Patents by Inventor Houng Sik YOO
Houng Sik YOO 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: 9493644Abstract: Provided are a resin blend, which includes a first resin, and a second resin having hydrogen-binding donor and acceptor, and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m, and is formed in a layer-separated structure, a pellet, a method of manufacturing the same, and a resin molded article having a specific layer-separated structure. Because of the resin blend, a molded article may have enhanced mechanical properties and surface hardness, and additional surface coating may be omitted, thereby reducing a processing time, increasing productivity, and reducing production costs.Type: GrantFiled: May 23, 2014Date of Patent: November 15, 2016Assignee: LG Chem, Ltd.Inventors: Houng Sik Yoo, Han Na Lee, Jin Young Ryu, Hyeon Choi, Woo Sung Kim, Eun Joo Choi
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Patent number: 9481149Abstract: Provided is a resin article produced by melt processing and having layers formed by a layer-separation. The resin article may include a first resin layer, a second resin layer formed on the first resin layer and an interface layer including a first resin and a second resin and formed between the first resin layer and the second resin layer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: GrantFiled: November 28, 2012Date of Patent: November 1, 2016Assignee: LG CHEM, LTD.Inventors: Houng Sik Yoo, Hak Shin Kim, Jin Young Ryu, Chong Kyu Shin, Young Jun Hong, Jeong Min Kim, Eun Joo Choi
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Publication number: 20160194426Abstract: Provided are a resin, a method of preparing the resin, a resin blend including the resin, a pellet, a method of preparing a resin article using the resin blend and the pellet, and the resin article. An exemplary resin in the present invention may provide a resin article of which a surface has improved mechanical characteristics and surface hardness. Further, the use of the resin enables the resin article to exhibit the above-described effects without an additional coating process for a surface of the resin article, thereby leading to a decrease in manufacturing time and cost and to an increase in productivity.Type: ApplicationFiled: August 1, 2014Publication date: July 7, 2016Inventors: Houng Sik YOO, Jin Young RYU, Eun Joo CHOI, Jong Won LEE, Hyeon CHOI
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Patent number: 9340058Abstract: The present invention relates to a blanket for offset printing and a manufacturing method thereof. The blanket for offset printing according to an exemplary embodiment of the present invention comprises a cushion layer, a support layer, and at least two surface printing layers, wherein the at least two surface printing layers comprise a silicon-based resin in which at least one of a hardness value, a fluorine group content value, and a silicon oil content value is different. The blanket for offset printing according to the exemplary embodiment of the present invention comprises the surface printing layer formed in at least two layers to prevent the surface printing layer from being swollen due to ink, thereby reducing a process waiting time and improving a process margin.Type: GrantFiled: March 18, 2011Date of Patent: May 17, 2016Assignee: LG CHEM, LTD.Inventors: Houng-Sik Yoo, Beom-Mo Koo, Soon-Yeol Lee, Seung-Heon Lee, Jin-Young Park
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Patent number: 9296888Abstract: Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m. The resin blend can improve mechanical and surface characteristics of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: GrantFiled: November 28, 2012Date of Patent: March 29, 2016Assignee: LG CHEM, LTD.Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Young Jun Hong, Chong Kyu Shin, Eun Joo Choi
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Patent number: 9296178Abstract: Provided is a resin article having a layer-separated structure. The resin article may include a first resin layer and a second resin layer formed on the first resin layer. Also, the component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: GrantFiled: November 20, 2013Date of Patent: March 29, 2016Assignee: LG Chem, LTD.Inventors: Houng Sik Yoo, Hak Shin Kim, Jin Young Ryu, Chong Kyu Shin, Young Jun Hong, Jeong Min Kim, Eun Joo Choi
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Patent number: 9243134Abstract: Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s?1 and a processing temperature of the resin blend. The resin blend can improve mechanical and surface characteristics of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: GrantFiled: November 28, 2012Date of Patent: January 26, 2016Assignee: LG CHEM, LTD.Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Young Jun Hong, Chong Kyu Shin, Eun Joo Choi
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Patent number: 9193857Abstract: Provided are a resin blend for forming a layer-separated structure, a pellet, a method of preparing a resin article using the same and a resin article. The resin blend may include a first resin, and a second resin that comprises an acrylic copolymer containing a silica particle and has a molecular weight distribution of 1 to 2.5. The resin blend can improve surface characteristics of a resin article. Also, the resin blend can realize excellent scratch resistance of a resin article. Further, since an additional coating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: GrantFiled: April 12, 2013Date of Patent: November 24, 2015Assignee: LG CHEM, LTD.Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Eun Joo Choi, Young Jun Hong
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Publication number: 20150299450Abstract: Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s?1 and a processing temperature of the resin blend. The resin blend can improve mechanical and surface characteristics of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: ApplicationFiled: June 30, 2015Publication date: October 22, 2015Applicant: LG CHEM, LTD.Inventors: Jin Young RYU, Houng Sik YOO, Hak Shin KIM, Young Jun HONG, Chong Kyu SHIN, Eun Joo CHOI
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Patent number: 9090763Abstract: Provided are a resin blend for forming a layer-separated structure, a pellet, a method of preparing a resin article using the same, and a resin article. The resin blend may include a first resin, and a second resin including a resin to which a fluorine or fluorine-substituted organic functional group is introduced and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m. The resin blend can improve mechanical and surface characteristics of a resin article. Also, the resin blend can realize excellent contamination resistance of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: GrantFiled: November 28, 2012Date of Patent: July 28, 2015Assignee: LG CHEM, LTD.Inventors: Jin Young Ryu, Hak Shin Kim, Houng Sik Yoo, Eun Joo Choi, Young Jun Hong
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Patent number: 9044924Abstract: Provided is a resin article produced by melt processing and having layers formed by a layer-separation. having a layer-separated structure. The resin article may include a first resin layer and a second resin layer formed on the first resin layer. Also, the component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: GrantFiled: November 28, 2012Date of Patent: June 2, 2015Assignee: LG CHEM, LTD.Inventors: Houng Sik Yoo, Hak Shin Kim, Jin Young Ryu, Chong Kyu Shin, Young Jun Hong, Jeong Min Kim, Eun Joo Choi
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Patent number: 9000112Abstract: The present invention relates to a resin mixture for melt processing, comprising a first resin; and a second resin comprising an acrylate-based copolymer including silica particles and having a polydispersity index (PDI) of 1 to 2.5, a method for preparing a resin-molded article using the same, and a resin-molded article. Surface characteristics of the molded article can be improved and excellent scratch resistance can be obtained by using the resin composition. In addition, processing time can be reduced, productivity is increased, and manufacturing costs are lowered by omitting the additional surface coating step.Type: GrantFiled: October 14, 2011Date of Patent: April 7, 2015Assignee: LG Chem, Ltd.Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Eun Joo Choi, Young Jun Hong
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Publication number: 20150025171Abstract: Provided is a resin blend including a first resin and a second resin, the second resin having a hydrophobic functional group in a side chain and having a surface energy difference of 0.1 to 20 mN/m from the first resin at 25° C., wherein the resin blend is capable of forming a layer separation structure. Also, provided are a pellet, a method for preparing the same, and a resin molding article having a specific layer separation structure. The resin blend may not only improve mechanical properties and surface hardness of the molding article but also shorten process time, increase productivity and reduce production cost by omitting an additional surface coating step.Type: ApplicationFiled: October 3, 2014Publication date: January 22, 2015Inventors: Houng Sik YOO, Jin Young RYU, Woo Sung KIM, Han Na LEE, Eun Joo CHOI, Hyeon CHOI
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Patent number: 8883924Abstract: Provided is a resin blend including a first resin and a second resin, the second resin having a hydrophobic functional group in a side chain and having a surface energy difference of 0.1 to 20 mN/m from the first resin at 25° C., the resin blend being capable of forming a layer separation structure. Also, provided are a pellet, a method for preparing the same, and a resin molding article having a specific layer separation structure. The resin blend may not only improve mechanical properties and surface hardness of the molding article but also shorten process time, increase productivity and reduce production cost by omitting an additional surface coating step.Type: GrantFiled: August 12, 2013Date of Patent: November 11, 2014Assignee: LG Chem, Ltd.Inventors: Houng Sik Yoo, Jin Young Ryu, Woo Sung Kim, Han Na Lee, Eun Joo Choi, Hyeon Choi
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Publication number: 20140255700Abstract: Provided are a resin blend including a first resin, and a second resin having a hydrophobic moiety represented by Formula 1 at a main chain and having a difference in surface energy from the first resin at 25° C. of 0.1 to 20 mN/m, and formed in a layer-separated structure, a pellet, a method of manufacturing the same, and a resin molded article having a specific layer-separated structure. Because of the resin blend, a molded product may have enhanced mechanical properties and surface hardness, and additional surface coating may be omitted, thereby reducing a processing time, increasing productivity, and reducing production costs.Type: ApplicationFiled: May 23, 2014Publication date: September 11, 2014Inventors: Eun Joo CHOI, Jin Young RYU, Woo Sung KIM, Houng Sik YOO, Han Na LEE, Hyeon CHOI
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Publication number: 20140255699Abstract: Provided are a resin blend, which includes a first resin, and a second resin having hydrogen-binding donor and acceptor, and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m, and is formed in a layer-separated structure, a pellet, a method of manufacturing the same, and a resin molded article having a specific layer-separated structure. Because of the resin blend, a molded article may have enhanced mechanical properties and surface hardness, and additional surface coating may be omitted, thereby reducing a processing time, increasing productivity, and reducing production costs.Type: ApplicationFiled: May 23, 2014Publication date: September 11, 2014Inventors: Houng Sik YOO, Han Na LEE, Jin Young RYU, Hyeon CHOI, Woo Sung KIM, Eun Joo CHOI
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Publication number: 20140087157Abstract: Provided is a resin article having a layer-separated structure. The resin article may include a first resin layer and a second resin layer formed on the first resin layer. Also, the component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.Type: ApplicationFiled: November 20, 2013Publication date: March 27, 2014Applicant: LG Chem, Ltd.Inventors: Houng Sik YOO, Hak Shin KIM, Jin Young RYU, Chong Kyu SHIN, Young Jun HONG, Jeong Min KIM, Eun Joo CHOI
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Publication number: 20130330558Abstract: The present invention relates to a resin blend for a melting process, to a method for manufacturing a resin molding using same, and to a resin molding obtained thereby, the resin blend comprising a first resin and a second resin, wherein the second resin includes a polymer resin having at least one organic functional group selected from the group consisting of an alkyl group having 2 to 20 carbon atoms, an alicyclic ring having 5 to 40 carbon atoms and an aromatic ring having 6 to 40 carbon atoms, and has, with the first resin, a melt viscosity difference of 0.1 to 3,000 Pa*s at a shear rate of 100 to 1,000 s?1 and a processing temperature of the resin mixture, and a glass transition temperature (Tg) difference of 10° C. to 150° C. The resin blend allows a resin molding to have enhanced mechanical properties and surface features, and exhibits the effects of reducing a processing time, and reducing production costs by eliminating an additional surface coating step.Type: ApplicationFiled: October 14, 2011Publication date: December 12, 2013Applicant: LG CHEM, LTD.Inventors: Houng Sik Yoo, Jin Young Ryu, Hak Shin Kim, Eun Joo Choi, Young Jun Hong, Hyun Seok Yang
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Publication number: 20130323509Abstract: The present invention relates to a resin mixture for melt processing, comprising a first resin; and a second resin comprising an acrylate-based copolymer including silica particles and having a polydispersity index (PDI) of 1 to 2.5, a method for preparing a resin-molded article using the same, and a resin-molded article. Surface characteristics of the molded article can be improved and excellent scratch resistance can be obtained by using the resin composition. In addition, processing time can be reduced, productivity is increased, and manufacturing costs are lowered by omitting the additional surface coating step.Type: ApplicationFiled: October 14, 2011Publication date: December 5, 2013Applicant: LG CHEM, LTD.Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Eun Joo Choi, Young Jun Hong
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Publication number: 20130323510Abstract: Provided is a resin blend including a first resin and a second resin, the second resin having a hydrophobic functional group in a side chain and having a surface energy difference of 0.1 to 20 mN/m from the first resin at 25° C., the resin blend being capable of forming a layer separation structure. Also, provided are a pellet, a method for preparing the same, and a resin molding articlemolding article having a specific layer separation structure. The resin blend may not only improve mechanical properties and surface hardness of the molding articlemolding article but also shorten process time, increase productivity and reduce production cost by omitting an additional surface coating step.Type: ApplicationFiled: August 12, 2013Publication date: December 5, 2013Applicant: LG CHEM LTD.Inventors: Houng Sik Yoo, Jin Young Ryu, Woo Sung KIM, Han Na Lee, Eun Joo Choi, Hyeon Choi