Metal treatment – Process of modifying or maintaining internal physical... – Processes of coating utilizing a reactive composition which...
Patent
1989-04-28
1991-08-13
Silverberg, Sam
Metal treatment
Process of modifying or maintaining internal physical...
Processes of coating utilizing a reactive composition which...
148262, 562 21, 562 13, C23C 2217
Patent
active
050393626
ABSTRACT:
Effective, titanium-free agents for activating metal surfaces prior to phosphating these surfaces with phosphating baths containing zinc ions can be made by reacting alkali metal phosphates with 1,1-diphosphonic acids and their alkali metal salts and/or poly(aldehydocarboxylic acids) and their alkali metal salts.
REFERENCES:
patent: 2164024 (1939-06-01), Schneider et al.
patent: 2310239 (1943-02-01), Jernstedt
patent: 2456947 (1948-12-01), Jernstedt
patent: 2462196 (1949-02-01), Jernstedt
patent: 3141804 (1964-07-01), Gold et al.
patent: 3547711 (1970-12-01), Ashdown
patent: 3686145 (1972-08-01), Haschke et al.
patent: 3793222 (1974-02-01), Haschke et al.
patent: 3896086 (1975-07-01), Haschke et al.
patent: 3923742 (1975-12-01), Haschke et al.
patent: 4266677 (1981-05-01), Muller et al.
patent: 4384900 (1983-05-01), Gotta et al.
Brands Karl-Dieter
Christophliemk Peter
Endres Helmut
Roland Wolf-Achim
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Silverberg Sam
Szoke Ernest G.
Wisdom, Jr. Norvell E.
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