Patents by Inventor Kyool Seop Lee

Kyool Seop 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).

  • Process of making poly(trimethylene terephthalate) bulked continuous filament carpet yarn
    Patent number: 7029611
    Abstract: This invention relates to a poly(trimethylene terephthalate) BCF carpet yarn having a Y-shaped cross-section that has an modification ratio and a arm angle within a specific range, and a method for preparing it. The BCF carpet yarn has excellent bulk property and spinning efficiency, and a carpet made from it has good appearance, sense of touch, and tufting efficiency.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: April 18, 2006
    Assignee: Hyosung Corporation
    Inventors: Kyool Seop Lee, Young Chan Choi, Jong Bok Lee
  • Method for preparing poly (trimethylene terephthalate) carpet
    Publication number: 20040161582
    Abstract: Disclosed is a method for preparing a poly(trimethylene terephthalate) carpet, in which the poly(trimethylene terephthalate) carpet is prepared from poly(trimethylene terephthalate) yarns through the post-processes comprising cabling, heat setting, tufting, dyeing, becking, and shearing. The poly(trimethylene terephthalate) yarns have advantages of improved quality, functionality, and workability by optimizing operating conditions of the steps.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 19, 2004
    Applicant: Hyosung Corporation, a Korea corporation
    Inventors: Kyool Seop Lee, Young Chan Choi, Jong Bok Lee
  • Poly(trimethylene terephthalate) BCF carpet yarn with noncircular cross section and method for preparing the same
    Patent number: 6627310
    Abstract: Disclosed is a poly(trimethylene terephthalate) BCF carpet modified cross-section yarn having an modification ratio and a arm angle within a specific range and a Y-shaped cross-section, and a method for preparing it. The BCF modified cross-section yarn has excellent bulk property and spinning efficiency, and a carpet made from the BCF modified cross-section yarn has good appearance, sense of touch, and tufting efficiency.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: September 30, 2003
    Assignee: Hyosung Corporation
    Inventors: Kyool Seop Lee, Young Chan Choi, Jong Bok Lee
  • Poly (trimethylene terephthalate) BCF carpet yarn with noncircular cross section and method for preparing the same
    Publication number: 20030127766
    Abstract: Disclosed is a poly(trimethylene terephthalate) BCF carpet modified cross-section yarn having an modification ratio and a arm angle within a specific range and a Y-shaped cross-section, and a method for preparing it. The BCF modified cross-section yarn has excellent bulk property and spinning efficiency, and a carpet made from the BCF modified cross-section yarn has good appearance, sense of touch, and tufting efficiency.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 10, 2003
    Applicant: Hyosung Corporation
    Inventors: Kyool Seop Lee, Young Chan Choi, Jong Bok Lee
  • Poly (trimethylene terephthalate) BCF carpet yarn with noncircular cross section and method for preparing the same
    Publication number: 20030064219
    Abstract: Disclosed is a poly(trimethylene terephthalate) BCF carpet modified cross-section yarn having an modification ratio and a arm angle within a specific range and a Y-shaped cross-section, and a method for preparing it. The BCF modified cross-section yarn has excellent bulk property and spinning efficiency, and a carpet made from the BCF modified cross-section yarn has good appearance, sense of touch, and tufting efficiency.
    Type: Application
    Filed: February 15, 2002
    Publication date: April 3, 2003
    Inventors: Kyool Seop Lee, Young Chan Choi, Jong Bok Lee
  • Method for preparing poly (trimethylene terephthalate) carpet
    Publication number: 20020197444
    Abstract: Disclosed is a method for preparing a poly(trimethylene terephthalate) carpet, in which the poly(trimethylene terephthalate) carpet is prepared from poly(trimethylene terephthalate) yarns through the post-processes comprising cabling, heat setting, tufting, dyeing, becking, and shearing. The poly(trimethylene terephthalate) yarns have advantages of improved quality, functionality, and workability by optimizing operating conditions of the steps.
    Type: Application
    Filed: February 15, 2002
    Publication date: December 26, 2002
    Inventors: Kyool Seop Lee, Young Chan Choi, Jong Bok Lee