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TW200621921A - Electroconductive paint composition and electroconductive film for electromagnetic wave shielding prepared therefrom - Google Patents

Electroconductive paint composition and electroconductive film for electromagnetic wave shielding prepared therefrom

Info

Publication number
TW200621921A
TW200621921A TW094134367A TW94134367A TW200621921A TW 200621921 A TW200621921 A TW 200621921A TW 094134367 A TW094134367 A TW 094134367A TW 94134367 A TW94134367 A TW 94134367A TW 200621921 A TW200621921 A TW 200621921A
Authority
TW
Taiwan
Prior art keywords
electroconductive
silver
powder
paint composition
particle size
Prior art date
Application number
TW094134367A
Other languages
Chinese (zh)
Other versions
TWI296641B (en
Inventor
Sang-Jin Kim
Chang-Seok Bae
Young-Gak Joun
Hyun-Don Kim
Hae-Ryong Chung
Original Assignee
Cheil Ind Inc Korean Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cheil Ind Inc Korean Corp filed Critical Cheil Ind Inc Korean Corp
Publication of TW200621921A publication Critical patent/TW200621921A/en
Application granted granted Critical
Publication of TWI296641B publication Critical patent/TWI296641B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20—Diluents or solvents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Dispersion Chemistry (AREA)
  • Electromagnetism (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Conductive Materials (AREA)

Abstract

Disclosed herein is an electroconducdve paint composition for electromagnetic wave shielding, which can effectively solve the problems of electromagnetic interference (EMI) and radio frequency interference (RFI) caused by electromagnetic waves generated from the internal elements of various electronic devices. The composition contains a silver-coated copper powder having fine particle size, so that it can greatly improve the durability of an electroconductive film prepared therefrom. The electroconductive paint composition comprises an aqueous polyurethane dispersion, a metal powder, a solvent and a rheology control agent, in which the metal powder is either a silver-coated copper powder having an average particle size of 2-20 μm or a mixture of the silver-coated powder and a silver powder having an average particle size of 2-10 μm, and the aqueous polyurethane dispersion is a mixture of at least two kinds of aqueous polyurethane dispersions.
TW094134367A 2004-12-30 2005-09-30 Electroconductive paint composition and electroconductive film for electromagnetic wave shielding prepared therefrom TWI296641B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20040116623 2004-12-30
KR1020050070188A KR100624316B1 (en) 2004-12-30 2005-08-01 Electroconductive paint composition and electroconductive film prepared therefrom

Publications (2)

Publication Number Publication Date
TW200621921A true TW200621921A (en) 2006-07-01
TWI296641B TWI296641B (en) 2008-05-11

Family

ID=36817801

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094134367A TWI296641B (en) 2004-12-30 2005-09-30 Electroconductive paint composition and electroconductive film for electromagnetic wave shielding prepared therefrom

Country Status (3)

Country Link
KR (1) KR100624316B1 (en)
CN (1) CN100432171C (en)
TW (1) TWI296641B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080055238A (en) * 2006-12-15 2008-06-19 (주)파낙스이엠 Composition for emi shield paint
TW201121405A (en) * 2009-09-18 2011-06-16 Toyo Ink Mfg Co Electro-magnetic wave shielding film and wiring board
CN102424740A (en) * 2011-11-25 2012-04-25 珠海天威飞马打印耗材有限公司 Outer-layer protective water-based conductive coating for hard rubber charging roller
CN105399925B (en) * 2015-12-02 2018-12-14 南京航空航天大学 It can rapid curing polyurethane gamma ray shielding composite material and preparation method
CN105623406B (en) * 2016-03-18 2018-06-15 信和新材料股份有限公司 A kind of waterborne conductive type electromagnetic shielding building coating and its production method based on graphene
KR101904606B1 (en) * 2016-10-11 2018-10-04 주식회사 케이씨씨 Water soluable paint composition
KR101938341B1 (en) 2017-05-22 2019-04-10 한밭대학교 산학협력단 Lacquer Paint Composition for Shielding Electromagnetic Waves and the Fabrication Method Thereof
CN112795263A (en) * 2021-02-05 2021-05-14 昆山睿翔讯通通信技术有限公司 Metal shielding camera and manufacturing method thereof
CN112808551A (en) * 2021-02-05 2021-05-18 昆山睿翔讯通通信技术有限公司 Metal shielding camera and manufacturing method thereof
CN114213953A (en) * 2021-12-30 2022-03-22 广州千顺工业材料有限公司 Black water-based high-performance electromagnetic wave shielding coating and preparation method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950423A (en) * 1986-01-22 1990-08-21 The B. F. Goodrich Company Coating of EMI shielding and method therefor
US4715989A (en) * 1986-01-22 1987-12-29 The B.F. Goodrich Company Coating for EMI shielding
US5855820A (en) * 1997-11-13 1999-01-05 E. I. Du Pont De Nemours And Company Water based thick film conductive compositions
KR100455338B1 (en) * 2001-11-21 2004-11-06 제일모직주식회사 Conductive paint composition for shielding a substrate against EMI/RFI
CN1441014A (en) * 2002-02-27 2003-09-10 海尔科化工程塑料国家工程研究中心股份有限公司 Environment protecting nano conducting paint composite and its prepn
KR100505117B1 (en) * 2002-12-20 2005-07-29 제일모직주식회사 A Conductive Paints Composition
KR100638393B1 (en) * 2004-11-02 2006-10-26 주식회사 이엠씨플러스 Paint for electromagnetic interference shielding and manufacturing method for the same

Also Published As

Publication number Publication date
CN1796477A (en) 2006-07-05
KR100624316B1 (en) 2006-09-13
CN100432171C (en) 2008-11-12
KR20060079068A (en) 2006-07-05
TWI296641B (en) 2008-05-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees