Cellular Product Derived From Silicon Containing Reactant Patents (Class 521/154)
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Publication number: 20090038512Abstract: A radiation diffractive material that diffracts radiation according to Bragg's law is disclosed. The material includes an ordered periodic array of diffracting regions received within a matrix, the matrix comprising an inorganic sol-gel.Type: ApplicationFiled: August 8, 2007Publication date: February 12, 2009Applicant: PPG INDUSTRIES OHIO, INC.Inventors: Xiangling Xu, Shan Cheng, Sean Purdy, Noel R. Vanier
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Publication number: 20090042999Abstract: Example embodiments provide a composition for a polyurethane foam including a silane precursor and/or polysilsesquioxane resin, and a preparation method of the polyurethane foam. A polyurethane foam having improved mechanical properties and insulation characteristic can be obtained by including the silane precursor and/or a polysilsesquioxane in the formation of the polyurethane foam.Type: ApplicationFiled: March 18, 2008Publication date: February 12, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Gyu LEE, Myung Sup JUNG
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Patent number: 7482391Abstract: Room-temperature vulcanized (RTV) foaming compositions are disclosed. The compositions include at least one enoxysilyl functional group and/or at least one alkoxysilyl functional group, at least one amine catalyst, and at least one silicon hydride functional group. Also disclosed are methods of preparing such compositions and methods of using such compositions, methods for making a gasket, and articles of manufacture.Type: GrantFiled: May 9, 2005Date of Patent: January 27, 2009Assignee: Henkel CorporationInventors: Robert Cross, Lester D. Bennington, Bahram Issari, John Kerr
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Patent number: 7482389Abstract: 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: GrantFiled: April 20, 2005Date of Patent: January 27, 2009Assignee: International Business Machines CorporationInventors: 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
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Patent number: 7479509Abstract: Provided are a porous organosilicate polymer composite prepared by heating an organic/inorganic hybrid polymer in which an organosilicate polymer is chemically bonded to a radial pore-forming polymer ended with a hydrolyzable alkoxysilyl group and used as a core molecule, and a semiconductor device using an organosilicate polymer composite film including the porous organosilicate polymer composite. The organosilicate polymer composite film has a very low dielectric constant, and thus, is useful as a dielectric film of the semiconductor device.Type: GrantFiled: August 20, 2004Date of Patent: January 20, 2009Assignee: Postech FoundationInventors: Moonhor Ree, Weontae Oh, Yong Taek Hwang, Byeongdu Lee
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Patent number: 7479530Abstract: A polymer comprising one or more macromonomer units selected from the group consisting of polysiloxane, perfluoroalkylpolyether (PFPE), fluorinated poly(meth)acrylate, polyalkyl (meth)acrylate, polyolefin and fluorinated polyolefin, and one or more charged units (such as an anionic, cationic or zwitter-ionic monomer), formed from a polymerization medium containing an aqueous solution of charged units and use of this polymer as an intraocular lens for the implantation into or onto the cornea. Another aspects relates to a process for coating the above polymer with an adhesive comprising covalently coupling co-reactive surface functional groups of a natural or synthetic polymer with functional groups present (or introduced) on the surface of the macromonomer containing polymer, followed by covalently coupling a multifunctionally activated compound having at least one functional group that is co-reactive to the reactive groups of the natural or synthetic polymer.Type: GrantFiled: May 21, 2003Date of Patent: January 20, 2009Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Timothy Charles Hughes, Grace Yim Ngan Chan
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Publication number: 20090018228Abstract: Processes comprising: (a) providing a composition comprising at least one silane-terminated polyurethane preploymer prepared by a process comprising: reacting (A) at least one polyether having a number average molecular weight (Mn) of 2000 to 8000 g/mol, and comprising 10 to 30 wt % ethylene oxide units based on all alkylene oxide units in the polyether; with (B) at least one isocyanate and alkoxysilane group-containing compound of the formula (I): wherein each of X, Y, and Z independently represents a C1-C8 alkyl or a C1-C8 alkoxy residue, with the proviso that at least one of X, Y, and Z represents a C1-C8 alkoxy group; and wherein R is an at least bifunctional, organic residue; (b) foaming the composition, and (c) curing the foamed composition in the presence of water; and uses of polyurethane foams prepared thereby.Type: ApplicationFiled: July 10, 2008Publication date: January 15, 2009Applicant: Bayer MaterialScience AGInventors: Michael Mager, Michael Ludewig, Mathias Matner
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Publication number: 20090012191Abstract: This invention relates to a method for creating a lightweight cementatious material for use in building construction. The material can be formed in panels to replace conventional drywall gypsum board. In the disclosed form the product does not include any paper or other components that serve as food for mold and therefore is mold resistant. The material has a composition of Portland cement, foamed glass beads and an acrylic co-polymer. In some forms, sand may be used as a filler and in others, the filler may be polystyrofoam particles and vermiculite.Type: ApplicationFiled: July 2, 2008Publication date: January 8, 2009Inventor: Scott Deans
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Publication number: 20080281008Abstract: Composition in the foam form containing a continuous oily phase and at least one structuring agent for the oily phase chosen from polymeric structuring agents. Method of use. Kit.Type: ApplicationFiled: May 6, 2008Publication date: November 13, 2008Applicant: L'OREALInventors: Patrice Styczen, Xavier Ray, Philippe Gabin
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Publication number: 20080269368Abstract: Porous hybrid inorganic/organic materials comprising ordered domains are disclosed. Methods of making the materials and use of the materials for chromatographic are also disclosed.Type: ApplicationFiled: July 15, 2005Publication date: October 30, 2008Applicant: Waters Investments LimitedInventors: Kevin D. Wyndham, John E. O'Gara
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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: 20080221232Abstract: The disclosure is directed to a method of making a silicone composition includes mixing a silicone formulation in a mixing device and adding an in situ adhesion promoter to the mixing device. The disclosure is further directed to articles made from the above-mentioned silicone composition.Type: ApplicationFiled: March 7, 2008Publication date: September 11, 2008Applicant: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATIONInventors: Duan Li Ou, Mark W. Simon
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Publication number: 20080188581Abstract: Provided is a silica nanocomposite including silica and a siloxane-based polymer covalently bonded to the silica.Type: ApplicationFiled: February 4, 2008Publication date: August 7, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Gyu Lee, Myung Dong Cho, Sang Hoon Joo
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Publication number: 20080188578Abstract: Precursors are provided for dielectric compositions that are useful in the manufacture of electronic devices such as integrated circuit devices and integrated circuit packaging devices. The dielectric compositions are prepared by crosslinking a thermally decomposable porogen to a host polymer via a coupling agent, followed by heating to a temperature suitable to decompose the porogen. The porous materials that result have dielectric constants of less than 2.4.Type: ApplicationFiled: February 26, 2008Publication date: August 7, 2008Applicant: International Business MachinesInventors: Craig Jon Hawker, James L. Hedrick, Robert D. Miller, Willi Volksen
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Publication number: 20080182914Abstract: The present invention relates to a porous membrane wherein said porous membrane comprises a cured coating composition that comprised prior to curing at least one type of monomer wherein the miscibility of water with said monomer at 25° C. is between 2 weight % and 50 weight %, and a solvent. The invention further relates to image recording materials, in which these porous membranes are used.Type: ApplicationFiled: January 28, 2008Publication date: July 31, 2008Applicant: FUJIFILM Manufacturing Europe B.V.Inventors: Yujiro Itami, Akira Kase
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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: 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: 7338982Abstract: A mesoporous material is described. It includes a network of interconnected pores within an L3 phase structure. The pores include pore walls of a silicate material functionalized with at least one metal cation—usually a transition metal. Articles which include the mesoporous material are also disclosed, along with methods for making the mesoporous material.Type: GrantFiled: June 15, 2004Date of Patent: March 4, 2008Assignee: General Electric CompanyInventors: Sergio Paulo Martins Loureiro, Mohan Manoharan
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Patent number: 7309722Abstract: The present invention provides a composition for film formation which can form a porous film that excels in dielectric properties, adhesion, film consistency and mechanical strength, and that is easily thinned; a porous film and a method for forming the same, and a high-performing and highly reliable semiconductor device which contains the porous film inside. More specifically, the composition for forming a porous film comprises a solution containing an amorphous polymer which is obtained by hydrolyzing and condensing at least one silane compound expressed by the general formula (R1)nSi(OR2)4?n, and a zeolite sol which is formed by using a quaternary ammonium hydroxide. The method for forming a porous film comprises a coating step for coating the composition for forming a porous film; a subsequent drying step; and a porousness forming step.Type: GrantFiled: November 7, 2003Date of Patent: December 18, 2007Assignees: Shin-Etsu Chemical Co. Ltd., Matsushita Electric Co., LtdInventors: Tsutomu Ogihara, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
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Patent number: 7285578Abstract: A water-in-oil emulsion composition for forming a silicone elastomer porous material contains a liquid silicone rubber material which forms a silicone elastomer upon curing, a silicone oil material which has a surface activation function, and water.Type: GrantFiled: November 12, 2004Date of Patent: October 23, 2007Assignee: Nitto Kogyo Co., Ltd.Inventors: Naka Hirayama, Atsushi Ikeda
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Patent number: 7268169Abstract: A substantially closed-cell silicone elastomer porous body includes cells with diameters of 50 ?m or less, which occupy 50% or more of all the cells, and has a closed cell rate of 60% or more.Type: GrantFiled: November 12, 2004Date of Patent: September 11, 2007Assignee: Nitto Kogyo Co., Ltd.Inventors: Naka Hirayma, Atsushi Ikeda
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Patent number: 7205338Abstract: Provided is a coating liquid for forming a porous film having desirably controlled thickness and having excellent dielectric and mechanical properties, using the conventional semiconductor process. Specifically, provided is a composition for forming a porous film comprising a condensation product and an organic solvent wherein the condensation product is obtained by hydrolysis and condensation, at presence of a basic catalyst, of one or more silane compounds represented by formula (1): R1kSi(OR2)4-k, and one or more crosslinking agents represented by formula (2): {Xj(Y)3-jSi-(L)m-}nMZ4-n. Moreover, a method for manufacturing a porous film comprising steps of applying said composition so as to form a film, drying the film and heating the dried film so as to hardent the film, and others are provided.Type: GrantFiled: March 9, 2004Date of Patent: April 17, 2007Assignees: Shin-Etsu Chemical Co., Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Tsutomu Ogihara, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
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Patent number: 7067563Abstract: A binder which is a graft polymer bearing at least two alkoxysilyl groups of the formula —Si(R1)m(OR2)3-m in which R1 and R2 are independently linear or branched alkyl groups containing 1 to 6 carbon atoms and m is an integer of 0 to 2. The graft polymer has graft branches on a graft base. The graft polymer contains at least 0.5% by weight, based on the graft base, of graft branches.Type: GrantFiled: July 18, 2001Date of Patent: June 27, 2006Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Johann Klein, Wilfried Huebner, Gaby Schilling, Felicitas Kolenda, Wolfgang Klauck
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Patent number: 6991678Abstract: A process for the preparation of crystalline microporous titanium silicates using ethylsilicate-40 and titanium peroxide as silicon and titanium sources respectively is described. The process permits a significant decrease in the production cost of titanium silicate containing higher amount of titanium (Si/Ti=20) because of cheaper raw materials as well as reduction in the quantity of tetarpropylammonium hydroxide (TPAOH) template (SiO2:TPAOH=1:0.06–0.1) required for preparation. The material obtained by the present invention is useful as an active catalyst in the reactions such as oxidation of hydrocarbons, alcohols, sulphides, and thioethers.Type: GrantFiled: May 30, 2003Date of Patent: January 31, 2006Assignee: Council of Scientific and Industrial ResearchInventors: Mohan Keraba Dongare, Pratap Tukaram Patil, Kusum Madhukar Malshe
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Patent number: 6972313Abstract: The invention concerns a silicone composition cross-linkable by hydrosilylation into adhesive gel and absorber, characterized in that it comprises: (I) at least a polyorganosiloxane POS (I); (II) at least a polyorganosiloxane POS (II); (III) at least an adhesive promoter (III); (IV) hollow organic microspheres; (V) optionally at least a polyorganosiloxane POS (V) particularly useful as diluent of POS (I); (VI) an effective amount of hydrosilylation catalyst, preferably of the platinous type.Type: GrantFiled: October 4, 2002Date of Patent: December 6, 2005Inventors: Fabienne Howe, Christian Pusineri
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Patent number: 6967221Abstract: A silicone rubber is produced by curing a silicone rubber composition which includes (A) a curable organopolysiloxane composition and (B) at least one hollow organic resin filler whereby the filler forms cells in an open-cell state. The open-cell state gives the silicone rubber good cushioning property and a low compression set.Type: GrantFiled: March 4, 2003Date of Patent: November 22, 2005Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Noriyuki Meguriya
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Patent number: 6933334Abstract: In accordance with the present invention, a material for use in a thermal protection system contains a silicone resin binder, a silicone catalyst, ground cork, glass ecospheres, and a silicone solvent. In a preferred embodiment, the material consists of from 65.3 wt % to 72.3 wt % silicone resin, from 6.5 wt % to 7.25 wt % silicone catalyst, from 7.22 wt % to 7.98 wt % ground cork, from 8.36 wt % to 9.24 wt % glass ecospheres, and the balance silicone solvent.Type: GrantFiled: June 25, 2003Date of Patent: August 23, 2005Assignee: United Technologies CorporationInventors: Steven A. Cosby, Matthew Kelly, Beth Van Waveren
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Patent number: 6890641Abstract: In accordance with the present invention, compositions and methods are provided in which the mechanical strength and durability of a precursor material having a plurality of pores is increased by a) providing a precursor material; b) treating the precursor material to form a nanoporous aerogel, preferably by using a supercritical drying process; c) providing a blending material having a reinforcing component and a volatile component; d) combining the nanoporous aerogel and the blending material to form an amalgamation layer; and e) treating the amalgamation layer to increase the mechanical strength of the layer by a substantial amount and to ultimately form a low dielectric material that can be utilized in various applications.Type: GrantFiled: July 8, 2003Date of Patent: May 10, 2005Assignee: Honeywell International Inc.Inventors: Shyama Mukherjee, Roger Leung, Kreisler Lau
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Patent number: 6855740Abstract: Molded foam bodies made of silicone can be produced in large series by means of known injection molding machines for liquid silicone by virtue of the fact that mixtures of ammonium carbonate, and/or ammonium carbaminate, and/or ammonium hydrogen carbonate, in powdered form, and at least one of the two liquid-paste-like components of liquid silicone are produced and the two liquid silicone components are then processed in the known manner, with the proviso that the mold is not completely filled with the dispersion.Type: GrantFiled: February 26, 2002Date of Patent: February 15, 2005Assignee: Stuemed GmbHInventor: Rolf Siegel
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Publication number: 20040235971Abstract: 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.Type: ApplicationFiled: November 12, 2003Publication date: November 25, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshitaka Hamada, Fujio Yagihashi, Hideo Naskagawa, Masaru Sasago
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Publication number: 20040228787Abstract: A mesoporous material is described. It includes a network of interconnected pores within an L3 phase structure. The pores include pore walls of a silicate material functionalized with at least one metal cation—usually a transition metal. Articles which include the mesoporous material are also disclosed, along with methods for making the mesoporous material.Type: ApplicationFiled: June 15, 2004Publication date: November 18, 2004Applicant: General Electric CompanyInventors: Sergio Paulo Martins Loureiro, Mohan Manoharan
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Patent number: 6818673Abstract: A method of producing silicone foam includes the step of adding a mechanical foaming agent to uncured silicone. The mechanical foaming agent is a plurality of solid bodies insoluble in the silicone. The method also includes the steps of curing the silicone and removing the mechanical foaming agent as intact solid bodies from the silicone thereby providing a silicone foam.Type: GrantFiled: December 9, 2003Date of Patent: November 16, 2004Assignee: Radiant Holdings, LLCInventor: Terrell W. Ferguson
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Patent number: 6818676Abstract: The present invention provides a foam cushion, a method of making the foam cushion, and a method of using the foam cushion. The foam cushion is formed from: (a) at least one of rubber and a resin; (b) a blowing agent; (c) a polymeric adhesion modifier; (d) a decomposition accelerating agent, and (e) a cross-linking agent.Type: GrantFiled: February 1, 2002Date of Patent: November 16, 2004Assignee: Phat Cushion, LLCInventors: Adam J. Koffler, Donald W. Hopwood, Binh Van Hoang
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Publication number: 20040198855Abstract: A polymer having a repeating unit represented by formula (I) is used for an insulating-film forming material and an insulating film.Type: ApplicationFiled: March 23, 2004Publication date: October 7, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Yutaka Adegawa
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Patent number: 6790519Abstract: A method for making modified poly(ethylene oxide) by graft polymerizing thereto organic monomers containing a trialkoxy silane functional group or a moiety that reacts with water to form a silanol group, such as methacryloxypropyl trimethoxy silane, onto the poly(ethylene oxide) is disclosed. The graft polymerization is accomplished by mixing the poly(ethylene oxide), the silane-containing monomer(s) and an initiator and applying heat. Preferably, the method is a reactive-extrusion process. After graft polymerization, the modified poly(ethylene oxide) may be exposed or subjected to relatively high moisture conditions, thereby causing crosslinking and formation of a structure that is capable of absorbing relatively large amounts of saline. The resulting modified poly(ethylene oxide) has improved properties over articles similarly processed from unmodified poly(ethylene oxide).Type: GrantFiled: May 26, 2000Date of Patent: September 14, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Eric D. Johnson, Gregory J. Wideman, James Hongxue Wang
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Publication number: 20040176493Abstract: A foam material is provided that is formed from a body of silicone having a cellular structure formed by a plurality of interconnected voids. The voids have a relatively high volume of between about 0.06545 to about 268.0832 mm3 and more typically about 65.45 to about 179.5948 mm3. The foam material displays unique tactile properties.Type: ApplicationFiled: December 9, 2003Publication date: September 9, 2004Inventor: Terrell W. Ferguson
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Publication number: 20040176488Abstract: In accordance with the present invention, compositions and methods are provided in which the mechanical strength and durability of a precursor material having a plurality of pores is increased by a) providing a precursor material; b) treating the precursor material to form a nanoporous aerogel, preferably by using a supercritical drying process; c) providing a blending material having a reinforcing component and a volatile component; d) combining the nanoporous aerogel and the blending material to form an amalgamation layer; and e) treating the amalgamation layer to increase the mechanical strength of the layer by a substantial amount, and to ultimately form a low dielectric material that can be utilized in various applications.Type: ApplicationFiled: March 13, 2003Publication date: September 9, 2004Inventors: Shyama Mukherjee, Roger Leung, Kreisler Lau
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Patent number: 6780499Abstract: A porous, low-k dielectric film that has good mechanical properties as well as a method of fabricating the film and the use of the film as a dielectric layer between metal wiring features are provided. The porous, low-k dielectric film includes a first phase of monodispersed pores having a diameter of from about 1 to about 10 nm that are substantially uniformly spaced apart and are essentially located on sites of a three-dimensional periodic lattice; and a second phase which is solid surrounding the first phase. Specifically, the second phase of the film includes (i) an ordered element that is composed of nanoparticles having a diameter of from about 1 to about 10 nm that are substantially uniformly spaced apart and are essentially arranged on sites of a three-dimensional periodic lattice, and (ii) a disordered element comprised of a dielectric material having a dielectric constant of about 2.8 or less.Type: GrantFiled: May 3, 2001Date of Patent: August 24, 2004Assignee: International Business Machines CorporationInventors: Stephen McConnell Gates, Christopher B. Murray, Satyanarayana V. Nitta, Sampath Purushothaman
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Publication number: 20040157943Abstract: Molded foam bodies made of silicone can be produced in large series by means of known injection molding machines for liquid silicone by virtue of the fact that mixtures of ammonium carbonate, and/or ammonium carbaminate, and/or ammonium hydrogen carbonate, in powdered form, and at least one of the two liquid-paste-like components of liquid silicone are produced and the two liquid silicone components are then processed in the known manner, with the proviso that the mold is not completely filled with the dispersion.Type: ApplicationFiled: February 13, 2004Publication date: August 12, 2004Inventor: Rolf Siegel
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Patent number: 6767930Abstract: Performance additives in high performance polymers using polyhedral oligomeric silsesquioxanes (POSS) and polyhedral oligomeric silicates (POS) as nanoscopic reinforcements, porosity control agents, thermal and oxidative stability aids to improve the properties of the polymers.Type: GrantFiled: September 9, 2002Date of Patent: July 27, 2004Inventors: Steven A. Svejda, Shawn H. Phillips, Rene I. Gonzalez, Frank J. Feher, Joseph D. Lichtenhan, Joseph J. Schwab, William A. Reinerth
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Publication number: 20040122121Abstract: A mesoporous material is described. It includes a network of interconnected pores within an L3 phase structure. The pores include pore walls of a silicate material functionalized with at least one metal cation—usually a transition metal. Articles which include the mesoporous material are also disclosed, along with methods for making the mesoporous material.Type: ApplicationFiled: December 23, 2002Publication date: June 24, 2004Inventors: Sergio Martins Loureiro, Mohan Manoharan
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Publication number: 20040024076Abstract: Methods are disclosed for using biopolymers as templates for the polymerization of monomeric silicic acids. A method is provided wherein a biological polymer is used as a template. An inorganic polymer backbone forms a shell encasing the biopolymer template. The organic portion may be removed to leave inorganic nanotubes or other micro- or nano-scale structures which are the approximate size and shape of the template. The surface macrostructure of the biological template is duplicated in a silica shell—even molecular level imprinting is possible. The resulting silica structures have many uses, especially where micro- or nano-scale morphology should be controlled. Catalysts, semiconductors or metals may be deposited on the inside surface of the inorganic shell support. In another example, micro- or nano-particles that mimic the size and shape of the biopolymer template may be synthesized.Type: ApplicationFiled: April 15, 2003Publication date: February 5, 2004Inventor: Clyde Edward Davis
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Patent number: 6660780Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: GrantFiled: November 27, 2002Date of Patent: December 9, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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Patent number: 6627669Abstract: In accordance with the present invention, compositions and methods are provided in which the mechanical strength and durability of a precursor material having a plurality of pores is increased by a) providing a precursor material; b) treating the precursor material to form a nanoporous aerogel, preferably by using a supercritical drying process; c) providing a blending material having a reinforcing component and a volatile component; d) combining the nanoporous aerogel and the blending material to form an amalgamation layer; and e) treating the amalgamation layer to increase the mechanical strength of the layer by a substantial amount, and to ultimately form a low dielectric material that can be utilized in various applications.Type: GrantFiled: July 3, 2002Date of Patent: September 30, 2003Assignee: Honeywell International Inc.Inventors: Shyama Mukherjee, Roger Leung, Kreisler Lau
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Patent number: 6586483Abstract: A foam composition that includes a vehicle and surface-modified nanoparticles disposed in the vehicle. The individual nanoparticles having a particle diameter of less than about 100 nanometers.Type: GrantFiled: January 8, 2001Date of Patent: July 1, 2003Assignee: 3M Innovative Properties CompanyInventors: Brant U. Kolb, Jimmie R. Baran, Jr., Michael A. Johnson, Gordon G. Johnson, Megan P. Lehmann, John S. Sokalski
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Patent number: 6583191Abstract: A method of making a molecularly imprinted porous structure makes use of a surfactant analog of the molecule to be imprinted that has the imprint molecule portion serving as the surfactant headgroup. The surfactant analog is allowed to self-assemble in a mixture to create at least one supramolecular structure having exposed imprint groups. The imprinted porous structure is formed by adding reactive monomers to the mixture and allowing the monomers to polymerize, with the supramolecular structure serving as a template. The resulting solid structure has a shape that is complementary to the shape of the supramolecular structure and has cavities that are the mirror image of the imprint group. Similarly, molecularly imprinted particles may be made by using the surfactant to create a water-in-oil microemulsion wherein the imprint groups are exposed to the water phase.Type: GrantFiled: September 19, 2001Date of Patent: June 24, 2003Inventors: Michael A. Markowitz, Paul E. Schoen, Bruce P. Gaber, Banahalli R. Ratna, Paul R. Kust, David C. Turner, Douglas S. Clark, Jonathan S. Dordick
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Patent number: 6576683Abstract: A flexible polyimide foam having an apparent density of 70 kg/m3 or less and a glass transition temperature of 300° C. or higher can be prepared by mixing an aromatic tetracarboxylic acid comprising 2,3,3′,4′-biphenyltetracarboxylic dianhydride a portion of which is converted into its mono- or di-lower primary alcohol ester with an aromatic polyamine containing diaminodisiloxane in an amount of 0.1 to 10 mol. %, based on the amount of total amine compounds, to give a solid of polyimide precursor; and heating the solid of polyimide precursor to a temperature of 300° C. to 500° C.Type: GrantFiled: June 28, 2001Date of Patent: June 10, 2003Assignee: Ube Industries, Ltd.Inventors: Hiroaki Yamaguchi, Shigeru Yamamoto
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Patent number: 6552096Abstract: A silicone rubber is produced by curing a silicone rubber composition which includes (A) a curable organopolysiloxane composition and (B) at least one hollow organic resin filler whereby the filler forms cells in an open-cell state. The open-cell state gives the silicone rubber good cushioning property and a low compression set.Type: GrantFiled: June 29, 2001Date of Patent: April 22, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Noriyuki Meguriya
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Patent number: 6506331Abstract: The primary curing step of molding a heat curable silicone rubber composition loaded with a hollow filler of organic resin under such conditions that the hollow filler is not broken, is followed by the secondary curing step of curing the molded rubber under such conditions that the hollow filler is broken, thereby producing a low specific gravity silicone rubber elastomer having improved heat resistance and minimized changes with time of physical properties, without operational problems.Type: GrantFiled: February 20, 2001Date of Patent: January 14, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Noriyuki Meguriya
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Patent number: 6500874Abstract: A silicone rubber composition comprising (A) an organopolysiloxane, (B) an inorganic filler, typically fumed silica, and (C) a specific halogen-free organic peroxide, typically 1,6-bis(p-toluoylperoxycarbonyloxy)hexane or 1,6-bis(benzoylperoxycarbonyloxy)hexane is safe and lends itself to atmospheric hot air vulcanization so that it can be extrusion vulcanized into silicone rubber having satisfactory physical properties without voids or surface tack. The silicone rubber composition is extrusion molded around an electrical wire, constructing a covered wire.Type: GrantFiled: January 19, 2001Date of Patent: December 31, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Atsushi Yaginuma, Terukazu Satoh