公开(公告)号：US20180148339A1

公开(公告)日：2018-05-31

申请号：US15372109

申请日：2016-12-07

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： Jia-Hao Wu ,  Yu-Chen Lai

IPC: C01B32/205 ,  C08J5/18 ,  C08G73/10

CPC classification number: C01B32/205 ,  C08G73/1007 ,  C08G73/1067 ,  C08J5/18 ,  C08J2379/08

Abstract: A process of fabricating a graphite film includes providing a roll of a polyimide film, applying a first thermal treatment so that the roll of the polyimide film is carbonized to form a roll of a carbon film, and applying a second thermal treatment so that the roll of the carbon film is converted to a roll of a graphite film. The rolled polyimide film has a thickness between 10 μm and 150 μm, and includes polyimide derived from reaction of diamine monomers with dianhydride monomers, the dianhydride monomers including pyromellitic dianhydride (PMDA), the diamine monomers including 4,4′-oxydianiline (4,4′-ODA) and phenylenediamine (PDA) with a ODA:PDA diamine molar ratio being 50:50 to 80:20.

公开(公告)号：US20180127561A1

公开(公告)日：2018-05-10

申请号：US15372026

申请日：2016-12-07

Applicant: TAIMIDE TECHNOLOGY INCORPORATION

Inventor： Jia-Hao Wu ,  Yu-Chen Lai

IPC: C08J9/28 ,  C08J9/00

CPC classification number: C01B32/205 ,  C08J9/0066 ,  C08J9/26 ,  C08J2201/044 ,  C08J2379/08

Abstract: A polyimide film suitable for use in the fabrication of a graphite layer includes a polyimide derived from reaction of diamine monomers with dianhydride monomers, and a foaming agent incorporated in the polyimide. Moreover, a process of fabricating a graphite film includes providing a polyamic acid solution formed by reaction of diamine monomers with dianhydride monomers, incorporating a foaming agent into the polyamic acid solution, forming a polyimide film from the polyamic acid solution, applying a first thermal treatment so that the polyimide film is carbonized to form a carbon film, and applying a second thermal treatment so that the carbon film is converted to a graphite film.