Patents by Inventor Kye Yune Lee
Kye Yune Lee 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).
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Patent number: 10501604Abstract: The present invention relates to a polylactic acid resin composition having eco-friendly properties, which can be effectively used as a packaging material due to improved flexibility and moisture resistance, as well as superior general properties such as mechanical properties, transparency, heat resistance, an anti-blocking property, and film processability. The inventive polylactic acid resin composition comprises a polylactic acid resin comprising a hard segment comprising a polylactic acid repeating unit and a soft segment comprising a polyolefin-based polyol repeating unit in which polyolefin-based polyol structural units are linked in a linear or branched manner via a urethane bond or an ester bond, wherein the organic carbon content (% Cbio) of biomass-based carbon, as defined in Equation 1, is at least 60 wt %; and an antioxidant.Type: GrantFiled: April 2, 2014Date of Patent: December 10, 2019Assignee: SK Chemicals Co., Ltd.Inventors: Young-Man Yoo, Jae-il Chung, Kye Yune Lee, Sung-wan Jeon, Min-young Kim
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Patent number: 10100193Abstract: The present invention relates to a polymer resin composition including: one or more copolymers selected from the group consisting of an unsaturated nitrile-diene-based rubber-aromatic vinyl graft copolymer, an alkyl methacrylate-diene-based rubber-aromatic vinyl graft copolymer, and an alkyl methacrylate-silicone/alkyl acrylate graft copolymer; a polyester resin; a polycarbonate resin; and a block copolymer including two or more alkylene-based repeating units having 2 to 10 carbon atoms and an aromatic vinyl-based repeating unit, and a molded article thereof. According to the present invention, a polymer resin composition providing an environment-friendly biomass-containing synthetic resin representing improved chemical resistance, and a polymer resin molded article obtained using the same may be provided.Type: GrantFiled: September 4, 2014Date of Patent: October 16, 2018Assignee: SK CHEMICALS CO., LTD.Inventors: Dong-Cheol Sohn, Kye Yune Lee, Tae-Woong Lee, Jong-Wook Shin
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Publication number: 20180251635Abstract: The present invention relates to a polymer resin composition having excellent compatibility between components, improved mechanical properties, such as heat resistance and tensile strength, and improved molding workability, and to a molded product thereof. Specifically, the polymer resin composition may include: a polyester resin containing a diol-component residue including a heterocyclic aliphatic diol having 3 to 20 carbon atoms and a dicarboxylic acid-component residue, and having a glass transition temperature (measured by DSC) of 90° C. or higher; a polycarbonate resin; a polysiloxane-polycarbonate copolymer; and an impact reinforcement member including a core containing a diene-b(meth)acrylate/aromatic vinyl copolymer, and an outer layer shell containing an aromatic vinyl-based polymer.Type: ApplicationFiled: August 26, 2016Publication date: September 6, 2018Inventors: Dong-Cheol SOHN, Kye Yune LEE
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Publication number: 20170313118Abstract: The present invention relates to a multilayer plastic card including at least one polyester resin layer including a polyester resin including a residue of a diol component including 0.1 mol % to 85 mol % of isosorbide and a residue of a dicarboxylic acid component.Type: ApplicationFiled: October 29, 2015Publication date: November 2, 2017Inventors: Ik-Jun PYO, Won-Jae YOON, Kye Yune LEE, Jihwan BANG
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Publication number: 20170275444Abstract: A polymer resin composition exhibiting low-gloss and excellent scratch resistance is provided, in which the polymer resin composition includes polytrimethylene terephthalate; an unsaturated nitrile-diene-based rubber-aromatic vinyl graft copolymer; and a glass fiber.Type: ApplicationFiled: October 13, 2015Publication date: September 28, 2017Inventors: Dong-Cheol SOHN, Kye Yune LEE, Jong-Wook SHIN
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Patent number: 9580596Abstract: A chemical resistant polymer composition for a center fascia includes a resin composition consisting of 10 to 20% by weight of a polyester copolymer containing a residue of a dicarboxylic acid component containing terephthalic acid and a residue of a diol component containing dianhydrohexitoll; 15 to 25% by weight of polytrimethyleneterephthalate; 10 to 20% by weight of one or more copolymers selected from the group consisting of an unsaturated nitrile-diene-based rubber-aromatic vinyl graft copolymer, an alkylmethacrylate-diene-based rubber-aromatic vinyl graft copolymer, and an alkylmethacrylate-silicone/alkylacrylate graft copolymer; and 50 to 65% by weight of polycarbonate based on the weight of the resin composition. The polymer composition further comprises 0.1 to 10 parts by weight of a phosphite-based antioxidant, based on 100 parts by weight of the resin composition.Type: GrantFiled: November 2, 2015Date of Patent: February 28, 2017Assignees: SK CHEMICALS CO., LTD., HYUNDAI MOTOR COMPANYInventors: Han Ki Lee, Dae Sik Kim, Jung Gyun Noh, Dong-Cheol Sohn, Kye Yune Lee, Jong-Wook Shin
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Patent number: 9567429Abstract: The present invention relates to a polylactic acid resin film which has excellent flexibility, mechanical properties, stability, and transparency while having a specific biodegradability of the polylactic acid resin, and is useful as a packaging material. The present invention provides a polylactic acid resin film, comprising a polylactic acid resin including a hard segment comprising a specific polylactic acid repeating unit, and a soft segment comprising a polyurethane polyol repeating unit in which a specific polyether polyol repeating units are linearly linked via a urethane bond, wherein the total Young's modulus in both machine direction and transverse direction of the film is 350 to 750 kgf/mm2, and the total initial tensile strength in both machine direction and transverse direction of the film is 20 kgf/mm2 or more.Type: GrantFiled: November 2, 2011Date of Patent: February 14, 2017Inventors: Young-Man Yoo, Jae-Il Chung, Tae-Woong Lee, Kye-Yune Lee
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Patent number: 9567428Abstract: The present invention relates to a polylactic acid resin composition useful as a packaging material which has not only improved flexibility but also superior external appearance and superior properties such as mechanical property, transparency, heat resistance, anti-blocking property, workability of a film, and the like, and a packaging film including the same. The polylactic acid resin composition comprises a polylactic acid resin including a hard segment comprising a polylactic acid repeating unit and a soft segment comprising a polyurethane polyol repeating unit in which polyether polyol repeating units are linearly linked via a urethane bond; and a specific content of antioxidant.Type: GrantFiled: November 2, 2011Date of Patent: February 14, 2017Inventors: Young-Man Yoo, Tae-Woong Lee, Kye-Yune Lee, Jae-Il Chung
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Patent number: 9499658Abstract: The present invention relates to a polylactic acid resin and a packaging film comprising the same, wherein the polylactic acid resin is useful as a packaging material due to excellent properties including heat resistance as well as optimized flexibility. The polylactic acid resin comprises: a hard segment including a predetermined polylactic acid repeating unit; and a soft segment including a polyurethane polyol repeating unit in which certain polyether-based polyol repeating units are linearly connected in a medium of a urethane bond. In addition, the polylactic acid resin has a glass transition temperature (Tg) of 25-55° C.Type: GrantFiled: November 2, 2011Date of Patent: November 22, 2016Inventors: Young-Man Yoo, Tae-Woong Lee, Kye-Yune Lee, Jae-Il Chung
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Patent number: 9469719Abstract: The present invention relates to a polylactic acid resin and a packaging film comprising the same, wherein the polylactic acid resin is useful as a packaging material due to excellent properties including heat resistance as well as optimized flexibility. The polylactic acid resin comprises: a hard segment including a predetermined polylactic acid repeating unit; and a soft segment including a polyurethane polyol repeating unit in which certain polyether-based polyol repeating units are linearly connected in a medium of a urethane bond. In addition, the polylactic acid resin has a glass transition temperature (Tg) of 25-55° C.Type: GrantFiled: November 2, 2011Date of Patent: October 18, 2016Inventors: Young-Man Yoo, Tae-Woong Lee, Kye-Yune Lee, Jae-Il Chung
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Publication number: 20160251512Abstract: The present invention relates to a polymer resin composition including: one or more copolymers selected from the group consisting of an unsaturated nitrile-diene-based rubber-aromatic vinyl graft copolymer, an alkyl methacrylate-diene-based rubber-aromatic vinyl graft copolymer, and an alkyl methacrylate-silicone/alkyl acrylate graft copolymer; a polyester resin; a polycarbonate resin; and a block copolymer including two or more alkylene-based repeating units having 2 to 10 carbon atoms and an aromatic vinyl-based repeating unit, and a molded article thereof. According to the present invention, a polymer resin composition providing an environment-friendly biomass-containing synthetic resin representing improved chemical resistance, and a polymer resin molded article obtained using the same may be provided.Type: ApplicationFiled: September 4, 2014Publication date: September 1, 2016Inventors: Dong-Cheol SOHN, Kye Yune LEE, Tae-Woong LEE, Jong-Wook SHIN
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Publication number: 20160122536Abstract: A chemical resistant polymer resin composition for an overhead console includes a polyester resin including a residue of a dicarboxylic acid component containing terephthalic acid and a residue of a diol component containing 5 to 60 mol % of isosorbide, 5 to 80 mol % of cyclohexanedimethanol, and a residual amount of other diol compounds; polycarbonate; and an unsaturated nitrile-aromatic vinyl-alkylacrylate graft copolymer based on the total weight of the polyester resin, polycarbonate, and unsaturated nitrile-aromatic vinyl-alkylacrylate graft copolymer. The composition further includes 0.1 to 10 parts by weight of a weather resistant additive, based on 100 parts by weight of the polyester resin, polycarbonate, and unsaturated nitrile-aromatic vinyl-alkylacrylate graft copolymer.Type: ApplicationFiled: October 27, 2015Publication date: May 5, 2016Applicants: HYUNDAI MOTOR COMPANY, SK CHEMICALS CO., LTD.Inventors: Dong-Cheol SOHN, Kye Yune LEE, Jong-Wook SHIN, Han Ki LEE, Kyeong Hoon JANG, Hak Soo KIM
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Publication number: 20160122537Abstract: A chemical resistant polymer composition for a center fascia includes a resin composition consisting of 10 to 20% by weight of a polyester copolymer containing a residue of a dicarboxylic acid component containing terephthalic acid and a residue of a diol component containing dianhydrohexitoll; 15 to 25% by weight of polytrimethyleneterephthalate; 10 to 20% by weight of one or more copolymers selected from the group consisting of an unsaturated nitrile-diene-based rubber-aromatic vinyl graft copolymer, an alkylmethacrylate-diene-based rubber-aromatic vinyl graft copolymer, and an alkylmethacrylate-silicone/alkylacrylate graft copolymer; and 50 to 65% by weight of polycarbonate based on the weight of the resin composition. The polymer composition further comprises 0.1 to 10 parts by weight of a phosphite-based antioxidant, based on 100 parts by weight of the resin composition.Type: ApplicationFiled: November 2, 2015Publication date: May 5, 2016Inventors: Han Ki LEE, Dae Sik KIM, Jung Gyun NOH, Dong-Cheol SOHN, Kye Yune LEE, Jong-Wook SHIN
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Publication number: 20160053089Abstract: The present invention relates to a polylactic acid resin composition having eco-friendly properties, which can be effectively used as a packaging material due to improved flexibility and moisture resistance, as well as superior general properties such as mechanical properties, transparency, heat resistance, an anti-blocking property, and film processability. The inventive polylactic acid resin composition comprises a polylactic acid resin comprising a hard segment comprising a polylactic acid repeating unit and a soft segment comprising a polyolefin-based polyol repeating unit in which polyolefin-based polyol structural units are linked in a linear or branched manner via a urethane bond or an ester bond, wherein the organic carbon content (% Cbio) of biomass-based carbon, as defined in Equation 1, is at least 60 wt %; and an antioxidant.Type: ApplicationFiled: April 2, 2014Publication date: February 25, 2016Inventors: Young-Man Yoo, Jae-il Chung, Kye Yune Lee, Sung-wan Jeon, Min-young Kim
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Patent number: 9120949Abstract: Disclosed are a polyester binder resin for coating which is copolymerized with lactic acid or a compound derived therefrom and isosorbide, and thus has a high content of biomass-derived compounds, and exhibits superior coating hardness, contamination resistance, hydrolytic resistance, processability and the like, and a coating composition comprising the same. The polyester resin binder for coating is copolymerized with a diacid component, a diol component comprising 1 to 60 moles of isosorbide, with respect to a total diol component, and 1 to 50% by weight of lactic acid or a compound derived therefrom, with respect to the total amount of resin polymerization reactants, wherein the polyester resin binder for coating has a structure in which a diacid moiety derived from the diacid component, a diol moiety derived from the diol component, and a hydroxyl monoacid moiety derived from the lactic acid or a compound derived therefrom are repeated.Type: GrantFiled: April 5, 2012Date of Patent: September 1, 2015Assignee: SK Chemicals Co., Ltd.Inventors: Dong-Jin Kim, Kye-Yune Lee
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Publication number: 20150147549Abstract: The present invention relates to a polylactic acid resin which is environment-friendly and is useful as a packaging material due to its properties including excellent heat resistance and flexibility, and a packaging film comprising the same. The polylactic acid resin comprises a hard segment comprising a polylactic acid repeating unit; and a soft segment comprising a polyurethane polyol repeating unit in which polyether polyol repeating units are linearly linked via a urethane bond, wherein the polylactic acid resin has an organic carbon content (% Cbio) from the biomass source of 60 wt % or more.Type: ApplicationFiled: May 29, 2013Publication date: May 28, 2015Applicant: SKI CHEMICALS CO.,LTD.Inventors: Young-Man Yoo, Jae-Il Chung, Tae-Woong Lee, Kye Yune Lee, Sung-Wan Jeon
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Patent number: 8883386Abstract: Disclosed herein is a toner for use in an electronic photograph-duplicating process or in an electrostatic printing process, and a polyester resin included in the toner as a binder. The polyester resin comprises lactic acids (D or L-lactic acids) or lactides (D or L-lactides) which are derivative compounds thereof, and dianhydrohexitols which are bio-derived sugar derivatives.Type: GrantFiled: January 6, 2011Date of Patent: November 11, 2014Assignee: SK Chemicals Co., Ltd.Inventors: Young Man Yoo, Kye Yune Lee, Tae Woong Lee, Jong Wook Shin
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Publication number: 20140302297Abstract: The present invention relates to a polylactic acid resin composition useful as a packaging material which has not only improved flexibility but also superior external appearance and superior properties such as mechanical property, transparency, heat resistance, anti-blocking property, workability of a film, and the like, and a packaging film including the same. The polylactic acid resin composition comprises a polylactic acid resin including a hard segment comprising a polylactic acid repeating unit and a soft segment comprising a polyurethane polyol repeating unit in which polyether polyol repeating units are linearly linked via a urethane bond; and a specific content of antioxidant.Type: ApplicationFiled: November 2, 2011Publication date: October 9, 2014Applicant: SK CHEMICALS CO., LTD.Inventors: Young-Man Yoo, Tae-Woong Lee, Kye-Yune Lee, Jae-Il Chung
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Publication number: 20140037931Abstract: The present invention relates to a polylactic acid resin film which has excellent flexibility, mechanical properties, stability, and transparency while having a specific biodegradability of the polylactic acid resin, and is useful as a packaging material. The present invention provides a polylactic acid resin film, comprising a polylactic acid resin including a hard segment comprising a specific polylactic acid repeating unit, and a soft segment comprising a polyurethane polyol repeating unit in which a specific polyether polyol repeating units are linearly linked via a urethane bond, wherein the total Young's modulus in both machine direction and transverse direction of the film is 350 to 750 kgf/mm2, and the total initial tensile strength in both machine direction and transverse direction of the film is 20 kgf/mm2 or more.Type: ApplicationFiled: November 2, 2011Publication date: February 6, 2014Applicant: SK CHEMICALS CO., LTD.Inventors: Young-Man Yoo, Jae-Il Chung, Tae-Woong Lee, Kye-Yune Lee
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Patent number: 8633295Abstract: A blend of polylactic acid resin and copolyester resin and a molded article using the same having superior impact resistance and heat resistance are disclosed. The blend of polylactic acid resin and copolyester resin includes: 5 to 95 weight % of polylactic acid resin; and 5 to 95 weight % of copolyester resin which is a copolymerization product of an acid component including terephthalic acid and a diol component including 5 to 99 mol % of 1,4-cyclohexanedimethanol and 1 to 60 mol % of isosorbide(bio monomer), and has a repeated structure of an acid moiety derived from the acid component and a diol moiety derived from the diol component.Type: GrantFiled: May 19, 2011Date of Patent: January 21, 2014Assignee: SK Chemicals Co., Ltd.Inventors: Roy Lee, Jong-Ryang Kim, Kye-Yune Lee, Jong-Wook Shin, Young-Man Yoo