Vacuum pretreatment process for durable electroplated coatings o

Details Vacuum pretreatment process for durable electroplated coatings o Vacuum pretreatment process for durable electroplated coatings o

1982-07-29

1983-07-26

Demers, Arthur P.

Chemistry: electrical and wave energy

Processes and products

204 32R, 204 38B, 204 38R, 204192E, 427250, C25D 554

Patent

active

043953131

ABSTRACT:
A method of forming adherent electrodeposited coatings on ABS and PPO comprising the steps of etching and bonding oxygen to an ABS or PPO surface in an RF oxygen glow discharge, vacuum depositing a metal having an affinity for oxygen, and then vacuum depositing a readily electroplatable metal. Even decorative chrome electroplatings can be performed without producing blistering or peeling.

REFERENCES:
patent: 3547785 (1970-12-01), Sakuma
patent: 3672940 (1972-06-01), Funada et al.
patent: 4172156 (1979-10-01), Ritter et al.

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