Patents by Inventor Jin A. JE

Jin A. JE 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).

  • Crystalline polyamide ester resin, method for preparing the same, and article including the same
    Patent number: 9371421
    Abstract: A crystalline polyamide ester resin is prepared by copolymerizing (A) a dicarboxylic acid component, (B) a diamine component, and (C) a cyclic aliphatic diol component, and has a structure in which a dicarboxylic acid moiety derived from the dicarboxylic acid component (A), a diamine moiety derived from the diamine component (B) and a cyclic aliphatic diol moiety derived from the cyclic aliphatic diol component (C) are repeated. A molar ratio ((B):(C)) of the diamine component (B) to the cyclic aliphatic diol component (C) is about 80 to about 99:about 1 to about 20. The crystalline polyamide ester resin has a melting point (Tm) ranging from about 280° C. to about 320° C. and a crystallization temperature (Tc) ranging from about 260° C. to about 290° C. The crystalline polyamide ester resin can have excellent heat resistance, discoloration resistance and moldability.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: June 21, 2016
    Assignee: Cheil Industries Inc.
    Inventors: So Young Kwon, Jin Kyu Kim, Seung Youb Bang, Sang Kyun Im, Jin A Je, Ki Yon Lee, Suk Min Jun, Sung Chul Choi
  • Crystalline Polyamide Ester Resin, Method for Preparing the Same, and Article Including the Same
    Publication number: 20140187739
    Abstract: A crystalline polyamide ester resin is prepared by copolymerizing (A) a dicarboxylic acid component, (B) a diamine component, and (C) a cyclic aliphatic diol component, and has a structure in which a dicarboxylic acid moiety derived from the dicarboxylic acid component (A), a diamine moiety derived from the diamine component (B) and a cyclic aliphatic diol moiety derived from the cyclic aliphatic diol component (C) are repeated. A molar ratio ((B):(C)) of the diamine component (B) to the cyclic aliphatic diol component (C) is about 80 to about 99:about 1 to about 20. The crystalline polyamide ester resin has a melting point (Tm) ranging from about 280° C. to about 320° C. and a crystallization temperature (Tc) ranging from about 260° C. to about 290° C. The crystalline polyamide ester resin can have excellent heat resistance, discoloration resistance and moldability.
    Type: Application
    Filed: July 23, 2013
    Publication date: July 3, 2014
    Inventors: So Young KWON, Jin Kyu KIM, Seung Youb BANG, Sang Kyun IM, Jin A. JE, Ki Yon LEE, Suk Min JUN, Sung Chul CHOI