Patents by Inventor Keong-Yeon YOON

Keong-Yeon YOON 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).

  • Polyurethane resin composition for support pad and polyurethane support pad using the same
    Patent number: 9745468
    Abstract: The present invention relates to a polyurethane resin composition for a support pad including a polyurethane resin, a DMF solvent, an anionic surfactant, and polyethylene glycol (PEG), and a polyurethane support pad including the polyurethane resin composition for a support pad. According to the present invention, long and large pores may be uniformly formed therein, and thus a support pad having an excellent compression rate and compression recovery rate may be provided.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: August 29, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Dong-Mok Shin, Na-Ri Kim, Byeong-In Ahn, Sang-Soon Choi, Young-Ji Tae, Keong-Yeon Yoon
  • Poly-urethane resin and poly-urethane absorbing pad using the same
    Patent number: 9133299
    Abstract: The present invention relates to a polyurethane resin composition including a first polyurethane resin and a second polyurethane resin that are different from each other in their compositions, an organic solvent, and a surfactant, and a polyurethane mounting pad manufactured from the resin composition.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: September 15, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sang-Soon Choi, Young-Ji Tae, Dong-Mok Shin, Keong-Yeon Yoon, Na-Ri Kim, Byeong-In Ahn
  • POLYURETHANE RESIN COMPOSITION FOR SUPPORT PAD AND POLYURETHANE SUPPORT PAD USING THE SAME
    Publication number: 20140206784
    Abstract: The present invention relates to a polyurethane resin composition for a support pad including a polyurethane resin, a DMF solvent, an anionic surfactant, and polyethylene glycol (PEG), and a polyurethane support pad including the polyurethane resin composition for a support pad. According to the present invention, long and large pores may be uniformly formed therein, and thus a support pad having an excellent compression rate and compression recovery rate may be provided.
    Type: Application
    Filed: August 17, 2012
    Publication date: July 24, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Dong-Mok Shin, Na-Ri Kim, Byeong-In Ahn, Sang-Soon Choi, Young-Ji Tae, Keong-Yeon Yoon
  • Polyurethane resin composition for mounting pad and polyurethane mounting pad using the same
    Patent number: 8481149
    Abstract: This disclosure relates to a polyurethane resin composition for a mounting pad, including a polyurethane resin, C9-15 alkyl benzene sulfonic acid or a salt thereof, and a DMF solvent, and a polyurethane mounting pad using the same, whereby long and large pores may be uniformly formed thereinside to provide a mounting pad having low hardness, excellent compressibility, and a high compression modulus.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: July 9, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Na-Ri Kim, Dong-Mok Shin, Byeong-In Ahn, Sang-Soon Choi, Keong-Yeon Yoon
  • POLY-URETHANE RESIN AND POLY-URETHANE ABSORBING PAD USING THE SAME
    Publication number: 20130018118
    Abstract: The present invention relates to a polyurethane resin composition including a first polyurethane resin and a second polyurethane resin that are different from each other in their compositions, an organic solvent, and a surfactant, and a polyurethane mounting pad manufactured from the resin composition.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 17, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Sang-Soon CHOI, Young-Ji TAE, Dong-Mok SHIN, Keong-Yeon YOON, Na-Ri KIM, Byeong-In AHN
  • METHOD FOR MANUFACTURING POROUS SHEET AND POROUS SHEET MANUFACTURED BY THE METHOD
    Publication number: 20120085038
    Abstract: The present invention provides a method for producing a porous sheet, including the steps of a) producing a polymer resin sheet containing an object to be processed by supercritical fluid extraction which is dissolved in supercritical fluid; and b) injecting the supercritical fluid into the polymer resin sheet to extract the object to be processed by supercritical fluid extraction that is contained in the polymer resin sheet, thereby forming pores in the polymer resin sheet, and a porous sheet produced by the same.
    Type: Application
    Filed: June 10, 2010
    Publication date: April 12, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Seong-Uk Jeong, Byeong-In Ahn, Young-Ji Tae, Keong-Yeon Yoon
  • POLYURETHANE RESIN COMPOSITION FOR MOUNTING PAD AND POLYURETHANE MOUNTING PAD USING THE SAME
    Publication number: 20120064326
    Abstract: This disclosure relates to a polyurethane resin composition for a mounting pad, including a polyurethane resin, C9-15 alkyl benzene sulfonic acid or a salt thereof, and a DMF solvent, and a polyurethane mounting pad using the same, whereby long and large pores may be uniformly formed thereinside to provide a mounting pad having low hardness, excellent compressibility, and a high compression modulus.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 15, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Na-Ri KIM, Dong-Mok SHIN, Byeong-In AHN, Sang-Soon CHOI, Keong-Yeon YOON