Compositions and process for metal treatment

Details Compositions and process for metal treatment Compositions and process for metal treatment

1987-09-30

1988-09-13

Silverberg, Sam

Metal treatment

Compositions

Heat treating

148 615Z, 148 615R, C23C 2278

Patent

active

047707178

ABSTRACT:
Compositions and processes for activating metal surfaces prior to coating with a phosphate compound are disclosed. Colloidal alkyl benzene sulfonate salts are disclosed as a novel class of activating materials to replace titanium containing Jernstedt salt baths for treatment of metal surfaces prior to coating with a protective phosphate material.

REFERENCES:
patent: 2310239 (1943-02-01), Jernstedt
patent: 2456947 (1948-12-01), Jernstedt
patent: 2462196 (1949-02-01), Jernstedt
patent: 2490062 (1949-12-01), Jernstedt
patent: 3741747 (1973-01-01), Hamilton
patent: 3864139 (1975-02-01), Heller
patent: 4152176 (1979-05-01), Guhde
patent: 4497667 (1985-02-01), Vashi
patent: 4539051 (1985-03-01), Hacias

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