Patents by Inventor Dong Cheol Sohn
Dong Cheol Sohn 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: 10287434Abstract: The present invention relates to a polymer resin composition that is capable of providing an environmentally friendly biomass-containing synthetic resin having improved chemical resistance. The present invention provides a polymer resin composition including: a polyester copolymer including a residue of a dicarboxylic acid component containing terephthalic acid, and a residue of a diol component including dianhydrohexitol; and 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, and which has a tensile strength loss defined in the following Equation 1 ranging from 0.5 to 30%.Type: GrantFiled: June 11, 2014Date of Patent: May 14, 2019Assignee: SK Chemicals, Co., Ltd.Inventors: Dong-Cheol Sohn, Tae-Woong Lee, Jong-Wook Shin
-
Patent number: 10138371Abstract: Disclosed is a resin composition for forming a steering wheel remote control bezel. The resin composition comprises: an amount of about 40 to 50 wt % of a polyester copolymer including a dicarboxylic acid component residue including terephthalic acid and a diol component residue including dianhydrohexitol; an amount of about 10 to 20 wt % of at least one copolymer selected from a group consisting of unsaturated nitrile-diene-based rubber-aromatic vinyl grafted copolymers and alkylmethacrylate-diene-based rubber-aromatic vinyl grafted copolymers; and an amount of about 40 to 50 wt % of polycarbonate. Further, an amount of 0.1 to 0.5 parts by weight of a phosphate base antioxidant-based on 100 parts by weight of the resin composition is further added to the resin composition.Type: GrantFiled: February 6, 2015Date of Patent: November 27, 2018Assignees: SK Chemicals Co., Ltd., Hyundai Motor Company, Kia Motors CorporationInventors: Dong-Cheol Sohn, Jong Ryang Kim, Tae-Woong Lee, Jong-Wook Shin, Han Ki Lee, Kyeong Hoon Jang, Dae Sik Kim, Myoung Ryoul Lee, Hak Soo Kim, Jung Gyun Noh
-
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
-
Patent number: 10087324Abstract: The present invention relates to parts for automobiles, electrical/electronic devices, home appliances, office equipment, or daily necessities, which are manufactured by using a polymer resin composition that is capable of providing an environmentally friendly biomass-containing synthetic resin having improved chemical resistance.Type: GrantFiled: June 11, 2014Date of Patent: October 2, 2018Assignee: SK CHEMICALS CO., LTD.Inventors: Dong-Cheol Sohn, Tae-Woong Lee, Jong-Wook Shin
-
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
-
Patent number: 9777151Abstract: A polymer resin composition capable of providing a synthetic resin showing physical properties of improved heat resistance or impact resistance is provided, in which the polymer resin composition includes a polyester tetrapolymer containing a residue of a dicarboxylic acid component containing terephthalic acid and a residue of a diol component containing dianhydrohexitol, and one or more terpolymers selected from the group consisting of an unsaturated nitrile-diene-based rubber-aromatic vinyl graft terpolymer, an alkyl methacrylate-diene-based rubber-aromatic vinyl graft terpolymer, and an alkyl methacrylate-silicone/alkyl acrylate graft terpolymer.Type: GrantFiled: February 6, 2014Date of Patent: October 3, 2017Assignee: SK CHEMICAL CO., LTDInventors: Dong-Cheol Sohn, Byung-Woo Ahn, Jong-Wook Shin, Jong-Ryang Kim
-
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
-
Patent number: 9725592Abstract: Provided are components for vehicles, electric/electronic products, home appliances, office equipments or household items, which are manufactured using a high heat resistant polymer resin composition capable of providing an environmentally friendly biomass-containing synthetic resin which exhibits improved chemical resistance.Type: GrantFiled: June 23, 2014Date of Patent: August 8, 2017Assignee: SK CHEMICALS CO., LTD.Inventors: Dong-Cheol Sohn, Tae-Woong Lee, Jong-Wook Shin
-
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
-
Publication number: 20160369092Abstract: Provided are components for vehicles, electric/electronic products, home appliances, office equipments or household items, which are manufactured using a high heat resistant polymer resin composition capable of providing an environmentally friendly biomass-containing synthetic resin which exhibits improved chemical resistance.Type: ApplicationFiled: June 23, 2014Publication date: December 22, 2016Applicant: SK Chemicals Co., Ltd.Inventors: Dong-Cheol SOHN, Tae-Woong LEE, Jong-Wook SHIN
-
Publication number: 20160369094Abstract: Provided is a polymer resin composition capable of providing an environmentally friendly biomass-containing synthetic resin which exhibits improved chemical resistance. Provided is a high heat resistant polymer resin composition having excellent chemical resistance, the composition including a polyester copolymer containing a residue of a dicarboxylic acid component containing terephthalic acid and a residue of a diol component containing dianhydrohexitol; 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 polytrimethylene terephthalate, and having 0.Type: ApplicationFiled: June 23, 2014Publication date: December 22, 2016Applicant: SK CHEMICALS CO., LTD.Inventors: Dong-Cheol SOHN, Tae-Woong LEE, Jong-Wook SHIN
-
Publication number: 20160347950Abstract: Disclosed is a resin composition for forming a steering wheel remote control bezel. The resin composition comprises: an amount of about 40 to 50 wt % of a polyester copolymer including a dicarboxylic acid component residue including terephthalic acid and a diol component residue including dianhydrohexitol; an amount of about 10 to 20 wt % of at least one copolymer selected from a group consisting of unsaturated nitrile-diene-based rubber-aromatic vinyl grafted copolymers and alkylmethacrylate-diene-based rubber-aromatic vinyl grafted copolymers; and an amount of about 40 to 50 wt % of polycarbonate. Further, an amount of 0.1 to 0.5 parts by weight of a phosphate base antioxidant-based on 100 parts by weight of the resin composition is further added to the resin composition.Type: ApplicationFiled: February 6, 2015Publication date: December 1, 2016Inventors: Dong-Cheol Sohn, Jong Ryang Kim, Tae-Woong Lee, Jong-Wook Shin, Han Ki Lee, Kyeong Hoon Jang, Dae Sik Kim, Myoung Ryoul Lee, Hak Soo Kim, Jung Gyun Noh
-
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
-
Publication number: 20160137835Abstract: The present invention relates to parts for automobiles, electrical/electronic devices, home appliances, office equipment, or daily necessities, which are manufactured by using a polymer resin composition that is capable of providing an environmentally friendly biomass-containing synthetic resin having improved chemical resistance.Type: ApplicationFiled: June 11, 2014Publication date: May 19, 2016Inventors: Dong-Cheol SOHN, Tae-Woong LEE, Jong-Wook SHIN
-
Publication number: 20160137834Abstract: The present invention relates to a polymer resin composition that is capable of providing an environmentally friendly biomass-containing synthetic resin having improved chemical resistance. The present invention provides a polymer resin composition including: a polyester copolymer including a residue of a dicarboxylic acid component containing terephthalic acid, and a residue of a diol component including dianhydrohexitol; and 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, and which has a tensile strength loss defined in the following Equation 1 ranging from 0.5 to 30%.Type: ApplicationFiled: June 11, 2014Publication date: May 19, 2016Applicant: SK Chemicals Co., Ltd.Inventors: Dong-Cheol SOHN, Tae-Woong LEE, Jong-Wook SHIN
-
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
-
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
-
Publication number: 20150368460Abstract: A polymer resin composition capable of providing a synthetic resin showing physical properties of improved heat resistance or impact resistance is provided, in which the polymer resin composition includes a polyester tetrapolymer containing a residue of a dicarboxylic acid component containing terephthalic acid and a residue of a diol component containing dianhydrohexitol, and one or more terpolymers selected from the group consisting of an unsaturated nitrile-diene-based rubber-aromatic vinyl graft terpolymer, an alkyl methacrylate-diene-based rubber-aromatic vinyl graft terpolymer, and an alkyl methacrylate-silicone/alkyl acrylate graft terpolymer.Type: ApplicationFiled: February 6, 2014Publication date: December 24, 2015Applicant: SK CHEMICALS CO., LTD.Inventors: Dong-Cheol SOHN, Byung-Woo AHN, Jong-Wook SHIN, Jong-Ryang KIM
-
Patent number: 8507623Abstract: Disclosed are a maleimide-?-alkylstyrene-based, heat-resistant bulk terpolymer and a preparation process thereof. More specifically, disclosed are a bulk terpolymer, comprising 5-60 wt % of an N-substituted maleimide monomer, 10-70 wt % of an ?-alkylstyrene monomer and 5-50 wt % of an unsaturated nitrile monomer, as well as a continuous bulk polymerization process for preparing the same. The disclosed bulk terpolymer has a weight-average molecular weight (Mw) of 70,000-300,000 and a glass transition temperature of 140-200° C., shows excellent high-temperature thermal stability and heat resistance and a remarkably low melt viscosity, and thus is excellent not only in processability, but also in productivity, processability, moldability and blendability, when it is blended with other resins. Also, the continuous bulk polymerization process is equipped with a devolatilizer and enables the bulk terpolymer to be produced at low cost and high efficiency.Type: GrantFiled: September 11, 2007Date of Patent: August 13, 2013Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Dong Cheol Sohn, Sup Joo Lee
-
Patent number: 8487057Abstract: Disclosed are a maleimide-a-alkylstyrene-based, heat-resistant bulk tetrapolymer and a preparation process thereof. More specifically, disclosed are a bulk tetrapolymer, comprising 5-60 wt % of an N-substituted maleimide monomer, 10-70 wt % of an a-alkylstyrene monomer, 5-50 wt % of an unsaturated nitrile monomer and 3-50 wt % of an aromatic vinyl monomer, as well as a continuous bulk polymerization process for preparing the same. The disclosed bulk tetrapolymer has a weight-average molecular weight (Mw) of 70,000-300,000 and a glass transition temperature of 150-200 DEG C., shows excellent high-temperature thermal stability and heat resistance and a remarkably low melt viscosity, and thus is excellent not only in processability, but also in productivity, processability, moldability and blendability, when it is blended with other resins. Also, the continuous bulk polymerization process is equipped with a devolatilizer and enables the bulk tetrapolymer to be produced at low cost and high efficiency.Type: GrantFiled: December 7, 2011Date of Patent: July 16, 2013Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Dong Cheol Sohn, Sup Joo Lee