Patents by Inventor So-Yeon Kwon

So-Yeon Kwon 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: 10173469
    Abstract: There is provided a polymer film which includes: a base film layer including a polyamide-based resin having a particular relative viscosity and a copolymer including a polyamide-based segment and a polyether-based segment having a specific content; and an adhesive layer formed on at least one side of the base film layer, wherein a ratio of the melt viscosity of the copolymer to the melt viscosity of the polyamide resin is 0.65 to 1.2 at a shear rate of 1000 s?1 and a temperature of 260° C.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: January 8, 2019
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Young-Han Jeong, So-Yeon Kwon, Il Chung, Hyun Namgoong
  • Patent number: 10005891
    Abstract: There is provided a polymer film which includes a base film layer having an absolute weight average molecular weight of 50,000 to 1,000,000 and an adhesive layer, and a method for manufacturing the polymer film. This film for a tire inner liner can endow an excellent gas barrier property even to tires having a relatively thin thickness so that weight of the tire can be reduced and fuel efficiency of automobiles can be improved. Further, the present film facilitates molding in a tire manufacturing process, and exhibits excellent adhesion force to a carcass layer while having excellent mechanical properties such as high durability and fatigue resistance together with excellent moldability.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: June 26, 2018
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Young-Han Jeong, So-Yeon Kwon, Hyun Namgoong, Seong-Hun Kim
  • Patent number: 9757984
    Abstract: The present invention relates to a film for a tire inner liner including a base film layer including a copolymer or a mixture of a polyamide-based resin and a polyether-based resin, and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, and having low shrinkage rate when elongated at a high temperature and then cooled to room temperature, and a method for manufacturing the same.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: September 12, 2017
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: So-Yeon Kwon, Young-Han Jeong, Il Chung, Ok-Hwa Jeon
  • Patent number: 9527254
    Abstract: This disclosure relates to a film for a tire inner liner including a base film layer that has 3 glass transition temperature peaks and an adhesive layer including a resorcinol-formalin-latex(RFL)-based adhesive, and a method for manufacturing the film for a tire inner liner.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: December 27, 2016
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: So-Yeon Kwon, Hyun Namgoong, Young-Han Jeong
  • Patent number: 9399374
    Abstract: Disclosed is a film for a tire inner liner including a base film layer having an absolute weight-average molecular weight of 50,000 to 1,000,000, and an adhesive layer, and a method for manufacturing the film for a tire inner liner. The film for a tire inner liner may exhibit excellent gas barrier properties while having a thin thickness and lighter weight, and thus improves fuel efficiency, allows easier construction during its preparation, has excellent mechanical properties including high durability and fatigue resistance, and provides excellent adhesive strength to a tire carcass layer.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 26, 2016
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Young-Han Jeong, So-Yeon Kwon, Hyun Namgoong, Seong-Hun Kim
  • Publication number: 20160107483
    Abstract: There is provided a polymer film which includes: a base film layer including a polyamide-based resin having a particular relative viscosity and a copolymer including a polyamide-based segment and a polyether-based segment having a specific content; and an adhesive layer formed on at least one side of the base film layer, wherein a ratio of the melt viscosity of the copolymer to the melt viscosity of the polyamide resin is 0.65 to 1.2 at a shear rate of 1000 s?1 and a temperature of 260° C.
    Type: Application
    Filed: May 27, 2014
    Publication date: April 21, 2016
    Inventors: Young-Han JEONG, So-Yeon KWON, II CHUNG, Hyun NAMGOONG
  • Publication number: 20160096938
    Abstract: There is provided a polymer film which includes a base film layer having an absolute weight average molecular weight of 50,000 to 1,000,000 and an adhesive layer, and a method for manufacturing the polymer film. This film for a tire inner liner can endow an excellent gas barrier property even to tires having a relatively thin thickness so that weight of the tire can be reduced and fuel efficiency of automobiles can be improved. Further, the present film facilitates molding in a tire manufacturing process, and exhibits excellent adhesion force to a carcass layer while having excellent mechanical properties such as high durability and fatigue resistance together with excellent moldability.
    Type: Application
    Filed: May 27, 2014
    Publication date: April 7, 2016
    Inventors: Young-Han JEONG, So-Yeon KWON, Hyun NAMGOONG, Seong-Hun KIM
  • Publication number: 20150329744
    Abstract: This disclosure relates to a film for an inner liner including a base film layer and an adhesive layer, the base film layer including a polyamide-based resin, a specific copolymer, and a polymer crystallization retardant, and a method for manufacturing the same.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 19, 2015
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Young-Han JEONG, So-Yeon KWON, Hyun NAMGOONG, Seong-Hun KIM
  • Patent number: 9109304
    Abstract: Disclosed is aramid tire cord and a method for manufacturing the same, wherein the aramid tire cord has superior properties on initial modulus change rate, tensile strain, initial modulus and strength retention rate, wherein the initial modulus change rate is not more than 5% after the aramid tire cord is repetitively extended 10 times at 120° C. under the condition that the load corresponding to 10% of the strength at break is applied thereto. Thus, the aramid tire cord of the present invention has the most optimal modulus, optimal crystallization constant and optimal crystalline orientation constant so that the aramid tire cord is superior in its initial modulus change rate, tensile strain and initial modulus retention rate, to thereby obtain good fatigue resistance.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: August 18, 2015
    Assignee: KOLON INDUSTRIES, INC.
    Inventor: So Yeon Kwon
  • Patent number: 8834755
    Abstract: Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized by comprising multi-stage injection of a coagulant with sulfuric acid concentration lowered sequentially stage by stage, to a spun material fed into a coagulant injection tank. The present invention enables increase of a spinning and take-up velocity without occurrence of thread cutting by uniformly and evenly coagulating surface and inside of the spun material. In addition, the present invention recovers the coagulant or water already used and reuses the recovered coagulant or water in the earlier stages, so that it has advantages of saving production costs and reducing environmental contamination. Accordingly, the wholly aromatic polyamide filament produced according to the present invention has high crystallinity X, large apparent crystal size ACS and reduced defects in the crystal itself, thereby exhibiting more improved physical properties such as strength and modulus.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: September 16, 2014
    Assignee: Kolon Industries, Inc.
    Inventors: In-Sik Han, Jae-Young Lee, Seung-Hwan Lee, Jae-Young Kim, So-Yeon Kwon
  • Publication number: 20140227499
    Abstract: This disclosure relates to a film for a tire inner liner including a base film layer that has 3 glass transition temperature peaks and an adhesive layer including a resorcinol-formalin-latex(RFL)-based adhesive, and a method for manufacturing the film for a tire inner liner.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 14, 2014
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: So-Yeon Kwon, Hyun Namgoong, Young-Han Jeong
  • Patent number: 8584440
    Abstract: The present invention provides cellulose-based fibers including cellulose and at least one polymer selected from the group consisting of a polysiloxane, a polyacrylic acid, a polyacrylamide, an m-aramid, and a polyvinylalcohol/polystyrene copolymer, and a tire cord including the same. Furthermore, the cellulose-based fibers of the present invention have an advantage in superior elongation and tenacity of the prior cellulose fibers by blending at least one polymer having a functional group that is capable of a hydrogen bond with a hydroxyl group of a cellulose molecule.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: November 19, 2013
    Assignee: Kolon Industries, Inc.
    Inventors: Young-Se Oh, So-Yeon Kwon, Jong-Cheol Jeong, Woo-Chul Kim, Ok-Hwa Jeon, Il Chung, Jae-Woong Lee, Gi-Woong Kim
  • Publication number: 20130273358
    Abstract: The present invention relates to a film for a tire inner liner including a base film layer including a copolymer or a mixture of a polyamide-based resin and a polyether-based resin, and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, and having low shrinkage rate when elongated at a high temperature and then cooled to room temperature, and a method for manufacturing the same.
    Type: Application
    Filed: December 30, 2011
    Publication date: October 17, 2013
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: So-Yeon Kwon, Young-Han Jeong, Il Chung, Ok-Hwa Jeon
  • Patent number: 8419990
    Abstract: Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in the process of preparing the wholly aromatic polyamide polymer, the aromatic diamine, aromatic diacid chloride and polymerization solvent put into the reactor 20 are agitated by an agitation device which is installed in the reactor 20 and consists of: (i) a rotor 3 driven by a motor 2 and having a plurality of pins 3a; and (ii) a stator 4 having a plurality of pins 4a, wherein spin speed of the rotor 3 is controlled to 10 to 100 times of both of feeding rates for the aromatic diacid chloride and the aromatic diamine in the polymerization solvent into the reactor and, at the same time, contact frequency between the pins 3a and the pins 4a is regulated within a range of 100 to 1,000 Hz.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: April 16, 2013
    Assignee: Kolon Industries, Inc.
    Inventors: In-Sik Han, Jae-Young Lee, Jae-Young Kim, Tae-Hak Park, So-Yeon Kwon
  • Patent number: 8377355
    Abstract: Disclosed are a method of manufacturing wholly aromatic polyamid filaments and wholly aromatic polyamid filaments produced by the same. The process includes control of a timing for introducing wholly aromatic polyamid polymer into an extruder for preparation of a spinning dope based on particle size and/or inherent viscosity (IV) of the polyamid polymer.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: February 19, 2013
    Assignee: Kolon Industries, Inc.
    Inventor: So-Yeon Kwon
  • Patent number: 8105521
    Abstract: Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in a process of preparing wholly aromatic polyamide polymer, a multiple tubular feed pipe for polymeric monomer and polymerization solvent with specific construction of adjacent inner paths 11a and outer paths 11b which are alternately arranged one another is used to feed either aromatic diacid chloride A or aromatic diamine dissolved in the polymerization solvent B into a polymerization reactor 20 through corresponding one among the inner and outer paths 11a and 11b. The present invention is effective to progress uniform and homogeneous polymerization over all of area of a polymerization reactor 20 leading to reduction of deviation in degree of polymerization, since polymeric monomers are miscible and react together very well immediately after putting the monomers into the reactor 20.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: January 31, 2012
    Assignee: Kolon Industries, Inc.
    Inventors: In-Sik Han, Jae-Young Lee, Seung-Hwan Lee, Chang-Bae Lee, So-Yeon Kwon
  • Patent number: 8084571
    Abstract: Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in a process of preparing wholly aromatic polyamide polymer, a multiple tubular feed pipe for polymeric monomer and polymerization solvent with specific construction of adjacent inner paths 11a and outer paths 11b which are alternately arranged one another is used to feed either aromatic diacid chloride A or aromatic diamine dissolved in the polymerization solvent B into a polymerization reactor 20 through corresponding one among the inner and outer paths 11a and 11b. The present invention is effective to progress uniform and homogeneous polymerization over all of area of a polymerization reactor 20 leading to reduction of deviation in degree of polymerization, since polymeric monomers are miscible and react together very well immediately after putting the monomers into the reactor 20.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: December 27, 2011
    Assignee: Kolon Industries, Inc.
    Inventors: In-Sik Han, Jae-Young Lee, Seung-Hwan Lee, Chang-Bae Lee, So-Yeon Kwon
  • Publication number: 20110252762
    Abstract: The present invention is relates to lyocell filament fibers having fatigue resistance and durability, of which the dimensional stability at high temperature and the high speed driving performance are good, and a tire cord prepared therefrom.
    Type: Application
    Filed: September 1, 2008
    Publication date: October 20, 2011
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Gi-Woong Kim, So-Yeon Kwon, Ok-Hwa Jeon, Young-Se Oh, Jong-Cheol Jeong, Woo-Chul Kim, Il Chung, Jae-Woong Lee
  • Publication number: 20110218337
    Abstract: Disclosed are a lyocell filament fiber and a cellulose-based tire cord. The lyocell filament fibers and the cellulose based tire cord have good dimensional stability in a highly humid state and thus the tenacity, the elongation, and the modulus are superior to common cellulose based fibers, such as rayon and so on. Their property maintaining rate at the post manufacturing process is high and the processibility is good.
    Type: Application
    Filed: September 8, 2008
    Publication date: September 8, 2011
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Gi-Woong Kim, So-Yeon Kwon, Ok-Hwa Jeon, Young-Se Oh, Jong-Cheol Jeong, Woo-Chul Kim, Il Chung, Jae-Woong Lee
  • Publication number: 20110118389
    Abstract: The present invention provides cellulose-based fibers including cellulose and at least one polymer selected from the group consisting of a polysiloxane, a polyacrylic acid, a polyacrylamide, an m-aramid, and a poly vinylalcohol/polystyrene copolymer, and a tire cord including the same. Furthermore, the cellulose-based fibers of the present invention have an advantage in superior elongation and tenacity of the prior cellulose fibers by blending at least one polymer having a functional group that is capable of a hydrogen bond with a hydroxyl group of a cellulose molecule.
    Type: Application
    Filed: September 8, 2008
    Publication date: May 19, 2011
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Young-Se Oh, So-Yeon Kwon, Jong-Cheol Jeong, Woo-Chul Kim, Ok-Hwa Jeon, Il Chung, Jae-Woong Lee, Gi-Woong Kim