Patents by Inventor Kyeongmun Kim

Kyeongmun Kim 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: 20250163215
    Abstract: Provided are a resin including a unit of Chemical Formula 1 and a unit of Chemical Formula 2, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition, wherein all the variables are described herein.
    Type: Application
    Filed: October 6, 2023
    Publication date: May 22, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Seungmin Yoo, Hye Jin Yim, Seungmook Lee, Hyeonwoo Baek, Jaesoon Bae
  • Publication number: 20250101172
    Abstract: Provided is a polycarbonate resin having a relaxation time of 2 seconds to 15 seconds at 250° C. and a residual phenol content of 3,000 ppm or less.
    Type: Application
    Filed: October 4, 2023
    Publication date: March 27, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Jaesoon Bae, Hyeonwoo Baek, Seungmin Yoo, Seungmook Lee, Hye Jin Yim
  • Publication number: 20250011535
    Abstract: Provided is a polycarbonate resin having a high shear viscosity of 10 Pa·s to 260 Pa·s at 250° C.
    Type: Application
    Filed: August 22, 2023
    Publication date: January 9, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Jaesoon Bae, Hyeonwoo Baek, Seungmin Yoo, Seungmook Lee, Hye Jin Yim
  • Publication number: 20240425646
    Abstract: Provided are a polycarbonate resin including a unit of Chemical Formula 1, a method for preparing the same, a polycarbonate resin composition including the same, and a molded article including the polycarbonate resin composition, where all the variables are described herein.
    Type: Application
    Filed: July 3, 2023
    Publication date: December 26, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Jonghwa Baek, Kyeongmun Kim, Jaesoon Bae, Hye Jin Yim, Hyeonwoo Baek, Seungmin Yoo, Seungmook Lee
  • Publication number: 20240392066
    Abstract: A polycarbonate resin including a unit of Chemical Formula 1, a method for preparing the same, a polycarbonate resin composition including the same, and a molded article including the polycarbonate resin composition are disclosed herein. In some embodiments, a polycarbonate resin including a unit of Chemical Formula 1: Ar1 and Ar2 are each independently an aryl group, or a heteroaryl group, R1 is hydrogen, deuterium, a halogen group, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, a silyl group, an aryl group, or a heteroaryl group, r1 is 1 or 2, X1 to X4 are each independently O or S, Z1 and Z2 are each independently an alkylene group, or a cycloalkylene group, and a and b are each independently an integer from 1 to 10.
    Type: Application
    Filed: September 2, 2022
    Publication date: November 28, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Hye Jin Yim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Min Suk Jung
  • Publication number: 20240384028
    Abstract: A polycarbonate resin including a unit of Chemical Formula 1 and a unit of Chemical Formula 2, a method for preparing the same, a polycarbonate resin composition including the same, and a molded article are disclosed herein: Ar1 and Ar2 are independently an aryl group, or a heteroaryl group, R1 is hydrogen, deuterium, a halogen group, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, a silyl group, an aryl group, or a heteroaryl group, R2 and R3 are different from each other, r1 is 1 or 2, r2 and r3 are each an integer from 1 to 4, L1 and L2 are independently an arylene group, X1 to X8 are independently O or S, Z1 to Z4 are independently an alkylene group, or a cycloalkylene group, and a, b, c and d are independently an integer from 1 to 10.
    Type: Application
    Filed: August 12, 2022
    Publication date: November 21, 2024
    Applicants: LG Chem, Ltd., LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Hye Jin Yim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Min Suk Jung
  • Publication number: 20240301133
    Abstract: A resin including a unit of Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition are described: wherein all the variables are described herein.
    Type: Application
    Filed: February 8, 2023
    Publication date: September 12, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Hyeonah Shin, Hye Jin Yim, Jaesoon Bae
  • Publication number: 20240150521
    Abstract: A polycarbonate resin including a unit of Chemical Formula 1, a method for preparing the same, a polycarbonate resin composition including the same, and a molded article including the polycarbonate resin composition are described: wherein all the variables are described herein.
    Type: Application
    Filed: February 8, 2023
    Publication date: May 9, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Hye Jin Yim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Min Suk Jung
  • Publication number: 20240141100
    Abstract: A resin including a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition is described: wherein all the variables are described herein.
    Type: Application
    Filed: May 16, 2022
    Publication date: May 2, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Min Suk Jung, Kyeongmun Kim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Kyeongmin Kim, Bora Shin, Hye Jin Yim, Il Hwan Choi
  • Publication number: 20240043610
    Abstract: A resin, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition are disclosed in herein. In some embodiments, a resin includes a unit of Chemical Formula 1 and a unit of Chemical Formula 2: wherein, in Chemical Formulae 1 and 2, Ar1, Ar2, R1, r1, X1 to X4, X9, X10, Z1, Z2, Z5, La, La?, a, b, p, t, m, n, L11, l11, X11 to X16, Z11 to Z13, Lb, Lb?, a?, b?, p?, C?, m? and n? are defined herein.
    Type: Application
    Filed: September 2, 2022
    Publication date: February 8, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim
  • Publication number: 20230407005
    Abstract: A resin, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition are disclosed herein. In some embodiments, the resin includes a unit of Chemical Formula 1 and a unit of Chemical Formula 2 wherein, in Chemical Formulae 1 and 2, Ar1, Ar2, R1 to R3, r1 to r3, L1, L2, X1 to X10, X?9, X?10, Z1 to Z6, La, La?, La?, La??, a, b, c, d, p, q, t, t?, m, n, m? and n? are defined herein.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 21, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim
  • Publication number: 20230303767
    Abstract: A resin includes a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition in Chemical Formula 1, Ar1, Ar2, R1, r1, X1 to X4, Z1, Z2, a and b are described herein.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 28, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Min Suk Jung, Kyeongmun Kim, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim, Il Hwan Choi, Kyeongmin Kim, Bora Shin
  • Publication number: 20230295372
    Abstract: The present application relates to a resin including a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 21, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Kyeongmun Kim, Kyeongmin Kim, Bora Shin