Compositions – Preservative agents – Anti-corrosion
Patent
1988-11-09
1990-10-09
Terapane, John F.
Compositions
Preservative agents
Anti-corrosion
25238954, 25238961, 25238962, 252 75, C23F 1108, C09K 500
Patent
active
049618784
ABSTRACT:
A composition for inhibiting metal corrosion in a closed aqueous cooling system comprising an aqueous mixture of (a) a nitrate, (b) a silicate, (c) an acrylate polymer, (d) an amine oxide and (e) tolyltriazole. A preferred embodiment also includes a molybdate.
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patent: 4359413 (1982-11-01), Ward et al.
patent: 4452715 (1984-06-01), Hirozawa
patent: 4778655 (1988-08-01), Greaves
Evaluation of Molybdate as an Inhibitor in Automotive Engine Coolants, Corrosion/82, (Paper No. 265), 3/82 (Houston, TX).
Drew Principles of Industrial Water Treatment pp. 147-151.
"Automotive Engine Coolant Inhibitors for Aluminum", by R. R. Wiggle, National Assoc. of Corrosion Engrs., June, 1981, pp. 13-18.
"Evaluation of Molybdate as an Inhibitor in Automotive Engine Coolants", by M. S. Vukasovich et al., Aug., 1983, pp. 25-33.
ASTM D-1384, "Standard Method for Corrosion Test for Engine Coolants in Glassware", Bk. of ASTM Standards, Part 30, p. 213 (1976).
Drew Chemical Corporation
Fee Valerie D.
Schneider Walter H.
Terapane John F.
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