Patents by Inventor Min Cheol Ju

Min Cheol Ju 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: 20180155507
    Abstract: Disclosed are a method of preparing a resin powder and an integrated reactor for the same. When a coagulation process is performed using an acidic coagulant in the integrated coagulator for latex coagulation and aging according to the present invention, a remaining acidic coagulant is also removed from a reactor through neutralization, and thus, a resin powder having enhanced moist-heat resistance and thermal stability may be prepared.
    Type: Application
    Filed: August 31, 2015
    Publication date: June 7, 2018
    Inventors: Min Cheol JU, Min Seung SHIN, Won Seok LEE, Hyung Sub LEE, Seok Goo JANG, Jeong Su CHOI, Sung Won HONG, In Soo KIM, Ho Hoon KIM, Sang Hoo PARK, Keun Hoon YOO, Roo Da LEE
  • Patent number: 9926444
    Abstract: Disclosed are a thermoplastic resin composition and a method of preparing the same. More particularly, the present invention relates to a thermoplastic resin composition including 10 to 90% by weight of a graft copolymer resin coagulated by an organic acid or an organic acid salt; and 90 to 10% by weight of a non-graft copolymer resin and having a moist-heat characteristic of 20 or less, wherein a refractive index difference between the graft copolymer resin and the non-graft copolymer resin is less than 0.01, a method of preparing the same, and a molded product comprising the same. According to the present disclosure, provided are a thermoplastic resin composition having superior overall property balance, color, and transparency, and being applicable to products that are exposed to high-temperature water or should be sterilized, due to excellent moist-heat resistance thereof, a method of preparing the same, and a molded product comprising the same.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: March 27, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jeong Su Choi, Min Cheol Ju, Min Seung Shin, Sung Won Hong, In Soo Kim, Ho Hoon Kim, Sang Hoo Park, Keun Hoon Yoo, Roo Da Lee, Won Seok Lee, Hyung Sub Lee, Seok Goo Jang
  • Publication number: 20170260384
    Abstract: Disclosed are a thermoplastic resin composition and a method of preparing the same. More particularly, the present invention relates to a thermoplastic resin composition including 10 to 90% by weight of a graft copolymer resin coagulated by an organic acid or an organic acid salt; and 90 to 10% by weight of a non-graft copolymer resin and having a moist-heat characteristic of 20 or less, wherein a refractive index difference between the graft copolymer resin and the non-graft copolymer resin is less than 0.01, a method of preparing the same, and a molded product comprising the same. According to the present disclosure, provided are a thermoplastic resin composition having superior overall property balance, color, and transparency, and being applicable to products that are exposed to high-temperature water or should be sterilized, due to excellent moist-heat resistance thereof, a method of preparing the same, and a molded product comprising the same.
    Type: Application
    Filed: October 15, 2015
    Publication date: September 14, 2017
    Inventors: Jeong Su CHOI, Min Cheol JU, Min Seung SHIN, Sung Won HONG, In Soo KIM, Ho Hoon KIM, Sang Hoo PARK, Keun Hoon YOO, Roo Da LEE, Won Seok LEE, Hyung Sub LEE, Seok Goo JANG
  • Publication number: 20170260300
    Abstract: The present invention relates to a thermoplastic resin. In accordance with the present invention, a thermoplastic resin exhibiting superior heat resistance, gloss, and whiteness while having mechanical properties identical to or higher than those of a conventional thermoplastic resin and a thermoplastic resin composition including the same are provided.
    Type: Application
    Filed: August 31, 2016
    Publication date: September 14, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Sung Won HONG, Hyung Sub LEE, Min Cheol JU, Min Seung SHIN, In Soo KIM
  • Patent number: 9504972
    Abstract: Disclosed are an apparatus for preparing a polymer latex resin powder in which an efficiency of mixing of steam, a latex, and a coagulant is increased by introducing a non-continuous screw into a reactor that performs coagulation and aging and thus a moisture content of a slurry is decreased and, accordingly, drying efficiency may be enhanced, and a polymer latex resin powder with excellent color and powder characteristics may be prepared using a decreased amount of coagulant and a method of preparing a polymer latex resin powder by using the same.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: November 29, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Chang Sull Kim, Min Cheol Ju, Hyung Sub Lee, Hoi In Jeong
  • Publication number: 20150322255
    Abstract: Disclosed are an apparatus for preparing a polymer latex resin powder in which an efficiency of mixing of steam, a latex, and a coagulant is increased by introducing a non-continuous screw into a reactor that performs coagulation and aging and thus a moisture content of a slurry is decreased and, accordingly, drying efficiency may be enhanced, and a polymer latex resin powder with excellent color and powder characteristics may be prepared using a decreased amount of coagulant and a method of preparing a polymer latex resin powder by using the same.
    Type: Application
    Filed: December 24, 2013
    Publication date: November 12, 2015
    Inventors: Chang Sull Kim, Min Cheol Ju, Hyung Sub Lee, Hoi In Jeong