Thick polyimide-metal laminates with high peel strength

Details Thick polyimide-metal laminates with high peel strength Thick polyimide-metal laminates with high peel strength

B - Operations, Transporting

32

B

18/771, 117/114.

B32B 27/16 (2006.01) B32B 31/30 (1985.01)

Patent

CA 1234518

Abstract of the Disclosure This invention relates to a laminate comprising an insoluble, intractable relatively thick layer of a polyimide bonded tightly onto a metallic substrate without the necess- ity for an intermediate adhesive bonding layer and a process for preparing such by directly extruding a polyamic acid polyimide-precursor onto said substrate and converting said polyamic acid to the polyimide in a single pass in at least two heating stages.

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