Patents by Inventor Sang-Pil Kim

Sang-Pil Kim 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: 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
  • Patent number: 6822021
    Abstract: A release agent and a release liquid which are used for the manufacture of labels, double-sided tapes, etc., are disclosed. The release agent and the release liquid provide improved adhesion between a substrate and a release layer, and excellent peel strength betwveen the release layer and an adherent. The release agent includes a dispersion of a vinyl-modified colloidal silica, a dispersion of a platinum chelate catalyst, and a polysiloxane water-dispersible silicone emulsion. The release liquid is obtained by dispersing the release agent in water so as to have a solid content of 2.5˜30% by weight. The release film is produced by applying the release liquid on a substrate, followed by drying.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: November 23, 2004
    Assignees: Toray Saehan Incorporation, Haeun Chemtec Co., Ltd.
    Inventors: Sang Pil Kim, Ki Bong Suh, Moon Bok Lee, Jeong Woo Lee, Kwang Choon Chung, Myung Sun Gong, Chang Soo Kim
  • Publication number: 20040185281
    Abstract: The present invention relates to a biaxially stretched, colored polyester film, which can be widely applied in windowpanes of cars and buildings. This colored film comprises a transparent polyester layer A; a colored polyester layer B formed on one surface of the transparent polyester layer A, the colored polyester layer B containing dyes at the amount of 0.01-10% by weight; and a coating layer C rendered adhesive formed on the surface of the colored polyester layer B opposite to the transparent polyester layer A. When the colored film is adhered to the windowpanes of cars and buildings, it exhibits excellent ultraviolet blocking effect and flame retardance while protecting privacy. Also, even when glass is broken by impacts from the outside, the colored film can prevent a broken piece of glass from being scattered. Thus, the colored film is an improved polyester film having high functionality and multi-functionality.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 23, 2004
    Applicant: TORAY SAEHAN INC.
    Inventors: Chang-Ho Suh, Ki-Bong Suh, Sang-Pil Kim
  • Publication number: 20040178139
    Abstract: The present invention relates to a biaxially stretched, laminated, white microporous polyester film, which can be used in a wide range of industrial applications including printing, imaging, advertising and display. The film of the present invention comprises a porous polyester resin layer B containing a thermoplastic resin non-compatible with polyester; a polyester resin-based photic layer A formed on one surface of the resin layer B, the aphotic layer A having a 60-degree gloss of the surface thereof of more than 100%; and an aphotic layer C formed on the other surface of the resin layer B, the aphotic layer C having a 60-degree gloss of the surface thereof of less than 50%. The total density of the photic layer A and the aphotic layer C is 0.55-1.2 g/cm3. This film has excellent gloss and flexibility so that it is very suitable for use in printing and imaging.
    Type: Application
    Filed: April 11, 2003
    Publication date: September 16, 2004
    Applicant: TORAY SAEHAN INC.
    Inventors: Chang-Ho Suh, Ki-Bong Suh, Sang-Pil Kim
  • Publication number: 20040175560
    Abstract: Disclosed is a biaxially stretched polyester film which can be used in a wide range of industrial applications such as printing, imaging, advertising and display. The polyester film has a three-layered structure (A/B/C) comprising: (A) a photic layer of a polyester resin having a 60 degree gloss of 100% or more; (B) a layer containing 3 to 30% by weight of a thermoplastic resin incompatible with the polyester resin, 30% by weight of inorganic particles and 0.5% by weight of a fluorescent whitening agent; and (C) an aphotic layer of a polyester resin having a 60 degree gloss of 50% or less, and a coating layer applied on at least one surface of the film.
    Type: Application
    Filed: January 30, 2003
    Publication date: September 9, 2004
    Inventors: Chang-Ho Suh, Ki-Bong Suh, Sang-Pil Kim
  • Publication number: 20040151877
    Abstract: Disclosed is a biaxially stretched functional white polyester film, in which specific inorganic particles are added to provide different surface characteristics at the front and back surfaces thereof so that it can be used in a wide range of industrial applications such as printing, imaging, advertising and display, and a flame retardant and/or a ultraviolet stabilizer are also added to provide multi-functional properties.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 5, 2004
    Inventors: Chang-Ho Suh, Ki-Bong Suh, Sang-Pil Kim
  • Patent number: 6737119
    Abstract: A method for producing a release film which is used for the manufacture of adhesive labels, double-sided tapes, etc., is disclosed. The release film provides improved adhesion between a substrate and a release layer, and excellent peel strength between the release layer and an adherent. The method includes the steps of : obtaining a silicone aqueous emulsion release liquid by dispersing a silicone aqueous release agent including a dispersion of a vinyl-modified colloidal silica, a dispersion of a platinum chelate catalyst and a polysiloxane water-dispersible silicone emulsion, in water, so as to achieve a solid content of the release liquid of 2.5˜30% by weight; and applying and drying the obtained release liquid on a substrate to form a release layer.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: May 18, 2004
    Assignees: Toray Saehan Incorporation, Haeun Chemtec Co., Ltd.
    Inventors: Sang Pil Kim, Ki Bong Suh, Moon Bok Lee, Jeong Woo Lee, Kwang Choon Chung, Myung Sun Gong, Chang Soo Kim