Patents by Inventor Mi Jung Yun
Mi Jung Yun 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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Publication number: 20190040572Abstract: Embodiments of the present disclosure relate to artificial leather and a method of manufacturing the same, and more particularly, to suede artificial leather for a vehicle seat with improved light fastness and tactile sensitivity, and a method of manufacturing the same. In accordance with one aspect of the present disclosure, a method of manufacturing artificial leather comprise needle-punching a sea-island type ultrafine conjugated yarn having a sea component of easily soluble polyester and an island component of a polyester black dope-dyed yarn to form a nonwoven fabric; wet-impregnating a polyurethane resin in the nonwoven fabric; eluting the sea component of the nonwoven fabric; dyeing and reduction-cleaning the nonwoven fabric from which the sea component is eluted; and performing in-bath flame-retardant treatment on the cleaned nonwoven fabric.Type: ApplicationFiled: December 1, 2017Publication date: February 7, 2019Inventors: Hyemin LEE, Won Jin SEO, Gun KANG, SoonJoon JUNG, Mi Jung YUN, Hyuk-Jae YOU, Jong-Ho PARK, Eung-Min LEE
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Publication number: 20180334773Abstract: Provided herein is an eco-friendly artificial leather for an interior of an automobile and a manufacturing method thereof. The eco-friendly product is manufactured using a method that is compatible with various environmental regulations such as reduction of greenhouse gas emissions. The artificial leather includes a bio urethane-containing skin surface layer which uses biomass-derived components extracted from vegetable components, a solvent-free bio urethane adhesive layer, and a bio fiber base layer. The layers are sequentially stacked to minimize the use of organic solvents and components that are harmful to the human body.Type: ApplicationFiled: November 21, 2017Publication date: November 22, 2018Applicants: Hyundai Motor Company, Kia Motors Corporation, BAIKSAN Co., Ltd., HYUNDAI DYMOS INC.Inventors: Gun KANG, Mi Jung YUN, Soon Joon JUNG, Hye Min LEE, Yoon Jong CHA, Seong Deuk AN, Seung Ho CHO, Jae Yong KO, Jun Ho SONG, Hye Rin CHOI
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Publication number: 20180258584Abstract: A method for manufacturing a high density artificial leather, may include (a) manufacturing a long fiber-type non-woven fabric having an areal weight of 400 to 500 g/m2 and an apparent density of 0.3 to 0.6 g/cm3 by self-twist spinning a sea component polymer fiber and an island component polymer fiber; (b) shrinking the long fiber-type non-woven fabric with hot water; (c) eluting the sea component polymer fiber from the shrunken non-woven fabric by immersing the shrunken non-woven fabric in an aqueous alkaline solution; and (d) impregnating a polymer elastomer in a non-woven fabric from which the sea component polymer fiber is eluted, to manufacture a long fiber-type fine yarn non-woven fabric.Type: ApplicationFiled: November 3, 2017Publication date: September 13, 2018Applicants: Hyundai Motor Company, Kia Motors Corporation, BAIKSAN Co., Ltd.Inventors: Gun Kang, Hye Min Lee, Mi Jung Yun, Soon Joon Jung, Sung Deuk Ahn, Tae Ho Hyun, Jun Suk Park
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Publication number: 20180117877Abstract: A method for manufacturing hybrid-natural leather having excellent appearance quality and good durability such as light resistance, water resistance, elongation and abrasion resistance is provided. Particularly, the fiber layer having a similar structure to the natural leather is introduced to the natural leather and the natural leather and the fiber layer are bonded and fused with each other under a specific condition to manufacture hybrid-natural leather having excellent durability while preventing wrinkles, stretching, and the like from being generated.Type: ApplicationFiled: February 22, 2017Publication date: May 3, 2018Applicant: HYUNDAI MOTOR COMPANYInventors: Mi Jung YUN, Hye Min LEE, Gun KANG, Soon Joon JUNG, Jang Won LEE, Hak Nam LEE, Doo Yong LEE, Sang Hyun KIM
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Patent number: 9828572Abstract: A method is provided for removing a volatile organic compound (VOC) contained in an artificial leather fabric and odor caused by the volatile organic compound by coating the artificial leather fabric with an adsorbent which reacts with a noxious substance containing the volatile organic compound (VOC); and immersing; washing; and drying the reacted artificial leather fabric. The method includes coating the adsorbent and immobilizing the volatile organic compound through a reaction, to prevent volatilization of the organic compound or reduce an amount thereof. Further, after the reaction between the artificial leather fabric and the adsorbent, the artificial leather fabric is washed, to remove the volatile organic compound immobilized on a surface of the fabric from the artificial leather.Type: GrantFiled: September 3, 2014Date of Patent: November 28, 2017Assignee: Hyundai Motor Company Kolonglotech, Inc.Inventors: Gun Kang, Hyun Joo Seo, Mi Jung Yun, Dae Seok Choi, Yong Tae Ha, Min Jeong Kim, Ju Ahn Kim, Ki Eop Kim, Yoon Jung Kwon, Shin Hyouk Kang
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Patent number: 9644312Abstract: Disclosed is a synthetic leather produced by directly coating a water-soluble synthetic resin solution on the surface of a fabric to form a film thereon such that fine gaps formed on the fabric are partially left open to have a certain degree of air permeability. In particular, a brushing process is used for brushing the surface of a fabric using a brushing machine to raise a nap. Next, a hydrolysis-resistant and flame-retardant resin solution is coated on the back of the fabric, which is opposite to the surface on which the nap is raised, to reinforce the back of the fabric. A film forming process then applies a water-soluble polyurethane resin solution to the nap raised on the surface of the fabric to form a film on the surface of the fabric thereby producing a synthetic leather product that has air permeability properties that are superior to genuine leather.Type: GrantFiled: October 24, 2011Date of Patent: May 9, 2017Assignees: Hyundai Motor Company, Kia Motors Corporation, Il Jeong Industrial Co., Ltd.Inventors: Gun Kang, Mi Jung Yun, Jeong Seok Oh, Seong Hoon Lee, Kie Youn Jeong, Chang Suk Koh
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Patent number: 9574072Abstract: An ultra-light polyurethane artificial leather composition comprises a one-component type blocked polyurethane high solid resin of 100 parts per weight, a capsule-type hollow microsphere of 1 to 10 parts per weight, a curing agent of 1 to 10 parts per weight, and a high solid type toner of 1 to 20 parts per weight.Type: GrantFiled: December 12, 2014Date of Patent: February 21, 2017Assignees: Hyundai Motor Company, Kia Motors Corporation, Dae Won Chemical Co., Ltd., Dongahchemical Co., Ltd.Inventors: Mi Jung Yun, Gun Kang, Jeong Seok Oh, Kie Youn Jeong, Soon Joon Jung, Doo Soo Kim, Hyun Joo Seo, Jung Lee, Young Kyu Rhim, Young Koo Lee, Ju Seob Kim, Woo Seung Shin, Dae Kyung Kim, Choon Gil Kwon, Chan Hee Lee
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Publication number: 20160159967Abstract: The present disclosure relates to functional polyurethane foams, and in particular, to functional polyurethane foams including a reaction product of a resin premix and an isocyanate component, wherein the resin premix includes a polyol component and a foaming agent, and the isocyanate component includes monomeric methylene diphenyl diisocyanate (MMDI) in 4 to 70% by weight, carbodiimide methylene diphenyl diisocyanate (CMDI) in 5 to 70% by weight and polymeric methylene diphenyl diisocyanate (PMDI) in 10 to 80% by weight, with respect to the total weight of the isocyanate component. The functional polyurethane foams of the present disclosure are capable of being used for vehicle seats and minimizing vibration transmissibility by absorbing a considerable portion of vibrations that occur while driving.Type: ApplicationFiled: December 3, 2014Publication date: June 9, 2016Inventors: Jeong-Seok OH, Gun KANG, Sung-Hyun LEE, Hye-Min LEE, Soon-Joon JUNG, Mi-Jung YUN, Kwon-Yong CHOI, Gi-Man KIM, Byeong-Guk LIM
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Publication number: 20160002444Abstract: An ultra-light polyurethane artificial leather composition comprises a one-component type blocked polyurethane high solid resin of 100 parts per weight, a capsule-type hollow microsphere of 1 to 10 parts per weight, a curing agent of 1 to 10 parts per weight, and a high solid type toner of 1 to 20 parts per weight.Type: ApplicationFiled: December 12, 2014Publication date: January 7, 2016Inventors: Mi Jung YUN, Gun KANG, Jeong Seok OH, Kie Youn JEONG, Soon Joon JUNG, Doo Soo KIM, Hyun Joo SEO, Jung LEE, Young Kyu RHIM, Young Koo LEE, Ju Seob KIM, Woo Seung SHIN, Dae Kyung KIM, Choon Gil KWON, Chan Hee LEE
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Publication number: 20150140311Abstract: A method is provided for removing a volatile organic compound (VOC) contained in an artificial leather fabric and odor caused by the volatile organic compound by coating the artificial leather fabric with an adsorbent which reacts with a noxious substance containing the volatile organic compound (VOC); and immersing; washing; and drying the reacted artificial leather fabric. The method includes coating the adsorbent and immobilizing the volatile organic compound through a reaction, to prevent volatilization of the organic compound or reduce an amount thereof. Further, after the reaction between the artificial leather fabric and the adsorbent, the artificial leather fabric is washed, to remove the volatile organic compound immobilized on a surface of the fabric from the artificial leather.Type: ApplicationFiled: September 3, 2014Publication date: May 21, 2015Applicants: KOLONGLOTECH. INC., HYUNDAI MOTOR COMPANYInventors: Gun Kang, Hyun Joo Seo, Mi Jung Yun, Dae Seok Choi, Yong Tae Ha, Min Jeong Kim, Ju Ahn Kim, Ki Eop Kim, Yoon Jung Kwon, Shin Hyouk Kang
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Patent number: 8877289Abstract: A method for anti-stain treatment of fabric is disclosed. The method for anti-stain treatment of fabric includes: immersing fabric in an aqueous solution containing a telomerized perfluoroalkyl acrylate copolymer, and a crosslinking agent, such as an isocyanate crosslinking agent; dehydrating the immersed fabric; drying the dehydrated fabric; heat treating the dried fabric; and coating the heat-treated fabric with a flame retardant, such as an acrylic flame retardant, to provide flame retardancy. The method provides a car seat fabric having superior stain resistance, water repellency and oil repellency without degradation of other properties required for the car seat fabric, such as flame retardancy, lightfastness, frictional coloration, or the like. The method is widely applicable to commercially applicable car seat fabrics, including flat woven, flat tricot, double raschel, or the like.Type: GrantFiled: May 16, 2011Date of Patent: November 4, 2014Assignees: Hyundai Motor Company, Kolonglotech, Inc.Inventors: Mi Jung Yun, Jeong Seok Oh, Gun Kang, Kie Youn Jeong, Shin Hyouk Kang, Yeun Bong Park, Hyung Kook Kim, Yun Mi Kim
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Publication number: 20130263383Abstract: Disclosed is a method of fabricating an automotive seat cover leather. The method includes a preparing process, a tanning process, a neutralizing process, a retanning process, an elastic material adding process, a dyeing/fatliquoring process, and a surface fixing process. After the leather has gone through the tanning process and neutralizing process, the retanning process adds a tanning agent to the leather. The elastic material adding process adds a silicon-based elastic material to induce elasticity in the retanned leather. The dyeing/fatliquoring process adds a dye to the leather in which the elastic material has been added and adds an anion fatliquoring agent to the leather to provide flexibility. The surface fixing process fixes the elastic material, dye, and fatliquoring agent on and in the leather.Type: ApplicationFiled: August 29, 2012Publication date: October 10, 2013Applicants: KOREA INSTITUTE OF FOOTWEAR & LEATHER TECHNOLOGY, HYUNDAI MOTOR COMPANYInventors: Gun Kang, Mi Jung Yun, Won-Ju Kim, Sang-Chul Lee, Eun-Chul Shin
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Publication number: 20120308726Abstract: Disclosed is a synthetic leather produced by directly coating a water-soluble synthetic resin solution on the surface of a fabric to form a film thereon such that fine gaps formed on the fabric are partially left open to have a certain degree of air permeability. In particular, a brushing process is used for brushing the surface of a fabric using a brushing machine to raise a nap. Next, a hydrolysis-resistant and flame-retardant resin solution is coated on the back of the fabric, which is opposite to the surface on which the nap is raised, to reinforce the back of the fabric. A film forming process then applies a water-soluble polyurethane resin solution to the nap raised on the surface of the fabric to form a film on the surface of the fabric thereby producing a synthetic leather product that has air permeability properties that are superior to genuine leather.Type: ApplicationFiled: October 24, 2011Publication date: December 6, 2012Applicants: HYUNDAI MOTOR COMPANY, IL JEONG INDUSTRIAL CO., LTD., KIA MOTORS CORPORATIONInventors: Gun Kang, Mi Jung Yun, Jeong Seok Oh, Seong Hoon Lee, Kie Youn Jeong, Chang Suk Koh
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Publication number: 20120094564Abstract: A method for anti-stain treatment of fabric is disclosed. The method for anti-stain treatment of fabric includes: immersing fabric in an aqueous solution containing a telomerized perfluoroalkyl acrylate copolymer, and a crosslinking agent, such as an isocyanate crosslinking agent; dehydrating the immersed fabric; drying the dehydrated fabric; heat treating the dried fabric; and coating the heat-treated fabric with a flame retardant, such as an acrylic flame retardant, to provide flame retardancy. The method provides a car seat fabric having superior stain resistance, water repellency and oil repellency without degradation of other properties required for the car seat fabric, such as flame retardancy, lightfastness, frictional coloration, or the like. The method is widely applicable to commercially applicable car seat fabrics, including flat woven, flat tricot, double raschel, or the like.Type: ApplicationFiled: May 16, 2011Publication date: April 19, 2012Applicants: KOLON GLOTECH. INC., HYUNDAI MOTOR COMPANYInventors: Mi Jung Yun, Jeong Seok Oh, Gun Kang, Kie Youn Jeong, Shin Hyouk Kang, Yeun Bong Park, Hyung Kook Kim, Yun Mi Kim
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Patent number: 7867573Abstract: The present invention relates to methods of forming an aqueous coating on a plastic sheet surface for vehicle interior equipment, comprising the steps of: coating the plastic sheet with a primary composition, the primary composition comprising chlorinated aqueous olefin resin; baking the resulting plastic sheet; coating the baked sheet with a secondary composition, the secondary composition comprising aliphatic urethane; and baking the resulting plastic sheet.Type: GrantFiled: December 29, 2006Date of Patent: January 11, 2011Assignee: Hyundai Motor CompanyInventors: In Soo Han, Kie Youn Jeong, Mi Jung Yun
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Patent number: 7825184Abstract: The present invention relates to a thermoelastic polyolefin-based elastomer sheet composition for water based coating treatment, which comprises a partially crosslinked thermoelastic polyolefin-based elastomer resin, a non-crosslinked thermoelastic polyolefin-based elastomer resin, a polypropylene resin, an ethylene octene rubber resin, a linear low density polyethylene resin, polyethylene master batch containing a lubricant, and an inorganic filler, the composition being useful for vehicular inner parts (e.g., crash pad) due to its superior elongation, heat resistance, humidity resistance and molding property.Type: GrantFiled: November 1, 2007Date of Patent: November 2, 2010Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Mi Jung Yun, Ki Eyoun Jeong, In Soo Han
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Publication number: 20080249223Abstract: The present invention relates to a thermoelastic polyolefin-based elastomer sheet composition for water based coating treatment, which comprises a partially crosslinked thermoelastic polyolefin-based elastomer resin, a non-crosslinked thermoelastic polyolefin-based elastomer resin, a polypropylene resin, an ethylene octene rubber resin, a linear low density polyethylene resin, polyethylene master batch containing a lubricant, and an inorganic filler, the composition being useful for vehicular inner parts (e.g., crash pad) due to its superior elongation, heat resistance, humidity resistance and molding property.Type: ApplicationFiled: November 1, 2007Publication date: October 9, 2008Applicant: Hyundai Motor CompanyInventors: Mi Jung Yun, Kie Eyoun Jeong, In Soo Han
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Publication number: 20080063883Abstract: The present invention relates to methods of forming an aqueous coating on a plastic sheet surface for vehicle interior equipment, comprising the steps of: coating the plastic sheet with a primary composition, the primary composition comprising chlorinated aqueous olefin resin; baking the resulting plastic sheet; coating the baked sheet with a secondary composition, the secondary composition comprising aliphatic urethane; and baking the resulting plastic sheet.Type: ApplicationFiled: December 29, 2006Publication date: March 13, 2008Applicant: Hyundai Motor CompanyInventors: In Soo Han, Kie Youn Jeong, Mi Jung Yun