Adhesion of metal coatings of polypyromellitimides

Details Adhesion of metal coatings of polypyromellitimides Adhesion of metal coatings of polypyromellitimides

1992-08-03

1993-11-23

Beck, Shrive

Coating processes

Coating by vapor, gas, or smoke

Metal coating

427124, 4272481, 427304, 427306, C23C 1400, C23C 2600

Patent

active

052642488

ABSTRACT:
The adhesion of metal coatings, such as those produced by electroless or physical vapor deposition, on polypyromellitimide surfaces is improved by prior treatment of the surface with concentrated sulfuric acid, followed by aqueous alkali metal hydroxide of at least about 2M concentration. Further metal may be deposited on the surface, for example by electrolytic or physical vapor deposition, following the original metal deposition.

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Baum et al., Chem. Mater., 3, 714-720 (1991) (no month available).
Somasiri et al., ACS Symposium Series, 440, 235-240 (1990) (no month available).

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