公开(公告)号：US20250168974A1

公开(公告)日：2025-05-22

申请号：US19028921

申请日：2025-01-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kenzo TAKAHASHI ,  Nobuyuki KOMATSU ,  Tatsuya HIGUCHI ,  Takeshi HAZAMA ,  Mayuko TATEMICHI ,  Hirokazu KOMORI ,  Hideaki TENKAJI ,  Masahiko KAWAMURA

IPC: H05K1/03 ,  C08F214/26

Abstract: Provided is a fluororesin long film that has high uniformity and does not deform when bonded to metal foil. A fluororesin long film including a fluororesin in which the number of unstable functional groups is less than 350 per 1×106 carbon atoms, where a difference between each average film thickness in a travel direction at every 5 mm in a width direction and an average film thickness of entire surface is within 2 μm.

公开(公告)号：US20250145781A1

公开(公告)日：2025-05-08

申请号：US19018051

申请日：2025-01-13

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Masahiko KAWAMURA ,  Tatsuya HIGUCHI ,  Kenzo TAKAHASHI ,  Hirokazu KOMORI ,  Hideaki TENKAJI ,  Junpei TERADA ,  Nobuyuki KOMATSU

IPC: C08J5/18 ,  B32B15/082

Abstract: Provided is a fluororesin film with high uniformity in adhesion strength of the film. A fluororesin film that is a film comprising a fluororesin-containing composition, wherein at least one surface of the fluororesin film has an average value of contact angles for water measured at 5 points with intervals of 100 mm in a travel direction of 105° or less and an average value of contact angles for n-hexadecane measured at 5 points with intervals of 100 mm in the travel direction of 45° or less at locations of center and 100 mm from respective left and right ends.