US Patent No. 10,716,203


Patent No. 10,716,203
Issue Date July 14, 2020
Title Adhesive Film And Flexible Metal Laminate
Inventorship Tomoya Hosoda, Chiyoda-ku (JP)
Eiichi Nishi, Chiyoda-ku (JP)
Toru Sasaki, Chiyoda-ku (JP)
Yasuhiko Matsuoka, Chiyoda-ku (JP)
Wataru Kasai, Chiyoda-ku (JP)
Assignee AGC Inc., Chiyoda-ku (JP)

Claim of US Patent No. 10,716,203

1. An adhesive film comprising a fluorinated resin layer comprising a fluorinated copolymer (A) directly laminated on both sides of a polyimide film, whereinthe fluorinated copolymer (A) has a melting point of at least 280° C. and at most 320° C., is melt-moldable, and comprises structural units (a1) derived from tetrafluoroethylene, structural units (a2) derived from a cyclic hydrocarbon monomer having an acid anhydride residue and a polymerizable unsaturated bond and structural units (a3) derived from a fluorinated monomer, excluding tetrafluoroethylene, and
the fluorinated resin layer has a thickness of from 1 to 20 ?m.