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

IPC: B29C70/02 ,  B29C45/00 ,  B29C47/00 ,  C08K7/06

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。

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.