Polyimide/fluororesin laminates, producing method thereof, and insulating tape for wire-winding using the same
AssigneeKaneka Corporation
InventorsMasasru Nishinaka, Kazuhiro Ono, Kiyokazu Akahori
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Abstract
A polyimide/fluororesin laminate comprises a polyimide film and a fluororesin layer. The tear propagation resistance strength of the polyimide film after being exposed to 150° C. 100% RH environment for 12 hours is not less than 80% of the tear propagation resistance strength of the polyimide film before exposure. Particularly, the polyimide film contains at least one of Al, Si, Ti, Mn, Fe, Co, Cu, Zn, Sn, Sb, Pb, and Bi. The laminate is useful for an insulating tape for wire-winding.
Claims10
A polyimide/fluororesin laminate which is obtained by laminating a fluororesin layer on one or both surfaces of a polyimide film, wherein said polyimide film has a retention of a tear propagation resistance strength, after being exposed to 150° C. 100% RH environment for 12 hours. of not less than 80% of said tear propagation resistance strength of said polyimide film before exposure.
Dependencies are inferred from the claim text.