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公开(公告)号：US20200332119A1
公开(公告)日：2020-10-22
申请号：US16957555
申请日：2019-11-08
Applicant: LG CHEM, LTD.
Inventor： Gi Dae Choi , Minsu Kim , Eon Seok Lee
Abstract: Described are a conductive concentrated resin composition including (a) 100 parts by weight of a base resin including 50% to 95% by weight of a polyamide resin, 2.5% to 20% by weight of a polar polymer, and 2.5% to 30% by weight of a non-polar polymer, (b) 10 parts to 40 parts by weight of a carbon nanofibril, (c) 0.5 parts to 5 parts by weight of a carbon nanoplate, and (d) 0.5 parts to 4 parts by weight of nanoclay; a conductive polyamide resin composition including the conductive concentrated resin composition; a method of preparing the conductive concentrated resin composition; and a molded article including the conductive polyamide resin composition.
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公开(公告)号：US11993695B2
公开(公告)日：2024-05-28
申请号：US17261250
申请日：2019-11-14
Applicant: LG CHEM, LTD.
Inventor： Gi Dae Choi , Youngjoo Kim , Eon Seok Lee , Changhun Yun , Minsu Kim
IPC: C08K3/04 , B29C48/00 , B29C48/40 , B29C48/92 , C08K3/08 , C08K7/06 , C08L101/00 , H05K9/00 , B29K301/12
CPC classification number: C08K3/046 , B29C48/0022 , B29C48/40 , B29C48/92 , C08K3/08 , C08K7/06 , C08L101/00 , H05K9/009 , B29C2948/92704 , B29C2948/92885 , B29K2301/12 , B29K2995/0011 , C08K2003/0843 , C08K2003/0856 , C08K2003/0862 , C08K2201/001 , C08K2201/003 , C08K2201/006 , C08K2201/01 , C08K2201/011
Abstract: Provided is a thermoplastic resin composition, including (a) 100 parts by weight of a thermoplastic resin including 80-100% by weight of a base resin and 0-20% by weight of a reinforcing resin; (b) 2-60 parts by weight of linear carbon fibers having an average diameter of 1-15 μm; (c) 1-5 parts by weight of carbon nanofibrils having a BET specific surface area of 200-400 m2/g; (d) 1-15 parts by weight of carbon nanoplates; and (e) 1-25 parts by weight of metal powder, a method of preparing the thermoplastic resin composition, and an injection-molded article manufactured using the thermoplastic resin composition. The thermoplastic resin composition has excellent mechanical properties, e.g., impact strength, and also excellent conductivity, heat resistance, and electromagnetic wave shielding capacity, particularly high shielding efficiency against high-frequency electromagnetic waves, and thus can be used as automobile, electric, and electronic parts, and as a substitute for aluminum alloys and magnesium alloys.
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公开(公告)号：US10676595B2
公开(公告)日：2020-06-09
申请号：US16274652
申请日：2019-02-13
Applicant: LG CHEM, LTD.
Inventor： Yeon Sik Choi , Su Min Lee , Chang Hun Yun , Gi Dae Choi
IPC: C08K7/06 , C08K5/09 , C08K7/24 , B29B9/16 , C08K5/05 , C08K5/10 , C08K5/20 , C08K5/22 , C08K3/04 , C08J7/06 , C08L77/02 , C08L77/06
Abstract: Disclosed are methods for combining a thermoplastic polymer with a carbon nanomaterial. More particularly, A method of preparing a thermoplastic polymer combined with a carbon nanomaterial includes combining the carbon nanomaterial with a pyrene derivative by stirring 1 to 40 wt % of a carbon nanomaterial, 1 to 40 wt % of a polycyclic aromatic hydrocarbon derivative, and 20 to 98 wt % of a solvent with a mechanical mixer. According to the present invention, the resulting materials exhibit excellent tensile strength, tensile modulus, electromagnetic shielding effects and anti-static effects, and the like.
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4.发明申请THERMOPLASTIC POLYMER COMBINED WITH CARBON NANOMATERIAL AND METHOD OF PREPARING THE SAME 审中-公开与碳纳米管组合的热塑性聚合物及其制备方法公开(公告)号：US20160046794A1
公开(公告)日：2016-02-18
申请号：US14419423
申请日：2014-08-28
Applicant: LG CHEM, LTD.
Inventor： Yeon Sik Choi , Su Min Lee , Chang Hun Yun , Gi Dae Choi
CPC classification number: C08K7/06 , B29B9/16 , B29B2009/163 , C08J7/06 , C08J2377/00 , C08K3/041 , C08K3/042 , C08K3/046 , C08K5/05 , C08K5/09 , C08K5/10 , C08K5/20 , C08K5/22 , C08L77/02 , C08L77/06
Abstract: Disclosed are a thermoplastic polymer combined with a carbon nanomaterial and a method of preparing the same. More particularly, a thermoplastic polymer combined with carbon nanomaterial, comprising 0.1 to 15 wt % of a carbon nanomaterial, 0.025 to 30 wt % of a polycyclic aromatic hydrocarbon derivative, and 55 to 99.875 wt % of a thermoplastic polymer, wherein the carbon nanomaterial and the polycyclic aromatic hydrocarbon derivative combine through π-π interaction, and the polycyclic aromatic hydrocarbon derivative covalently combines with the thermoplastic polymer, is disclosed. The thermoplastic polymer combined with the carbon nanomaterial and the method of preparing the same, according to the present invention, exhibit excellent tensile strength, tensile modulus, electromagnetic shielding effects and anti-static effects, and the like.
Abstract translation: 公开了与碳纳米材料组合的热塑性聚合物及其制备方法。 更具体地说，与碳纳米材料组合的热塑性聚合物，其包含0.1至15重量％的碳纳米材料，0.025至30重量％的多环芳烃衍生物和55至99.875重量％的热塑性聚合物，其中所述碳纳米材料和 多环芳烃衍生物通过＆amp; 公开了与热塑性聚合物共价结合的多环芳烃衍生物。 根据本发明，与碳纳米材料结合的热塑性聚合物及其制备方法表现出优异的拉伸强度，拉伸模量，电磁屏蔽效果和抗静电效果等。
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5.发明授权公开(公告)号：US12122892B2
公开(公告)日：2024-10-22
申请号：US17293432
申请日：2020-10-28
Applicant: LG CHEM, LTD.
Inventor： Gi Dae Choi , Young Joo Kim , Myong Jo Ham , Oh Min Kwon
CPC classification number: C08K13/04 , C08J3/203 , H05K9/009 , C08K3/04 , C08K3/041 , C08K2003/0856 , C08K7/06 , C08K2201/003 , C08K2201/006 , C08K2201/011 , C08K2201/013 , C08K2201/014
Abstract: The present disclosure relates to a thermoplastic resin composition including a thermoplastic resin, carbon fiber, carbon nanotube, plate-shaped graphite, and metal fiber, which has excellent mechanical properties and electromagnetic wave shielding performance.
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Patent Agency Ranking
公开(公告)号：US11912868B2
公开(公告)日：2024-02-27
申请号：US16957555
申请日：2019-11-08
Applicant: LG CHEM, LTD.
Inventor： Gi Dae Choi , Minsu Kim , Eon Seok Lee
CPC classification number: C08L77/02 , C08L23/06 , C08L23/12 , C08L23/16 , C08L25/10 , C08K3/046 , C08K2201/006
Abstract: The present invention relates to a conductive concentrated resin composition including (a) 100 parts by weight of a base resin including 50 to 95% by weight of a polyamide resin, 2.5 to 20% by weight of a polar polymer, and 2.5 to 30% by weight of a non-polar polymer, (b) 10 to parts by weight of a carbon nanofibril, (c) 0.5 to 5 parts by weight of a carbon nanoplate, and (d) 0.5 to 4 parts by weight of nanoclay; a conductive polyamide resin composition including the conductive concentrated resin composition; a method of preparing the conductive concentrated resin composition; and a molded article including the conductive polyamide resin composition.
When a polyamide alloy resin composition is prepared using the conductive concentrated resin composition of the present invention, compatibility between compositions and dispersion stability may be improved, thereby significantly increasing moisture stability while maintaining mechanical strength, conductivity, heat resistance, and appearance properties equal or superior to those of a conventional conductive polyamide alloy resin composition.-
公开(公告)号：US20190177509A1
公开(公告)日：2019-06-13
申请号：US16274652
申请日：2019-02-13
Applicant: LG CHEM, LTD.
Inventor： Yeon Sik Choi , Su Min Lee , Chang Hun Yun , Gi Dae Choi
IPC: C08K7/06 , C08K5/05 , C08K5/09 , C08K7/24 , B29B9/16 , C08K5/10 , C08J7/06 , C08K5/22 , C08K5/20
Abstract: Disclosed are methods for combining a thermoplastic polymer with a carbon nanomaterial. More particularly, A method of preparing a thermoplastic polymer combined with a carbon nanomaterial includes combining the carbon nanomaterial with a pyrene derivative by stirring 1 to 40 wt % of a carbon nanomaterial, 1 to 40 wt % of a polycyclic aromatic hydrocarbon derivative, and 20 to 98 wt % of a solvent with a mechanical mixer. According to the present invention, the resulting materials exhibit excellent tensile strength, tensile modulus, electromagnetic shielding effects and anti-static effects, and the like.
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公开(公告)号：US10266675B2
公开(公告)日：2019-04-23
申请号：US14419423
申请日：2014-08-28
Applicant: LG CHEM, LTD.
Inventor： Yeon Sik Choi , Su Min Lee , Chang Hun Yun , Gi Dae Choi
IPC: C08K3/04 , C08K5/01 , C08K7/06 , C08K9/04 , C08J3/215 , C08J7/06 , C08J3/22 , C08L101/00 , C08L77/00 , B82B1/00 , B82B3/00 , C08K5/09 , C08K7/24 , B29B9/16 , C08K5/05 , C08K5/10 , C08K5/20 , C08K5/22 , C08L77/02 , C08L77/06
Abstract: Disclosed are a thermoplastic polymer combined with a carbon nanomaterial and a method of preparing the same. More particularly, a thermoplastic polymer combined with carbon nanomaterial, comprising 0.1 to 15 wt % of a carbon nanomaterial, 0.025 to 30 wt % of a polycyclic aromatic hydrocarbon derivative, and 55 to 99.875 wt % of a thermoplastic polymer, wherein the carbon nanomaterial and the polycyclic aromatic hydrocarbon derivative combine through π-π interaction, and the polycyclic aromatic hydrocarbon derivative covalently combines with the thermoplastic polymer, is disclosed. The thermoplastic polymer combined with the carbon nanomaterial and the method of preparing the same, according to the present invention, exhibit excellent tensile strength, tensile modulus, electromagnetic shielding effects and anti-static effects, and the like.
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9.发明申请COMPOSITE MATERIAL WITH IMPROVED MECHANICAL PROPERTIES AND MOLDED ARTICLE CONTAINING SAME 审中-公开具有改进的机械性能的复合材料和包含其的成型制品公开(公告)号：US20160263840A1
公开(公告)日：2016-09-15
申请号：US14762347
申请日：2014-12-04
Applicant: LG CHEM. LTD.
Inventor： Yeon Sik Choi , Su Min Lee , Gi Dae Choi , Changhun Yun
CPC classification number: B29C70/025 , B29C45/0001 , B29C45/0005 , B29C48/022 , B29K2077/00 , B29K2105/0023 , B29K2105/12 , B29K2105/16 , B29K2307/04 , B29K2507/04 , B29K2995/0005 , B29K2995/0046 , B29K2995/0077 , B29L2031/3406 , B29L2031/3481 , C08J3/203 , C08J2323/10 , C08J2367/02 , C08J2369/00 , C08J2377/06 , C08K7/02 , C08K7/06 , C08K7/24 , C08K2201/001 , C08K2201/01
Abstract: Provided is a composite produced by processing a resin composition including a thermoplastic resin, bundle type carbon nanotubes and a reinforcing material. The carbon nanotubes have an ID/IG of 1.0 to 1.0 before the processing. The ratio of residual length of the carbon nanotubes present in the composite is from 40% to 99%. The composite has improved mechanical properties without deterioration of conductivity. With these improvements, the composite can be used to manufacture various molded articles.
Abstract translation: 提供了通过加工包括热塑性树脂，束状碳纳米管和增强材料的树脂组合物制备的复合材料。 碳纳米管在加工前的ID / IG为1.0〜1.0。 存在于复合材料中的碳纳米管的残留长度的比例为40％至99％。 该复合材料具有改善的机械性能而不劣化导电性。 通过这些改进，复合材料可用于制造各种模制品。
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10.发明申请公开(公告)号：US20220356343A1
公开(公告)日：2022-11-10
申请号：US17630867
申请日：2021-07-08
Applicant: LG CHEM, LTD.
Inventor： Gi Dae Choi , Jinseon Kim , Myong Jo Ham , Hyun Jin Lee
Abstract: A conductive resin composition including 100 parts by weight of a base resin (A), which includes a polyester, a polyarylene ether, and an aromatic elastomer; 3 to 12 parts by weight of two or more polyfunctional reaction agents (B); 0.1 to 3 parts by weight of carbon nanotubes (C); 0.1 to 5 parts by weight of carbon nanoplates (D); and 1 to 10 parts by weight of glass powder (E), a method of preparing the conductive resin composition, and a molded article including the conductive resin composition. The conductive resin composition has excellent moisture stability and heat resistance in addition to excellent appearance, rigidity, and conductivity; can minimize the influence of moisture and heat when exposed to external environments; and thus, can be used in exterior parts to replace metal parts used in automobiles.
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