Patents by Inventor Seung-a BACK

Seung-a BACK 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).

  • Patent number: 11174401
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy resin, an oxetane resin, a photopolymerization initiator, and a surfactant comprising a polar functional group, wherein the content ratio of the epoxy resin to the oxetane resin is 1:0.5-1:6.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 11021622
    Abstract: Disclosed is an ink composition for a 3D printing supporter and a 3D printing production method using the same, in which the ink composition is usable for an inkjet 3D printer, has excellent jetting properties and is easily dissolved in water after curing so that a supporter can be easily removed. The ink composition for a 3D printing supporter comprises: an amine-containing monomer, a curing agent, and a water-soluble polymer having an amine-containing polymer.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: June 1, 2021
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Seung-A Back, Sung-Eun Park
  • Patent number: 10954404
    Abstract: The present invention relates to an ink composition for a 3D printing support, comprising an amine-containing monomer and a curing agent. According to the present invention, an ink composition for a 3D printing support, which retains an excellent jetting property, is well dissolved in water after being photo-cured to be easily removed, and has less curing contraction and excellent storage stability, can be provided.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: March 23, 2021
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Sung-Eun Park, Seung-A Back
  • Patent number: 10739677
    Abstract: This invention relates to a photosensitive color ink composition for a bezel, including (A) a cationic polymerizable alicyclic epoxy monomer, (B) a cationic polymerizable aliphatic epoxy monomer, (C) an oxetane monomer, (D) a photopolymerization initiator, and (E) a colorant, and to a bezel pattern formed using the same.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: August 11, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Publication number: 20200131386
    Abstract: Disclosed is an ink composition for a 3D printing supporter and a 3D printing production method using the same, in which the ink composition is usable for an inkjet 3D printer, has excellent jetting properties and is easily dissolved in water after curing so that a supporter can be easily removed. The ink composition for a 3D printing supporter comprises: an amine-containing monomer, a curing agent, and a water-soluble polymer having an amine-containing polymer.
    Type: Application
    Filed: February 17, 2017
    Publication date: April 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Seung-A Back, Sung-Eun Park
  • Patent number: 10414926
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound, a photopolymerization initiator, and an adhesion promoter, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6, and an adhesion to a glass substrate after curing is 4B or higher according to the ASTM D3359 standard.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 17, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10414925
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound, a photopolymerization initiator, and a surfactant comprising a polar functional group, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6, an adhesion to a glass substrate after curing is 4B or higher according to the ASTM D3359 standard, a contact angle to the glass substrate is less than 10°, and an adhesion with a substrate coated with an adhesive layer after curing is 100-5,000 gf/25 mm.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10358565
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 23, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10322569
    Abstract: The present invention relates to a substrate bonding method and a display substrate manufactured thereby, the method comprising the steps of: (1) forming a pattern by ink-jet printing a photo-curable adhesive ink on a lower substrate; (2) forming a spacer on the lower substrate by photo-curing the pattern; (3) forming an adhesive layer by ink-jet printing the photo-curable adhesive ink on the surface of the lower substrate on which the spacer is formed; and (4) laminating the adhesive layer of the lower substrate and an upper substrate by performing photo-curing.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Seung-A Back, Joon-Hyung Kim
  • Patent number: 10259957
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein a content ratio of the epoxy compound to the oxetane compound is 1:0.5 to 1:6 and the curing dose amount of the ultraviolet curable ink composition is 20 to 5,000 mJ/cm2.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 16, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10227498
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein a content ratio of the epoxy compound to the oxetane compound is 1:0.5 to 1:6, a taper angle after being cured is 0° to 30°, and optical density (OD) value is 0.05 to 2.5 per a film thickness of 1.0 ?m.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: March 12, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Publication number: 20180281293
    Abstract: The present invention relates to a method for forming a three-dimensional object; according to the present invention, when the three-dimensional object is manufactured by an inkjet method, a support can be removed without damage to a structure body such that the three-dimensional object can be simply and economically manufactured.
    Type: Application
    Filed: October 28, 2016
    Publication date: October 4, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Sung-Eun Park, Seung-A Back
  • Publication number: 20180215937
    Abstract: The present invention relates to an ink composition for a 3D printing support, comprising an amine-containing monomer and a curing agent. According to the present invention, an ink composition for a 3D printing support, which retains an excellent jetting property, is well dissolved in water after being photo-cured to be easily removed, and has less curing contraction and excellent storage stability, can be provided.
    Type: Application
    Filed: July 19, 2016
    Publication date: August 2, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Sung-Eun Park, Seung-A Back
  • Publication number: 20170348955
    Abstract: The present invention relates to a substrate bonding method and a display substrate manufactured thereby, the method comprising the steps of: (1) forming a pattern by ink-jet printing a photo-curable adhesive ink on a lower substrate; (2) forming a spacer on the lower substrate by photo-curing the pattern; (3) forming an adhesive layer by ink-jet printing the photo-curable adhesive ink on the surface of the lower substrate on which the spacer is formed; and (4) laminating the adhesive layer of the lower substrate and an upper substrate by performing photo-curing.
    Type: Application
    Filed: November 27, 2015
    Publication date: December 7, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Seung-A BACK, Joon-Hyung KIM
  • Publication number: 20170298241
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound, a photopolymerization initiator, and an adhesion promoter, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6, and an adhesion to a glass substrate after curing is 4B or higher according to the ASTM D3359 standard.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 19, 2017
    Inventors: Sung-Eun PARK, Yong-Sung GOO, Seung-A BACK, Joon-Hyung KIM
  • Publication number: 20170283634
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein a content ratio of the epoxy compound to the oxetane compound is 1:0.5 to 1:6 and the curing dose amount of the ultraviolet curable ink composition is 20 to 5,000 mJ/cm2.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 5, 2017
    Inventors: Sung-Eun PARK, Yong-Sung GOO, Seung-A BACK, Joon-Hyung KIM
  • Publication number: 20170283633
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein a content ratio of the epoxy compound to the oxetane compound is 1:0.5 to 1:6, a taper angle after being cured is 0° to 30°, and optical density (OD) value is 0.05 to 2.5 per a film thickness of 1.0 ?m.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 5, 2017
    Inventors: Sung-Eun PARK, Yong-Sung GOO, Seung-A BACK, Joon-Hyung KIM
  • Publication number: 20170275480
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy resin, an oxetane resin and a photopolymerization initiator, wherein the content ratio of the epoxy resin to the oxetane resin is 1:0.5-1:6.
    Type: Application
    Filed: September 30, 2015
    Publication date: September 28, 2017
    Inventors: Sung-Eun PARK, Yong-Sung GOO, Seung-A BACK, Joon-Hyung KIM
  • Publication number: 20170227844
    Abstract: This invention relates to a photosensitive color ink composition for a bezel, including (A) a cationic polymerizable alicyclic epoxy monomer, (B) a cationic polymerizable aliphatic epoxy monomer, (C) an oxetane monomer, (D) a photopolymerization initiator, and (E) a colorant, and to a bezel pattern formed using the same.
    Type: Application
    Filed: December 11, 2015
    Publication date: August 10, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Sung-Eun PARK, Yong-Sung GOO, Seung-A BACK, Joon-Hyung KIM
  • Publication number: 20170218212
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy resin, an oxetane resin, a photopolymerization initiator, and a surfactant comprising a polar functional group, wherein the content ratio of the epoxy resin to the oxetane resin is 1:0.5-1:6, an adhesion to a glass substrate after curing is 4B or higher according to the ASTM D3359 standard, a contact angle to the glass substrate is less than 10°, and an adhesion with a substrate coated with an adhesive layer after curing is 100-5,000 gf/25 mm.
    Type: Application
    Filed: September 30, 2015
    Publication date: August 3, 2017
    Inventors: Sung-Eun PARK, Yong-Sung GOO, Seung-A BACK, Joon-Hyung KIM