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).

  • Patent number: 8069559
    Abstract: 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: Grant
    Filed: August 21, 2008
    Date of Patent: December 6, 2011
    Assignee: World Properties, Inc.
    Inventor: Seung B. Chun
  • Patent number: 7906573
    Abstract: 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: Grant
    Filed: March 5, 2010
    Date of Patent: March 15, 2011
    Assignees: University of Connecticut, University of Massachusetts
    Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
  • Publication number: 20100160522
    Abstract: 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: Application
    Filed: March 5, 2010
    Publication date: June 24, 2010
    Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
  • Patent number: 7705098
    Abstract: 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: Grant
    Filed: June 9, 2009
    Date of Patent: April 27, 2010
    Assignee: University of Connecticut
    Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
  • Publication number: 20090275704
    Abstract: 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: Application
    Filed: June 9, 2009
    Publication date: November 5, 2009
    Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
  • Patent number: 7563848
    Abstract: 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: Grant
    Filed: January 9, 2007
    Date of Patent: July 21, 2009
    Assignees: University of Connecticut, University of Massachusetts
    Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
  • Publication number: 20090050355
    Abstract: 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: Application
    Filed: August 21, 2008
    Publication date: February 26, 2009
    Applicant: WORLD PROPERTIES, INC.
    Inventor: Seung B. Chun
  • Patent number: 7173096
    Abstract: 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: Grant
    Filed: October 10, 2003
    Date of Patent: February 6, 2007
    Assignee: University of Connecticut
    Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin
  • Patent number: 7138203
    Abstract: 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: Grant
    Filed: August 7, 2003
    Date of Patent: November 21, 2006
    Assignee: World Properties, Inc.
    Inventors: Dirk M. Baars, Hillary P. Borges, Seung B. Chun
  • Publication number: 20040132857
    Abstract: 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: Application
    Filed: November 25, 2003
    Publication date: July 8, 2004
    Inventors: Carlos L. Barton, Seung B. Chun
  • Publication number: 20040122184
    Abstract: 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: Application
    Filed: October 10, 2003
    Publication date: June 24, 2004
    Inventors: Patrick T. Mather, Changdeng Liu, Seung B. Chun, E. Bryan Coughlin