Patents by Inventor Jeong Hyeon HWANG

Jeong Hyeon HWANG 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).

  • Glass fiber-reinforced polyamide 66 resin composition with high tensile strength and method of manufacturing the same
    Patent number: 10273348
    Abstract: A glass fiber-reinforced polyamide 66 resin composition with a high tensile strength of 260 MPa or more and a method of manufacturing the same are provided. The method of manufacturing the composition includes that 27.2 to 49% by weight of a polyamide 66 resin, 0.2 to 2% by weight of a dye mixture, 0.2 to 2% by weight of a compatibilizer, 0.1 to 3% by weight of an antioxidant, 0.1 to 3% by weight of a lubricant and 50 to 70% by weight of a glass fiber chopped strand are mixed in a twin screw extruder, the materials are extruded in the form of a strand by an extrusion die, and cooled to obtain a pellet-type glass fiber-reinforced polyamide 66 resin composition. The glass fiber-reinforced polyamide 66 resin composition is suitable for vehicular engine mounts due to excellent mechanical strength, and for parts requiring physical properties.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: April 30, 2019
    Assignee: DTR CO., LTD.
    Inventors: Kwang Jea Kim, Jong-Young Lee, Sung Min Kim, Jeong Hyeon Hwang
  • GLASS FIBER-REINFORCED POLYAMIDE 66 RESIN COMPOSITION WITH HIGH TENSILE STRENGTH AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20170058104
    Abstract: A glass fiber-reinforced polyamide 66 resin composition with a high tensile strength of 260 MPa or more and a method of manufacturing the same are provided. The method of manufacturing the composition includes that 27.2 to 49% by weight of a polyamide 66 resin, 0.2 to 2% by weight of a dye mixture, 0.2 to 2% by weight of a compatibilizer, 0.1 to 3% by weight of an antioxidant, 0.1 to 3% by weight of a lubricant and 50 to 70% by weight of a glass fiber chopped strand are mixed in a twin screw extruder, the materials are extruded in the form of a strand by an extrusion die, and cooled to obtain a pellet-type glass fiber-reinforced polyamide 66 resin composition. The glass fiber-reinforced polyamide 66 resin composition is suitable for vehicular engine mounts due to excellent mechanical strength, and for parts requiring physical properties.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Inventors: Kwang Jea KIM, Jong-Young LEE, Sung Min KIM, Seung Min LEE, Jeong Hyeon HWANG