Patents by Inventor Jong Yeob Jeon
Jong Yeob Jeon 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: 20210380771Abstract: Ion exchange membranes for use in electrochemical energy conversion and storage applications include copolymers having a backbone produced from an olefin, such as ethylene, and a cyclic olefin, such as norbornene. Haloalkyl side chains with terminal halide groups are connected to the polymer backbone via Friedel-Crafts alkylation. The halide groups are then replaced with ionic groups via substitution. The ion exchange membrane material can then be cast or impregnated into a reinforcing mesh to form cation exchange membrane or anion exchange membranes. Rigidity of the ion exchange membranes can be controlled by varying the ratio of olefin to cyclic olefin in the polymer backbone.Type: ApplicationFiled: October 7, 2019Publication date: December 9, 2021Applicant: RENSSELAER POLYTECHNIC INSTITUTEInventors: Chulsung BAE, Jong Yeob JEON
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Publication number: 20210108067Abstract: An ion exchange membrane material is composed of a crosslinked polymer network including a first poly(styrene-b-ethylene-r-butylene-b-styrene) triblock copolymer (SEBS), and second SEBS, and a linker crosslinking the first SEBS and the second SEBS. At least one phenyl group from the first SEBS and the second SEBS is functionalized with an alkyl group, and the carbon at the benzylic position of these alkyl groups is saturated with at least two additional alkyl groups. The linker is a diamine bound to the alkyl functional groups. The ion exchange membrane material is made via a substantially simultaneous quaternization and crosslinking reaction between the diamine linker and SEBS functionalized with alkyl halide groups. Increasing concentration of crosslinker in produces membranes with reduced water uptake, leading to an expectation of enhanced stability under hydrated conditions and greater durability. Advantageously, this reduction in water uptake came with little change to ion exchange capacity.Type: ApplicationFiled: April 24, 2019Publication date: April 15, 2021Inventors: Chulsung Bae, Jong Yeob Jeon, Junyoung Han, Sangtaik Noh
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Patent number: 10875818Abstract: Disclosed herein are a chromium compound represented by Formula 1a or 1c and a catalyst system including the same, exhibiting superior catalytic activity in an olefin trimerization reaction: [{CH3(CH2)3CH(CH2CH3)CO2}2Cr(OH)]??[Formula 1a] [{CH3(CH2)3CH(CH2CH3)CO2}2Cr(OH)]4.2H2O.Type: GrantFiled: August 22, 2019Date of Patent: December 29, 2020Assignees: AJOU UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION, S-PRECIOUS CATALYSTS INC.Inventors: Bun Yeoul Lee, Jong Yeob Jeon, Dong Sik Park
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Patent number: 10793671Abstract: Provided is an aliphatic polycarbonate macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate macropolyol, the repeating units —OAO— and Z(O—)a are linked to each other via carbonyl (—C(O)—) linkers or are bonded to hydrogen to form terminal —OH groups. The number of moles of the terminal —OH groups is from aZ to aZ+0.2Z (where Z represents the number of moles of the repeating unit Z(O—)a). Further provided is an aliphatic polycarbonate-co-aromatic polyester macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate-co-aromatic polyester macropolyol, the repeating units —OAO— and Z(O—)a are linked via carbonyl (—C(O)—) and —C(O)YC(O)— as linkers or are bonded to hydrogen to form terminal —OH groups.Type: GrantFiled: February 8, 2018Date of Patent: October 6, 2020Assignee: LOTTE CHEMICAL CORPORATIONInventors: Bun Yeoul Lee, Jong Yeob Jeon, Ji Hae Park, Jung Jae Lee, Eun Yeong Hwang
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Publication number: 20200238272Abstract: The electrochemical energy conversion system of the present disclosure includes an anode, a cathode, and an ion exchange membrane including a polymer having an aromatic polymer chain and an alkylated substrate including an alkyl chain, and at least one ionic group. The alkylated substrate is bound to at least one aromatic group in the polymer chain via Friedel-Crafts alkylation of the at least one aromatic group. The alkylation reaction utilizes a haloalkylated tertiary alcohol or a haloalkylated alkene as a precursor. In the presence of an acid catalyst, a carbocation is generated in the precursor which reacts with the aromatic rings of the polymer chain. The at least one ionic group is then replaced with a desired cationic or anionic group using a substitution reaction. The membranes exhibit advantageous stability achieved through a simplified and scalable reaction scheme.Type: ApplicationFiled: April 7, 2020Publication date: July 30, 2020Applicant: RENSSELAER POLYTECHNIC INSTITUTEInventors: Chulsung BAE, Jong Yeob JEON
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Publication number: 20200223997Abstract: The electrochemical energy conversion system of the present disclosure includes an anode, a cathode, and an ion exchange membrane including a polymer having an aromatic polymer chain and an alkylated substrate including an alkyl chain, and at least one ionic group. The alkylated substrate is bound to at least one aromatic group in the polymer chain via Friedel-Crafts alkylation of the at least one aromatic group. The alkylation reaction utilizes a haloalkylated tertiary alcohol or a haloalkylated alkene as a precursor. In the presence of an acid catalyst, a carbocation is generated in the precursor which reacts with the aromatic rings of the polymer chain. The at least one ionic group is then replaced with a desired cationic or anionic group using a substitution reaction. The membranes exhibit advantageous stability achieved through a simplified and scalable reaction scheme.Type: ApplicationFiled: July 5, 2018Publication date: July 16, 2020Applicant: RENSSELAER POLYTECHNIC INSTITUTEInventors: Chulsung BAE, Jong Yeob JEON
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Patent number: 10577448Abstract: The present invention relates to an organic zinc compound comprising a styrene-based polymer or a polyolefin-polystyrene block copolymer at both ends. Also, the present invention relates to a method for preparing the organic zinc compound, the method preparing an intermediate by coordination-polymerizing an olefin monomer using a transition metal catalyst, and then performing anionic polymerization by inserting an alkyllithium compound, an amine ligand, and a styrene-based monomer into the intermediate. Accordingly, the present invention can provide a method for preparing a commercially useful styrene-based polymer or polyolefin-polystyrene block copolymer directly from an olefin monomer and a styrene monomer in a one-pot manner.Type: GrantFiled: January 21, 2016Date of Patent: March 3, 2020Assignee: LG Chem, Ltd.Inventors: Bun Yeoul Lee, Jong Yeob Jeon, Geun Ho Park
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Publication number: 20200039897Abstract: Disclosed herein are a chromium compound represented by Formula 1a or 1c and a catalyst system including the same, exhibiting superior catalytic activity in an olefin trimerization reaction: [{CH3(CH2)3CH(CH2CH3)CO2}2Cr(OH)]??[Formula 1a] [{CH3(CH2)3CH(CH2CH3)CO2}2Cr(OH)]4.2H2O.Type: ApplicationFiled: August 22, 2019Publication date: February 6, 2020Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Bun Yeoul LEE, Jong Yeob JEON, Dong Sik PARK
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Patent number: 10442741Abstract: Disclosed herein are a chromium compound represented by Formula 1a or 1b and a catalyst system including the same, exhibiting superior catalytic activity in an olefin trimerization reaction: [{CH3(CH2)3CH(CH2CH3)CO2}2Cr(OH)]??[Formula 1a] [{CH3CH2CH(CH2CH3)CO2}2Cr(OH)].Type: GrantFiled: March 4, 2015Date of Patent: October 15, 2019Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Bun Yeoul Lee, Jong Yeob Jeon, Dong Sik Park
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Publication number: 20180186929Abstract: Provided is an aliphatic polycarbonate macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate macropolyol, the repeating units —OAO— and Z(O—)a are linked to each other via carbonyl (—C(O)—) linkers or are bonded to hydrogen to form terminal —OH groups. The number of moles of the terminal —OH groups is from aZ to aZ+0.2 Z (where Z represents the number of moles of the repeating unit Z(O—)a). Further provided is an aliphatic polycarbonate-co-aromatic polyester macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate-co-aromatic polyester macropolyol, the repeating units —OAO— and Z(O—)a are linked via carbonyl (—C(O)—) and —C(O)YC(O)— as linkers or are bonded to hydrogen to form terminal —OH groups.Type: ApplicationFiled: February 8, 2018Publication date: July 5, 2018Inventors: Bun Yeoul Lee, Jong Yeob Jeon, Ji Hae Park, Jung Jae Lee, Eun Yeong Hwang
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Publication number: 20180179333Abstract: Provided is an aliphatic polycarbonate macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate macropolyol, the repeating units —OAO— and Z(O—)a are linked to each other via carbonyl (—C(O)—) linkers or are bonded to hydrogen to form terminal —OH groups. The number of moles of the terminal —OH groups is from aZ to aZ+0.2Z (where Z represents the number of moles of the repeating unit Z(O—)a). Further provided is an aliphatic polycarbonate-co-aromatic polyester macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate-co-aromatic polyester macropolyol, the repeating units —OAO— and Z(O—)a are linked via carbonyl (—C(O)—) and —C(O)YC(O)— as linkers or are bonded to hydrogen to form terminal —OH groups.Type: ApplicationFiled: February 8, 2018Publication date: June 28, 2018Inventors: Bun Yeoul Lee, Jong Yeob Jeon, Ji Hae Park, Jung Jae Lee, Eun Yeong Hwang
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Patent number: 9975990Abstract: Provided is an aliphatic polycarbonate-co-aromatic polyester with long-chain branches. The copolymer includes repeating units represented by —OAO— and Z(O—)a, which are linked via carbonyl (—C(O)—) and —C(O)YC(O)— as linkers. Also provided is an aliphatic copolycarbonate including repeating units represented by —OAO— and Z(O—)a, which are linked via carbonyl (—C(O)—) linkers. The aliphatic copolycarbonate has a weight average molecular weight of 30,000 or more.Type: GrantFiled: October 29, 2014Date of Patent: May 22, 2018Assignee: LOTTE CHEMICAL CORPORATIONInventors: Bun Yeoul Lee, Jung Jae Lee, Eun Yeong Hwang, Jong Yeob Jeon, Seong Chan Eo
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Publication number: 20180022852Abstract: The present invention relates to an organic zinc compound comprising a styrene-based polymer or a polyolefin-polystyrene block copolymer at both ends. Also, the present invention relates to a method for preparing the organic zinc compound, the method preparing an intermediate by coordination-polymerizing an olefin monomer using a transition metal catalyst, and then performing anionic polymerization by inserting an alkyllithium compound, an amine ligand, and a styrene-based monomer into the intermediate. Accordingly, the present invention can provide a method for preparing a commercially useful styrene-based polymer or polyolefin-polystyrene block copolymer directly from an olefin monomer and a styrene monomer in a one-pot manner.Type: ApplicationFiled: January 21, 2016Publication date: January 25, 2018Applicant: LG Chem, Ltd.Inventors: Bun Yeoul Lee, Jong Yeob Jeon, Geun Ho Park
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Publication number: 20170217854Abstract: Disclosed herein are a chromium compound represented by Formula 1a or 1b and a catalyst system including the same, exhibiting superior catalytic activity in an olefin trimerization reaction: [{CH3(CH2)3CH(CH2CH3)CO2}2Cr(OH)]??[Formula 1a] [{CH3CH2CH(CH2CH3)CO2}2Cr(OH)]??[Formula 1b].Type: ApplicationFiled: March 4, 2015Publication date: August 3, 2017Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Bun Yeoul LEE, Jong Yeob JEON, Dong Sik PARK
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Patent number: 9475905Abstract: An aliphatic polycarbonate is disclosed in which a salt consisting of a metal or onium cation and an anion having a pKa not greater than 3 is dispersed. The aliphatic polycarbonate includes repeating units of Formula 1: [-A-OC(O)O-] (wherein A is a substituted or unsubstituted C3-C60 alkylene, or a substituted or unsubstituted C3-C60 heteroalkylene and the O-A-O units in one polymer chain may be identical to or different from each other).Type: GrantFiled: May 28, 2013Date of Patent: October 25, 2016Assignee: LOTTE CHEMICAL CORPORATIONInventors: Bun Yeoul Lee, Ji Hae Park, Jong Yeob Jeon, Jung Jae Lee, Young Eun Jang
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Patent number: 9447234Abstract: Provided is an aliphatic polycarbonate copolymer including repeating units of Formula 1 described in the specification. In Formula 1, A is a substituted or unsubstituted C3-C60 alkylene or a substituted or unsubstituted C3-C60 heteroalkylene and the O-A-O units in one polymer chain may be identical to or different from each other, B is a substituted or unsubstituted C5-C20 arylene or a substituted or unsubstituted C5-C20 heteroarylene and the —C(O)—B—C(O)— units in one polymer chain may be identical to or different from each other, and x and y are real numbers representing mole fractions.Type: GrantFiled: May 28, 2013Date of Patent: September 20, 2016Assignee: LOTTE CHEMICAL CORPORATIONInventors: Bun Yeoul Lee, Jong Yeob Jeon, Jung Jae Lee, Ji Hae Park
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Publication number: 20160251475Abstract: Provided is an aliphatic polycarbonate-co-aromatic polyester with long-chain branches. The copolymer includes repeating units represented by —OAO— and Z(O—)a, which are linked via carbonyl (—C(O)—) and —C(O)YC(O)— as linkers. Also provided is an aliphatic copolycarbonate including repeating units represented by —OAO— and Z(O—)a, which are linked via carbonyl (—C(O)—) linkers. The aliphatic copolycarbonate has a weight average molecular weight of 30,000 or more.Type: ApplicationFiled: October 29, 2014Publication date: September 1, 2016Applicant: LOTTE CHEMICAL CORPORATIONInventors: Bun Yeoul LEE, Jung Jae Lee, Eun Yeong HWANG, Jong Yeob JEON, Seong Chan EO
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Publication number: 20160177027Abstract: Provided is an aliphatic polycarbonate macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate macropolyol, the repeating units —OAO— and Z(O—)a are linked to each other via carbonyl (—C(O)—) linkers or are bonded to hydrogen to form terminal —OH groups. The number of moles of the terminal —OH groups is from aZ to aZ+0.2Z (where Z represents the number of moles of the repeating unit Z(O—)a). Further provided is an aliphatic polycarbonate-co-aromatic polyester macropolyol including —OAO— and Z(O—)a as repeating units. In the aliphatic polycarbonate-co-aromatic polyester macropolyol, the repeating units —OAO— and Z(O—)a are linked via carbonyl (—C(O)—) and —C(O)YC(O)— as linkers or are bonded to hydrogen to form terminal —OH groups.Type: ApplicationFiled: October 16, 2013Publication date: June 23, 2016Inventors: Bun Yeoul LEE, Jong Yeob JEON, Ji Hae PARK, Jung Jae LEE, Eun Yeong HWANG
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Publication number: 20150353678Abstract: An aliphatic polycarbonate is disclosed in which a salt consisting of a metal or onium cation and an anion having a pKa not greater than 3 is dispersed. The aliphatic polycarbonate includes repeating units of Formula 1: [-A-OC(O)O-] (wherein A is a substituted or unsubstituted C3-C60 alkylene, or a substituted or unsubstituted C3-C60 heteroalkylene and the O-A-O units in one polymer chain may be identical to or different from each other).Type: ApplicationFiled: May 28, 2013Publication date: December 10, 2015Applicant: LOTTE CHEMICAL CORPORATIONInventors: Bun Yeoul LEE, Ji Hae PARK, Jong Yeob JEON, Jung Jae LEE, Young Eun JANG
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Publication number: 20150291735Abstract: Provided is an aliphatic polycarbonate copolymer including repeating units of Formula 1 described in the specification. In Formula 1, A is a substituted or unsubstituted C3-C60 alkylene or a substituted or unsubstituted C3-C60 heteroalkylene and the O-A-O units in one polymer chain may be identical to or different from each other, B is a substituted or unsubstituted C5-C20 arylene or a substituted or unsubstituted C5-C20 heteroarylene and the —C(O)—B—C(O)— units in one polymer chain may be identical to or different from each other, and x and y are real numbers representing mole fractions.Type: ApplicationFiled: May 28, 2013Publication date: October 15, 2015Inventors: Bun Yeoul Lee, Jong Yeob Jeon, Jung Jae Lee, Ji Hae Park