Patent ID: 11942665
Assignee: ARISAWA MFG. CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H  Y | IPC H

Claim 6:
7. A method of manufacturing a separator member for a fuel cell, the method comprising:
a first resin layer making step of making a first resin layer including a resin;
a second resin layer making step of making a second resin layer in a semi-curing state, including a resin and having a thickness that is smaller than a thickness of the first resin layer;
a conductive fiber base material layering step of layering a conductive fiber base material on the second resin layer and pressure-bonding the conductive fiber base material to the second resin layer by heating;
a graphite layer making step of making a graphite layer that has a layering amount of 0.5 to 30/m2, and is substantially made of graphite having a volume resistivity of 3 mΩ·cm or less on a resin face of the second resin layer, on which the conductive fiber base material is layered;
a material included in the graphite layer includes 95% by weight or more of graphite; and
a first resin layer layering step of layering the first resin layer on the conductive fiber base material of the second resin layer, and heating and pressurizing the first resin layer and
providing a conductive fiber base material and a second resin layer including a resin that are layered between the first resin layer and the first graphite sheet in order in which the conductive fiber base material is closer to the first resin layer than the second resin layer, and wherein
a thickness of the second resin layer is smaller than a thickness of the first resin layer.