Patents by Inventor Young-Mu Joe

Young-Mu Joe 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).

  • Sulfonated poly(arylene ether) having crosslinkable moiety combined in chain of polymer, sulfonated poly(arylene ether) having crosslinkable moieties combined in polymer and at polymer end group, and polymer electrolyte membrane using sulfonated poly(arylene ether)
    Patent number: 8487070
    Abstract: A sulfonated poly(arylene ether) copolymer that has a crosslinking structure in a chain of a polymer, a sulfonated poly(arylene ether) copolymer that has a crosslinking structure in and at an end of a chain of a polymer, and a polymer electrolyte film that is formed by using them are disclosed. According to the polycondensation reaction of the sulfonated dihydroxy monomer (HO—SAr1-OH), the none sulfonated dihydroxy monomer (HO—Ar—OH), the crosslinkable dihalide monomer (X—CM-X) and the none sulfonated dihalide monomer (X—Ar—X), the poly(arylene ether) copolymer in which the sulfonic acid is included is synthesized. The formed poly(arylene ether) copolymer has the crosslinkable structure in the chain of the polymer. In addition, by carrying out the polycondensation reaction in respects to the crosslinkable monohydroxy monomer or the crosslinkable monohalide monomer, the crosslinking can be formed at the end of the polymer.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: July 16, 2013
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Jae-Suk Lee, Myung-Hwan Jeong, Kwan-Soo Lee, Eun-Seon Park, Young-Mu Joe
  • SULFONATED POLY(ARYLENE ETHER) HAVING CROSSLINKABLE MOIETY COMBINED IN CHAIN OF POLYMER, SULFONATED POLY(ARYLENE ETHER) HAVING CROSSLINKABLE MOIETIES COMBINED IN POLYMER AND AT POLYMER END GROUP, AND POLYMER ELECTROLYTE MEMBRANE USING SULFONATED POLY(ARYLENE ETHER)
    Publication number: 20090233146
    Abstract: A sulfonated poly(arylene ether) copolymer that has a crosslinking structure in a chain of a polymer, a sulfonated poly(arylene ether) copolymer that has a crosslinking structure in and at an end of a chain of a polymer, and a polymer electrolyte film that is formed by using them are disclosed. According to the polycondensation reaction of the sulfonated dihydroxy monomer (HO—SAr1-OH), the none sulfonated dihydroxy monomer (HO—Ar—OH), the crosslinkable dihalide monomer (X—CM-X) and the none sulfonated dihalide monomer (X—Ar—X), the poly(arylene ether) copolymer in which the sulfonic acid is included is synthesized. The formed poly(arylene ether) copolymer has the crosslinkable structure in the chain of the polymer. In addition, by carrying out the polycondensation reaction in respects to the crosslinkable monohydroxy monomer or the crosslinkable monohalide monomer, the crosslinking can be formed at the end of the polymer.
    Type: Application
    Filed: October 6, 2008
    Publication date: September 17, 2009
    Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae-Suk Lee, Myung-Hwan Jeong, Kwan-Soo Lee, Eun-Seon Park, Young-Mu Joe