Patents by Inventor Jee Kwon Park

Jee Kwon Park 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: 11661505
    Abstract: A thermoplastic resin composition of the present invention is characterized by including: about 100 parts by weight of a polyolefin resin; about 10-80 parts by weight of a flame retardant other than sodium phosphate; about 1-25 parts by weight of zinc oxide having an average particle size of about 0.2-3 ?m and a specific surface area BET of about 1-10 m2/g; and about 1-50 parts by weight of sodium phosphate. The thermoplastic resin composition has excellent antibacterial properties, flame retardant properties, chemical-resistant antibacterial properties, and the like.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 30, 2023
    Assignee: Lotte Chemical Corporation
    Inventors: Jee Kwon Park, Cheon Seok Yang, Hyeon Mun Jeong, Ju Sung Kim, Jin Seong Lee
  • Publication number: 20220411616
    Abstract: A thermoplastic resin composition of the present invention is characterized by comprising: about 100 parts by weight of a polyolefin resin including one or more of a polypropylene resin and an ethylene-propylene block copolymer; about 10 parts by weight to about 60 parts by weight of a phosphorus nitrogen-based flame retardant; about 0.05 parts by weight to about 10 parts by weight of a maleic anhydride-modified olefin-based polymer; and about 5 parts by weight to about 40 parts by weight of talc having a calcium content of about 0.1% by weight or less. The thermoplastic resin composition has excellent flame retardancy, impact resistance, rigidity, molding processability, etc.
    Type: Application
    Filed: November 18, 2020
    Publication date: December 29, 2022
    Inventors: Seon Ae LEE, Yoen Kyoung KIM, Jee Kwon PARK, Hyeon Mun JEONG
  • Publication number: 20220275194
    Abstract: A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of an ethylene-propylene block copolymer; approximately 0.3-5 parts by weight of metal phosphinate compound; approximately 0.5-5 parts by weight of a phosphorus-nitrogen-based retardant; and approximately 0.01-0.2 parts by weight of a bromine-based retardant. The thermoplastic resin composition has excellent flame retardancy, impact resistance, and the like.
    Type: Application
    Filed: September 24, 2020
    Publication date: September 1, 2022
    Inventors: Jee Kwon PARK, Hyeon Mun JEONG, Yoen Kyoung KIM, Seon Ae LEE
  • Patent number: 11312832
    Abstract: A thermoplastic resin composition and a molded article including the same. The thermoplastic resin composition includes: about 100 parts by weight of a thermoplastic resin; about 1 to about 30 parts by weight of an additive for laser direct structuring (LDS additive); about 0.01 to about 5 parts by weight of a hindered phenol-based compound; about 0.01 to about 10 parts by weight of a sodium phosphate salt; about 0.01 to about 5 parts by weight of a phosphite compound; about 0.01 to about 5 parts by weight of a sulfonate compound; and about 0.01 to about 10 parts by weight of a metal oxide, wherein a weight ratio of the hindered phenol-based compound, the sodium phosphate salt, the phosphite compound and the sulfonate compound to the metal oxide may range from about 2:1 to about 10:1.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: April 26, 2022
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jee Kwon Park, Ik Mo Kim, Nam Hyun Kim, Jung Ki Kim, Sang Hyun Hong
  • Patent number: 11208554
    Abstract: A thermally-conductive resin composition according to the present invention comprises: approximately 10-50 wt % polycarbonate resin; approximately 1-10 wt % glycol-modified polyester resin; approximately 1-15 wt % glass transition temperature depressing agent; approximately 5-20 wt % additive for laser direct structuring; approximately 10-35 wt % boron nitride having average particle size (D50) of approximately 10 ?m or greater; and approximately 10-30 wt % glass fiber having a non-circular cross-sectional surface.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 28, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jee Kwon Park, Yeong Deuk Seo, Jung Ki Kim, Yoo Jin Jung, Sang Hyun Hong
  • Publication number: 20210340366
    Abstract: A thermoplastic resin composition of the present invention is characterized by including: about 100 parts by weight of a polyolefin resin; about 10-80 parts by weight of a flame retardant other than sodium phosphate; about 1-25 parts by weight of zinc oxide having an average particle size of about 0.2-3 ?m and a specific surface area BET of about 1-10 m2/g; and about 1-50 parts by weight of sodium phosphate. The thermoplastic resin composition has excellent antibacterial properties, flame retardant properties, chemical-resistant antibacterial properties, and the like.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 4, 2021
    Inventors: Jee Kwon PARK, Cheon Seok YANG, Hyeon Mun JEONG, Ju Sung KIM, Jin Seong LEE
  • Patent number: 11002938
    Abstract: Disclosed herein is a lens barrel member. The lens barrel member includes: a lens barrel surrounding an outer periphery of a lens; and a housing receiving the lens barrel, the lens barrel being secured to the housing, wherein the lens barrel is formed of a lens barrel composition including: about 50 wt % to about 75 wt % of a polycarbonate resin; about 20 wt % to about 45 wt % of a glass fiber; about 0.5 wt % to about 3 wt % of a polyolefin wax; and about 0.5 wt % to about 3 wt % of a fluorinated olefin resin, and a weight ratio of the polyolefin wax to the fluorinated olefin resin ranges from about 1:0.3 to about 1:3. The lens barrel member can have a low coefficient of friction and/or good properties in terms of rigidity and/or dimensional stability.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: May 11, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jee Kwon Park, Ik Mo Kim, Jung Ki Kim, Sang Hyun Hong
  • Patent number: 10899900
    Abstract: The present invention relates to a thermoplastic resin composition for laser direct structuring, containing: a polycarbonate resin; an inorganic compound comprising titanium dioxide and zinc sulfide; a fibrous inorganic filler; and an additive for laser direct structuring. Therefore, the present invention can provide: a thermoplastic resin composition for laser direct structuring, capable of implementing excellent whiteness while maintaining excellent impact resistance and rigidity; and a molded article comprising the same.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 26, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Yoo Jin Jung, Ik Mo Kim, Jung Ki Kim, Jee Kwon Park, Sang Hyun Hong
  • Publication number: 20200148849
    Abstract: The present invention relates to a thermoplastic resin composition for laser direct structuring, containing: a polycarbonate resin; an inorganic compound comprising titanium dioxide and zinc sulfide; a fibrous inorganic filler; and an additive for laser direct structuring. Therefore, the present invention can provide: a thermoplastic resin composition for laser direct structuring, capable of implementing excellent whiteness while maintaining excellent impact resistance and rigidity; and a molded article comprising the same.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 14, 2020
    Inventors: Yoo Jin JUNG, Ik Mo KIM, Jung Ki KIM, Jee Kwon PARK, Sang Hyun HONG
  • Publication number: 20190338117
    Abstract: A thermally-conductive resin composition according to the present invention comprises: approximately 10-50 wt % polycarbonate resin; approximately 1-10 wt % glycol-modified polyester resin; approximately 1-15 wt % glass transition temperature depressing agent; approximately 5-20 wt % additive for laser direct structuring; approximately 10-35 wt % boron nitride having average particle size (D50) of approximately 10 ?m or greater; and approximately 10-30 wt % glass fiber having a non-circular cross-sectional surface.
    Type: Application
    Filed: December 27, 2017
    Publication date: November 7, 2019
    Applicant: LOTTE ADVANCED MATERIALS CO., LTD.
    Inventors: Jee Kwon PARK, Yeong Deuk SEO, Jung Ki KIM, Yoo Jin JUNG, Sang Hyun HONG
  • Publication number: 20190196133
    Abstract: Disclosed herein is a lens barrel member. The lens barrel member includes: a lens barrel surrounding an outer periphery of a lens; and a housing receiving the lens barrel, the lens barrel being secured to the housing, wherein the lens barrel is formed of a lens barrel composition including: about 50 wt % to about 75 wt % of a polycarbonate resin; about 20 wt % to about 45 wt % of a glass fiber; about 0.5 wt % to about 3 wt % of a polyolefin wax; and about 0.5 wt % to about 3 wt % of a fluorinated olefin resin, and a weight ratio of the polyolefin wax to the fluorinated olefin resin ranges from about 1:0.3 to about 1:3. The lens barrel member can have a low coefficient of friction and/or good properties in terms of rigidity and/or dimensional stability.
    Type: Application
    Filed: December 26, 2018
    Publication date: June 27, 2019
    Inventors: Jee Kwon PARK, Ik Mo KIM, Jung Ki KIM, Sang Hyun HONG
  • Publication number: 20190177499
    Abstract: A thermoplastic resin composition and a molded article including the same. The thermoplastic resin composition includes: about 100 parts by weight of a thermoplastic resin; about 1 to about 30 parts by weight of an additive for laser direct structuring (LDS additive); about 0.01 to about 5 parts by weight of a hindered phenol-based compound; about 0.01 to about 10 parts by weight of a sodium phosphate salt; about 0.01 to about 5 parts by weight of a phosphite compound; about 0.01 to about 5 parts by weight of a sulfonate compound; and about 0.01 to about 10 parts by weight of a metal oxide, wherein a weight ratio of the hindered phenol-based compound, the sodium phosphate salt, the phosphite compound and the sulfonate compound to the metal oxide may range from about 2:about 1 to about 10:about 1.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 13, 2019
    Inventors: Jee Kwon PARK, Ik Mo KIM, Nam Hyun KIM, Jung Ki KIM, Sang Hyun HONG
  • Publication number: 20180187007
    Abstract: Disclosed herein is a thermoplastic resin composition for laser direct structuring. The thermoplastic resin composition includes: (A) about 60 wt % to about 75 wt % of a polycarbonate resin; (B) about 5 wt % to about 30 wt % of a continuous phase and dispersed phase-containing aromatic vinyl-diene-vinyl cyanide copolymer; (C) about 1 wt % to about 15 wt % of a core-shell type rubber-modified aromatic vinyl graft copolymer; and (D) about 1 wt % to about 10 wt % of an additive for laser direct structuring (LDS additive), wherein the thermoplastic resin composition has an RW of higher than about 1 to about 6, as defined by Equation 1: RW=WB/WC wherein WB denotes a weight of the continuous phase and dispersed phase-containing aromatic vinyl-diene-vinyl cyanide copolymer (B), and WC denotes a weight of the core-shell type rubber-modified aromatic vinyl graft copolymer (C).
    Type: Application
    Filed: December 28, 2017
    Publication date: July 5, 2018
    Inventors: Jung Ki Kim, Nam Hyun Kim, Ik Mo Kim, Jee Kwon Park, Yoo Jin Jung, Sang Hyun Hong
  • Publication number: 20180171138
    Abstract: Disclosed herein is a thermoplastic resin composition. The thermoplastic resin composition includes: a polycarbonate resin; a glycol-modified polyester resin having 1,4-cyclohexane dimethanol (CHDM) content of about 20 mol % to about 100 mol % in a diol component; inorganic fillers; and an additive for laser direct structuring (LDS additive). The thermoplastic resin composition can have good properties in terms of plating adhesion, appearance, surface hardness, and the like.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Inventors: Yoo Jin JUNG, Jung Ki KIM, Jee Kwon PARK, Sang Hyun HONG
  • Publication number: 20170029621
    Abstract: A polyamide resin composition and a molded article manufactured using the same. The polyamide resin composition includes: a base resin comprising an aliphatic polyamide resin having a terminal amine group concentration of about 0.1 ?eq/g to about 45 ?eq/g and including a repeat unit represented by the following Formula 1 wherein a is an integer from 4 to 10, and b is an integer from 6 to 12 and an aromatic polyamide resin including a repeat unit represented by the following Formula 2 wherein c is an integer from 6 to 12; and inorganic fillers. The polyamide resin composition can exhibit excellent properties in terms of impact resistance, stiffness, processability, appearance, and balance therebetween.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventors: Nam Hyun KIM, Chan Gyun SHIN, Sang Hyun HONG, Jee Kwon PARK
  • Publication number: 20140361223
    Abstract: A composite of the present invention comprises: about 10 wt % to about 84 wt % of (A) a thermoplastic resin; about 5 wt % to about 35 wt % of (B) a first filler; about 1 wt % to about 20 wt % of (C) a second filler; and about 10 wt % to about 60 wt % of (D) a third filler, wherein the third filler (D) is a conductive filler, and the melting points of the thermoplastic resin (A), the first filler (B) and the second filler (C) satisfy the following relation 1: Tma?30° C.>Tmb,Tma+500° C.<Tmc??[Relation 1] (wherein, Tma is the melting point (° C.) of the (A) thermoplastic resin, Tmb is the melting point (° C.) of the (B) first filler, and Tmc is the melting point (° C.) of the (C) second filler).
    Type: Application
    Filed: December 4, 2012
    Publication date: December 11, 2014
    Inventors: Jee Kwon Park, Yoon Sook Lim, Jae Hyun Han, Kang Yeol Park
  • Publication number: 20140238736
    Abstract: A thermoplastic resin composition that can have excellent EMI shielding and injection-molding processability includes (A) a thermoplastic resin, (B) carbon fibers, and (C) filler comprising nano metal particles surface coated with graphite crystalline nano carbon particles, composite fillers which are carbon nanotubes coated with nano metal particles, composite fillers which are carbon nanotubes supporting nano metal particles, and combinations thereof.
    Type: Application
    Filed: February 17, 2014
    Publication date: August 28, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Kyoung Tae Youm, Jee Kwon Park, Young Sil Lee
  • Patent number: 8389628
    Abstract: The present invention provides a thermoplastic resin composition that can have excellent impact resistance, chemical resistance, fluidity and high gloss, which comprises about 1 to about 80 parts by weight of a styrene-acrylonitrile resin (A) including one or more functional groups capable of reacting with polyester; about 1 to about 98 parts by weight of an acrylonitrile-butadiene-styrene resin (B) including about 5 to about 40% by weight of a graft polymerized acrylonitrile-butadiene-styrene resin (B1) and about 60 to about 95% by weight of a styrene-acrylonitrile resin (B2) and including about 20% by weight or less of acrylonitrile; and about 1 to about 98 parts by weight of a polyester resin (C), wherein the resin composition comprises acrylonitrile in a total amount of about 1 to about 13% by weight.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: March 5, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Jee Kwon Park, Jin Hwan Choi, Kang Yeol Park, Jun Myung Kim, Jae Won Lee
  • Patent number: 8080619
    Abstract: A styrenic thermoplastic resin composition of the present invention comprises about 100 parts by weight of base resin comprising (A) about 10 to about 99 parts by weight of styrenic resin containing an epoxy group and (B) about 1 to about 90 parts by weight of polyester resin; and (C) about 0.1 to about 97 parts by weight of amorphous modified polyester resin, based on the total weight of the base resin. A molded article produced from the styrenic thermoplastic resin composition of the present invention can have excellent impact resistance and paintability.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: December 20, 2011
    Assignee: Cheil Industries Inc.
    Inventors: Jae Won Lee, Jin Hwan Choi, Jun Myung Kim, Jee Kwon Park
  • Patent number: 8080611
    Abstract: The present invention provides a chemical and impact resistant thermoplastic resin composition that can have improved extrudability. In one embodiment, the thermoplastic resin composition comprises a base resin including (A) about 1 to about 98% by weight of an epoxy group-containing vinyl copolymer resin; (B) about 1 to about 98% by weight of a rubber modified styrene copolymer resin; and (C) about 1 to about 98% by weight of a polyester resin; and about 1 to about 6 parts by weight of an aromatic vinyl-vinyl cyanide copolymer resin having a weight average molecular weight of about 1,000,000 to about 5,000,000, per 100 parts by weight of the base resin comprising (A)+(B)+(C). In another embodiment, the thermoplastic resin composition comprises a base resin including (A) about 1 to about 98% by weight of an epoxy group-containing vinyl copolymer resin; (B) about 1 to about 98% by weight of a rubber modified styrene copolymer resin; and (C) about 1 to about 98% by weight of a polyester resin; and (E) about 0.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: December 20, 2011
    Assignee: Cheil Industries Inc.
    Inventors: Jee Kwon Park, Jun Myung Kim, Jin Hwan Choi, Jae Won Lee