Process for producing aromatic imide polymer laminate material

Details Process for producing aromatic imide polymer laminate material Process for producing aromatic imide polymer laminate material

1983-04-21

1985-04-02

Page, Thurman K.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427 96, 4284735, B05D 302

Patent

active

045087660

ABSTRACT:
An aromatic imide polymer laminate material usable as a flexible circuit board substrate is produced by the process comprising coating a surface of a metallic foil with a solution of an aromatic imide polymer comprising at least 90 molar % of recurring unit of the formula (I): ##STR1## wherein R is a symmetrical bivalent aromatic radical having no substituent, and dissolved in a solvent consisting essentially of at least one phenolic compound; and heat drying the resultant solution layer to form an aromatic imide polymer solid layer firmly bonded directly to the metallic foil.

REFERENCES:
patent: 4411952 (1983-10-01), Sasaki et al.

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