Patents by Inventor Ho Hoon KIM
Ho Hoon 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: 20250092239Abstract: A thermoplastic resin composition includes 100 parts by weight of a base resin including 3 to 22% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing alkyl acrylate rubber having an average particle diameter of 50 to 200 nm, 20 to 40% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing alkyl acrylate rubber having an average particle diameter of greater than 200 nm and 600 nm or less, and 50 to 72% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer (B); and 0.6 to 1.9 parts by weight of a lubricant (C), wherein, based on 100% by weight in total of the thermoplastic resin composition, a total content of rubber as measured by FT-IR is 15 to 21% by weight.Type: ApplicationFiled: July 17, 2023Publication date: March 20, 2025Inventors: Yong Hee AN, Tae Hoon KIM, Yun Kyoung CHO, Chun Ho PARK, Ho Hoon KIM, Jeongmin JANG, Hyeok Jun YOON
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Patent number: 12227639Abstract: The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition includes 100 parts by weight of styrene-based resins; 0.5 to 5 parts by weight of a first polyamide resin having a melting temperature (Tm) of 230° C. or less; and 0.5 to 10 parts by weight of a second polyamide resin having a melting temperature (Tm) of 250° C. or more. Both the first and second polyamide resins have a relative viscosity of 2.5 or less. The present disclosure advantageously provides a low-gloss thermoplastic resin composition having excellent aesthetics, such as softness, luxuriousness, and naturalness, due to uniform and low gloss, and improvement in surface texture while having mechanical properties and processability equal or superior to those of conventional ASA resins; and an exterior material including the low-gloss thermoplastic resin composition.Type: GrantFiled: March 9, 2021Date of Patent: February 18, 2025Assignee: LG Chem, Ltd.Inventors: Daeun Sung, Tae Hoon Kim, Ho Hoon Kim, Chun Ho Park, Yong Hee An, Jeongmin Jang, Wangrae Joe
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Patent number: 12195488Abstract: According to the organometallic compound of the present invention and the thin film manufactured using the same, requirements of high volatility and excellent chemical/thermal stability are satisfied, and significantly improved thin-film deposition rates are exhibited even at low temperatures. In addition, property degradation due to by-products can be improved, excellent step coverage can be realized, and a thin film which, due to having a high dielectric constant, electrically satisfies the equivalent oxide thickness (EOT) requirement while having a thickness at which tunneling does not physically occur can be implemented.Type: GrantFiled: January 25, 2019Date of Patent: January 14, 2025Assignee: Merck Patent GMBHInventors: Seung Won Ha, Young Hun Byun, Jeum Jong Kim, Ho Hoon Kim, Seong Hak Cheon
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Patent number: 12134689Abstract: The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.05 to 0.15 ?m as a core, an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.3 to 0.6 ?m as a core, an aromatic vinyl polymer (B-1), and a heat-resistant aromatic vinyl polymer (B-2); and 0.5 to 10 parts by weight of a polyolefin elastomer (C). Within this range, the thermoplastic resin composition may have a heat deflection temperature (HDT) of 89° C. or more.Type: GrantFiled: September 11, 2020Date of Patent: November 5, 2024Assignee: LG CHEM, LTD.Inventors: Jeongmin Jang, Tae Hoon Kim, Chun Ho Park, Da Eun Sung, Yong Hee An, Wangrae Cho, Ho Hoon Kim
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Patent number: 12031024Abstract: A thermoplastic resin composition and a molded article including the same can include 100 parts by weight of a base resin including 10 to 50% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.3 to 0.5 ?m, 5 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.05 ?m or more and less than 0.3 ?m, and 20 to 65% by weight of an aromatic vinyl polymer (B), and 0.5 to 12 parts by weight of a polyamide (C). The thermoplastic resin composition can have a solvent resistance of 15 days or more.Type: GrantFiled: December 18, 2020Date of Patent: July 9, 2024Assignee: LG Chem, Ltd.Inventors: Chun Ho Park, Tae Hoon Kim, Daeun Sung, Yong Hee An, Wangrae Joe, Ho Hoon Kim, Jeongmin Jang
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Patent number: 11999845Abstract: A thermoplastic resin composition and a molded article including the same are disclosed in which the thermoplastic resin composition includes 100 parts by weight of a base resin including an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer; and 0.5 to 10 parts by weight of a matting agent having a refractive index of 1.46 to 1.53, and a molded article including the thermoplastic resin composition, wherein the thermoplastic resin composition satisfies Equations 1 and 2 below: G?20,??[Equation 1] wherein G denotes the gloss of a sheet having a size of 0.15 T as measured at 60° using a gloss meter, Hz<Tt,??[Equation 2] wherein Hz and Tt denote the haze (%) and total light transmittance (%) of a sheet having a size of 0.15 T, respectively.Type: GrantFiled: December 17, 2020Date of Patent: June 4, 2024Assignee: LG Chem, Ltd.Inventors: Chun Ho Park, Tae Hoon Kim, Daeun Sung, Yong Hee An, Wangrae Joe, Ho Hoon Kim, Jeongmin Jang
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Publication number: 20240110049Abstract: The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition included 90 to 99.5% by weight of styrene-based resins each including 5 to 30% by weight of acrylate rubber having a DLS average particle diameter of 0.25 to 0.32 ?m or a TEM average particle diameter of 0.2 to 0.27 ?m based on a total weight of the styrene-based resins; and 0.5 to 10% by weight of a polyamide resin, and an exterior material including the thermoplastic resin composition. According to the present disclosure, a low-gloss thermoplastic resin composition having excellent aesthetics, such as softness, luxuriousness, and naturalness, due to uniformity, low gloss, and improvement in surface texture while having mechanical properties and processability equal or superior to those of conventional ASA resins; and an exterior material including the low-gloss thermoplastic resin composition may be provided.Type: ApplicationFiled: December 11, 2020Publication date: April 4, 2024Applicant: LG CHEM, LTD.Inventors: Daeun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Wangrae JOE, Ho Hoon KIM, Jeongmin JANG
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Patent number: 11884810Abstract: The present invention relates to a thermoplastic resin composition and a molded article including the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of 10 to 30% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) including an acrylate rubber having an average particle diameter of 0.05 to 0.15 ?m, 20 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) including an acrylate rubber having an average particle diameter of 0.3 to 0.5 ?m, 0 to 35% by weight of an aromatic vinyl polymer (B), and 10 to 60% by weight of a polymethacrylate (C); and 0.5 to 10 parts by weight of a polyamide (D).Type: GrantFiled: August 25, 2020Date of Patent: January 30, 2024Assignee: LG CHEM, LTD.Inventors: Da Eun Sung, Tae Hoon Kim, Chun Ho Park, Yong Hee An, Wangrae Cho, Ho Hoon Kim, Jeongmin Jang
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Publication number: 20220372268Abstract: The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition includes 100 parts by weight of styrene-based resins; 0.5 to 5 parts by weight of a first polyamide resin having a melting temperature (Tm) of 230° C. or less; and 0.5 to 10 parts by weight of a second polyamide resin having a melting temperature (Tm) of 250° C. or more. Both the first and second polyamide resins have a relative viscosity of 2.5 or less. The present disclosure advantageously provides a low-gloss thermoplastic resin composition having excellent aesthetics, such as softness, luxuriousness, and naturalness, due to uniform and low gloss, and improvement in surface texture while having mechanical properties and processability equal or superior to those of conventional ASA resins; and an exterior material including the low-gloss thermoplastic resin composition.Type: ApplicationFiled: March 9, 2021Publication date: November 24, 2022Applicant: LG CHEM, LTD.Inventors: Daeun SUNG, Tae Hoon KIM, Ho Hoon KIM, Chun Ho PARK, Yong Hee AN, Jeongmin JANG, Wangrae JOE
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Publication number: 20220340747Abstract: A thermoplastic resin composition and a molded article including the same are disclosed in which the thermoplastic resin composition includes 100 parts by weight of a base resin including an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer; and 0.5 to 10 parts by weight of a matting agent having a refractive index of 1.46 to 1.53, and a molded article including the thermoplastic resin composition, wherein the thermoplastic resin composition satisfies Equations 1 and 2 below: G?20,??[Equation 1] wherein G denotes the gloss of a sheet having a size of 0.15 T as measured at 60° using a gloss meter, Hz<Tt,??[Equation 2] wherein Hz and Tt denote the haze (%) and total light transmittance (%) of a sheet having a size of 0.15 T, respectively.Type: ApplicationFiled: December 17, 2020Publication date: October 27, 2022Applicant: LG CHEM, LTD.Inventors: Chun Ho PARK, Tae Hoon KIM, Daeun SUNG, Yong Hee AN, Wangrae JOE, Ho Hoon KIM, Jeongmin JANG
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Publication number: 20220332936Abstract: A thermoplastic resin composition and a molded article including the same can include 100 parts by weight of a base resin including 10 to 50% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.3 to 0.5 ?m, 5 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.05 ?m or more and less than 0.3 ?m, and 20 to 65% by weight of an aromatic vinyl polymer (B), and 0.5 to 12 parts by weight of a polyamide (C). The thermoplastic resin composition can have a solvent resistance of 15 days or more.Type: ApplicationFiled: December 18, 2020Publication date: October 20, 2022Applicant: LG CHEM, LTD.Inventors: Chun Ho PARK, Tae Hoon KIM, Daeun SUNG, Yong Hee AN, Wangrae JOE, Ho Hoon KIM, Jeongmin JANG
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Patent number: 11434358Abstract: The present invention relates to a matrix copolymer including a cellulose nanocrystal derivative, an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and a vinyl cyan-based monomer unit; a graft copolymer including a cellulose nanocrystal derivative, a conjugated diene-based polymer, an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and a vinyl cyan-based monomer unit; and a thermoplastic resin composition including at least one thereof. In accordance with the present invention, provided is a thermoplastic resin composition having improved processability, impact strength, tensile strength and chemical resistance while maintaining transparency.Type: GrantFiled: May 14, 2019Date of Patent: September 6, 2022Assignee: LG CHEM, LTD.Inventors: Hye Jeong Ok, Seok Goo Jang, Sang Hoo Park, Hyung Seop Shim, Jeong Su Choi, Keun Hoon Yoo, Won Seok Lee, Roo Da Lee, Ho Hoon Kim, Jong Ju Lee
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Patent number: 11421103Abstract: The present invention relates to a method for preparing a graft copolymer powder, which includes: performing emulsion polymerization of a conjugated diene polymer, an aromatic vinyl monomer and an alkyl (meth)acrylate monomer to prepare a graft copolymer latex; coagulating the graft copolymer latex; aging the coagulated graft copolymer; preparing a wet powder of the graft copolymer by dehydrating the aged graft copolymer; and adding poly(oxyalkylene)diglycolic acid to the wet powder of the graft copolymer.Type: GrantFiled: November 9, 2018Date of Patent: August 23, 2022Assignee: LG CHEM, LTDInventors: Jong Ju Lee, Jeong Su Choi, Won Seok Lee, Roo Da Lee, Ho Hoon Kim, Keun Hoon Yoo, Seok Goo Jang, Sang Hoo Park, Hye Jeong Ok, Hyung Seop Shim
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Publication number: 20220177692Abstract: Provided is a thermoplastic resin composition which includes: a first graft copolymer including a first acrylic rubber polymer; a second graft copolymer including a second acrylic rubber polymer; and a first styrene-based copolymer including an alkyl-substituted styrene-based monomer unit and an acrylonitrile-based monomer unit, wherein the first acrylic rubber polymer has an average particle diameter larger than that of the second acrylic rubber polymer, the first graft copolymer is included in a larger amount than the second graft copolymer, and the sum of the first graft copolymer and the second graft copolymer is 22 parts by weight or less with respect to 100 parts by weight of the sum of the first graft copolymer, the second graft copolymer, and the first styrene-based copolymer.Type: ApplicationFiled: January 27, 2021Publication date: June 9, 2022Inventors: Da Eun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Wang Rae JOE, Ho Hoon KIM, Jeong Min JANG
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Publication number: 20220135786Abstract: Disclosed is an ASA resin composition, a molded article including the ASA resin composition, and a method of manufacturing the molded article. Also disclosed is an ASA resin composition including 20 to 47% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer containing acrylate rubber having an average particle diameter of 50 to 150 nm as a core; 23 to 55% by weight of an alkyl methacrylate-aromatic vinyl compound-vinyl cyanide compound copolymer; and 25 to 45% by weight of a poly(alkyl methacrylate) resin, a molded article including the ASA resin composition, and a method of manufacturing the molded article. Also disclosed is an ASA resin composition having excellent colorability and transparency even at a processing thickness of a predetermined value while having excellent mechanical properties and processability, a molded article including the ASA resin composition, and a method of manufacturing the molded article are provided.Type: ApplicationFiled: September 28, 2020Publication date: May 5, 2022Applicant: LG CHEM, LTD.Inventors: Yong Hee AN, Tae Hoon KIM, Chun Ho PARK, Da Eun SUNG, Wangrae CHO, Ho Hoon KIM, Jeongmin JANG
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Patent number: 11312852Abstract: The present invention relates to a method for preparing a graft copolymer complex, a copolymer complex prepared by the method, and a thermoplastic resin composition comprising the copolymer complex, wherein the method comprises emulsion-polymerizing a conjugated diene-based polymer, an aromatic vinyl-based monomer, and an alkyl (meth)acrylate-based monomer to prepare a graft copolymer latex; and adding an imidazole-based ionic compound to the graft copolymer latex and coagulating the same.Type: GrantFiled: October 2, 2018Date of Patent: April 26, 2022Assignee: LG CHEM, LTD.Inventors: Sang Hoo Park, Seok Goo Jang, Hye Jeong Ok, Ho Hoon Kim, Hyung Seop Shim, Jeong Su Choi, Keun Hoon Yoo, Won Seok Lee, Roo Da Lee, Jong Ju Lee
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Patent number: 11267964Abstract: The present invention relates to a thermoplastic resin composition showing excellent transparency and whitening resistance. The thermoplastic resin composition of the present invention comprises (A) a graft copolymer having a multilayer structure and (B) a thermoplastic copolymer, wherein the graft copolymer having a multilayer structure (A) comprises a core of a conjugated diene-based rubber latex having a weight average particle diameter of 500 ? to 2,000 ?; an intermediate layer; and a graft layer. The glass transition temperature of the intermediate layer is 40° C. or less, the glass transition temperature of the graft layer is 80° C. or more, and the refractive index difference between the graft copolymer (A) and the thermoplastic copolymer (B) is less than 0.01.Type: GrantFiled: September 20, 2018Date of Patent: March 8, 2022Assignee: LG CHEM, LTD.Inventors: Jeong Su Choi, Won Seok Lee, Roo Da Lee, Jong Ju Lee, Keun Hoon Yoo, Seok Goo Jang, Sang Hoo Park, Hye Jeong Ok, Ho Hoon Kim, Hyung Seop Shim
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Publication number: 20220033633Abstract: The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.05 to 0.15 ?m as a core, an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.3 to 0.6 ?m as a core, an aromatic vinyl polymer (B-1), and a heat-resistant aromatic vinyl polymer (B-2); and 0.5 to 10 parts by weight of a polyolefin elastomer (C). Within this range, the thermoplastic resin composition may have a heat deflection temperature (HDT) of 89° C. or more.Type: ApplicationFiled: September 11, 2020Publication date: February 3, 2022Inventors: Jeongmin JANG, Tae Hoon KIM, Chun Ho PARK, Da Eun SUNG, Yong Hee AN, Wangrae CHO, Ho Hoon KIM
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Publication number: 20220010122Abstract: The present invention relates to a thermoplastic resin composition and a molded article including the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of 10 to 30% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) including an acrylate rubber having an average particle diameter of 0.05 to 0.15 ?m, 20 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) including an acrylate rubber having an average particle diameter of 0.3 to 0.5 ?m, 0 to 35% by weight of an aromatic vinyl polymer (B), and 10 to 60% by weight of a polymethacrylate (C); and 0.5 to 10 parts by weight of a polyamide (D).Type: ApplicationFiled: August 25, 2020Publication date: January 13, 2022Inventors: Da Eun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Wangrae CHO, Ho Hoon KIM, Jeongmin JANG
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Publication number: 20210292538Abstract: The present invention relates to a method for preparing a graft copolymer powder, which includes: performing emulsion polymerization of a conjugated diene polymer, an aromatic vinyl monomer and an alkyl (meth)acrylate monomer to prepare a graft copolymer latex; coagulating the graft copolymer latex; aging the coagulated graft copolymer; preparing a wet powder of the graft copolymer by dehydrating the aged graft copolymer; and adding poly(oxyalkylene)diglycolic acid to the wet powder of the graft copolymer.Type: ApplicationFiled: November 9, 2018Publication date: September 23, 2021Inventors: Jong Ju LEE, Jeong Su CHOI, Won Seok LEE, Roo Da LEE, Ho Hoon KIM, Keun Hoon YOO, Seok Goo JANG, Sang Hoo PARK, Hye Jeong OK, Hyung Seop SHIM