Patents by Inventor Young J. Hong

Young J. Hong 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).

  • Patent number: 5342658
    Abstract: The present invention relates to an ultraviolet light curable coating composition having a shorter curing time and an excellent abrasion resistance, which comprises:(A) an aqueous-alcoholic base resin dispersion containing, based on the weight of the total solids present in the base resin dispersion,(a) 5 to 75% by weight of a colloidal silica and(b) 25 to 95% by weight of a partial condensate of a silanol of formula:R SI(OH).sub.3whereinR is a C.sub.1-6 alkyl, C.sub.6-20 aryl or hydroxy group; and(B) an ultraviolet light curable catalyst of formulaAr.sub.3 S.sup.+ MX.sub.n.sup.-whereinAr.sub.3 is a triphenyl, tri(4-methoxy)phenyl, tri(3,5-dimethyl-4-hydroxyphenyl), diphenyl-2,5-dimethylphenyl or tri(4-methyl) phenyl group; andMX.sub.n.sup.- is a metallic halide anion.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: August 30, 1994
    Assignee: Lucky Limited
    Inventors: Young J. Hong, Jin B. Kim, Jong K. Yeo