Flexible base materials, their preparation and their use for...

Details Flexible base materials, their preparation and their use for... Flexible base materials, their preparation and their use for...

H - Electricity

05

K

117/196

H05K 1/03 (2006.01) B05D 3/02 (2006.01) B32B 15/08 (2006.01)

Patent

CA 1186573

lexible base materials their preparation and their use for printed circuits Abstract Flexible base materials. consisting of a metal foil and a film of a polyamide, polyamide-imide and/or polyimide, firmly adhering thereto without an inter- mediate layer, the film being obtained by heating a poly- amide, polyamide-amidoacid and/or polyamide-acid containing the structural units of the formulae I and II. The individual symbols are as defined in claim 1. The base materials according to the invention are useful for the production of flexible printed circuits.

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