Patents by Inventor Young-Jae Hur
Young-Jae Hur 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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Patent number: 11931720Abstract: The present invention relates to superabsorbent polymer and a method for preparing the same. According to the method for preparing superabsorbent polymer of the present invention, superabsorbent polymer having improved rewet property and absorption speed can be provided.Type: GrantFiled: November 28, 2018Date of Patent: March 19, 2024Assignee: LG Chem, Ltd.Inventors: Young Jae Hur, Dae Woo Nam, Bohee Park, Seongbeom Heo
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Patent number: 11918978Abstract: Provided is a method of preparing a superabsorbent polymer. More specifically, provided is a method of preparing a superabsorbent polymer capable of exhibiting improved initial absorbency and a rapid absorption rate by polymerizing monomers having acidic groups, of which part is neutralized with a basic material including potassium hydroxide, in the presence of an encapsulated foaming agent.Type: GrantFiled: December 10, 2019Date of Patent: March 5, 2024Assignee: LG Chem, Ltd.Inventors: Seul Ah Lee, Gicheul Kim, Dae Woo Nam, Ki Hyun Kim, Jun Kyu Kim, Young Jae Hur
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Publication number: 20230149897Abstract: The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, it relates to a method for preparing a super absorbent polymer capable of preparing a super absorbent polymer in which the residual monomer content and the extractable content are simultaneously reduced by adding a reducing agent capable of a redox reaction with a thermal polymerization initiator before drying the hydrogel polymer.Type: ApplicationFiled: January 14, 2022Publication date: May 18, 2023Applicant: LG CHEM, LTD.Inventors: Hyungki YOON, Young Jae HUR, Jin Hyuck JU, Taebin AHN, Dong Hoon PARK, Kwangin SHIN, Jae Soon KIM
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Patent number: 11613613Abstract: The present invention relates to superabsorbent polymer and a method for preparing the same. The present invention can provide a superabsorbent polymer in which a hydrophobic material having an HLB of 0-6, a hydrophilic polymer and a surface cross-linking agent are mixed into a base resin, thereby having improved rewetting characteristics and permeability through surface-modification of the base resin.Type: GrantFiled: November 29, 2018Date of Patent: March 28, 2023Inventors: Bohee Park, Dae Woo Nam, Young Jae Hur, Yeon Woo Hong, Jiyoon Jeong
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Patent number: 11466131Abstract: Provided are a superabsorbent polymer and a preparation method thereof, including preparing a base resin and conducting surface modification of the base resin in the presence of an inorganic filler. The method of preparing the superabsorbent polymer of the present invention may provide a superabsorbent polymer having improved rewetting property and liquid permeability.Type: GrantFiled: September 17, 2019Date of Patent: October 11, 2022Inventors: Young Jae Hur, Dae Woo Nam, Bohee Park, Sujin Kim
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Patent number: 11370856Abstract: The present invention relates to super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and preparation method for the same of the present invention, super absorbent polymer having improved rewet property and vortex time can be provided.Type: GrantFiled: March 20, 2019Date of Patent: June 28, 2022Inventors: Dae Woo Nam, Ki Hyun Kim, Jun Kyu Kim, Young Jae Hur
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Publication number: 20220098373Abstract: A method of preparing a superabsorbent polymer includes preparing a base resin in which an acrylic acid-based monomer having acidic groups which are at least partially neutralized and an internal crosslinking agent are crosslinked in the presence of a sodium polycarboxylate surfactant; and heating the base resin in the presence of a surface crosslinking agent to carry out surface modification of the base resin, wherein the internal crosslinking agent includes a first epoxy crosslinking agent having an epoxy equivalent weight of 100 g/eq or more to less than 130 g/eq, and a second epoxy crosslinking agent having an epoxy equivalent weight of 130 g/eq or more. The superabsorbent polymer provides improved rewetting property and liquid permeability.Type: ApplicationFiled: September 16, 2020Publication date: March 31, 2022Applicant: LG Chem, Ltd.Inventors: Dong Hoon Park, Young Jae Hur, Taebin Ahn, Jihye Ryu
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Publication number: 20220080387Abstract: A method of preparing a superabsorbent polymer includes preparing a base resin in which an acrylic acid-based monomer having acidic groups which are at least partially neutralized and an internal crosslinking agent are crosslinked; and heating the base resin in the presence of a surface crosslinking agent to carry out surface modification of the base resin, wherein the internal crosslinking agent includes a first epoxy crosslinking agent having an epoxy equivalent weight of 100 g/eq or more to less than 130 g/eq, and a second epoxy crosslinking agent having an epoxy equivalent weight of 130 g/eq or more. A superabsorbent polymer having improved rewetting property liquid permeability is also provided.Type: ApplicationFiled: September 16, 2020Publication date: March 17, 2022Applicant: LG Chem, Ltd.Inventors: Young Jae Hur, Taebin Ahn, Dong Hoon Park, Jihye Ryu
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Publication number: 20210147640Abstract: Provided are a superabsorbent polymer and a preparation method thereof, including preparing a base resin and conducting surface modification of the base resin in the presence of an inorganic filler. The method of preparing the superabsorbent polymer of the present invention may provide a superabsorbent polymer having improved rewetting property and liquid permeability.Type: ApplicationFiled: September 17, 2019Publication date: May 20, 2021Applicant: LG Chem, Ltd.Inventors: Young Jae Hur, Dae Woo Nam, Bohee Park, Sujin Kim
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Publication number: 20210113989Abstract: The present invention relates to superabsorbent polymer and a method for preparing the same. According to the method for preparing superabsorbent polymer of the present invention, superabsorbent polymer having improved rewet property and absorption speed can be provided.Type: ApplicationFiled: November 28, 2018Publication date: April 22, 2021Applicant: LG Chem, Ltd.Inventors: Young Jae Hur, Dae Woo Nam, Bohee Park, Seongbeom Heo
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Patent number: 10960102Abstract: A superabsorbent polymer which has excellent initial absorbency and keeps water from flowing out under pressure even after the passage of a long period of time, in which the superabsorbent polymer keeps water from flowing out under pressure even after the passage of a long period of time to exhibit excellent absorbency, and also has an anti-caking property under conditions of high temperature and high humidity to improve storage stability, is provided. The superabsorbent polymer composition of the present invention may be used to improve physical properties of a variety of diapers, potty training pants, incontinence pads, etc., thereby being applied to production of personal absorbent hygiene products having high absorbency and excellent storage stability under conditions of high temperature and high humidity.Type: GrantFiled: December 11, 2014Date of Patent: March 30, 2021Inventors: Wook Hwan Noh, Jun Kyu Kim, Jong Hyuk Kwon, Young Jae Hur, Ki Han Kim
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Publication number: 20210023529Abstract: Provided is a method of preparing a superabsorbent polymer. More specifically, provided is a method of preparing a superabsorbent polymer capable of exhibiting improved initial absorbency and a rapid absorption rate by polymerizing monomers having acidic groups, of which part is neutralized with a basic material including potassium hydroxide, in the presence of an encapsulated foaming agent.Type: ApplicationFiled: December 10, 2019Publication date: January 28, 2021Applicant: LG Chem, Ltd.Inventors: Seul Ah Lee, Gicheul Kim, Dae Woo Nam, Ki Hyun Kim, Jun Kyu Kim, Young Jae Hur
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Publication number: 20210009725Abstract: The present invention relates to super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and preparation method for the same of the present invention, super absorbent polymer having improved rewet property and vortex time can be provided.Type: ApplicationFiled: March 20, 2019Publication date: January 14, 2021Applicant: LG Chem, Ltd.Inventors: Dae Woo Nam, Ki Hyun Kim, Jun Kyu Kim, Young Jae Hur
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Publication number: 20200308352Abstract: The present invention relates to superabsorbent polymer and a method for preparing the same. The present invention can provide a superabsorbent polymer in which a hydrophobic material having an HLB of 0-6, a hydrophilic polymer and a surface cross-linking agent are mixed into a base resin, thereby having improved rewetting characteristics and permeability through surface-modification of the base resin.Type: ApplicationFiled: November 29, 2018Publication date: October 1, 2020Applicant: LG Chem, Ltd.Inventors: Bohee Park, Dae Woo Nam, Young Jae Hur, Yeon Woo Hong, Jiyoon Jeong
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Patent number: 9808786Abstract: A method of preparing a superabsorbent polymer is provided, which is able to improve physical properties and to recycle fine powder generated during the preparation process. Particularly, a method of preparing a superabsorbent polymer capable of improving physical properties by using a base resin including a water-containing gel polymer and a base-treated fine powder regranulated body, which are different from each other in degree of neutralization, during preparation of the superabsorbent polymer, is provided.Type: GrantFiled: September 12, 2014Date of Patent: November 7, 2017Assignee: LG Chem, Ltd.Inventors: Tae Young Won, Jin Hyun Bae, Jun Kyu Kim, Jong Hyuk Kwon, Young Jae Hur, Yun Kim
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Patent number: 9539294Abstract: A composition includes an isolated bacteriophage Str-PAP-1 having the ability to kill Streptococcus parauberis cells specifically by infecting the same, and may be used to prevent and treat Streptococcus parauberis infections. The bacteriophage Str-PAP-1 that is an active ingredient of the composition has the ability to kill Streptococcus parauberis cells and characteristically has the genome represented by nucleotide sequence of SEQ. ID. NO: 1.Type: GrantFiled: April 28, 2015Date of Patent: January 10, 2017Assignee: INTRON BIOTECHNOLOGY, INC.Inventors: Seong Jun Yoon, Soo Youn Jun, An Sung Kwon, Young Jae Hur, Jung Mi Kim, Sang Hyeon Kang
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Publication number: 20160235882Abstract: A superabsorbent polymer which has excellent initial absorbency and keeps water from flowing out under pressure even after the passage of a long period of time, in which the superabsorbent polymer keeps water from flowing out under pressure even after the passage of a long period of time to exhibit excellent absorbency, and also has an anti-caking property under conditions of high temperature and high humidity to improve storage stability, is provided. The superabsorbent polymer composition of the present invention may be used to improve physical properties of a variety of diapers, potty training pants, incontinence pads, etc., thereby being applied to production of personal absorbent hygiene products having high absorbency and excellent storage stability under conditions of high temperature and high humidity.Type: ApplicationFiled: December 11, 2014Publication date: August 18, 2016Applicant: LG Chem, Ltd.Inventors: Wook Hwan Noh, Jun Kyu Kim, Jong Hyuk Kwon, Young Jae Hur, Ki Han Kim
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Publication number: 20160045895Abstract: A method of preparing a superabsorbent polymer is provided, which is able to improve physical properties and to recycle fine powder generated during the preparation process. Particularly, a method of preparing a superabsorbent polymer capable of improving physical properties by using a base resin including a water-containing gel polymer and a base-treated fine powder regranulated body, which are different from each other in degree of neutralization, during preparation of the superabsorbent polymer, is provided.Type: ApplicationFiled: September 12, 2014Publication date: February 18, 2016Applicant: LG CHEM, LTD.Inventors: Tae Young Won, Jin Hyun Bae, Jun Kyu Kim, Jong Hyuk Kwon, Young Jae Hur, Yun Kim
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Publication number: 20150306159Abstract: A composition includes an isolated bacteriophage Str-PAP-1 having the ability to kill Streptococcus parauberis cells specifically by infecting the same, and may be used to prevent and treat Streptococcus parauberis infections. The bacteriophage Str-PAP-1 that is an active ingredient of the composition has the ability to kill Streptococcus parauberis cells and characteristically has the genome represented by nucleotide sequence of SEQ. ID. NO: 1.Type: ApplicationFiled: April 28, 2015Publication date: October 29, 2015Inventors: Seong Jun Yoon, Soo Youn Jun, An Sung Kwon, Young Jae Hur, Jung Mi Kim, Sang Hyeon Kang
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Patent number: 8507620Abstract: The present invention relates to a process for preparing a water absorbent resin, particularly to a process for preparing a water absorbent resin which can resolve the uneven size of the fine pulverized gel-type resin and long pulverizing time those are the problems of prior process for preparing the water absorbent resin, by carrying out the pulverizing process of the gel-type resin divided into the coarse pulverizing process which is carried out with the internal cross-linking polymerization, and the fine pulverizing process. According to the preparation process, it is possible to mass-produce the water absorbent resin showing excellent absorption under pressure and low extractable content.Type: GrantFiled: June 7, 2011Date of Patent: August 13, 2013Assignee: LG Display Co., Ltd.Inventors: Jun-Kyu Kim, Jong-Hyuk Kwon, Young-Jae Hur, Yun-Kyung Do