Patents by Inventor Kyo-Duck Ahn

Kyo-Duck Ahn 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).

  • Composition for manufacturing a carboxylic group-containing polymer and a polymer manufactured by using the same
    Patent number: 8283430
    Abstract: The present invention relates to a composition for manufacturing a carboxylic group-containing polymer and a carboxylic group-containing polymer manufactured by using the same. More particularly, the present invention relates to a composition for manufacturing a carboxylic group-containing polymer comprising an allyl monomer having a long chain of a hydrophilic part containing alkylene oxide and a side chain of a hydrophobic part containing fatty acid ester as a dispersion promoter; a vinyl group-containing unsaturated carboxylic acid; a vinyl group-containing crosslinking agent; and a radical polymerization initiator, and a carboxylic group-containing polymer manufactured by using the same wherein the polymer can be dispersed in water without stirring, its dispersion solution has low viscosity, and its neutralized viscous solution obtained by alkali neutralization has high viscosity and transparency.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: October 9, 2012
    Assignee: AK Chemtech Co. Ltd.
    Inventors: Kyo-Duck Ahn, Jong-Gi Lee, Choun-San Kim, Young-Shin Kim
  • COMPOSITION FOR MANUFACTURING A CARBOXYLIC GROUP-CONTAINING POLYMER AND A POLYMER MANUFACTURED BY USING THE SAME
    Publication number: 20090318653
    Abstract: The present invention relates to a composition for manufacturing a carboxylic group-containing polymer and a carboxylic group-containing polymer manufactured by using the same. More particularly, the present invention relates to a composition for manufacturing a carboxylic group-containing polymer comprising an allyl monomer having a long chain of a hydrophilic part containing alkylene oxide and a side chain of a hydrophobic part containing fatty acid ester as a dispersion promoter; a vinyl group-containing unsaturated carboxylic acid; a vinyl group-containing crosslinking agent; and a radical polymerization initiator, and a carboxylic group-containing polymer manufactured by using the same wherein the polymer can be dispersed in water without stirring, its dispersion solution has low viscosity, and its neutralized viscous solution obtained by alkali neutralization has high viscosity and transparency.
    Type: Application
    Filed: February 13, 2008
    Publication date: December 24, 2009
    Applicant: AK CHEMTECH CO., LTD.
    Inventors: Kyo-Duck Ahn, Jong-Gi Lee, Choun-San Kim, Young-Shin Kim