Patents Assigned to Youl Chon Chemical Co., Ltd.
  • Patent number: 9590189
    Abstract: Provided are a host material for a blue phosphor, and an organic thin film and an organic light-emitting device including the same. The host material for a blue phosphor is such that a carbazole compound is bonded around a central atom, wherein the central atom is a Group 14 element, and the carbazole compound bonded around the central atom is 3 or 4, wherein the carbazole compound. includes carbazole in which an alkyl group is substituted The host material for a blue phosphor has high triplet energy (ET) and excellent electrical mobility and thermal stability. As a result, the organic thin film, which includes the host material, and the organic light-emitting device, which includes the organic thin film, implement a deep blue color and have excellent luminous efficiency.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: March 7, 2017
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventor: Dong Yoon Shin
  • Patent number: 9410032
    Abstract: Provided is a composition for a starch container, comprising: 20 to 60 weight % of an undenatured starch; 5 to 30 weight % of a pulp fiber powder; 0.1 to 2 weight % of a photocatalyst; 0.5 to 5 weight % of a release agent; and 0.01 to 5 weight % of a capsule type blowing agent preparations; and the remainder being a solvent. Also provided is a starch container using the composition. The above-described composition of the present invention may be used not only as a material for a disposable container which has improved blowing property, and which is lightweight and has improved moldability, but also as a material for an eco-friendly starch container having eco-friendly characteristics.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: August 9, 2016
    Assignee: Youl Chon Chemical Co., LTD.
    Inventors: Heon Moo Kim, Kang Soo Kim
  • Patent number: 9136414
    Abstract: Provided are a back sheet for a solar cell module, and a solar cell module comprising same. The back sheet for a solar cell module comprises: a heat-dissipating metal layer; an upper anticorrosion layer formed on the upper surface of said heat-dissipating metal layer; a lower anticorrosion layer formed on the lower surface of said heat-dissipating metal layer; and a surface layer formed on said upper anticorrosion layer and adhered to a charging sheet of the solar cell module. The back sheet for a solar cell module according to the present invention has superior heat-dissipating properties and thus may efficiently dissipate (discharge) heat generated in a solar cell, thereby increasing the amount of power generation (photoconversion efficiency) of the solar cell. In addition, the back sheet of the present invention is inexpensive and may improve adhesive force and the like.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: September 15, 2015
    Assignee: Youl Chon Chemical Co., LTD.
    Inventors: Han Jun Kang, Sung Ho Lee, Jin Ho Kim
  • Patent number: 9005583
    Abstract: There is provided a novel chain-end functionalized PEO of formulas (I) to (IV) prepared via living anionic polymerization and chain-end functionalization, as well as a simple method of preparing nano-sized transition metal or metal salt particles using the same, which can be readily stabilized even in an aqueous medium. The water-soluble PEO-based polymers having various functional groups (including a drug group such as vitamin and anti-cancer agent) and the process of preparing nano-sized transition metal or metal salt particles using the same can be advantageously used in the development of new materials for drug delivering system and imaging, e.g., a contrast agent and an anti-cancer agent simultaneously.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: April 14, 2015
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventors: Jungahn Kim, Kwang Ung Kim, Seung Sang Hwang, Soon Man Hong, Soonjong Kwak, Joon Hyeong Park, Ji Hee Kim, Dong Youn Shin, Soon Geun Hwang, Jang Seop Kim, Han Wook Ryu
  • Patent number: 8980413
    Abstract: Cell packaging according to one embodiment of the present invention comprises: a base film layer; and a print layer provided beneath or on the base film layer, and including a binder resin and carbon black. The base film layer or print layer of the cell packaging is partially removed by means of laser irradiation to expose the layer under same. Therefore, according to the cell packaging of the invention, a wide range of shapes or logos, etc. can easily be externally displayed so as to be discernible by means of laser irradiation. By thus imparting discernibility and externality to the cell packaging, a labeling process for attaching a separate label to the cell packaging can be excluded.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 17, 2015
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventors: Han Jun Kang, Hee Sik Han, Woo Sic Jung, Sung Ho Lee, Jong Woon Yoon, Ji Hee Kim, Sang Min Lee
  • Patent number: 8926940
    Abstract: Provided are: a device and method for generating hydrogen from a hydrogen reservoir, whereby it is possible to produce two weight equivalents of the weight equivalent of the hydrogen which can be emitted from ammonia borane-based compounds, in other words a hydrogen storage capacity of 13.0%, in a short time at low temperature; a catalyst used with the same; and a device for using emitted hydrogen.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: January 6, 2015
    Assignee: Youl Chon Chemical Co. Ltd.
    Inventors: Dong Yun Shin, Nok Jung Song, Sung Kwan Kim
  • Publication number: 20140231786
    Abstract: Disclosed is a blue phosphorescent organic light emitting device having a minimal lamination structure. The device includes an anode; an emitting layer formed on the anode and including a host and a dopant; an electron transport layer formed on the emitting layer; and a cathode formed on the electron transport layer. A difference between a work function of the anode and a high occupied molecular orbital (HOMO) energy level of the emitting layer is less than 1.0 eV, and a difference between a low occupied molecular orbital (LUMO) energy level of the emitting layer and an LUMO energy level of the electron transport layer is less than 1.0 eV.
    Type: Application
    Filed: June 29, 2012
    Publication date: August 21, 2014
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventor: Dong Yoon Shin
  • Publication number: 20140159027
    Abstract: Provided are a host material for a blue phosphor, and an organic thin film and an organic light-emitting device including the same. The host material for a blue phosphor is such that a carbazole compound is bonded around a central atom, wherein the central atom is a Group 14 element, and the carbazole compound bonded around the central atom is 3 or 4, wherein the carbazole compound includes carbazole in which an alkyl group is substituted. The host material for a blue phosphor has high triplet energy (ET) and excellent electrical mobility and thermal stability. As a result, the organic thin film, which includes the host material, and the organic light-emitting device, which includes the organic thin film, implement a deep blue color and have excellent luminous efficiency.
    Type: Application
    Filed: July 13, 2012
    Publication date: June 12, 2014
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventor: Dong Yoon Shin
  • Publication number: 20140090708
    Abstract: Provided are a back sheet for a solar cell module, and a solar cell module comprising same. The back sheet for a solar cell module comprises: a heat-dissipating metal layer; an upper anticorrosion layer formed on the upper surface of said heat-dissipating metal layer; a lower anticorrosion layer formed on the lower surface of said heat-dissipating metal layer; and a surface layer formed on said upper anticorrosion layer and adhered to a charging sheet of the solar cell module. The back sheet for a solar cell module according to the present invention has superior heat-dissipating properties and thus may efficiently dissipate (discharge) heat generated in a solar cell, thereby increasing the amount of power generation (photoconversion efficiency) of the solar cell. In addition, the back sheet of the present invention is inexpensive and may improve adhesive force and the like.
    Type: Application
    Filed: May 17, 2012
    Publication date: April 3, 2014
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Han Jun Kang, Sung Ho Lee, Jin Ho Kim
  • Publication number: 20140061089
    Abstract: Provided is a composition for a starch container, comprising: 20 to 60 weight % of an undenatured starch; 5 to 30 weight % of a pulp fiber powder; 0.1 to 2 weight % of a photocatalyst; 0.5 to 5 weight % of a release agent; and 0.01 to 5 weight % of a capsule type blowing agent preparations; and the remainder being a solvent. Also provided is a starch container using the composition. The above-described composition of the present invention may be used not only as a material for a disposable container which has improved blowing property, and which is lightweight and has improved moldability, but also as a material for an eco-friendly starch container having eco-friendly characteristics.
    Type: Application
    Filed: May 17, 2012
    Publication date: March 6, 2014
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Heon Moo Kim, Kang Soo Kim
  • Publication number: 20140041716
    Abstract: Provided are a back sheet for a solar cell module and a solar cell module including the same, the solar cell module comprises a polyester film layer and a fluorine coating layer which coats at least one surface of the polyester film layer. The back sheet is formed on an upper surface of the polyester film layer, and include s a polyethylene film layer attached to an ethylene vinyl acetate (EVA) sheet of the solar cell module. The back sheet for the solar cell module can be distributed at a low cost, and has excellent adhesive property, moisture barrier property (water vapor -permeability preventing property) and the like.
    Type: Application
    Filed: April 26, 2012
    Publication date: February 13, 2014
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Han Jun Kang, Sung Hwan Yoon, Seung Hwan Jeon, Eun Goo Lee
  • Publication number: 20130263922
    Abstract: Provided is a back sheet for solar cells including a substrate, a fluororesin layer existing on one side of the substrate and a heat-dissipating ink layer existing on the other side of the substrate. Provided also is a method for preparing the same. The back sheet for solar cells may have an excellent heat dissipation property as well as a high durability. Further, the method for preparing the same may allow a cost-efficient production of solar cells.
    Type: Application
    Filed: December 28, 2011
    Publication date: October 10, 2013
    Applicant: Youl Chon Chemical Co., Ltd.
    Inventors: Jae Chul Jung, Han Joon Kang, Hee Sik Han, Sung Ho Lee, Jin Ho Kim
  • Publication number: 20130089493
    Abstract: Provided are: a device and method for generating hydrogen from a hydrogen reservoir, whereby it is possible to produce two weight equivalents of the weight equivalent of the hydrogen which can be emitted from ammonia borane-based compounds, in other words a hydrogen storage capacity of 13.0%, in a short time at low temperature; a catalyst used with the same; and a device for using emitted hydrogen.
    Type: Application
    Filed: June 16, 2010
    Publication date: April 11, 2013
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Dong Yun Shin, Nok Jung Song, Sung Kwan Kim
  • Patent number: 8389002
    Abstract: Disclosed is an anti-cancer medicine comprising a chain end functionalized polymer, a contrast material such as iron oxide and a chemotherapeutic agent such as doxorubicin or pharmaceutically acceptable salts thereof. The anti-cancer medicine performs diagnosis and treatment of cancer at the same time, remarkably reduces a cardiotoxic side effect of the doxorubicin and has an excellent targeting function to the cancer part to considerably increase the anti-cancer effect. At the same time, the anti-cancer medicine is provided as MRI contrast medium which can diagnose the cancer and monitor a progress of the disease. In particular, the anti-cancer medicine is disclosed which is superior to the diagnosis and treatment of the solid cancer and can effectively perform the diagnosis and treatment of the metastatic cancer as well as the primary cancer at the same time.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: March 5, 2013
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventors: Dong-Youn Shin, Jang-Seop Kim
  • Publication number: 20120183706
    Abstract: Cell packaging according to one embodiment of the present invention comprises: a base film layer; and a print layer provided beneath or on the base film layer, and including a binder resin and carbon black. The base film layer or print layer of the cell packaging is partially removed by means of laser irradiation to expose the layer under same. Therefore, according to the cell packaging of the invention, a wide range of shapes or logos, etc. can easily be externally displayed so as to be discernible by means of laser irradiation. By thus imparting discernibility and externality to the cell packaging, a labeling process for attaching a separate label to the cell packaging can be excluded.
    Type: Application
    Filed: September 15, 2010
    Publication date: July 19, 2012
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Han Jun Kang, Hee Sik Han, Woo Sic Jung, Sung Ho Lee, Jong Woon Yoon, Ji Hee Kim, Sang Min Lee
  • Publication number: 20110111142
    Abstract: Disclosed are a label and a method of manufacturing the same, the label comprising: a first base film; a first ink layer formed on the exterior top part of the first base film, and comprising a metal or metal oxide that changes from its original color to another color by being oxidized by a laser; and a resin coating layer coated on the first ink layer to protect the first ink layer, wherein the laser passing through a part or the whole of the resin coating layer is transmitted to the first ink layer. According to the present invention, there is no oxidation residue; thus, the efficiency of marking is excellent and any possibility of change in quality due to aging can be eliminated. In addition, the color rendering is excellent, and the scratch resistance, chemical resistance and heat resistance are superior.
    Type: Application
    Filed: May 15, 2009
    Publication date: May 12, 2011
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Young Hee Kim, Han Jun Kang, Woo Sic Jung, Sung Ho Lee
  • Patent number: 7931950
    Abstract: Disclosed is a composition for biodegradable starch bowl consisting of unmodified starch of 20-60 wt. %, pulp fiber powder of 5-30 wt. %, solvent of 30-60 wt. %, photo catalyst of 0.1-2.0 wt. %, preservative of 0.01-1 wt. % and releasing agent of 0.5-5 wt. %. In the present invention, further disclosed is a biodegradable starch bowl being prepared by heating and pressurizing said composition for biodegradable starch bowl so as to have a desired shape. The composition for a biodegradable starch bowl and the biodegradable starch bowl using the same according to the present invention have improved sterilizing, deodorizing, preservative and releasing properties.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: April 26, 2011
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventors: Heon Moo Kim, Sung Hwan Yoon, Yun Mi Bang
  • Patent number: 7931949
    Abstract: Disclosed is a biodegradable starch bowl prepared by heating and pressurizing a composition for the biodegradable starch bowl comprising unmodified starch of 20˜60 wt. %; pulp fiber powder of 5˜30 wt. %; solvent of 30˜60 wt. %; photo catalyst of 0.1˜2.0 wt. %; preservative of 0.01˜1 wt. %; and releasing agent of 0.5˜5 wt. % to have a desired shape, and a biodegradable film being attached on the inner surface of the bowl. The biodegradable starch bowl according to the present invention has an improved sterilizing property, deodorizing property, preservative property, releasing property, water-resistance and strength.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: April 26, 2011
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventors: Heon Moo Kim, Sung-Arn Lee, Kang-Soo Kim, Jun-Seung An, Young-Hee Kim
  • Publication number: 20110039215
    Abstract: Disclosed is a label having an ink layer which has a metal or a metal oxide as its pigment, the color of the metal or the metal oxide being changed with an oxidation reaction of the metal or the metal oxide by laser irradiation, the laser irradiation causing the oxidation reaction of the metal oxide so as to make the metal oxide change in its oxidation number or come to a complete oxidation state from an incomplete oxidation state.
    Type: Application
    Filed: July 26, 2007
    Publication date: February 17, 2011
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Jae Soon Kim, Hee Sung An, Han Jun Kang, Sung Ho Lee, Seok Hoon Lee
  • Publication number: 20100247832
    Abstract: Disclosed is a label comprising a substrate film, or a substrate film and an intermediate film, wherein either or both of the substrate film and the intermediate film have through-holes, and a method for preparing the same. The method for preparing the label causes no generation of defects, and shows an excellent production rate and work efficiency. The label has no possibility of forgery, and shows clear marking characteristics. In addition, the label has a simple structure and excellent printability and cost efficiency, causes no degradation of the quality with time, shows high chemical resistance and heat resistance, is free from various contaminants during use, and is provided with low initial adhesion but high permanent adhesion.
    Type: Application
    Filed: August 6, 2008
    Publication date: September 30, 2010
    Applicant: YOUL CHON CHEMICAL CO., LTD.
    Inventors: Young-Hee Kim, Han Jun Kang, Sung-ho Lee