专利名称：Method for electrochemically coating a
metallic substrate with a protective film of aphenolic resin
发明人：Giuliano Mengoli,Sergio Daolio,Ugo
Giulio,Carlo Folonari
申请号：US06/027700申请日：19790406公开号：US04231851A公开日：19801104
摘要：Adherent insoluble coating film of a phenolic resin is obtained by electrolysis ofan alkaline-reacting aqueous electrolyte comprising phenol, a mono- or di-substitutedphenol with substituent(s) in o- or m- position, and an alkylene diamine, in specificproportions. The current density shall never exceed 10 mA/sq.cm. The voltage is from 2.5 V to 10 V and is preferably kept constant. Coating thickness values exceeding 1 micronand up to about 25-30 microns are obtainable within a short time at the expense of 2-2.5Faradays per mole deposited phenol. The substituted phenol is preferably o-chloro-phenol, and the diamine is preferably ethylenediamine.
申请人：CENTRO RICERCHE FIAT S.P.A.
代理机构：Sughrue, Rothwell, Mion, Zinn and Macpeak
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