公开(公告)号：US20250026899A1

公开(公告)日：2025-01-23

申请号：US18752818

申请日：2024-06-25

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： WEN-HSUAN CHUNG

IPC: C08J5/18 ,  B29C41/00 ,  B29C41/38 ,  B29C41/42 ,  B29C59/04 ,  B29C71/02 ,  B29K79/00 ,  B29K105/00 ,  C08G73/10

Abstract: The present invention provides a method for manufacturing a polyimide film with a reduced gloss, which comprises providing a diamine and a diacid anhydride for polymerization in a solvent to form a polyimide precursor solution; adding 2-5 equivalents of a dehydrating agent and a catalyst into the polyimide precursor solution and then coating a carrier with the polyimide precursor solution to form a polyimide gel film; providing an embossing wheel to roll the polyimide gel film peeled from the carrier at a temperature of 140-200° C. and a pressure of 3-10 Kgf/cm2 to form a concave and convex shape on a surface of the polyimide gel film; and baking the polyimide gel film to form a polyimide film with a 60° gloss of less than 100 GUs.