Patents by Inventor Sang-Duk Oh

Sang-Duk Oh 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: 7128863
    Abstract: Disclosed herein is a heat-shrinkable co-polyester film having terephthalic acid and ethylene glycol as main components and containing 1,4-cyclohexanedimethanol at the amount of 3–40 mol %. The heat-shrinkable co-polyester film has a crystallization temperature of 80–220° C., a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water, and a maximum shrinkage stress lower than 3 kg/mm2. The film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, the film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, the film can be used for multi-package.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: October 31, 2006
    Assignee: Toray Saehan Inc.
    Inventors: Sang-Pil Kim, Byung-Sik Park, Gi-Jeong Moon, Sang-Duk Oh, Jung-Won Kim
  • Patent number: 7074467
    Abstract: Disclosed herein is a heat-shrinkable co-polyester film containing terephthalic acid or dimethyl terephthalate as a dicarbonic acid component, and ethylene glycol, neopentyl glycol and propylene glycol as diol components, in which the co-polyester film has a crystallization temperature of 80–220° C., and a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water. This film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, this film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, this film can be used for multi-package.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: July 11, 2006
    Assignee: Toray Saehan Inc.
    Inventors: Sang-pil Kim, Byung-sik Park, Gi-Jeong Moon, Sang-Duk Oh, Jung-Won Kim
  • Publication number: 20050048301
    Abstract: Disclosed herein is a heat-shrinkable co-polyester film containing terephthalic acid or dimethyl terephthalate as a dicarbonic acid component, and ethylene glycol, neopentyl glycol and propylene glycol as diol components, in which the co-polyester film has a crystallization temperature of 80-220° C., and a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water. This film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, this film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, this film can be used for multi-package.
    Type: Application
    Filed: June 24, 2004
    Publication date: March 3, 2005
    Inventors: Sang-pil Kim, Byung-sik Park, Gi-Jeong Moon, Sang-Duk Oh, Jung-Won Kim
  • Publication number: 20050010018
    Abstract: Disclosed herein is a heat-shrinkable co-polyester film having terephthalic acid and ethylene glycol as main components and containing 1,4-cyclohexanedimethanol at the amount of 3-40 mol %. The heat-shrinkable co-polyester film has a crystallization temperature of 80-220° C., a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water, and a maximum shrinkage stress lower than 3 kg/mm2. The film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, the film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, the film can be used for multi-package.
    Type: Application
    Filed: June 23, 2004
    Publication date: January 13, 2005
    Inventors: Sang-Pil Kim, Byung-Sik Park, Gi-Jeong Moon, Sang-Duk Oh, Jung-Won Kim