Patents by Inventor Jae-Suk Joo

Jae-Suk Joo 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).

  • Biaxially oriented, white flame-retardant polyester film
    Patent number: 7144973
    Abstract: The biaxially oriented, white polyester film of the present invention having improved flame-retardancy, covering ability, flexibility and heat-resistance comprises a polyester resin having an intrinsic viscosity of 0.4 to 0.9 dl/g, a flame-retardant which is alkylene bistetrabromophthalimide or decabromodiphenylalkane, and a fluorescent whitening agent, said polyester film being biaxially drawn at a total draw ratio of 9 or more.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: December 5, 2006
    Assignee: SKC Limited
    Inventors: Jae-Suk Joo, Gwan-Hyung Lee, Yong-Won Kim
  • Mono or biaxially oriented, flame-retardant polyester film
    Publication number: 20050107508
    Abstract: The mono or biaxially oriented polyester film of the present invention having improved flame-retardancy and processibility comprises a polyester resin having an intrinsic viscosity of 0.4 to 0.9 dl/g which contains, in its polyester chain derived from dicarboxylic acid and diol components, an incorporated repeat unit of formula (I) in an amount of 10 to 30 mol % based on the amount of dicarboxylic acid, and a flame-retardancy enhancing agent in an amount ranging from 0.05 to 5% by weight based on the weight of the polyester resin.
    Type: Application
    Filed: October 19, 2004
    Publication date: May 19, 2005
    Inventors: Jae-Suk Joo, Gwan-Hyung Lee, Yong-Won Kim
  • Biaxially oriented, white flame-retardant polyester film
    Publication number: 20050085572
    Abstract: The biaxially oriented, white polyester film of the present invention having improved flame-retardancy, covering ability, flexibility and heat-resistance comprises a polyester resin having an intrinsic viscosity of 0.4 to 0.9 dl/g, a flame-retardant which is alkylene bistetrabromophthalimide or decabromodiphenylalkane, and a fluorescent whitening agent, said polyester film being biaxially drawn at a total draw ratio of 9 or more.
    Type: Application
    Filed: October 19, 2004
    Publication date: April 21, 2005
    Inventors: Jae-Suk Joo, Gwan-Hyung Lee, Yong-Won Kim