Polyparabanic acid/copper foil laminates obtained by direct solu

Details Polyparabanic acid/copper foil laminates obtained by direct solu Polyparabanic acid/copper foil laminates obtained by direct solu

1977-09-12

1979-04-10

Kendall, Ralph S.

Stock material or miscellaneous articles

Composite

Of metal

427388R, 427 96, 427195, 156331, B32B 1508

Patent

active

041489691

ABSTRACT:
This invention relates to processes and techniques for forming metal and/or plastic/polyparabanic acid (PPA) laminates particularly for use as a component of electrical and electronic systems, especially as flexible circuit materials. Laminate species not requiring intermediate adhesive layers, not fabricated from preformed PPA films and not requiring subsequent cross-linking or other curing reactions are preferred. Solvent casting of PPA is a preferred method of preparing such laminates.

REFERENCES:
patent: 3547897 (1970-12-01), Patton
patent: 3591562 (1971-07-01), Patton
patent: 3635905 (1972-01-01), Patton
patent: 3661859 (1972-05-01), Patton
patent: 3682960 (1972-08-01), Haller
patent: 3684773 (1972-08-01), Patton
patent: 3732185 (1973-05-01), Hocker et al.
patent: 3821018 (1974-06-01), Grant
patent: 3835121 (1974-09-01), Preston
patent: 3953626 (1976-04-01), Suzuki et al.

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