Patents by Inventor Yang Hwan Cho

Yang Hwan Cho 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: 8481611
    Abstract: The present invention relates to an artificial marble comprising a base resin; and layer-separated chips containing a matrix resin and additives, all or part of said additives is present in a state forming layered-phase in said matrix resin through phase-separation by a difference of specific gravity between said additives and said matrix resin, and a method for preparing the same. In the present invention, phase-separation (layer separation) of the additives in the chip is induced by adding the additives having specific gravity different from the matrix resin constituting base of the chip to the matrix resin, and if necessary, a position of the chip in the artificial marble is controlled through high specific gravity treatment. Therefore, the present invention may provide an artificial marble having a texture close to a natural rock by embodying various effects such as pearl effect, metallic effect and 3-dimensional effect.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: July 9, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Jae Ho Oh, Yang Hwan Cho
  • Publication number: 20100209695
    Abstract: Disclosed herein are high specific gravity light reflecting chips capable of exhibiting a depth feeling and glittering, and a method for producing the chips and an artificial marble comprising the chips. The high specific gravity light reflecting chips for an artificial marble consists of a high specific gravity layer, a low specific gravity layer, and a light reflecting layer comprising a light reflective material laminated in this order from the top. Disclosed also are an artificial marble comprising light reflecting transparent chips composed of transparent materials and light reflective materials, and a method producing the artificial marble. The artificial marble comprises light reflecting transparent chips consisting of a transparent layer to be exposed to the outside from the surface of the artificial marble, and a light reflecting layer laminated under thereof.
    Type: Application
    Filed: December 14, 2006
    Publication date: August 19, 2010
    Applicant: LG Chem ,Ltd.,
    Inventor: Yang-Hwan Cho
  • Publication number: 20100113645
    Abstract: The present invention relates to an artificial marble comprising a base resin; and layer-separated chips containing a matrix resin and additives, all or part of said additives is present in a state forming layered-phase in said matrix resin through phase-separation by a difference of specific gravity between said additives and said matrix resin, and a method for preparing the same. In the present invention, phase-separation (layer separation) of the additives in the chip is induced by adding the additives having specific gravity different from the matrix resin constituting base of the chip to the matrix resin, and if necessary, a position of the chip in the artificial marble is controlled through high specific gravity treatment. Therefore, the present invention may provide an artificial marble having a texture close to a natural rock by embodying various effects such as pearl effect, metallic effect and 3-dimensional effect.
    Type: Application
    Filed: December 29, 2007
    Publication date: May 6, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Jae Ho Oh, Yang Hwan Cho