Patents by Inventor Seung B. Chun
Seung B. Chun 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: 8069559Abstract: An insulated metal substrate laminate includes a metal substrate, a dielectric layer disposed upon the metal substrate, wherein the dielectric layer comprises a thermoplastic film having a thickness of less than or equal to 10 micrometers, a thermal resistance of less than or equal to 0.050 Kelvin-square inches per watt, and a breakdown voltage greater than or equal to 1000 volts (alternating current), and an electrically conductive layer disposed upon the dielectric layer.Type: GrantFiled: August 21, 2008Date of Patent: December 6, 2011Assignee: World Properties, Inc.Inventor: Seung B. Chun
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Patent number: 7906573Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties is prepared by ring-opening metathesis polymerization of cis-cyclooctene followed by chemical crosslinking. The crosslinked polycyclooctene can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.Type: GrantFiled: March 5, 2010Date of Patent: March 15, 2011Assignees: University of Connecticut, University of MassachusettsInventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
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Publication number: 20100160522Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties is prepared by ring-opening metathesis polymerization of cis-cyclooctene followed by chemical crosslinking. The crosslinked polycyclooctene can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.Type: ApplicationFiled: March 5, 2010Publication date: June 24, 2010Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
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Patent number: 7705098Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties is prepared by ring-opening metathesis polymerization of cis-cyclooctene followed by chemical crosslinking. The crosslinked polycyclooctene can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.Type: GrantFiled: June 9, 2009Date of Patent: April 27, 2010Assignee: University of ConnecticutInventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
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Publication number: 20090275704Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties is prepared by ring-opening metathesis polymerization of cis-cyclooctene followed by chemical crosslinking. The crosslinked polycyclooctene can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.Type: ApplicationFiled: June 9, 2009Publication date: November 5, 2009Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
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Patent number: 7563848Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties and a method for its synthesis via ring-opening metathesis polymerization of cyclooctene using the dihydroimidazolylidene-modified Grubbs catalyst are disclosed. The polycyclooctene products, following curing with dicumyl peroxide can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.Type: GrantFiled: January 9, 2007Date of Patent: July 21, 2009Assignees: University of Connecticut, University of MassachusettsInventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
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Publication number: 20090050355Abstract: An insulated metal substrate laminate includes a metal substrate, a dielectric layer disposed upon the metal substrate, wherein the dielectric layer comprises a thermoplastic film having a thickness of less than or equal to 10 micrometers, a thermal resistance of less than or equal to 0.050 Kelvin-square inches per watt, and a breakdown voltage greater than or equal to 1000 volts (alternating current), and an electrically conductive layer disposed upon the dielectric layer.Type: ApplicationFiled: August 21, 2008Publication date: February 26, 2009Applicant: WORLD PROPERTIES, INC.Inventor: Seung B. Chun
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Patent number: 7173096Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties and a method for its synthesis via ring-opening methathesis polymerization of cyclooctene using the dihydroimidazolylidene-modified Grubbs catalyst are disclosed. The polycyclooctene products, following curing with dicumyl peroxide can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.Type: GrantFiled: October 10, 2003Date of Patent: February 6, 2007Assignee: University of ConnecticutInventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
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Patent number: 7138203Abstract: A component for an electrochemical cell comprises a thermally and electrically conductive core, wherein the conductive core comprises apertures, and wherein the conductive core further comprises an active area substantially covered by an electrically and thermally conductive polymeric composite. The conductive polymeric composite is adhered to the core by an adhesion promoter comprising electrically conductive particles to reduce the volume resistivity of the component, and an optional adhesive composition. Components may be manufactured having a volume resistivity of about 0.500 ohm-cm or less and a thermal conductivity of at least about 5 watts/meter ° K. In addition, the component is economical to produce due to inexpensive starting materials as well as the use of conventional processing equipment.Type: GrantFiled: August 7, 2003Date of Patent: November 21, 2006Assignee: World Properties, Inc.Inventors: Dirk M. Baars, Hillary P. Borges, Seung B. Chun
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Publication number: 20040132857Abstract: A curable covercoat composition comprises an esterified styrene maleic anhydride oligomer, wherein the ester groups comprise an acrylate group, a methacrylate group, or both, a photoinitiator composition, and a curing agent. The curable covercoat composition may comprise a two-part composition, in which the two parts are mixed prior to use. The two parts may be stored separately to ensure that the product has a long shelf life. Furthermore, the two parts may be mixed in different ratios to obtain a cured covercoat that can be used in printed circuit boards in a wide variety of commercial applications, where reduced shrinkage, increased flexibility, and long life are desired.Type: ApplicationFiled: November 25, 2003Publication date: July 8, 2004Inventors: Carlos L. Barton, Seung B. Chun
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Publication number: 20040122184Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties and a method for its synthesis via ring-opening methathesis polymerization of cyclooctene using the dihydroimidazolylidene-modified Grubbs catalyst are disclosed. The polycyclooctene products, following curing with dicumyl peroxide can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.Type: ApplicationFiled: October 10, 2003Publication date: June 24, 2004Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin