US 11,812,543 B2
Electromagnetic wave shielding film
Akio Takahashi, Kyoto (JP); and Tsunehiko Terada, Kyoto (JP)
Assigned to TATSUTA ELECTRIC WIRE & CABLE CO., LTD., Osaka (JP)
Appl. No. 16/087,698
Filed by TATSUTA ELECTRIC WIRE & CABLE CO., LTD., Osaka (JP)
PCT Filed Feb. 21, 2017, PCT No. PCT/JP2017/006301
§ 371(c)(1), (2) Date Sep. 24, 2018,
PCT Pub. No. WO2017/169297, PCT Pub. Date Oct. 5, 2017.
Claims priority of application No. 2016-072293 (JP), filed on Mar. 31, 2016.
Prior Publication US 2019/0098742 A1, Mar. 28, 2019
Int. Cl. C09D 5/24 (2006.01); H05K 9/00 (2006.01); B32B 27/18 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); H05K 1/02 (2006.01); H05K 1/18 (2006.01)
CPC H05K 9/0083 (2013.01) [B32B 27/18 (2013.01); C09D 5/24 (2013.01); C09D 7/61 (2018.01); C09D 7/69 (2018.01); H05K 1/023 (2013.01); H05K 1/0215 (2013.01); H05K 9/00 (2013.01); H05K 1/181 (2013.01); H05K 2201/0715 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An electromagnetic wave shielding film comprising:
an insulating layer having electrical insulation properties;
a conductive layer having stretchability;
an adhesion layer formed on one surface of the conductive layer and having insulating properties;
a through-hole extending only from a surface of the insulating layer to a surface of the conductive layer, which is in direct contact with the insulating layer; and
a pad electrically connected to the conductive layer and formed directly on the insulating layer, wherein
the conductive layer includes a conductive composition comprising a resin having stretchability and a conductive filler filled with the resin; wherein the conductive filler is dendritic, and
the resin has a tensile permanent set of 2.5% or more and 90% or less.