Surface midification of a polyimide

Details Surface midification of a polyimide Surface midification of a polyimide

1990-05-15

1992-07-28

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Coating predominantly nonmetal substrate

205169, 205187, 427301, 427306, 156668, C25D 554, B05D 310

Patent

active

051338408

ABSTRACT:
The surface modification of polyimide materials by a chemical process is disclosed to provide a variety of functional groups on the surface. The surface is treated to produce polyamic acid carboxyl groups which are subsequently reacted with epoxies, hydrazines, or alcohols. The carboxyl groups can be also be subjected to other organic reactions, such as reduction with metal hydrides and the like. The versatility and controllability of this process lends itself to promoting adhesion of the polyimide to similarly treated polyimides, other polymers and other substrates as well as combining with metals such as metal catalysts used for depositing conductors on non-conductive surfaces such as circuit boards.

REFERENCES:
patent: 3361589 (1968-01-01), Lindsey
patent: 4078096 (1978-03-01), Redmont et al.
patent: 4517254 (1985-05-01), Grapentin et al.
patent: 4668354 (1987-05-01), Levy
patent: 4832799 (1989-05-01), Knudsen et al.

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