Patents by Inventor Zhequan PIAO

Zhequan PIAO 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: 20210025111
    Abstract: Method for manufacturing artificial leather having excellent fastness and dyeing properties by using a dope-dyed polyester sea-island type composite yarn and artificial leather produced by the method are disclosed. A non-woven fabric is made of a dope-dyed polyester sea-island type composite yarn, to which an organic pigment and/or inorganic pigment is added. The yarn is impregnated with a polyurethane resin containing an organic and/or inorganic pigment, followed by weight reduction processing and dying with a disperse dye. The fabric/artificial leather expresses an uniform and deep color.
    Type: Application
    Filed: August 30, 2018
    Publication date: January 28, 2021
    Applicant: Kolon Industries, Inc.
    Inventors: Jong-ho PARK, Zhequan PIAO, Dae-young JUNG
  • Publication number: 20190153668
    Abstract: An artificial leather composed of a dope-dyed polyester fiber is provided. The artificial leather includes a carbon black in island component of a sea-island composite fiber and a polyurethane polymer elastomer. It is possible to improve the fastness to light and the fastness to rubbing at medium and deeper color, and at the same time, to have a luxuriously high quality and to reduce the amount of dye used in the production of artificial leather.
    Type: Application
    Filed: December 6, 2017
    Publication date: May 23, 2019
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Jong-ho PARK, Zhequan PIAO, Dae-young JUNG
  • Publication number: 20170284018
    Abstract: A suede type artificial leather having an antifouling property is provided. A polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and the fluorine-containing modified polyurethane is obtained by a polymerization of a urethane prepolymer having isocyanate groups at terminals, obtained by reacting a diol and a diisocyanate, and a fluorinated carbon compound having hydroxy functional groups at both terminals. The fluorine-containing modified polyurethane has a weight average molecular weight of 500,000 to 800,000. The suede type artificial leather is prepared by using the fluorine-containing polyurethane elastomer.
    Type: Application
    Filed: September 23, 2015
    Publication date: October 5, 2017
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Hyuk-jae YOU, Gyoung-cherl GO, Dae-young JUNG, Zhequan PIAO