Polyimide film with metal salt coating resulting in improved adh

Details Polyimide film with metal salt coating resulting in improved adh Polyimide film with metal salt coating resulting in improved adh

1992-03-03

1993-07-13

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of metal

4284735, B32B 2706

Patent

active

052272443

ABSTRACT:
A polyimide film is described having improved adhesion prepared by coating the surface of a partially cured or partially dried polyamide acid film with an organic solvent solution of a metal salt and heating the coated film to both convert the polyamide acid to polyimide and dry the film. By proper selection of the metal salt either a one-side adherable or two-side adherable polyimide film can be obtained. The polyimide film can be used in electrical insulating and flexible printed circuit applications where superior adhesion is an important requirement.

REFERENCES:
patent: 3375131 (1968-03-01), Schmidt
patent: 3389111 (1968-06-01), McKeown et al.
patent: 4742099 (1988-05-01), Nagano et al.
patent: 4755424 (1988-07-01), Takeoka et al.
patent: 4797307 (1989-01-01), Kunimoto et al.
patent: 4861663 (1989-08-01), Sirinyan et al.
patent: 4931365 (1990-06-01), Inoue et al.

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