Patents by Inventor Joon-Koo Kang

Joon-Koo Kang 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).

  • Publication number: 20150225598
    Abstract: Disclosed is a hard coating film with high impact resistance and superior physical properties, including high hardness, scratch resistance and transparency, and high processability.
    Type: Application
    Filed: July 29, 2013
    Publication date: August 13, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Publication number: 20150203711
    Abstract: The present invention relates to a hard coating film, and, more particularly, to a hard coating film having hardness and excellent physical properties without a supporting substrate. According to the present invention, the hard coating film has high physical properties including hardness, scratch resistance, transparency, durability, light resistance, and light transmittance. Thus, the hard coating film can find useful applications in various fields thanks to its excellent physical properties.
    Type: Application
    Filed: July 29, 2013
    Publication date: July 23, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon-Koo Kang, Yeong-Rae Chang, Sung-Don Hong, Soon-Hwa Jung, Eun-Kyu Her
  • Publication number: 20150197662
    Abstract: The present invention relates to a hard coating film, and, more particularly, to a hard coating film having hardness and excellent physical properties. According to the present invention, the hard coating film has high physical properties including hardness, fouling resistance, slip resistance, scratch resistance, transparency, durability, light resistance, and light transmittance. Thus, the hard coating film can find useful applications in various fields thanks to its excellent physical properties.
    Type: Application
    Filed: July 29, 2013
    Publication date: July 16, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Soon Hwa Jung, Yeong Rae Chang
  • Publication number: 20150175808
    Abstract: The present invention relates to a method of preparing a hard coating film, and, more particularly, to a method of preparing a hard coating film having high hardness. According to this method, a hard coating film having high hardness, which is not easily curled, can be easily prepared.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 25, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Sung Don Hong, Soon Hwa Jung, Eun Kyu Her
  • Publication number: 20150166818
    Abstract: The present invention provides a hard coating film having high hardness and excellent properties. The hard coating film has high hardness and is not easily curled.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 18, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
  • Publication number: 20150166750
    Abstract: The present invention relates to a method of preparing a hard coating film, and, more particularly, to a method of preparing a hard coating film having high hardness. According to this method, a hard coating film having high hardness, which is not easily curled, can be easily prepared.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 18, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
  • Patent number: 9051474
    Abstract: An exemplary embodiment of the present invention relates to an anti-glare coating composition and anti-glare coating film having excellent abrasion resistance and contamination resistance. The anti-glare coating composition according to the exemplary embodiment of the present invention comprises a) a binder resin; b) a fluorine-based UV curable functional group-containing compound; c) a photoinitiator; d) a surface curable photoinitiator; and e) a particulate of which a surface has an uneven pattern. In the case where a film is formed by using the anti-glare coating composition according to the exemplary embodiment of the present invention, it is possible to provide both abrasion resistance and contamination resistance by a single coating method, to maintain characteristics of abrasion resistance and contamination resistance when the film is rubbed, and to decrease and easily remove contamination by an oil component, such as a fingerprint mark.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: June 9, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Soon Hwa Jung, Sung Su Kim, Young Jun Hong, Kyungki Hong, Yeongrae Chang, Soo Kyoung Lee, Joon Koo Kang, Sang Hyuk Im, Jae Pil Koo, Eun Sang Yoo
  • Publication number: 20150148443
    Abstract: The present invention relates to a hard coating composition, and, more particularly, to a hard coating composition used in forming a hard coating film exhibiting high hardness and excellent properties. The hard coating composition can be used to form a high-hardness hard coating film that is not easily curled.
    Type: Application
    Filed: May 31, 2013
    Publication date: May 28, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
  • Publication number: 20150140279
    Abstract: The present invention relates to a hard coating film and a preparation method thereof, and, more particularly, to a hard coating film having high hardness and excellent properties and a method of preparing the same. The method is advantageous in that a high-hardness hard coating film, which is not easily curled, can be easily prepared. The hard coating film prepared by this method can be usefully used in various fields because it has high hardness, scratch resistance, transparency, durability, light resistance, light transmittance and the like.
    Type: Application
    Filed: May 31, 2013
    Publication date: May 21, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Eun Kyu Her, Yeong Rae Chang, Soon Hwa Jung, Jin Young Park, Hyeok Jeong
  • Publication number: 20150132552
    Abstract: The present invention provides a hard coating film having high hardness and excellent properties. The hard coating film has high hardness and is not easily curled.
    Type: Application
    Filed: May 31, 2013
    Publication date: May 14, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Joon Koo Kang, Yeong Rae Chang, Jae Hoon Shim, Sung Don Hong, Seung Jung Lee
  • Patent number: 8814370
    Abstract: The present invention relates to an anti-reflective coating composition that can be used to form at least two layers by a single coating process and is allowed to provide an anti-reflective coating film having more improved interface adhesion between the formed layers and scratch resistance, and an anti-reflective coating film manufactured using the same.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 26, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Heon Kim, Yeong-Rae Chang, Joon-Koo Kang, Jae-Pil Koo
  • Patent number: 8795825
    Abstract: The present invention relates to an anti-reflective coating film. This anti-reflective coating film shows more improved interface adhesion and scratch resistance, which can be manufactured by a simple process.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 5, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Heon Kim, Yeong-Rae Chang, Joon-Koo Kang, Jae-Pil Koo
  • Publication number: 20140154486
    Abstract: The present invention relates to an anti-reflective coating composition providing improved scratch resistance, a method for manufacturing an anti-reflective film using the same, and an anti-reflective film manufactured thereby. According to the present invention, provided are a composition that is able to form a coating layer having improved surface scratch resistance, while forming one or more layers by a single coating process, and an anti-reflective film manufactured by using the same.
    Type: Application
    Filed: September 28, 2012
    Publication date: June 5, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Heon Kim, Joon-Koo Kang, Yeong-Rae Chang, Hye-Min Kim
  • Publication number: 20140127465
    Abstract: The present invention relates to an anti-glare film with excellent anti-glare properties as well as improved contrast ratio and image definition and a preparation method for the same. More specifically, the anti-glare film comprises an anti-glare layer comprising organic or inorganic particles having a volume average particle diameter of 5 to 10 ?m and a photocurable resin. Here, the difference in refraction index between the organic or inorganic particles and the photocurable resin is in the range of 0.005 to 0.05, and the volume average particle diameter of the organic or inorganic particles and the thickness of the anti-glare layer satisfy a defined mathematical formula.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Jae-Hoon SHIM, Joon Koo KANG, Jae-Pil KOO, Ki-Uk LIM, Yeong Rae CHANG, Soo-Kyoung LEE, Joo-Jong MOON
  • Publication number: 20130284354
    Abstract: Provided is a substrate for an organic light emitting diode including a base substrate, a high refractive scattering layer formed on the base substrate, and having a scattering particle scattering light in a high refractive material, and an adhesive layer formed between the base substrate and the high refractive scattering layer to laminate the base substrate with the high refractive scattering layer, wherein the high refractive scattering layer has a structure in which the scattering particle is immersed in the high refractive material, an average thickness of the high refractive scattering layer is smaller than an average diameter of the scattering particle, a surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has unevenness formed by the scattering particle, the opposite surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has a planarized surface, and a method for manufacturing the same.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Yeon-Keun LEE, Jae Min Moon, Joon Koo Kang, Mun Kyu Joo, Kyoung Sik Moon, Seong Su Jang
  • Publication number: 20130286659
    Abstract: Provided is a substrate for an organic light emitting diode including a base substrate, a high refractive scattering layer formed on the base substrate, and having a scattering particle scattering light in a high refractive material, and an adhesive layer formed between the base substrate and the high refractive scattering layer to laminate the base substrate with the high refractive scattering layer, wherein the high refractive scattering layer has a structure in which the scattering particle is immersed in the high refractive material, an average thickness of the high refractive scattering layer is smaller than an average diameter of the scattering particle, a surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has unevenness formed by the scattering particle, the opposite surface of the high refractive scattering layer laminated with the base substrate by the adhesive layer has a planarized surface, and a method for manufacturing the same.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Inventors: Yeon Keun Lee, Jae Min Moon, Joon Koo Kang, Mun Kyu Joo, Kyoung Sik Moon, Seong Su Jang
  • Patent number: 8557890
    Abstract: The present invention provides a coating composition and a coating film that comprises a binder containing a UV-curable functional group, a compound containing a fluorine UV-curable functional group, a photoinitiator; and nano-sized particles. The coating film according to the present invention has excellent abrasion resistance and contamination resistance such as fingerprint trace removability and scribbling resistance.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: October 15, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Yeong-Rae Chang, Joon-Koo Kang, Kyung-Ki Hong, Eun-Sang Yoo, Sung-Su Kim, Ju-Young Kim, Soon-Hwa Jung, Young-Jun Hong
  • Patent number: 8426487
    Abstract: The present invention provides a fluorine-based compound and a coating composition and a film including the same. By using the fluorine-based compound according to the present invention, a film having excellent functionalities of water repellency, oil repellency, weatherability and contamination resistance can be provided.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: April 23, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Chong-Kyu Shin, Yeong-Rae Chang, Joon-Koo Kang
  • Publication number: 20130088779
    Abstract: An exemplary embodiment of the present invention provides an antireflective and antiglare coating composition, comprising: a low refractive substance having a refractive index of 1.2 to 1.45, a high refractive substance having a refractive index of 1.46 to 2, a fluorine-based compound and a particulates having an average particle diameter of 1 to 10 ?m, wherein a surface energy difference between the low refractive substance and the high refractive substance is 5 mN/m or more, an antireflective and antiglare film manufactured by using the same, and a method for manufacturing the same. According to the exemplary embodiment of the present invention, an antireflective and antiglare film having excellent wear resistance and antireflection function may be manufactured by a single coating process using the single composition, such that a manufacturing cost may be decreased.
    Type: Application
    Filed: July 14, 2011
    Publication date: April 11, 2013
    Inventors: Joon Koo Kang, Han Sik Yun, Yeongrae Chang, Boo Kyung Kim
  • Publication number: 20130090403
    Abstract: An exemplary embodiment of the present invention relates to an anti-glare coating composition and anti-glare coating film having excellent abrasion resistance and contamination resistance. The anti-glare coating composition according to the exemplary embodiment of the present invention comprises a) a binder resin; b) a fluorine-based UV curable functional group-containing compound; c) a photoinitiator; d) a surface curable photoinitiator; and e) a particulate of which a surface has an uneven pattern. In the case where a film is formed by using the anti-glare coating composition according to the exemplary embodiment of the present invention, it is possible to provide both abrasion resistance and contamination resistance by a single coating method, to maintain characteristics of abrasion resistance and contamination resistance when the film is rubbed, and to decrease and easily remove contamination by an oil component, such as a fingerprint mark.
    Type: Application
    Filed: July 13, 2011
    Publication date: April 11, 2013
    Inventors: Soon Hwa Jung, Sung Su Kim, Young Jun Hong, Kyungki Hong, Yeongrae Chang, Soo Kyoung Lee, Joon Koo Kang, Sang Hyuk Im, Jae Pil Koo, Eun Sang Yoo