Title:
ELECTROCHEMICAL COATING ON METAL WITH PROTECTION COATING OF PHENOL RESIN
Document Type and Number:
Japanese Patent JPS5516075
Kind Code:
A
Abstract:
Adherent insoluble coating film of a phenolic resin is obtained by electrolysis of an alkaline-reacting aqueous electrolyte comprising phenol, a mono- or di-substituted phenol with substituent(s) in o- or m-position, and an alkylene diamine, in specific proportions. 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 micron and up to about 25-30 microns are obtainable within a short time at the expense of 2-2.5 Faradays per mole deposited phenol. The substituted phenol is preferably o-chloro-phenol, and the diamine is preferably ethylenediamine.
Inventors:
JIYURIAANO MENGOORI
SERUJIO DAOORIO
UUGO JIYURIO
KARURO FUORONAARI
SERUJIO DAOORIO
UUGO JIYURIO
KARURO FUORONAARI
Application Number:
JP4339479A
Publication Date:
February 04, 1980
Filing Date:
April 09, 1979
Export Citation:
Assignee:
FIAT RICERCHE
CONSIGLIO NAZIONALE RICERCHE
CONSIGLIO NAZIONALE RICERCHE
International Classes:
C08G65/38; C08G65/44; C09D5/44; C08G65/00; C09D161/04; (IPC1-7): C08G8/10; C09D3/56; C09D5/40