Ferrous complexing agent for autodeposition

Details Ferrous complexing agent for autodeposition Ferrous complexing agent for autodeposition

1981-08-24

1983-11-08

Morgenstern, Norman

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524300, 524321, 524398, 427435, C08K 509

Patent

active

044143508

ABSTRACT:
An autodepositing coating composition of the ferric iron-containing type wherein ferrous iron tends to build up in concentration in the composition and affect adversely the coating capabilities of the composition as it is used continuously to autodeposit coatings on iron-containing surfaces, the improvement comprising adding to said composition, in an amount effective to decrease the amount of ferrous iron which tends to adversely affect the coating capabilities of the composition, a carboxylic acid which is effective in forming a complex with said ferrous iron.

REFERENCES:
patent: 3791431 (1974-02-01), Steinbrecher
patent: 3865617 (1975-02-01), Shimizu et al.
patent: 3914519 (1975-10-01), Hall et al.
patent: 4186219 (1980-01-01), Hall
patent: 4214022 (1980-07-01), Kunnen et al.
patent: 4215162 (1980-07-01), Kunnen et al.
Hodgman et al., Handbook of Chem. & Physics, 43rd Ed., Chem. Rubber Co., pp. 1476-1479.
Mehltrettes et al., I & EC, vol. 45, No. 12, pp. 2782-2784, "Sequestration by Sugar Acids".
McCutchen, Detergent & Emulsifiers, 1970 Annual Allred Publishing Corp., Ridgewood, N.J., p. 65.
Smith, The Sequestration of Metals, MacMillan Co., N.Y., 1959, pp. 73-76.

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