Patents by Inventor Jung Ho Kong
Jung Ho Kong 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: 9902817Abstract: Disclosed herein is a polyvinyl chloride resin, including: a first particle group having a particle diameter of 0.01 ?m or more and less than 1 ?m; and a second particle group having a particle diameter of 1 to 10 ?m, wherein the volume ratio of the first particle group to the second particle group is 1:0.4 to 1:1.Type: GrantFiled: November 1, 2013Date of Patent: February 27, 2018Assignee: Hanwha Chemical CorporationInventors: Jeong Hwan Ko, Jung Ho Kong, Ji Eun Namgoong
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Patent number: 9738528Abstract: There are provided a graphene having an oxygen atom content in a predetermined range or less and a carbon/oxygen weight ratio in a specific range to show excellent electrical and thermal conductivity properties, and a barrier property, and a method and an apparatus for preparing the graphene having excellent electrical and thermal conductivity properties and a barrier property by using a subcritical-state fluid or a supercritical-state fluid. According to the method and the apparatus for preparing the graphene, impurities such as graphene oxide, and the like, may be effectively removed, such that uniformity of the graphene to be prepared may be increased, and therefore, the graphene which is highly applicable as materials throughout the industry may be mass-produced.Type: GrantFiled: August 20, 2014Date of Patent: August 22, 2017Assignee: HANWHA CHEMICAL CORPORATIONInventors: Jin Seo Lee, Seung Hoe Do, Seong Yun Jeon, Jung Ho Kong
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Patent number: 9611149Abstract: There are a method and an apparatus for modifying a graphene, and more specifically, a method and an apparatus for modifying a graphene capable of obtaining the graphene having a desired crystallite size by repeating a process for modifying the graphene using subcritical or supercritical carbon dioxide several times. According to the method and the apparatus for modifying the graphene of the present invention, the graphene having excellent electrical conductivity and dispersibility may be obtained.Type: GrantFiled: August 21, 2014Date of Patent: April 4, 2017Assignee: HANWHA CHEMICAL CORPORATIONInventors: Seung Hoe Do, Jin Seo Lee, Seong Yun Jeon, Jung Ho Kong
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Patent number: 9598519Abstract: The present invention relates to a resin for a blister package and a preparation method thereof. The resin for a blister package according to the present invention is a water-soluble resin which can minimize a hazard to a human body due to residual of a solvent, and particularly, a resin layer formed by using the resin can show an excellent heat seal property and is hardly deformed at the heat seal temperature condition.Type: GrantFiled: December 17, 2013Date of Patent: March 21, 2017Assignee: Hanwha Chemical CorporationInventors: Jeong Hyun Choi, Sin-Won Kang, Jung Ho Kong, Sang Hyun Cho
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Publication number: 20160272583Abstract: There are provided a method and an apparatus for preparing a functionalized graphene, and a functionalized graphene, and more specifically, a method and an apparatus for preparing a functionalized graphene having excellent electrical and thermal conductivity properties, and a barrier property, using a fluid in a subcritical condition or a supercritical condition and a functional compound, and a functionalized graphene.Type: ApplicationFiled: November 19, 2014Publication date: September 22, 2016Inventors: Jin Seo LEE, Seung-Hoe DO, Seong Yun JEON, Gi Woo HAN, Jung Ho KONG
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Publication number: 20160200581Abstract: There are provided a graphene having an oxygen atom content in a predetermined range or less and a carbon/oxygen weight ratio in a specific range to show excellent electrical and thermal conductivity properties, and a barrier property, and a method and an apparatus for preparing the graphene having excellent electrical and thermal conductivity properties and a barrier property by using a subcritical-state fluid or a supercritical-state fluid. According to the method and the apparatus for preparing the graphene, impurities such as graphene oxide, and the like, may be effectively removed, such that uniformity of the graphene to be prepared may be increased, and therefore, the graphene which is highly applicable as materials throughout the industry may be mass-produced.Type: ApplicationFiled: August 20, 2014Publication date: July 14, 2016Inventors: Jin Seo LEE, Seung Hoe DO, Seong Yun JEON, Jung Ho KONG
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Publication number: 20160176714Abstract: There are a method and an apparatus for modifying a graphene, and more specifically, a method and an apparatus for modifying a graphene capable of obtaining the graphene having a desired crystallite size by repeating a process for modifying the graphene using subcritical or supercritical carbon dioxide several times. According to the method and the apparatus for modifying the graphene of the present invention, the graphene having excellent electrical conductivity and dispersibility may be obtained.Type: ApplicationFiled: August 21, 2014Publication date: June 23, 2016Inventors: Seung Hoe DO, Jin Seo LEE, Seong Yun JEON, Jung Ho KONG
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Publication number: 20150361202Abstract: The present invention relates to a resin for a blister package and a preparation method thereof. The resin for a blister package according to the present invention is a water-soluble resin which can minimize a hazard to a human body due to residual of a solvent, and particularly, a resin layer formed by using the resin can show an excellent heat seal property and is hardly deformed at the heat seal temperature condition.Type: ApplicationFiled: December 17, 2013Publication date: December 17, 2015Applicant: HANWHA CHEMICAL CORPORATIONInventors: Jeong Hyun Choi, Sin-Won Kang, Jung Ho Kong, Sang Hyun Cho
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Publication number: 20150274901Abstract: Disclosed herein is a polyvinyl chloride resin, including: a first particle group having a particle diameter of 0.01 ?m or more and less than 1 ?m; and a second particle group having a particle diameter of 1 to 10 ?m, wherein the volume ratio of the first particle group to the second particle group is 1:0.4 to 1:1.Type: ApplicationFiled: November 1, 2013Publication date: October 1, 2015Applicant: Hanwha Chemical CorporationInventors: Jeong Hwan Ko, Jung Ho Kong, Ji Eun Namgoong
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Patent number: 8916650Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.Type: GrantFiled: July 16, 2013Date of Patent: December 23, 2014Assignee: Hanwha Chemical CorporationInventors: Ji-Woo Kim, Jee-Hyong Lee, Jung-Ho Kong, Yong-Kook Jung, Sang-Hyun Cho
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Publication number: 20140275425Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.Type: ApplicationFiled: July 16, 2013Publication date: September 18, 2014Applicant: HANWHA CHEMICAL CORPORATIONInventors: Ji-Woo Kim, Jee-Hyong Lee, Jung-Ho Kong, Yong-Kook Jung, Sang-Hyun Cho
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Publication number: 20090247678Abstract: The present invention relates to a tree resistant, cross-linkable polyolefin resin composition for insulation capable of improving electric properties of an insulator of the high voltage power cable and thus improving a long-life stability of an underground distribution cable as having a more superior resistance to water tree deterioration caused by moisture, superior thermal-oxidative stability, superior scorch resistance when extruding as well as obtaining a proper cross-linking degree when cross-linking.Type: ApplicationFiled: April 20, 2007Publication date: October 1, 2009Applicant: HANWHA CHEMICAL CORPORATIONInventors: Seung Hyung Lee, Han Shin Lee, Jung Ho Kong, Ki Sik Kim
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Patent number: 7290338Abstract: Disclosed are an electric pole manufacturing apparatus having an improved distal end, capable of reducing the cost, arranging tensile cores corresponding to a design load, and providing a high quality electric pole, and a method of manufacturing the electric pole.Type: GrantFiled: March 13, 2003Date of Patent: November 6, 2007Assignee: Hammtek Asia, Inc.Inventors: Seung Soo Kim, Jung Ho Kong