Patents by Inventor Jai-Won Park
Jai-Won Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8119716Abstract: The invention discloses a method of incorporating deagglomerated barium sulphate having an average primary particle size of less than 0.5 ?m and coated with a dispersant into plastics or precursors of plastics, for example into polyols. The deagglomerated barium sulphate is dispersed in an organic solvent, the dispersion is incorporated into the plastic or the precursor of the plastic, and the solvent is evaporated off.Type: GrantFiled: June 2, 2006Date of Patent: February 21, 2012Assignee: Solvay Infra Bad Hoenningen GmbHInventors: Ferdinand Hardinghaus, David-Christopher Glende, Jai-Won Park, Karl Kohler
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Publication number: 20100197838Abstract: The invention discloses polymeric esters of terephthalic acid with deagglomerated barium sulphate having an average primary particle size of less than 0.5 ?m, containing a crystallization inhibitor and being coated with a dispersant, as filler. The dispersant has preferably reactive groups which are able to interact with the surface of the barium sulphate; particular preference is given to dispersants which are able to endow the barium sulphate with a hydrophilic surface and have reactive groups for coupling to or into polymers. Also disclosed is a corresponding precursor based on macrocyclic oligoesters which comprise such barium sulphate.Type: ApplicationFiled: June 2, 2006Publication date: August 5, 2010Applicant: SOLVAY INFRA BAD HOENNINGENInventors: Karl Koehler, Ferdinand Hardinghaus, Jai-Won Park, David-Christopher Glende, Klaus Nietzel
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Publication number: 20090048380Abstract: Particles, especially nanoparticles, being coated with copolymers (A) of olefinically unsaturated monomers (a), preparable by single-stage or multistage controlled free-radical copolymerization in an aqueous medium of (a1) at least one olefinically unsaturated monomer containing at least one chelate-forming group and (a2) at least one olefinically unsaturated monomer different from olefinically unsaturated monomer (a1) and selected from the group consisting of (a21) monomers of the general formula (I): R1R2C?CR3R4, in which the radicals R1, R2, R3, and R4 each independently are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R1, R2, R3 and R4 are substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals, (a22) olefinically unsaturated terpene hydrocarbons, and (a23)Type: ApplicationFiled: March 22, 2007Publication date: February 19, 2009Applicant: SOLVAY INFRA BAD HOENNINGEN GMBHInventors: David-Christopher Glende, Ferdinand Hardinghaus, Jai-Won Park, Karl Kohler
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Publication number: 20090020042Abstract: The present invention relates to the use of nanoparticles for the preparation of water-based dispersion adhesives, and especially the use of finely divided barium sulfate therein. The nanoparticles can be used with or without chemical modification. Adhesives of this kind feature improved properties, examples being improved cohesion in conjunction with comparable adhesion and higher heat resistance. Preference is given to dispersion adhesives based on polyacrylate, polyurethane, and epoxy resin.Type: ApplicationFiled: February 5, 2007Publication date: January 22, 2009Applicant: Solvay Infra Bad Hoenningen GmbHInventors: David-Christopher Glende, Karl Kohler, Jai-Won Park, Ferdinand Hardinghaus
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Publication number: 20080312362Abstract: The invention discloses a method of incorporating deagglomerated barium sulphate having an average primary particle size of less than 0.5 ?m and coated with a dispersant into plastics or precursors of plastics, for example into polyols. The deagglomerated barium sulphate is dispersed in an organic solvent, the dispersion is incorporated into the plastic or the precursor of the plastic, and the solvent is evaporated off.Type: ApplicationFiled: June 2, 2006Publication date: December 18, 2008Applicant: SOLVAY INFRA BAD HOENNINGEN GMBHInventors: David-Christopher Glende, Ferdinand Hardinghaus, Jai-Won Park, Karl Kohler
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Publication number: 20080227901Abstract: Use of nanoparticles of barium sulfate or of calcium carbonate, with a particle size of less than or equal to 150 nm and greater than or equal to 0.5 nm, as filler in transparent polymer compositions. The compositions obtained simultaneously show good scratch resistance, good impact strength, good tensile strength, good heat stability and good visible and UV radiation stability, while at the same time conserving excellent transparency. The compositions may be used as replacement materials for glass in the motor vehicle sector and in the optics sector.Type: ApplicationFiled: October 4, 2006Publication date: September 18, 2008Applicant: Solvay SAInventors: Benoit Lefevre, Marc Lacroix, Karine Cavalier, Gaelle Rodary, Julien Pineau, Christian Jourquin, Ferdinand Hardinghaus, Jai-Won Park, Karl Kohler, Jean-Raphael Caille, Ardechir Momtaz
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Publication number: 20080190325Abstract: The invention discloses nanoparticles which have preferably a particle size of less than 100 nm, have been coated with a dispersant, and optionally further comprise a crystallization inhibitor. Preferred dispersants are those which endow the nanoparticles with a hydrophilic or hydrophobic surface and contain reactive groups for coupling to or into polymers. Also disclosed are plastics comprising nanoparticles of this kind.Type: ApplicationFiled: June 2, 2006Publication date: August 14, 2008Applicant: SOLVAY INFRA BAD HOENINGEN GMBHInventors: Karl Kohler, Ferdinand Hardinghaus, Jai-Won Park, Ulrich Seseke-Koyro
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Publication number: 20070232725Abstract: Epoxy resins comprising deagglomerated barium sulphate with an average particle size of less than 0.5 ?m feature increased flexural impact strength and breaking extension. Epoxy resins of this kind can be used as, for example, composite material or binders in watercraft construction, in wind turbines, in pipes, for containers or in aircraft construction, in particular in composite materials comprising glass fibre or carbon fibre.Type: ApplicationFiled: December 1, 2004Publication date: October 4, 2007Applicant: SOLVAY INFRA BAD HOENNINGEN GMBHInventors: Rainer Stahl, Jai-Won Park, Ferdinand Hardinghaus, David-Christopher Glende, Karl Kohler
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Publication number: 20070167535Abstract: Curable compositions comprising deagglomerated barium sulfate containing at least one dispersant and at least one crystallization inhibitor and having a primary particle size <0.5 ?m, preferably <0.1 ?m, in particular <30 nm, and their use.Type: ApplicationFiled: November 11, 2004Publication date: July 19, 2007Applicant: BASF COATINGS AGInventors: Andreas Poppe, Dunja Mikolajetz, Elke Westhoff, Ferdinand Hardinghaus, Jai-Won Park, Karl Kohler, Rainer Stahl, David Glende
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Publication number: 20070140938Abstract: The invention discloses deagglomerated barium sulphate which has an average primary particle size of less than 0.5 ?m and is coated with a dispersant. The dispersant has preferably reactive groups which are able to interact with the surface of the barium sulphate; particularly preferred dispersants are those which are able to endow the barium sulphate with a hydrophilic surface and have reactive groups for coupling to or into polymers. Also disclosed is a plastics premix comprising the deagglomerated, coated barium sulphate.Type: ApplicationFiled: December 1, 2004Publication date: June 21, 2007Applicant: SOLVAY INFRA BAD HOENNINGENInventors: Rainer Stahl, Ferdinand Hardinghaus, Jai-Won Park, David-Christopher Glende, Karl Kohler, Andreas Poppe
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Patent number: 7108586Abstract: Particles of strontium carbonate, barium carbonate, strontium sulfate and/or barium sulfate having a sufficient degree of fineness, especially when produced synthetically, are suitable as abrasive agents in chemical mechanical polishing (CMP polishing) of components, e.g., microelectronic components such as silicon wafers. The alkaline earth metal salt compounds are used as slurries in water and/or organic liquids and optionally may contain a dispersing agent, and preferably have a pH value of at least 8.Type: GrantFiled: June 18, 2004Date of Patent: September 19, 2006Assignee: Solvay Barium Strontium GmbHInventors: Karl Koehler, Ferdinand Hardinghaus, Jai-Won Park
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Patent number: 7001582Abstract: Micronized barium sulfate (BaSO4) and methods for the production and use thereof. The micronized barium sulfate of the invention is particularly suitable for use as an additive or filler for adhesives, colorants, rubber articles and/or cosmetics.Type: GrantFiled: April 14, 2004Date of Patent: February 21, 2006Assignee: Solvay Barium Strontium GmbHInventors: Ferdinand Hardinghaus, Tanja Engels, Jai-Won Park, Karl Koehler, Hans Gabel, Joerg Glas
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Publication number: 20050048877Abstract: Particles of strontium carbonate, barium carbonate, strontium sulfate and/or barium sulfate having a sufficient degree of fineness, especially when produced synthetically, are suitable as abrasive agents in chemical mechanical polishing (CMP polishing) of components, e.g., microelectronic components such as silicon wafers. The alkaline earth metal salt compounds are used as slurries in water and/or organic liquids and optionally may contain a dispersing agent, and preferably have a pH value of at least 8.Type: ApplicationFiled: June 18, 2004Publication date: March 3, 2005Applicant: Solvay Barium Strontium GmbHInventors: Karl Koehler, Ferdinand Hardinghaus, Jai-Won Park
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Patent number: 6812191Abstract: Superconductive bodies composed of cuprate material having a very critical current density with outer magnetic fields of up to 5 tesla when the bodies have a content of zinc cations. The bodies can also be subjected to modified oxygen treatment. The preferred cuprate materials are YBCO material and bismuth oxide based on superconductive material such as “2212” or “2223” type superconductive material. The preferred bodies are molded bodies obtained by melt texturing and “powder-in-tube” bodies.Type: GrantFiled: August 17, 2001Date of Patent: November 2, 2004Assignee: Solvay Barium Strontium GmbHInventors: Jai Won Park, Karl Koehler, Ferdinand Hardinghaus, Hans Gabel, Gernot Krabbes, Peter Schaetzle, Gudrun Stoever
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Publication number: 20040197262Abstract: Micronized barium sulfate (BaSO4) and methods for the production and use thereof. The micronized barium sulfate of the invention is particularly suitable for use as an additive or filler for adhesives, colorants, rubber articles and/or cosmetics.Type: ApplicationFiled: April 14, 2004Publication date: October 7, 2004Applicant: Solvay Barium Strotium GmbHInventors: Ferdinand Hardinghaus, Tanja Engels, Jai-Won Park, Karl Koehler, Hans Gabel, Joerg Glas
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Publication number: 20030124048Abstract: Micronized barium sulfate (BaSO4) and methods for the production and use thereof. The micronized barium sulfate of the invention is particularly suitable for use as an additive or filler for adhesives, colorants, rubber articles and/or cosmetics.Type: ApplicationFiled: November 27, 2002Publication date: July 3, 2003Applicant: Solvay Barium Strontium GmbHInventors: Ferdinand Hardinghaus, Tanja Engels, Jai-Won Park, Karl Koehler, Hans Gabel, Joerg Glas
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Publication number: 20020173427Abstract: Superconductive bodies composed of cuprate material having a very critical current density with outer magnetic fields of up to 5 tesla when the bodies have a content of zinc cations. The bodies can also be subjected to modified oxygen treatment. The preferred cuprate materials are YBCO material and bismuth oxide based on superconductive material such as “2212” or “2223” type superconductive material. The preferred bodies are molded bodies obtained by melt texturing and “powder-in-tube” bodies.Type: ApplicationFiled: August 17, 2001Publication date: November 21, 2002Inventors: Jai Won Park, Karl Koehler, Ferdinand Hardinghaus, Hans Gabel, Gernot Krabbes, Peter Schaetzle, Gudrun Stoever
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Patent number: 6479029Abstract: The invention concerns a micronized alkaline earth metal carbonate prepared with or without the use of an agent preventing crystal growth, and a process for its preparation and use. The prepared micronized calcium carbonate, barium carbonate with a BET surface area ranging from 3 to 30 m2/g or strontium carbonate with a BET surface area ranging from 3 to 50 m2/g is suitable in particular for preparing capacitors, thermistors and other oxide ceramic electrical components containing calcium oxide, barium oxide or strontium oxide, and high-temperature superconductors. Ammonium salts or alkylammonium salts of carboxylic acids having a total of between 3 and 12 carbon atoms and at least two COOH groups or at least two OH groups, e.g. salts of maleic acid or nitric acid, are used as agents preventing crystal growth.Type: GrantFiled: June 3, 1998Date of Patent: November 12, 2002Assignee: Solvay Barium Strontium GmbHInventors: Norbert Mingels, Karl Koehler, Jai Won Park, Hans Gabel
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Patent number: 6063735Abstract: A mixture suitable for the production of melt-processed high-temperature superconductors capable of producing a high levitation force. The mixture contains YBa.sub.2 Cu.sub.3 O.sub.7-x powder with a very low content of copper oxide, i.e. copper not bound in with the YBa.sub.2 Cu.sub.3 O.sub.7-x, and a very low carbon content. Also included are stabilizing (so-called "flux-pinning") additives. Also disclosed is a method or producing the mixture, as well as YBa.sub.2 Cu.sub.3 O.sub.7-x powder with suitable low free copper oxide and carbon contents, used to prepare the mixture.Type: GrantFiled: June 3, 1998Date of Patent: May 16, 2000Assignees: Solvay Barium Strontium GmbH, Institut fuer Physikalische Hochtechnologie e.V.Inventors: Jai Won Park, Karl Koehler, Ferdinand Hardinghaus, Paul Jaeger, Klaus Fischer, Tobias Habisreuther, Wolfgang Gawalek, Doris Litzkendorf, Peter Goernert, Minzi Wu