Patents by Inventor Hyun Mo LEE
Hyun Mo LEE 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: 20240182693Abstract: Provided is a thermoplastic resin composition comprising polypropylene and a multi-block copolymer. The thermoplastic resin composition including the polypropylene and the multi-block copolymer exhibits excellent scratch resistance, and thus may be usefully used as a resin composition in the manufacturing of products requiring scratch resistance, such as automotive interior materials.Type: ApplicationFiled: September 30, 2022Publication date: June 6, 2024Applicant: LG Chem, Ltd.Inventors: Yun Kon Kim, Eun Ji Shin, Seok Pil Sa, Seul Ki Im, Hyun Mo Lee, Ji Hyun Park
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Publication number: 20240121998Abstract: A thin-film transistor including an active layer disposed on a substrate and including a channel region, a source region connected to a side of the channel region, and a drain region connected to the other side of the channel region; a gate insulating layer on the channel region of the active layer; and a gate electrode on the gate insulating layer. A slope of each side surface of the gate electrode with respect to a boundary surface between the gate insulating layer and the gate electrode is an obtuse angle (a substantially obtuse angel). A slope of each side surface of the gate insulating layer with respect to the boundary surface between the gate insulating layer and the gate electrode is an obtuse angle (a substantially obtuse angel).Type: ApplicationFiled: August 8, 2023Publication date: April 11, 2024Inventors: Sun Hee LEE, Eun Hye KO, Sang Woo SOHN, Jung Hoon LEE, Hyun Mo LEE, Hyun Jun JEONG
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Publication number: 20240078990Abstract: The present invention relates to a polyester sound absorption material having improved moldability and decreased weight and a method of manufacturing a molded product using the same, and more particularly to a polyester sound absorption material, which is capable of integrally molding a skin member and a sound absorption material using a felt including a polyester base fiber, a low-melting-point polyester adhesive fiber and a polyester hollow fiber, without the need to attach an additional sound absorption pad onto a skin member.Type: ApplicationFiled: November 15, 2023Publication date: March 7, 2024Inventors: Hong Mo Koo, Mi Jung Yun, Joon Yong Song, Hyun Dae Cho, Hyung Joon Youn, Jeong Wook Lee
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Publication number: 20230340243Abstract: The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multiblock copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention has excellent elongation and tensile strength as well as high fluidity properties, and thus, may exhibit excellent molding processability.Type: ApplicationFiled: July 30, 2021Publication date: October 26, 2023Applicant: LG Chem, Ltd.Inventors: Hyun Mo Lee, Seul Ki Im, Ji Hyun Park, Yun Kon Kim, Seung Jung Yu, Seok Pil Sa, Ki Soo Lee, Eun Ji Shin
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Patent number: 11795321Abstract: A method for producing a block copolymer composition including a diblock copolymer and a triblock copolymer each containing a polyolefin-based block and a polystyrene-based block is disclosed herein. In some embodiments, the method includes reacting an organic zinc compound with one or more kinds of olefin-based monomers in the presence of a transition metal catalyst to form an intermediate having an olefin-based polymer block, reacting the intermediate styrene-based monomer in the presence of an alkyllithium compound to form a product having a styrene-based polymer block, and reacting the product with water, oxygen, or an organic acid to form a block copolymer wherein the number of moles of the alkyllithium compound used to form the product is larger than the number of moles of the organic zinc compound used to form the intermediate.Type: GrantFiled: March 29, 2019Date of Patent: October 24, 2023Inventors: Seok Pil Sa, Eun Ji Shin, Yoon Ki Hong, Hyun Mo Lee, Ki Soo Lee, Bun Yeoul Lee
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Publication number: 20230303753Abstract: The present invention relates to a method for preparing a polyolefin-polystyrene-based multiblock copolymer having a uniform structure and showing excellent physical properties through continuous type coordination polymerization and batch type anionic polymerization.Type: ApplicationFiled: August 25, 2021Publication date: September 28, 2023Applicant: LG Chem, Ltd.Inventors: Yun Kon Kim, Seul Ki Im, Hyun Mo Lee, Ji Hyun Park, Dong Min Kim, Mi Kyung Kim, Ki Soo Lee, Eun Ji Shin, Seok Pil Sa, Seung Jung Yu
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Publication number: 20230287207Abstract: The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multi-block copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention has significantly improved low-temperature and room temperature impact strength properties as well as high fluidity properties, and thus, may exhibit excellent molding processability.Type: ApplicationFiled: July 30, 2021Publication date: September 14, 2023Applicant: LG Chem, Ltd.Inventors: Ji Hyun Park, Seul Ki Im, Hyun Mo Lee, Yun Kon Kim, Seung Jung Yu, Seok Pil Sa, Ki Soo Lee, Eun Ji Shin
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Publication number: 20230287208Abstract: The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multi-block copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention exhibits high fluidity properties as well as soft feel and high restoring force.Type: ApplicationFiled: August 6, 2021Publication date: September 14, 2023Applicant: LG Chem, Ltd.Inventors: Tae Hee Kim, Ki Soo Lee, Eun Ji Shin, Seok Pil Sa, Seul Ki Im, Hyun Mo Lee, Ji Hyun Park, Yun Kon Kim, Seung Jung Yu
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Publication number: 20230116142Abstract: A polyolefin-polystyrene-based multiblock copolymer and method of making the same are disclosed herein. In some embodiments, a polyolefin-polystyrene-based multiblock copolymer satisfies conditions (a) a weight average molecular weight is 100,000 to 300,000 g/mol; (b) molecular weight distribution is 1.5 to 3.0; (c) measured results of gel permeation chromatography, a graph having an x-axis of log Mw and a y-axis of dw/dlog Mw, are fit to a Gaussian function, where all constants satisfy ?0.01<A<0.03, 4.8<B<5.2, 0.8<C<1.2, and 0.6<D<1.2; and (d) a polyolefin block comprises one or more branch points, where a carbon atom at the branch point is represented by a peak of 36 to 40 ppm, and a terminal carbon atom of a branched chain from the branch point is represented by a peak of 13 to 15 ppm.Type: ApplicationFiled: April 16, 2021Publication date: April 13, 2023Applicant: LG Chem, Ltd.Inventors: Seul Ki Im, Hyun Mo Lee, Ji Hyun Park, Yun Kon Kim, Seung Jung Yu, Seok Pil Sa, Ki Soo Lee, Eun Ji Shin
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Publication number: 20230093294Abstract: The present invention relates to a ligand compound having a novel structure of the following, a transition metal compound and a catalyst composition including the same: Wherein R1 to R7, and n are described herein.Type: ApplicationFiled: April 16, 2021Publication date: March 23, 2023Applicant: LG Chem, Ltd.Inventors: Seok Pil Sa, Eun Ji Shin, Seul Ki Im, Hyun Mo Lee, Ki Soo Lee, Bun Yeoul Lee, Kyung Lee Park
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Publication number: 20230002535Abstract: The present invention relates to an anionic polymerization initiator represented by Formula 1 below for producing a polyolefin-polystyrene block copolymer, an anionic polymerization initiator composition, and a production method therefor, wherein R1, and A are described herein.Type: ApplicationFiled: January 29, 2021Publication date: January 5, 2023Applicant: LG Chem, Ltd.Inventors: Hyun Mo Lee, Seok Pil Sa, Eun Ji Shin, Ki Soo Lee, Bun Yeoul Lee, Tae Jin Kim
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Patent number: 11535741Abstract: A block copolymer composition is disclosed herein. In some embodiments, a block copolymer composition has a weight average molecular weight (Mw) of 70,000 g/mol to 120,000 g/mol, a polydispersity index (PDI) of 1.0 to 2.0, a glass transition temperature (Tg) of ?55° C. to ?30° C., and a melt index (MI), measured at 230° C. and a loading condition of 5 kg, of 0.2 g/10 minutes to 3.0 g/10 minutes. The block copolymer composition has excellent processability.Type: GrantFiled: March 29, 2019Date of Patent: December 27, 2022Inventors: Yoon Ki Hong, Seok Pil Sa, Hyun Mo Lee, Eun Ji Shin, Ki Soo Lee, Bun Yeoul Lee
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Publication number: 20220204747Abstract: A polyolefin-polystyrene multi-block copolymer and a method of producing the same is disclosed herein. In some embodiments, the polyolefin-polystyrene multi-block copolymer has a first complex viscosity of 40,000 Pa·s to 350,000 Pa·s at a temperature of 160° C. and a first frequency of 0.5 rad/s, and has a second complex viscosity of 900 Pa·s to 3,500 Pa·s at a temperature of 160° C. and a second frequency of 125 rad/s. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain.Type: ApplicationFiled: May 15, 2020Publication date: June 30, 2022Applicant: LG Chem, Ltd.Inventors: Hyun Mo Lee, Seok Pil Sa, Seul Ki Im, Ji Hyun Park, Yun Kon Kim, Ki Soo Lee, Eun Ji Shin
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Publication number: 20220195101Abstract: A polyolefin-polystyrene multi-block copolymer and method of making the same is disclosed herein. In some embodiments, a polyolefin-polystyrene multi-block copolymer having a ratio of a loss modulus (E?) to a storage modulus (E?) satisfying the following conditions (a) and (b) over a temperature range of ?80° C. to 40° C., wherein the ratio is represented by a loss tangent (tan ?) value and is obtained by dynamic mechanical analysis (DMA), (a) a maximum of the tan ? value in a peak present in the temperature range is 0.20 to 0.35, and (b) a half-width of the peak ranges from 32.0° C. to 50.0° C. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain.Type: ApplicationFiled: May 15, 2020Publication date: June 23, 2022Applicant: LG Chem, Ltd.Inventors: Ji Hyun Park, Dae Woong Lee, Sung Hyun Park, Seok Pil Sa, Seul Ki Im, Hyun Mo Lee, Yun Kon Kim, Ki Soo Lee, Myung Han Lee, Eun Ji Shin
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Publication number: 20220177634Abstract: A polyolefin-polystyrene multi-block copolymer and a method of making the same are disclosed herein. In some embodiments, a polyolefin-polystyrene multi-block copolymer satisfies conditions (a) to (c) determined by gel permeation chromatography (GPC) and condition (d) determined by 13C NMR, (a) a weight average molecular weight (Mw) of 50,000 g/mol to 150,000 g/mol, (b) a molecular weight distribution of 1.5 to 3.0, a differential of concentration fraction to logarithm of molecular weight as a function of logarithm of molecular weight, obtained from GPC, is modeled to a Gaussian function represented by Equation 1, and (d) a polyolefin block contained in the polyolefin-polystyrene multi-block copolymer includes at least one branched chain. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain.Type: ApplicationFiled: May 15, 2020Publication date: June 9, 2022Applicant: LG Chem, Ltd.Inventors: Seul Ki Im, Seok Pil Sa, Hyun Mo Lee, Ji Hyun Park, Yun Kon Kim, Ki Soo Lee, Eun Ji Shin
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Patent number: 11312856Abstract: A block copolymer composition is disclosed herein. In some embodiments, a block copolymer composition includes a diblock copolymer and a triblock copolymer, each including a polyolefin-based block and a polystyrene-based block, wherein the polyolefin-based blocks are present between 45 wt % to 90 wt %, wherein the polystyrene-based blocks are present between 10 wt % to 55 wt %, wherein the difference (?T) between a thermal decomposition initiation temperature and a thermal decomposition termination temperature (?T) measured by Thermo-Gravimetric Analysis (TGA) is 55° C. or greater, and the diblock copolymer and the triblock copolymer do not have a residual unsaturated bond.Type: GrantFiled: March 29, 2019Date of Patent: April 26, 2022Inventors: Hyun Mo Lee, Eun Ji Shin, Seok Pil Sa, Yoon Ki Hong, Ki Soo Lee, Bun Yeoul Lee
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Patent number: 11292863Abstract: The present invention relates to a polyolefin-polystyrene multi-block copolymer having a structure comprising a polyolefin block and polystyrene blocks bonded to both ends of the polyolefin block, to an organozinc compound for preparing the same, and a method for preparing the polyolefin-polystyrene multi-block copolymer.Type: GrantFiled: February 14, 2018Date of Patent: April 5, 2022Inventors: Bun Yeoul Lee, Seung Soo Park, Chung Sol Kim, Hyun Mo Lee, Sung Dong Kim
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Patent number: 11052384Abstract: The present invention relates to a chrome compound composed of non-coordinating anions and a trivalent chrome cation, a reactant of the chrome compound and a bidentate ligand, an ethylene oligomerization reaction catalyst system using the chrome compound and the reactant, and a method for preparing an ethylene oligomer using the catalyst system. Through the above conformation, the present invention can selectively produce 1-hexene and 1-octene with high activity while omitting the use of methylaluminoxane (MAO), and can provide an ethylene oligomerization process more suitable for mass production.Type: GrantFiled: December 12, 2016Date of Patent: July 6, 2021Assignees: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, S-PRECIOUS CATALYSTS INC.Inventors: Bun Yeoul Lee, Eun Ho Kim, Hyun Mo Lee
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Publication number: 20210108066Abstract: A block copolymer composition is disclosed herein. In some embodiments, a block copolymer composition has a weight average molecular weight (Mw) of 70,000 g/mol to 120,000 g/mol, a polydispersity index (PDI) of 1.0 to 2.0, a glass transition temperature (Tg) of ?55° C. to ?30° C., and a melt index (MI), measured at 230° C. and a loading condition of 5 kg, of 0.2 g/10 minutes to 3.0 g/10 minutes. The block copolymer composition has excellent processability.Type: ApplicationFiled: March 29, 2019Publication date: April 15, 2021Applicant: LG Chem, Ltd.Inventors: Yoon Ki Hong, Seok Pil Sa, Hyun Mo Lee, Eun Ji Shin, Ki Soo Lee, Bun Yeoul Lee
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Publication number: 20210002303Abstract: A method for producing a block copolymer composition including a diblock copolymer and a triblock copolymer each containing a polyolefin-based block and a polystyrene-based block is disclosed herein. In some embodiments, the method includes reacting an organic zinc compound with one or more kinds of olefin-based monomers in the presence of a transition metal catalyst to form an intermediate having an olefin-based polymer block, reacting the intermediate styrene-based monomer in the presence of an alkyllithium compound to form a product having a styrene-based polymer block, and reacting the product with water, oxygen, or an organic acid to form a block copolymer wherein the number of moles of the alkyllithium compound used to form the product is larger than the number of moles of the organic zinc compound used to form the intermediate.Type: ApplicationFiled: March 29, 2019Publication date: January 7, 2021Applicant: LG Chem, Ltd.Inventors: Seok Pil Sa, Eun Ji Shin, Yoon Ki Hong, Hyun Mo Lee, Ki Soo Lee, Bun Yeoul Lee