Patents by Inventor Jeong Min JANG
Jeong Min JANG 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: 11911733Abstract: A hair dye dispenser according to an embodiment of the present invention includes a housing having an opening hole formed on one side of which a hair dye is provided, a plurality of cartridges disposed inside the housing and accommodating at least one dyeing material, a main body in which the plurality of cartridges are rotatably disposed, a main motor for rotating the main body so that a first cartridge of the plurality of cartridges is located adjacent to the opening hole, a discharge module for discharging the dyeing material contained in the first cartridge, and an accommodating body in which a basket accommodating the dyeing material discharged by the discharge module is placed, wherein the discharge module may include an elevating body that pressurizes the first cartridge when moving up and is separated from the first cartridge when moving down.Type: GrantFiled: October 24, 2019Date of Patent: February 27, 2024Assignee: LG FAROUK CO.Inventors: Kyung Sik Jang, Jeong Ho Lee, Jung Yong Lee, Seong Lok Hwang, Sang Min Lee, Joong Hun Kim
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Patent number: 11525053Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, a styrene-based monomer unit, and a vinyl cyan-based monomer unit; a first styrene-based copolymer including a C1 to C3 alkyl-substituted styrene-based monomer unit and a vinyl cyan-based monomer unit; and a second styrene-based copolymer including an unsubstituted styrene-based monomer unit and a vinyl cyan-based monomer unit. The thermoplastic resin composition is remarkably excellent in heat resistance, chemical resistance, and appearance characteristics while maintaining basic properties.Type: GrantFiled: October 29, 2019Date of Patent: December 13, 2022Assignee: LG CHEM, LTD.Inventors: Da Eun Sung, Yong Yeon Hwang, Chun Ho Park, Yong Hee An, Jeong Min Jang
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Patent number: 11499046Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer having an average particle diameter of 50.0 to 90.0 nm; a matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, specifically, a thermoplastic resin composition which has improved properties in terms of elongation, processability, weather resistance, colorability, hardness, chemical resistance, scratch resistance, a whitening phenomenon, surface gloss and appearance quality while having excellent basic properties.Type: GrantFiled: November 13, 2019Date of Patent: November 15, 2022Assignee: LG CHEM, LTD.Inventors: Chun Ho Park, Yong Yeon Hwang, Da Eun Sung, Yong Hee An, Jeong Min Jang
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Patent number: 11377547Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer; a first matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; a second matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, wherein the first matrix copolymer and the second matrix copolymer have different weight-average molecular weights, specifically, a thermoplastic resin composition which allows high gloss, high hardness, high weather resistance and reduced whitening to be realized.Type: GrantFiled: November 12, 2019Date of Patent: July 5, 2022Assignee: LG CHEM, LTD.Inventors: Chun Ho Park, Yong Yeon Hwang, Da Eun Sung, Yong Hee An, Jeong Min Jang
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Publication number: 20220177692Abstract: Provided is a thermoplastic resin composition which includes: a first graft copolymer including a first acrylic rubber polymer; a second graft copolymer including a second acrylic rubber polymer; and a first styrene-based copolymer including an alkyl-substituted styrene-based monomer unit and an acrylonitrile-based monomer unit, wherein the first acrylic rubber polymer has an average particle diameter larger than that of the second acrylic rubber polymer, the first graft copolymer is included in a larger amount than the second graft copolymer, and the sum of the first graft copolymer and the second graft copolymer is 22 parts by weight or less with respect to 100 parts by weight of the sum of the first graft copolymer, the second graft copolymer, and the first styrene-based copolymer.Type: ApplicationFiled: January 27, 2021Publication date: June 9, 2022Inventors: Da Eun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Wang Rae JOE, Ho Hoon KIM, Jeong Min JANG
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Patent number: 11286383Abstract: Provided is a thermoplastic resin composition which includes: a first graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, a C1 to C3 alkyl-substituted styrene-based monomer unit, and a vinyl cyan-based monomer unit; a second graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, an alkyl-unsubstituted styrene-based monomer unit, and a vinyl cyan-based monomer unit; a first styrene-based copolymer including a C1 to C3 alkyl-substituted styrene-based monomer unit and a vinyl cyan-based monomer unit; a second styrene-based copolymer including an alkyl-unsubstituted styrene-based monomer unit and a vinyl cyan-based monomer unit; and an olefin-based copolymer including a C1 to C3 alkyl (meth)acrylate-based monomer unit. The thermoplastic resin composition exhibits remarkably excellent chemical resistance and remarkably excellent appearance characteristics while maintaining basic properties.Type: GrantFiled: October 28, 2019Date of Patent: March 29, 2022Assignee: LG CHEM, LTD.Inventors: Da Eun Sung, Yong Yeon Hwang, Chun Ho Park, Yong Hee An, Jeong Min Jang
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Patent number: 11091625Abstract: Provided is a thermoplastic resin composition including: a first copolymer including an acrylic rubber-based graft copolymer and an emulsifier including an acid salt; a second copolymer including a unit derived from an alkyl acrylate-based monomer and a unit derived from an alkyl methacrylate-based monomer; and a third copolymer including a unit derived from an aromatic vinyl-based monomer and a unit derived from a vinyl cyan-based monomer.Type: GrantFiled: January 17, 2019Date of Patent: August 17, 2021Assignee: LG CHEM, LTD.Inventors: Chun Ho Park, Yong Yeon Hwang, Bong Keun Ahn, Min Jung Kim, Yong Hee An, Wang Rae Joe, Jang Won Park, Jeong Min Jang, Ji Yoon Jeon
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Publication number: 20210246297Abstract: Provided is a thermoplastic resin composition which includes: a first graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, a C1 to C3 alkyl-substituted styrene-based monomer unit, and a vinyl cyan-based monomer unit; a second graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, an alkyl-unsubstituted styrene-based monomer unit, and a vinyl cyan-based monomer unit; a first styrene-based copolymer including a C1 to C3 alkyl-substituted styrene-based monomer unit and a vinyl cyan-based monomer unit; a second styrene-based copolymer including an alkyl-unsubstituted styrene-based monomer unit and a vinyl cyan-based monomer unit; and an olefin-based copolymer including a C1 to C3 alkyl (meth)acrylate-based monomer unit. The thermoplastic resin composition exhibits remarkably excellent chemical resistance and remarkably excellent appearance characteristics while maintaining basic properties.Type: ApplicationFiled: October 28, 2019Publication date: August 12, 2021Inventors: Da Eun SUNG, Yong Yeon HWANG, Chun Ho PARK, Yong Hee AN, Jeong Min JANG
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Publication number: 20210238404Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer including a C4 to C10 alkyl (meth)acrylate-based monomer unit, a styrene-based monomer unit, and a vinyl cyan-based monomer unit; a first styrene-based copolymer including a C1 to C3 alkyl-substituted styrene-based monomer unit and a vinyl cyan-based monomer unit; and a second styrene-based copolymer including an unsubstituted styrene-based monomer unit and a vinyl cyan-based monomer unit. The thermoplastic resin composition is remarkably excellent in heat resistance, chemical resistance, and appearance characteristics while maintaining basic properties.Type: ApplicationFiled: October 29, 2019Publication date: August 5, 2021Inventors: Da Eun SUNG, Yong Yeon HWANG, Chun Ho PARK, Yong Hee AN, Jeong Min JANG
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Publication number: 20210214544Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer; a first matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; a second matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, wherein the first matrix copolymer and the second matrix copolymer have different weight-average molecular weights, specifically, a thermoplastic resin composition which allows high gloss, high hardness, high weather resistance and reduced whitening to be realized.Type: ApplicationFiled: November 12, 2019Publication date: July 15, 2021Inventors: Chun Ho PARK, Yong Yeon HWANG, Da Eun SUNG, Yong Hee AN, Jeong Min JANG
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Publication number: 20210108070Abstract: Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer having an average particle diameter of 50.0 to 90.0 nm; a matrix copolymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C1-C3 alkyl (meth)acrylate-based monomer unit, specifically, a thermoplastic resin composition which has improved properties in terms of elongation, processability, weather resistance, colorability, hardness, chemical resistance, scratch resistance, a whitening phenomenon, surface gloss and appearance quality while having excellent basic properties.Type: ApplicationFiled: November 13, 2019Publication date: April 15, 2021Inventors: Chun Ho PARK, Yong Yeon HWANG, Da Eun SUNG, Yong Hee AN, Jeong Min JANG
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Publication number: 20200115540Abstract: Provided is a thermoplastic resin composition including: a first copolymer including an acrylic rubber-based graft copolymer and an emulsifier including a salt of a compound represented by Chemical Formula 1; a second copolymer including a unit derived from an alkyl acrylate-based monomer and a unit derived from an alkyl methacrylate-based monomer; and a third copolymer including a unit derived from an aromatic vinyl-based monomer and a unit derived from a vinyl cyan-based monomer.Type: ApplicationFiled: January 17, 2019Publication date: April 16, 2020Applicant: LG CHEM, LTD.Inventors: Chun Ho PARK, Yong Yeon HWANG, Bong Keun AHN, Min Jung KIM, Yong Hee AN, Wang Rae JOE, Jang Won PARK, Jeong Min JANG, Ji Yoon JEON