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).
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Publication number: 20250163215Abstract: 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: ApplicationFiled: October 6, 2023Publication date: May 22, 2025Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Seungmin Yoo, Hye Jin Yim, Seungmook Lee, Hyeonwoo Baek, Jaesoon Bae
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Publication number: 20250101172Abstract: 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: ApplicationFiled: October 4, 2023Publication date: March 27, 2025Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Jaesoon Bae, Hyeonwoo Baek, Seungmin Yoo, Seungmook Lee, Hye Jin Yim
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Publication number: 20250011535Abstract: Provided is a polycarbonate resin having a high shear viscosity of 10 Pa·s to 260 Pa·s at 250° C.Type: ApplicationFiled: August 22, 2023Publication date: January 9, 2025Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Jaesoon Bae, Hyeonwoo Baek, Seungmin Yoo, Seungmook Lee, Hye Jin Yim
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Publication number: 20240425646Abstract: 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: ApplicationFiled: July 3, 2023Publication date: December 26, 2024Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Jonghwa Baek, Kyeongmun Kim, Jaesoon Bae, Hye Jin Yim, Hyeonwoo Baek, Seungmin Yoo, Seungmook Lee
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Publication number: 20240392066Abstract: 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: ApplicationFiled: September 2, 2022Publication date: November 28, 2024Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Hye Jin Yim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Min Suk Jung
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Publication number: 20240384028Abstract: 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: ApplicationFiled: August 12, 2022Publication date: November 21, 2024Applicants: LG Chem, Ltd., LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Hye Jin Yim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Min Suk Jung
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Publication number: 20240301133Abstract: 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: ApplicationFiled: February 8, 2023Publication date: September 12, 2024Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Hyeonah Shin, Hye Jin Yim, Jaesoon Bae
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Publication number: 20240150521Abstract: 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: ApplicationFiled: February 8, 2023Publication date: May 9, 2024Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Hye Jin Yim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Min Suk Jung
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Publication number: 20240141100Abstract: 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: ApplicationFiled: May 16, 2022Publication date: May 2, 2024Applicant: 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
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Publication number: 20240043610Abstract: 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: ApplicationFiled: September 2, 2022Publication date: February 8, 2024Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim
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Publication number: 20230407005Abstract: 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: ApplicationFiled: August 12, 2022Publication date: December 21, 2023Applicant: LG Chem, Ltd.Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim
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Publication number: 20230303767Abstract: 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: ApplicationFiled: May 16, 2022Publication date: September 28, 2023Applicant: LG Chem, Ltd.Inventors: Min Suk Jung, Kyeongmun Kim, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim, Il Hwan Choi, Kyeongmin Kim, Bora Shin
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Publication number: 20230295372Abstract: 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: ApplicationFiled: May 16, 2022Publication date: September 21, 2023Applicant: LG Chem, Ltd.Inventors: Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Kyeongmun Kim, Kyeongmin Kim, Bora Shin