Patents by Inventor Jun Seop IM

Jun Seop IM 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: 20250101173
    Abstract: The present invention relates to a polycarbonate copolymer, a method for producing same, and a molded product comprising same, and more specifically, to: a polycarbonate copolymer exhibiting biodegradability and improved tensile strength and elongation compared to conventional polycarbonate copolymers due to including repeating units derived from a carbonate diester component and a diol component containing anhydrosugar alcohol, anhydrosugar alcohol-alkylene glycol, and aromatic diol in a specific content ratio; a method for producing the polycarbonate copolymer; and a molded article comprising the polycarbonate copolymer.
    Type: Application
    Filed: December 23, 2022
    Publication date: March 27, 2025
    Applicant: SAMYANG CORPORATION
    Inventors: Seung Hyun YOO, Jun Seop IM, Jae Guk NOH, Gwang Seok SONG, Min Jung CHANG
  • Patent number: 12180335
    Abstract: A polycarbonate diol is derived from ether diol of anhydrohexitol, a preparation method thereof, a polyurethane prepared therefrom, and adhesive, etc. including the same. More specifically, the polycarbonate diol includes repeated units derived from ether diol of anhydrohexitol; and carbonate diester; and optionally anhydrohexitol; and thereby showing better effect of improving color as compared with conventional polycarbonate diol, and being capable of providing polyurethane prepared therefrom with remarkably improved adhesion strength (T-peel strength or shear strength), preparation method thereof, polyurethane prepared therefrom, and adhesive, paint and coating agent including the same.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 31, 2024
    Assignee: SAMYANG CORPORATION
    Inventors: Jun Seop Im, Seung Hyun Yoo, Hoon Ryu, Won Hyun Jeon
  • Publication number: 20240409551
    Abstract: The present invention pertains to a saturated furodioxin derivative compound, and a use thereof as an additive for a secondary battery. More specifically, the present invention pertains to a novel compound and a method for preparing same, an electrolyte additive and a non-aqueous electrolyte composition containing the compound, and a secondary battery (in particular, a lithium-sulfur secondary battery) including the electrolyte composition, wherein the compound has a structure in which a substituent is bonded to a saturated furodioxin backbone. When the compound is contained as an additive in a non-aqueous electrolyte composition for a secondary battery (in a non-aqueous electrolyte composition for a lithium-sulfur secondary battery), the problem that conventional electrolyte compositions have of lithium polysulfide dissolution can be resolved, and high capacity retention rate characteristics can be achieved for various lithium salts.
    Type: Application
    Filed: October 5, 2022
    Publication date: December 12, 2024
    Applicant: SAMYANG CORPORATION
    Inventors: Jung Min AHN, Chi Wan LEE, Kwang Hee LEE, Jae Hoon LEE, Jun Seop IM, Chang Do JEE
  • Publication number: 20240343903
    Abstract: The present invention relates to a (meth)acrylic-modified polyurethane composition and a preparation method therefor, and, more specifically, to: a (meth)acrylic-modified polyurethane composition and a preparation method therefor, the composition comprising a hydrophilic (meth)acrylic-modified polyurethane, which comprises a polymerization unit derived from an anhydrosugar alcohol-alkylene oxide adduct, and a lipophilic (meth)acrylic-modified polyurethane, which comprises a polymerization unit derived from a lipophilic polyol, and enabling provision of an adhesive composition having excellent eco-friendliness, adhesive strength (particularly, adhesive strength between dissimilar materials) and oil resistance, and a hygroscopic coating composition having excellent hygroscopicity so as to be suitable for condensation prevention.
    Type: Application
    Filed: August 10, 2022
    Publication date: October 17, 2024
    Applicant: SAMYANG CORPORATION
    Inventors: Jae Hoon LEE, Hoon RYU, Jun Seop IM
  • Patent number: 12110390
    Abstract: The present invention relates to a solid dispersion, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same and, more particularly, to a solid dispersion in which an inorganic or organic material-derived isotropic or anisotropic substance is used as a dispersoid and dispersed at room temperature in a solid-phase dispersion medium such as polyols and sugars, whereby the dispersion can be easily stored and used, reduce transportation cost, prevent or alleviate the aggregation or precipitation caused during the storage of products, with the results of working efficiency improvement and processing cost reduction, and, when applied to polyurethane, can increase strength and provide an improved strength, compared to conventional curing agent, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: October 8, 2024
    Assignee: SAMYANG CORPORATION
    Inventors: Gwang Seok Song, Hoon Ryu, Jun Seop Im, Seung Hyun Yoo, Won Hyun Jeon
  • Patent number: 12060364
    Abstract: The present invention relates to a diisocynate compound having anhydrosugar alcohol core and a preparation method therefor and, more specifically, to a diisocynate compound having anhydrosugar alcohol core and a preparation method therefor, wherein the diisocynate compound is prepared through a reaction with a nitrile compound, a hydrogenation reaction, and an end-group substitution reaction while a recyclable, plant-based anhydrosugar alcohol or anhydrosugar alcohol-alkylene glycol is used as a raw material, and the diisocynate compound can be utilized in various fields, such as soft or hard polyurethane expanded foams, molded foams, coating, adhesives or glues, fibers, and polymer synthesis.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: August 13, 2024
    Assignee: SAMYANG CORPORATION
    Inventors: Seung Hyun Yoo, Hoon Ryu, Jun Seop Im, Gwang Seok Song, Won Hyun Jeon
  • Patent number: 12049535
    Abstract: The present invention relates to a polyol composition comprising anhydrosugar alcohols and an anhydrosugar alcohol polymer and, more specifically, to a polyol composition comprising a monoanhydrosugar alcohol, a dianhydrosugar alcohol, and a polymer of a monoanhydrosugar alcohol and/or a dianhydrosugar alcohol, the polyol composition being usable in various fields since the physical property conditions of the composition, such as number average molecular weight (Mn), polydispersity index (PDI) and hydroxyl value, satisfy specific levels, and, particularly, being capable of remarkably improving the physical properties of a polyurethane, such as tensile strength and elongation, when used as a polyurethane chain extender.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: July 30, 2024
    Assignee: SAMYANG CORPORATION
    Inventors: Jae Hoon Lee, Hoon Ryu, Gwang Seok Song, Jae Guk Noh, Seung Hyun Yoo, Jun Seop Im, Won Hyun Jeon
  • Publication number: 20240218111
    Abstract: The present invention relates to an epoxy resin with improved water resistance and a composition comprising same and, more specifically, to: an epoxy resin which is prepared by the reaction of epihalohydrin and a diol component including anhydrosugar alcohol and a diol other than the anhydrosugar alcohol in a specific content ratio, thus exhibiting excellent eco-friendliness and improved water resistance, and, when applied to a coating composition, exhibits an anti-fog effect and at the same time can provide a coating with improved durability against moisture; and a composition comprising the epoxy resin (preferably, an anti-fog coating composition).
    Type: Application
    Filed: April 25, 2022
    Publication date: July 4, 2024
    Applicant: SAMYANG CORPORATION
    Inventors: Jae Hoon LEE, Hoon RYU, Jun Seop IM
  • Publication number: 20240158664
    Abstract: The present invention relates to a coating composition, for a metal, with improved oil resistance and adhesiveness and a preparation method therefor, and a metal article coated with the composition and, more specifically, to a composition, a preparation method therefor, and a metal article coated with the composition, wherein the composition comprises a (meth)acrylic modified polyurethane containing a polymerization unit derived from an anhydrosugar alcohol-alkylene oxide adduct, a (meth)acrylic monomer, and an epoxy resin, and can provide a coating having both excellent adhesive strength to a metal and improved oil resistance.
    Type: Application
    Filed: February 16, 2022
    Publication date: May 16, 2024
    Applicant: SAMYANG CORPORATION
    Inventors: Jae Hoon LEE, Jun Seop IM
  • Publication number: 20230250213
    Abstract: The present invention pertains to: a polyol composition containing a polysaccharide alcohol, a polysaccharide alcohol-derived anhydrosugar alcohol, and an anhydrosugar alcohol polymer; and a polyurethane foam including same. More specifically, the present invention pertains to: a polyol composition containing a) a monoanhydrosugar alcohol, b) a dianhydrosugar alcohol, c) a polysaccharide alcohol, d) a polysaccharide alcohol-derived anhydrosugar alcohol, and e) at least one polymer of a) to d), wherein physical properties such as the number average molecular weight (Mn), polydispersity index (PDI), and average number of OH groups per molecule of the polyol composition satisfy certain levels, the polyol composition can contribute to the improvement of physical properties such as strength, elongation, and thermal insulation when used as a raw material for polyurethane, etc.
    Type: Application
    Filed: July 5, 2021
    Publication date: August 10, 2023
    Applicant: SAMYANG CORPORATION
    Inventors: Jun Seop IM, Hoon RYU
  • Publication number: 20230235112
    Abstract: The present invention relates to a hydrophilic acrylic-modified polyurethane and a method for preparing same, and a water-based paint composition using same and a manufacturing method thereof and, more specifically, to a hydrophilic acrylic-modified polyurethane and a method for preparing same, and a water-based paint composition using same and a manufacturing method thereof, the hydrophilic acrylic-modified polyurethane comprising: a polymerization unit derived from an anhydrosugar alcohol-alkylene oxide adduct; a polymerization unit derived from polyisocyanate; and a polymerization unit derived from hydroxyalkyl (meth)acrylate, and capable of providing a water-based paint composition in which eco-friendliness, adhesiveness (adhesion), crack resistance and water resistance are all improved.
    Type: Application
    Filed: June 16, 2021
    Publication date: July 27, 2023
    Applicant: SAMYANG CORPORATION
    Inventors: Jae Hoon LEE, Seong Ye SEO, Hoon RYU, Jun Seop IM
  • Patent number: 11649316
    Abstract: The present invention relates to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidation characteristics and to a method for manufacturing a polyurethane foam and, more specifically, to an isocyanate pre-polymer prepared by reaction of a polyisocyanate and a polyol component comprising a bio-polyol, to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidative characteristics by comprising the pre-polymer as one component, to a method for manufacturing a polyurethane foam using the same, and to an environmentally friendly polyurethane foam manufactured thereby.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: May 16, 2023
    Assignee: SAMYANG CORPORATION
    Inventors: Gwang Seok Song, Seung Hyun Yoo, Hoon Ryu, Hyuk Min Park, Jun Seop Im
  • Publication number: 20220389174
    Abstract: The present invention relates to a polycarbonate composite, a producing method thereof, and a molded article comprising same. More specifically, the present invention relates to: a polycarbonate composite comprising a matrix resin, which is a polycarbonate resin in which an anhydrosugar alcohol is copolymerized, and a nanomaterial dispersed in the matrix resin, wherein the polycarbonate composite exhibits a more remarkably improved tensile modulus and tensile strength than a conventional biopolycarbonate resin composite, by using, as a diol component, a solid dispersion or molten dispersion obtained by introducing a nanomaterial (dispersible substance) into an anhydrosugar alcohol (dispersion medium) in the form of an aqueous dispersion at the time of manufacture, and has uniform physical properties as the nanomaterial is uniformly dispersed in the composite; a producing method thereof; and a molded article comprising same.
    Type: Application
    Filed: November 11, 2020
    Publication date: December 8, 2022
    Applicant: SAMYANG CORPORATION
    Inventors: Jun Seop IM, Gwang Seok SONG, Hoon RYU, Seung Hyun YOO
  • Publication number: 20220372215
    Abstract: The present invention relates to a polyester resin including a diester compound and anhydrosugar alcohol, and a method for preparing same. The polyester resin has excellent heat resistance and mechanical properties and also has excellent biodegradability, as specific amounts of diester components including a succinic acid diester compound and diol components including anhydrosugar alcohol are copolymerized.
    Type: Application
    Filed: September 29, 2020
    Publication date: November 24, 2022
    Applicant: SAMYANG CORPORATION
    Inventors: Kyung Moo SHIN, Jun Seop IM, Hoon RYU
  • Publication number: 20220227927
    Abstract: The present invention relates to ether diol-derived polycarbonate diol of anhydrohexitol, a method for preparing same, polyurethane prepared from same and an adhesive comprising same and, more specifically, to polycarbonate diol, a method for preparing same, polyurethane prepared from same and an adhesive, paint and coating agent comprising same, the polycarbonate diol comprising repeating units derived from: ether diol of anhydrohexitol; carbonic diester; and random anhydrohexitol, and thus exhibiting enhanced color improving effect compared to existing polycarbonate diol and providing notably enhanced adhesion (T-peeling strength or shear strength) to polyurethane prepared by means of same.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 21, 2022
    Applicant: SAMYANG CORPORATION
    Inventors: Jun Seop IM, Seung Hyun YOO, Hoon RYU, Won Hyun JEON
  • Publication number: 20220177636
    Abstract: The present invention relates to a polyol composition comprising anhydrosugar alcohols and an anhydrosugar alcohol polymer and, more specifically, to a polyol composition comprising a monoanhydrosugar alcohol, a dianhydrosugar alcohol, and a polymer of a monoanhydrosugar alcohol and/or a dianhydrosugar alcohol, the polyol composition being usable in various fields since the physical property conditions of the composition, such as number average molecular weight (Mn), polydispersity index (PDI) and hydroxyl value, satisfy specific levels, and, particularly, being capable of remarkably improving the physical properties of a polyurethane, such as tensile strength and elongation, when used as a polyurethane chain extender.
    Type: Application
    Filed: June 3, 2020
    Publication date: June 9, 2022
    Applicant: SAMYANG CORPORATION
    Inventors: Jae Hoon LEE, Hoon RYU, Gwang Seok SONG, Jae Guk NOH, Seung Hyun YOO, Jun Seop IM, Won Hyun JEON
  • Publication number: 20210309670
    Abstract: The present invention relates to a diisocynate compound having anhydrosugar alcohol core and a preparation method therefor and, more specifically, to a diisocynate compound having anhydrosugar alcohol core and a preparation method therefor, wherein the diisocynate compound is prepared through a reaction with a nitrile compound, a hydrogenation reaction, and an end-group substitution reaction while a recyclable, plant-based anhydrosugar alcohol or anhydrosugar alcohol-alkylene glycol is used as a raw material, and the diisocynate compound can be utilized in various fields, such as soft or hard polyurethane expanded foams, molded foams, coating, adhesives or glues, fibers, and polymer synthesis.
    Type: Application
    Filed: August 8, 2019
    Publication date: October 7, 2021
    Applicant: SAMYANG CORPORATION
    Inventors: Seung Hyun YOO, Hoon RYU, Jun Seop IM, Gwang Seok SONG, Won Hyun JEON
  • Publication number: 20210238413
    Abstract: The present invention relates to a solid dispersion, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same and, more particularly, to a solid dispersion in which an inorganic or organic material-derived isotropic or anisotropic substance is used as a dispersoid and dispersed at room temperature in a solid-phase dispersion medium such as polyols and sugars, whereby the dispersion can be easily stored and used, reduce transportation cost, prevent or alleviate the aggregation or precipitation caused during the storage of products, with the results of working efficiency improvement and processing cost reduction, and, when applied to polyurethane, can increase strength and provide an improved strength, compared to conventional curing agent, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 5, 2021
    Applicant: SAMYANG CORPORATION
    Inventors: Gwang Seok SONG, Hoon RYU, Jun Seop IM, Seung Hyun YOO, Won Hyun JEON
  • Publication number: 20210147609
    Abstract: The present invention relates to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidation characteristics and to a method for manufacturing a polyurethane foam and, more specifically, to an isocyanate pre-polymer prepared by reaction of a polyisocyanate and a polyol component comprising a bio-polyol, to a composition for forming an environmentally friendly polyurethane foam, the composition having improved storage stability, air permeability, and anti-oxidative characteristics by comprising the pre-polymer as one component, to a method for manufacturing a polyurethane foam using the same, and to an environmentally friendly polyurethane foam manufactured thereby.
    Type: Application
    Filed: June 22, 2018
    Publication date: May 20, 2021
    Applicant: SAMYANG CORPORATION
    Inventors: Gwang Seok SONG, Seung Hyun YOO, Hoon RYU, Hyuk Min PARK, Jun Seop IM
  • Patent number: 10919907
    Abstract: The present invention relates to anhydrous sugar alcohol flakes and a manufacturing method therefor and, more specifically, to a particular form of anhydrous sugar alcohol flakes capable of preventing or mitigating caking occurring during the storage of products, and to a manufacturing method therefor.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: February 16, 2021
    Assignee: SAMYANG CORPORATION
    Inventors: Hyuk Min Park, Hoon Ryu, Jun Seop Im