JPWO2022097659A5 - - Google Patents

Download PDF

Info

Publication number
JPWO2022097659A5
JPWO2022097659A5 JP2022520744A JP2022520744A JPWO2022097659A5 JP WO2022097659 A5 JPWO2022097659 A5 JP WO2022097659A5 JP 2022520744 A JP2022520744 A JP 2022520744A JP 2022520744 A JP2022520744 A JP 2022520744A JP WO2022097659 A5 JPWO2022097659 A5 JP WO2022097659A5
Authority
JP
Japan
Prior art keywords
shielding film
electromagnetic wave
adhesive layer
wave shielding
layer
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2022520744A
Other languages
Japanese (ja)
Other versions
JPWO2022097659A1 (en
JP7180033B2 (en
Filing date
Publication date
Application filed filed Critical
Priority claimed from PCT/JP2021/040493 external-priority patent/WO2022097659A1/en
Publication of JPWO2022097659A1 publication Critical patent/JPWO2022097659A1/ja
Publication of JPWO2022097659A5 publication Critical patent/JPWO2022097659A5/ja
Application granted granted Critical
Publication of JP7180033B2 publication Critical patent/JP7180033B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Claims (10)

シールド層と、接着剤層とが順に積層された電磁波シールドフィルムであって、
前記接着剤層は、接着性樹脂組成物と顔料とを含み、
前記電磁波シールドフィルムを前記接着剤層側から見た、前記接着剤層の表面のL表色系におけるa値は0.01~2.50であり、
前記接着剤層は、さらに金属粒子を含む導電性接着剤層であることを特徴とする電磁波シールドフィルム。
An electromagnetic wave shielding film in which a shield layer and an adhesive layer are laminated in order,
The adhesive layer contains an adhesive resin composition and a pigment,
When the electromagnetic wave shielding film is viewed from the adhesive layer side, the a * value in the L * a * b * color system of the surface of the adhesive layer is 0.01 to 2.50 ,
An electromagnetic wave shielding film , wherein the adhesive layer is a conductive adhesive layer further containing metal particles .
前記電磁波シールドフィルムを前記接着剤層側から見た、前記接着剤層の表面のL表色系におけるL値は40以下である請求項1に記載の電磁波シールドフィルム。 2. The electromagnetic shielding film according to claim 1, wherein the surface of the adhesive layer has an L * value of 40 or less in the L * a * b * color system when the electromagnetic shielding film is viewed from the adhesive layer side. 前記電磁波シールドフィルムを前記接着剤層側から見た、前記接着剤層の表面のL表色系におけるb値は0.01~5.00である請求項1又は2に記載の電磁波シールドフィルム。 3. The method according to claim 1 or 2, wherein, when the electromagnetic wave shielding film is viewed from the side of the adhesive layer, the surface of the adhesive layer has a b * value of 0.01 to 5.00 in L * a * b * color system. The electromagnetic wave shielding film described. 前記シールド層は、貫通孔を有する請求項1~3のいずれかに記載の電磁波シールドフィルム。 The electromagnetic wave shielding film according to any one of claims 1 to 3, wherein the shield layer has through holes. 前記顔料の重量と、前記金属粒子の重量との比は、[顔料の重量]/[金属粒子の重量]=0.05~1.0である請求項1~4のいずれかに記載の電磁波シールドフィルム。 The electromagnetic wave according to any one of claims 1 to 4 , wherein the ratio of the weight of the pigment to the weight of the metal particles is [weight of pigment]/[weight of metal particles] = 0.05 to 1.0. shield film. 前記接着剤層に含まれる前記金属粒子の重量割合は、2~60wt%である請求項1~5のいずれかに記載の電磁波シールドフィルム。 The electromagnetic wave shielding film according to any one of claims 1 to 5, wherein the weight ratio of said metal particles contained in said adhesive layer is 2 to 60 wt%. 前記接着剤層は、異方導電性を有する請求項1~6のいずれかに記載の電磁波シールドフィルム。 The electromagnetic wave shielding film according to any one of claims 1 to 6 , wherein the adhesive layer has anisotropic conductivity. 前記顔料は、導電性を有する請求項1~のいずれかに記載の電磁波シールドフィルム。 The electromagnetic wave shielding film according to any one of claims 1 to 7 , wherein the pigment has electrical conductivity. 前記顔料は、カーボンブラックからなる請求項に記載の電磁波シールドフィルム。 9. The electromagnetic wave shielding film according to claim 8 , wherein said pigment comprises carbon black. 前記シールド層は、銅層、銀層及びアルミニウム層からなる群から選択される少なくとも1種からなる請求項1~のいずれかに記載の電磁波シールドフィルム。 10. The electromagnetic wave shielding film according to any one of claims 1 to 9 , wherein said shield layer comprises at least one selected from the group consisting of a copper layer, a silver layer and an aluminum layer.
JP2022520744A 2020-11-05 2021-11-04 electromagnetic wave shielding film Active JP7180033B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020185123 2020-11-05
JP2020185123 2020-11-05
PCT/JP2021/040493 WO2022097659A1 (en) 2020-11-05 2021-11-04 Electromagnetic wave shielding film

Publications (3)

Publication Number Publication Date
JPWO2022097659A1 JPWO2022097659A1 (en) 2022-05-12
JPWO2022097659A5 true JPWO2022097659A5 (en) 2022-10-17
JP7180033B2 JP7180033B2 (en) 2022-11-29

Family

ID=81457036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022520744A Active JP7180033B2 (en) 2020-11-05 2021-11-04 electromagnetic wave shielding film

Country Status (4)

Country Link
JP (1) JP7180033B2 (en)
KR (1) KR20230098792A (en)
CN (1) CN116419847A (en)
WO (1) WO2022097659A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100827042B1 (en) * 2004-01-06 2008-05-02 닛폰 덴카이 가부시키가이샤 Copper foil for electromagnetic wave shield filter and electromagnetic wave shield filter
JP5167181B2 (en) * 2009-03-25 2013-03-21 大日本印刷株式会社 Electromagnetic wave shielding filter
JP5743500B2 (en) 2010-11-11 2015-07-01 藤森工業株式会社 Electromagnetic wave shielding material for FPC
JP6144868B2 (en) * 2010-11-18 2017-06-07 日東電工株式会社 Flip chip type semiconductor back film, dicing tape integrated semiconductor back film, and flip chip semiconductor back film manufacturing method
JP6381117B2 (en) * 2014-09-04 2018-08-29 信越ポリマー株式会社 Electromagnetic wave shielding film and method for producing flexible printed wiring board with electromagnetic wave shielding film
CN111800997B (en) * 2016-09-06 2023-08-29 拓自达电线株式会社 Electromagnetic wave shielding film
WO2020116409A1 (en) * 2018-12-03 2020-06-11 タツタ電線株式会社 Ground member and shielded printed wiring board

Similar Documents

Publication Publication Date Title
CN103436099B (en) A kind of composite conducting ink
US4888135A (en) Electrically conductive powder and electrically conductive composition using the same
US9521746B2 (en) Conductive film and preparation method thereof
WO2019052247A1 (en) Electromagnetic shielding film and preparation method therefor
CN104853576A (en) Electromagnetic shielding membrane with excellent shielding performance and production technology thereof
JP2021010032A (en) Electromagnetic wave shielding film
CN106003916A (en) Electromagnetic shielding film
CN106937522A (en) A kind of novel electromagnetic shielding film
CN105802346B (en) A kind of composite conducting ink film and preparation method thereof
CN108605425A (en) Electromagnetic shielding film
CN203492324U (en) Flexible cover film structure with electromagnetic shielding function
CN106003959A (en) Electromagnetic shielding film and preparation method thereof
CN106752632A (en) A kind of closed guard gate's electromagnetic-shielding conductive coating and preparation method thereof
CN104319042A (en) Surface mount type overcurrent protection element and preparation method thereof
CN107072130A (en) A kind of electromagnetic shielding film
CN107333462B (en) Conductive layer, electromagnetic shielding film and processing method of electromagnetic shielding film
CN2938703Y (en) Flexible printed circuit board
JPWO2022097659A5 (en)
CN206775922U (en) A kind of sheet material of electromagnetism interference antistatic
CN112210306B (en) Ultrathin composite adhesive film with heat dissipation, conduction and shielding functions and preparation method thereof
CN206350297U (en) A kind of electromagnetic shielding film easy to use
CN213680498U (en) Ultrathin composite adhesive film with heat dissipation, electric conduction and shielding functions
CN208562207U (en) A kind of ultra-thin electromagnetic shielding tape
CN103740246A (en) Organic conductive coating and preparation method thereof
CN209964374U (en) Cooling temperature-equalizing copper foil