spaces and to a method of producing said cellulosic particle body which comprises dispersing cellulosic small particles in an alkaline medium and contacting the resulting suspension with a coagulating solution. In this specification, the above technology will be referred to as the first invention.Type: GrantFiled: November 9, 2007Date of Patent: July 27, 2010Assignee: Kaneka CorporationInventors: Kouji Fujita, Tsutomu Okuyama, Kouichiro Tanaka, Satoshi Takata
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Patent number: 7745504Abstract: Porous spherical particles of polyamide 11 or polyamide 12 can be produced by an industrially advantageous process which comprises the steps of mixing a polyamide solution of polyamide 11 or polyamide 12 dissolved in a phenol compound and a low molecular weight aliphatic alcohol which is a poor solvent for the polyamides but is well compatible with the phenol compound in the presence of a high molecular weight alkylene glycol to prepare a mixture solution having an initial viscosity of 10 mPa·s or more, and allowing the mixture solution to stand, to precipitate polyamide particles.Type: GrantFiled: February 2, 2006Date of Patent: June 29, 2010Assignee: Ube Industries, Ltd.Inventors: Kimio Nakayama, Tatsuya Shoji, Yukihiko Asano, Shigeru Yao
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Patent number: 7737189Abstract: The invention relates to a process for the preparation of monolithic xerogels and aerogels of silica/latex hybrids under subcritical conditions. In the two-stage synthesis of these alcogels in the presence of an acid-base catalyst, the hydrolysis and polycondensation of a silicon alkoxide are carried out in an organic medium containing excess water. A latex consisting of polybutyl methacrylate and polybutyl acrylate, modified with alkoxysilane groups, is first synthesized and then incorporated in the mixture either in the first stage in order to effect its co-hydrolysis with the silicon alkoxide, or in the second stage to effect its co-condensation with the previously hydrolysed colloidal silica. The resulting alcogels are aged, washed, and dried under subcritical conditions. This process gives hybrid products containing 0.1-50 wt-% of latex and having a density of 300-1300 kg/m3, a porosity of 40-85%, a specific surface area of 400-900 m2/g and a mean pore diameter of 2-12 nm.Type: GrantFiled: April 4, 2006Date of Patent: June 15, 2010Assignee: Instituto Superior TecnicoInventors: José Manuel Gaspar Martinho, Laura Maria Ilharco De Almeida Santos, José Paulo Sequira Farinha, Alexandra Marina Abrantes Fidalgo, Pedro Oliveira Martinho
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Patent number: 7704597Abstract: A porous film which has a crosslinked structure and, due to this structure, has excellent resistance to film breakage at high temperatures and excellent transverse-direction shape retention even at high temperatures, uses of the film are provided. The porous film comprises a crosslinked material of a resin composition containing a polyolefin. The film has a peak of shrinkage force in a transverse direction (TD) at a temperature region of the shutdown temperature or higher of the film, and the shrinkage force as measured at the peak being 80 N/cm2 or lower.Type: GrantFiled: October 13, 2004Date of Patent: April 27, 2010Assignee: Nitto Denko CorporationInventors: Shunsuke Noumi, Yutaka Yamamura, Seiryu Nakayama
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Patent number: 7691912Abstract: The invention provides reinforced aerogel monoliths as well as fiber reinforced composites thereof for a variety of uses. Compositions and methods of preparing the monoliths and composites are also provided.Type: GrantFiled: January 5, 2005Date of Patent: April 6, 2010Assignee: Aspen Aerogels, Inc.Inventors: Duan Li Ou, George L. Gould
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Patent number: 7691911Abstract: The present invention relates to cross-linked polyolefin aerogels in simple and fiber-reinforced composite form. Of particular interest are polybutadiene aerogels. Especially aerogels derived from polybutadienes functionalized with anhydrides, amines, hydroxyls, thiols, epoxies, isocyanates or combinations thereof.Type: GrantFiled: November 28, 2005Date of Patent: April 6, 2010Assignee: Aspen Aerogels, Inc.Inventors: Je Kyun Lee, Gerogle L. Gould
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Publication number: 20100075056Abstract: A method is provided for fabricating a porous elastomer, the method comprising the steps of: providing a predetermined amount of a liquid elastomer and a predetermined amount of a porogen; mixing the liquid elastomer and the porogen in vacuum until a homogenous emulsion without phase separation is formed; curing the homogenous emulsion until polymerizations of the emulsion is reached, thereby forming a cured emulsion; and removing the porogen from the cured emulsion. The method can advantageously be used for forming biocompatible porous elastomers and biocompatible porous membranes.Type: ApplicationFiled: September 21, 2009Publication date: March 25, 2010Applicant: IMECInventors: Fabrice Axisa, Pritesh Dagur, Jan Vanfleteren
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Patent number: 7674837Abstract: Gelled biopolymer based foams are disclosed. The gelled foams comprise a cross-linked biopolymer, preferably alginate; optionally, a foaming agent such as hydroxy propyl methyl cellulose; and a plasticizer, preferably glycerin sorbitol, or a mixture thereof, that forms the predominant portion of the gelled foam. The foams are soft and pliable and have high absorbency. They are used as wound dressing materials, controlled release delivery systems, cell culture, barrier media for preventing tissue adherence, and bioabsorbable implants. They also have various personal care applications, especially in oral hygiene, and can be used in food applications.Type: GrantFiled: September 2, 2004Date of Patent: March 9, 2010Assignee: FMC Biopolymer ASInventors: Olav Gaserod, Peder Oscar Andersen, Rolf Myrvold
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Publication number: 20100056654Abstract: A bone cement is shown that includes a monomer, and a non-reactive substance that is fully miscible with the monomer. A resulting cured bone cement exhibits desirable properties such as modification in a stiffness of the material. Modified properties such a stiffness can be tailored to match bone properties and reduce an occurrence of fractures adjacent to a region repaired with bone cement. One example includes adjacent vertebral body fractures in vertebroplasty procedures.Type: ApplicationFiled: February 29, 2008Publication date: March 4, 2010Inventors: Elliott Gruskin, Andreas Boger, Andrea Montali, Kurtis Wheeler
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Patent number: 7671101Abstract: Gelled biopolymer based foams are disclosed. The gelled foams comprise a cross-linked biopolymer, preferably alginate; optionally, a foaming agent such as hydroxy propyl methyl cellulose; and a plasticizer, preferably glycerin sorbitol, or a mixture thereof, that forms the predominant portion of the gelled foam. The foams are soft and pliable and have high absorbency. They are used as wound dressing materials, controlled release delivery systems, cell culture, barrier media for preventing tissue adherence, and bioabsorbable implants. They also have various personal care applications, especially in oral hygiene, and can be used in food applications.Type: GrantFiled: November 3, 2006Date of Patent: March 2, 2010Assignee: FMC Biopolymer ASInventors: Olav Gaserod, Peder Oscar Andersen, Rolf Myrvold
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Patent number: 7671102Abstract: Gelled biopolymer based foams are disclosed. The gelled foams comprise a cross-linked biopolymer, preferably alginate; optionally, a foaming agent such as hydroxy propyl methyl cellulose; and a plasticizer, preferably glycerin sorbitol, or a mixture thereof, that forms the predominant portion of the gelled foam. The foams are soft and pliable and have high absorbency. They are used as wound dressing materials, controlled release delivery systems, cell culture, barrier media for preventing tissue adherence, and bioabsorbable implants. They also have various personal care applications, especially in oral hygiene, and can be used in food applications.Type: GrantFiled: November 15, 2006Date of Patent: March 2, 2010Assignee: FMC Biopolymer ASInventors: Olav Gaserod, Peder Oscar Andersen, Rolf Myrvold
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Publication number: 20100041779Abstract: The present invention relates to a process for manufacturing a microporous polyolefin film which can be used for various battery separators, separating filters and membranes for microfiltration. The process for manufacturing a microporous polyolefin film according to the invention comprises mixing/extrusion through efficient and separate injection of 15-55% by weight of polyolefin (Component I), and 85-45% by weight of a diluent (Component II) which forms thermodynamic single phase with the polyolefin and a diluent (Component III) which can undergo thermodynamic liquid-liquid phase separation with the polyolefin, into an extruder.Type: ApplicationFiled: December 12, 2007Publication date: February 18, 2010Inventors: Young-keun Lee, Jang-weon Rhee, Gwi-gwon Kang, In-hwa Jung
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Publication number: 20090247655Abstract: A method for preparing permanently hydrophobic aerogel and permanently hydrophobic aerogel prepared by the method. The method comprises adding sodium silicate to HCl at 30 to 90° C. until an acidity reaches pH 3-5, to form silica hydrogel under acidic conditions of pH 3-5, washing the silica hydrogel with distilled water using a mixer, followed by filtering, adding the silica hydrogel to a silylating solution of silylating agent in n-butanol at pH 1-5 using an acid selected from hydrochloric acid, sulfuric acid, phosphoric acid and nitric acid, to simultaneously conduct silylation and solvent replacement, and drying the silica hydrogel; The method has the following advantages; i) silylation and solvent replacement can be simultaneously conducted, ii) n-butanol is used as a reaction solvent instead of methanol upon silylation, thus obtaining a thermal conductivity comparable to conventional aerogel powders, iii) silylation is conducted under improved conditions, i.e.Type: ApplicationFiled: October 10, 2007Publication date: October 1, 2009Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Gyung-Soo Kim, Hyun-Aee Chun, Hyun-Chul Choi, Young-Jung Kim
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Patent number: 7579385Abstract: Disclosed are dried porous crumbs of a hydrogenated block copolymer which is obtained by hydrogenating a block copolymer comprising (a) at least one polymer block composed mainly of aromatic vinyl monomer units and (b) at least one polymer block composed mainly of conjugated diene monomer units, and which has a molecular weight of 70,000 or more. The dried porous crumbs have a water content of 1% by weight or less and having the capability of absorbing an oil in an amount of 1.0 or more, in terms of the ratio of the weight of an oil, which is absorbed by the dried porous crumbs when the dried porous crumbs are immersed in the oil at 25° C. under atmospheric pressure for 1 minute, to the weight of the dried porous crumbs. Also disclosed is a method for producing the same.Type: GrantFiled: April 28, 1999Date of Patent: August 25, 2009Assignee: Asahi Kasei Kabushiki KaishaInventors: Yasumasa Yamakoshi, Toshinori Shiraki, Masami Kamaya
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Patent number: 7544720Abstract: Water dispersible or water soluble porous bodies comprising a three dimensional open-cell lattice containing 10 to 95% by weight of a polymeric material which is soluble in water, and, less than 5% by weight of a surfactant, said porous bodies having an intrusion volume as measured by mercury porosimetry (as hereinafter described) of at least about 3 ml/g, and, with the proviso that said porous bodies are not spherical beads having an average bead diameter of 0.2 to 5 mm.Type: GrantFiled: January 28, 2005Date of Patent: June 9, 2009Assignee: Conopco, Inc.Inventors: Andrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
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Publication number: 20090104401Abstract: A method for producing an alkylsiloxane aerogel of the invention includes (a) a step of letting a reaction to produce a sol and a reaction to convert the sol to a gel take place in one step by adding a silicon compound whose molecules have a hydrolysable functional group and a nonhydrolysable functional group to an acidic aqueous solution containing a surfactant, and (b) a step of drying the gel produced in the step (a). In the step (b), the gel is dried at a temperature and a pressure below the critical point of a solvent used to dry the gel.Type: ApplicationFiled: July 19, 2006Publication date: April 23, 2009Applicants: DYNAX CORPORATION, KYOTO UNIVERSITYInventors: Kazuki Nakanishi, Kazuyoshi Kanamori, Mamoru Aizawa, Kentaro Tamura
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Patent number: 7521485Abstract: Organic, small pore area materials (“SPMs”) are provided comprising open cell foams in unlimited sizes and shapes. These SPMs exhibit minimal shrinkage and cracking. Processes for preparing SPMs are also provided that do not require supercritical extraction. These processes comprise sol-gel polymerization of a hydroxylated aromatic in the presence of at least one suitable electrophilic linking agent and at least one suitable solvent capable of strengthening the sol-gel. Also disclosed are the carbonized derivatives of the organic SPMs.Type: GrantFiled: November 16, 2005Date of Patent: April 21, 2009Assignee: American Aerogel CorporaitionInventors: Donald F Albert, Greg R Andrews, Joseph W Bruno
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Publication number: 20090036560Abstract: A foaming composition is provided, which includes water, pulp, alginic ester, and a surfactant. A preferable example of the alginic ester is propylene glycol alginate. The alginic ester may be mixed therein at a mixing amount ranging from 5 parts by weight to 15 parts by weight based on 100 parts by weight of the pulp.Type: ApplicationFiled: October 3, 2008Publication date: February 5, 2009Inventors: Akiko SUZUKI, Kentaro YOSHIDA, Masaaki YAMAMOTO
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Patent number: 7485227Abstract: The present invention relates to polymer films and a polymer membrane having an improved mechanical property profile produced therefrom, to a process for producing them and to their use. The polymer films, polymer membranes and separation membranes of the invention are produced from selected polymer raw materials and have excellent chemical, thermal. and mechanical properties as are required for use as polymer electrolyte membranes (PEMs) in PEM fuel cells or in apparatuses for the filtration and/or separation of gases and/or liquids or for reverse osmosis.Type: GrantFiled: August 30, 2006Date of Patent: February 3, 2009Assignee: BASF Fuel Cell GmbHInventors: Joachim Kiefer, Oemer Uensal, Jochen Baurmeister, Frauke Jordt
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Publication number: 20090029147Abstract: The invention provides reinforced aerogel monoliths as well as reinforced composites thereof for a variety of uses. Compositions and methods of preparing the monoliths and composites are also provided. Application of these materials in transparent assemblies is also discuss.Type: ApplicationFiled: June 12, 2007Publication date: January 29, 2009Applicant: ASPEN AEROGELS, INC.Inventors: Yuehua Tang, Andrew Polli, Carl J. Bilgrien, Donald R. Young, Wendell E. Rhine, George L. Gould
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Patent number: 7482390Abstract: 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: GrantFiled: June 30, 2005Date of Patent: January 27, 2009Assignee: Phillips Plastics CorporationInventors: James R. Johnson, Michael Edward Frencl
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Publication number: 20090018224Abstract: The invention relates to the drying of foams by means of microwave radiation, and in particular, where the foams are obtained from aqueous polyurethane dispersions (PU dispersions).Type: ApplicationFiled: July 10, 2008Publication date: January 15, 2009Applicant: Bayer MaterialScience AGInventors: Meike Niesten, Steffen Hofacker, Thorsten Rische, Sebastian Doerr, Thorsten Kraemer
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Publication number: 20080305175Abstract: There is disclosed a method of making a micro-container. The method comprises the step of evaporating a swelling agent solution absorbed in a polymer micro-particle to form an inner void therein. The evaporating step is undertaken under conditions to form a conduit extending through the shell wall of said micro-particle and into the inner void.Type: ApplicationFiled: November 29, 2007Publication date: December 11, 2008Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Yubo Wang, Wei Zheng, Mingyong Han, Kaiyu Wang
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Patent number: 7459488Abstract: A process and polymer foam composition for removing hydrocarbon material from wanted material containing water by bringing an isocyanate-containing prepolymer and a gaseous expansion agent, with or without a diluent and/or cell control agent, into contact with the materials, allowing the composition to react with the water to form a flexible foam and removing the polymer foam obtained from the wanted material.Type: GrantFiled: March 2, 2006Date of Patent: December 2, 2008Assignee: Polyfoam Products, Inc.Inventors: Pat Donahue, E. Richard Huber, Pat L. Murray
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Patent number: 7456228Abstract: Olefin polymer-based, durable, open-cell foam compositions, structures and articles derived from same; methods for preparation of such foams; and use of the dry durable foams in various applications are disclosed. Further described is use of the foams and structures and articles made of same in absorption, filtration, insulation, cushioning and backing applications, and in particular for odor removal, hygiene and medical applications due to, among other properties, good absorption capabilities, softness and/or flexibility of the foams and their recyclable nature.Type: GrantFiled: May 25, 2007Date of Patent: November 25, 2008Assignee: Dow Global Technologies Inc.Inventors: Gary M. Strandburg, Mark W. VanSumeren, Shaofu Wu, Luther E. Stockton
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Patent number: 7446131Abstract: A porous polymeric matrix containing at least one natural polymer and at least one synthetic polymer and optionally at least one cation. Furthermore, a method of making a porous polymeric matrix involving mixing at least one natural polymer and inorganic salts with a solution comprising at least one solvent and at least one synthetic polymer to form a slurry, casting the slurry in a mold and removing the solvent to form solid matrices, immersing the solid matrices in deionized water to allow natural polymer cross-linking and pore creation to occur simultaneously, and drying the matrices to create a porous polymeric matrix; wherein the matrix contains a cation.Type: GrantFiled: February 15, 2005Date of Patent: November 4, 2008Assignee: The United States of America as represented by the Secretary of AgricultureInventors: LinShu Liu, Marshall L. Fishman, Kevin B. Hicks
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Patent number: 7435761Abstract: Disclosed is a microporous polyethylene film for a battery separator and a method of producing the same. The microporous polyethylene film comprises a resin mixture, which includes 100 parts by weight of composition containing 20-50 wt % polyethylene with a weight average molecular weight of 5×104-3×105 (component I) and 80-50 wt % diluent (component II), 0.1-2 parts by weight of peroxide (component III), and 0.05-0.5 parts by weight of anti-oxidant (component IV). The microporous polyethylene film has a puncture strength of 0.22 N/?m or more and a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more. The present invention increases production efficiency of the microporous film, and improves performances and stability of the battery when the microporous polyethylene film is used in a battery separator.Type: GrantFiled: September 20, 2004Date of Patent: October 14, 2008Assignee: SK Energy Co., Ltd.Inventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
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Patent number: 7432311Abstract: A “high internal phase polymeric emulsion” (“HIPPE”) composition is described which comprises an emulsion of a discrete phase (component A) and a continuous phase (component B), wherein the volume fraction of the discrete phase is the majority fraction (on a volume basis) of the total volume of the emulsion. A compatibilizer, component C, is used to lower the interfacial tension between the phases containing components A and B. A process is described for creating such HIPPE composition in which the A component is a colloidal polymer particle.Type: GrantFiled: March 18, 2005Date of Patent: October 7, 2008Assignee: The Regents of the University of CaliforniaInventors: Raffaele Mezzenga, Glenn H. Fredrickson, Edward J. Kramer
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Publication number: 20080226721Abstract: Porous bodies which are soluble or dispersible in non-aqueous media comprising a three dimensional open-cell lattice containing (a) 10 to 70% by weight of a polymeric material which is soluble in water immiscible non-aqueous media and (b) 30 to 90% by weight of a surfactant, said porous bodies having an intrusion volume as measured by mercury porosimetry of at least 3 ml/g.Type: ApplicationFiled: December 23, 2004Publication date: September 18, 2008Inventors: Andrew Ian Cooper, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
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Publication number: 20080203609Abstract: The present invention relates to processes for hydrolyzing polyphosphoric acid in polyareneazole filaments.Type: ApplicationFiled: March 27, 2006Publication date: August 28, 2008Applicant: E.I. DuPont De Nemours and CompanyInventor: Christopher W. Newton
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Publication number: 20080203610Abstract: The present invention relates to processes for hydrolyzing polyphosphoric acid in spun multifilament yarns.Type: ApplicationFiled: March 27, 2006Publication date: August 28, 2008Inventors: Christopher William Newton, Steven R. Allen, Stephen D. Moore
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Patent number: 7393878Abstract: The present invention is directed to a method for reducing monomer loss during curing of a high internal phase emulsion. The method has the steps of: forming a water-in-oil emulsion, curing the monomer component in the emulsion in a saturated steam environment, and forming a saturated polymeric foam material. The water-in-oil emulsion has an aqueous phase and an oil phase comprising a monomer component.Type: GrantFiled: March 2, 2005Date of Patent: July 1, 2008Assignee: The Procter & Gamble CompanyInventors: Thomas Allen Desmarais, Mark Lewis Agerton, Paul Martin Lipic, Daniel Joseph Valerio
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Patent number: 7384988Abstract: Method and devices for rapidly fabricating monolithic aerogels, including aerogels containing chemical sensing agents, are disclosed. The method involves providing a gel precursor solution or a pre-formed gel in a sealed vessel with the gel or gel precursor at least partially filling the internal volume of the vessel and the sealed vessel being positioned between opposed plates of a hot press; heating and applying a restraining force to the sealed vessel via the hot press plates (where the restraining force is sufficient to minimize substantial venting of the vessel); and then controllably releasing the applied restraining force under conditions effective to form the aerogel. A preferred device for practicing the method is in the form of a hot press having upper and lower press plates, and a mold positioned between the upper and lower plates. Doped aerogel monoliths and their use as chemical sensors are also described.Type: GrantFiled: August 26, 2004Date of Patent: June 10, 2008Assignee: Union CollegeInventors: Ben M. Gauthier, Ann M. Anderson, Smitesh Bakrania, Mary K. Mahony, Ronald B. Bucinell
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Patent number: 7361694Abstract: Olefin polymer-based, durable, open-cell foam compositions, structures and articles derived from same; methods for preparation of such foams; and use of the dry durable foams in various applications are disclosed. Further described is use of the foams and structures and articles made of same in absorption, filtration, insulation, cushioning and backing applications, and in particular for odor removal, hygiene and medical applications due to, among other properties, good absorption capabilities, softness and/or flexibility of the foams and their recyclable nature.Type: GrantFiled: February 28, 2005Date of Patent: April 22, 2008Assignee: Dow Global Technologies Inc.Inventors: Gary M. Strandburg, Mark W. VanSumeren, Shaofu Wu, Luther E. Stockton
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Patent number: 7361693Abstract: Low density polymeric beads made by polymerizing monomeric building blocks into large crosslinked polymer molecules in porous, spherical bead form by droplet or suspension polymerization in the presence of a porogen.Type: GrantFiled: July 18, 2005Date of Patent: April 22, 2008Assignee: Sun Drilling Products CorporationInventors: Robert L. Albright, Richard Mapp
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Publication number: 20080070999Abstract: The invention relates to polyurethane foam forming compositions which produce hydrophilicized polyurethane foams, in particular foams which are suitable as wound dressing foams. These compositions comprise (I) a polyurethane dispersion and (II) specific additives including one or more alkylpolyglycoside. The process of producing these foams comprises frothing and drying these polyurethane foam forming compositions.Type: ApplicationFiled: September 12, 2007Publication date: March 20, 2008Inventors: Michael Mager, Jan Schonberger
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Patent number: 7341775Abstract: Provided are a composition for forming film which can form a porous film excelling in dielectric constant, adhesiveness, uniformity of the film, mechanical strength and having low hygroscopicity; a porous film and a method for forming the film; and a high-performing and highly reliable semiconductor device comprising the porous film inside. More specifically, provided is a composition for forming porous film, comprising a surfactant and a solution comprising polymer obtainable by hydrolyzing and condensing, in the presence of the surfactant, one or more of alkoxysilane represented by Formula (1) and one or more of alkoxysilane represented by Formula (2): (R1)mSi(OR2)4-m??(1) R3Si(R4)n(OR5)3-n??(2) Also provided is a method for forming porous film comprising a step of applying said composition on a substrate to form film and a step of transforming the film into porous film.Type: GrantFiled: November 12, 2003Date of Patent: March 11, 2008Assignee: Matsushita Electric Industrial Co. Ltd.Inventors: Yoshitaka Hamada, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
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Patent number: 7323527Abstract: A method for producing a macroporous acrylic resin in an aqueous suspension from a C1-C4 alkyl acrylate, an organic solvent and a crosslinker.Type: GrantFiled: June 8, 2006Date of Patent: January 29, 2008Assignee: Rohm and Haas CompanyInventors: James Charles Bohling, Roy Jeffrey Furbank, Bruce Maurice Rosenbaum
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Patent number: 7319114Abstract: Hollow polymer particles are provided to have an average particle diameter of 15 ?m or more and 500 ?m or less and a 10%-compressive strength of 1.5 MPa or more, and the hollow polymer particle includes a hollow portion in the interior. In addition, a porous ceramic filter is provided by firing a shaped material composed of a mixture in which the above-described hollow polymer particles are mixed to disperse in a ceramic composition.Type: GrantFiled: March 12, 2002Date of Patent: January 15, 2008Assignees: Sekisui Chemical Co., Ltd., Tokuyama Sekisui Co., Ltd.Inventors: Takahiro Ohmura, Yasushi Nakata, Yasuhiro Kawaguchi, Takahiro Yoshida
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Patent number: 7311862Abstract: A method of manufacturing a chemical-mechanical polishing (CMP) pad comprises the steps of (a) forming a layer of a polymer resin liquid solution (i.e., a polymer resin dissolved in a solvent); (b) inducing a phase separation in the layer of polymer solution to produce an interpenetrating polymeric network comprising a continuous polymer-rich phase interspersed with a continuous polymer-depleted phase in which the polymer-depleted phase constitutes about 20 to about 90 percent of the combined volume of the phases; (c) solidifying the continuous polymer-rich phase to form a porous polymer sheet; (d) removing at least a portion of the polymer-depleted phase from the porous polymer sheet; and (e) forming a CMP pad therefrom.Type: GrantFiled: November 2, 2005Date of Patent: December 25, 2007Assignee: Cabot Microelectronics CorporationInventor: Abaneshwar Prasad
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Publication number: 20070287760Abstract: A method for producing a macroporous acrylic resin in an aqueous suspension from a C1-C4 alkyl acrylate, an organic solvent and a crosslinker.Type: ApplicationFiled: June 8, 2006Publication date: December 13, 2007Inventors: James Charles Bohling, Roy Jeffrey Furbank, Bruce Maurice Rosenbaum