Patents by Inventor Shi-Ho Lee

Shi-Ho Lee 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).

  • Publication number: 20120238682
    Abstract: The present invention relates to a clay-reinforced poly(lactic acid)-polyolefin alloy composition comprising 5-50 wt % of a clay-reinforced poly(lactic acid) resin, 40-90 wt % of a polyolefin, and 5-20 wt % of a compatibiliser. A clay-poly(lactic acid) nanocomposite according to the present invention is used with a polyolefin resin to enable the easy distribution of the clay-poly(lactic acid) nanocomposite into microstructure in the polyolefin resin, thereby showing excellent gas and moisture barrier characteristics, so that the composition is suitable for a molded product requiring barrier properties such as a sheet and a film for food packaging, a fuel tank and a portable fuel tank.
    Type: Application
    Filed: October 21, 2010
    Publication date: September 20, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Young Chul Yang, Shi-Ho Lee, Min Ki Kim, Jae Yong Shin, Yang Suk Choi
  • Patent number: 7368496
    Abstract: A nanocomposite composition having superior barrier properties and an article comprising the same are provided. The nanocomposite composition includes: a polyolefin resin; a nanocomposite having barrier properties, and including intercalated clay and one or more resins having barrier properties, and a compatibilizer. The resin having barrier properties comprises an ethylene-vinyl alcohol copolymer, a polyamide, an ionomer, a polyvinyl alcohol, or a combination comprising one or more of the foregoing resins. The nanocomposite composition has superior mechanical strength and can form a strong barrier to oxygen, organic solvent, and moisture. Also, the nanocomposite composition has superior chemical barrier properties and can be used in single/multi-layer blow molding and film processing.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: May 6, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Myung-Ho Kim, Shi-Ho Lee, Young-Chul Yang, Ku-Min Yang
  • Patent number: 7138452
    Abstract: The present invention relates to a nanocomposite blend composition having superior barrier properties, and more particularly to a nanocomposite blend composition comprising a polyolefin resin; one or more nanocomposites having barrier properties, selected from an ethylene-vinyl alcohol (EVOH)/intercalated clay nanocomposite, a polyamide/intercalated clay nanocomposite, an ionomer/intercalated clay nanocomposite, and a polyvinyl alcohol (PVA)/intercalated clay nanocomposite; and a compatibilizer. This nanocomposite blend composition has superior mechanical strength and superior barrier properties to oxygen, organic solvent, and moisture. Also, it has superior chemical barrier properties and is applicable to single/multi-layer blow molding and film processing.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: November 21, 2006
    Assignee: LG Chem, Ltd.
    Inventors: Myung-Ho Kim, Shi-Ho Lee, Young-Chul Yang, Ku-Min Yang
  • Publication number: 20050215694
    Abstract: A nanocomposite composition having superior barrier properties and an article comprising the same are provided. The nanocomposite composition includes: a polyolefin resin; a nanocomposite having barrier properties, and including intercalated clay and one or more resins having barrier properties, and a compatibilizer. The resin having barrier properties comprises an ethylene-vinyl alcohol copolymer, a polyamide, an ionomer, a polyvinyl alcohol, or a combination comprising one or more of the foregoing resins. The nanocomposite composition has superior mechanical strength and can form a strong barrier to oxygen, organic solvent, and moisture. Also, the nanocomposite composition has superior chemical barrier properties and can be used in single/multi-layer blow molding and film processing.
    Type: Application
    Filed: March 15, 2005
    Publication date: September 29, 2005
    Inventors: Myung-Ho Kim, Shi-Ho Lee, Young-Chul Yang, Ku-Min Yang
  • Publication number: 20040106719
    Abstract: The present invention relates to a nanocomposite blend composition having superior barrier properties, and more particularly to a nanocomposite blend composition comprising a polyolefin resin; one or more nanocomposites having barrier properties, selected from an ethylene-vinyl alcohol (EVOH)/intercalated clay nanocomposite, a polyamide/intercalated clay nanocomposite, an ionomer/intercalated clay nanocomposite, and a polyvinyl alcohol (PVA)/intercalated clay nanocomposite; and a compatibilizer. This nanocomposite blend composition has superior mechanical strength and superior barrier properties to oxygen, organic solvent, and moisture. Also, it has superior chemical barrier properties and is applicable to single/multi-layer blow molding and film processing.
    Type: Application
    Filed: August 27, 2003
    Publication date: June 3, 2004
    Inventors: Myung-Ho Kim, Shi-Ho Lee, Young-Chul Yang, Ku-Min Yang