Compositions – Preservative agents – Anti-corrosion
Patent
1989-06-05
1991-01-08
Stoll, Robert L.
Compositions
Preservative agents
Anti-corrosion
2523894, 25238951, 25228961, 106 1405, 106 1427, 106 117, C09K 300, C04B 902, C09D 508
Patent
active
049833219
ABSTRACT:
A corrosion-preventing soyabean-glycerol alkyd resin is preprared by combng soyabean oil and glycerol in a reaction kettle, and after heating to about 400.degree. F., fused litharge is loaded. The temperature is then increased to about 440.degree. F. and held until a clear solution is formed. Phthalic anhydride is then loaded and heat gained cautiously to about 450.degree. F. Butylphenol resin is loaded. Then China wood oil is loaded. A first carbon dioxide blow is commenced. Then a second carbon dioxide blow is initiated. The mixture is then cooled to about 425.degree. F. and held. The mixture is dropped into xylene and thinned with Varnish Makers' and Painter's Naptha (petroleum thinner) prior to use with the barium metaborate corrosion preventer compound of this invention which was developed to replace chromium which has reduced availability due to exportation restrictions from the major supplier country. The corrosion prevention surface primer coating composition of this invention comprises a weight percent range of 30-32 of the above soyabean-glycerol alkyd resin; 36-38 weight percent barium metaborate; 6-7 weight percent phenol formaldehyde; metal compound additives of titanium dioxide 5-6 weight percent, black iron oxide 1-2 weight percent, magnesium silicate 5-7 weight percent, and aluminum silicate; of 0.3 to 0.6, pertroleum thinner 10.0-12.2 weight percent; butanol 0.4 to 0.8 weight percent; and napthenate drying agents 0.1 to 0.3 weight percent each of cobalt napthenate, manganese naphthenate, and iron napthenate.
REFERENCES:
patent: 3711420 (1973-01-01), Jones
patent: 4108811 (1978-08-01), Eckhoff
patent: 4304707 (1981-12-01), Kuehn
patent: 4462829 (1984-07-01), Heiss
patent: 4789566 (1988-12-01), Tatsuno et al.
Harris Cynthia
Stoll Robert L.
The United States of America as represented by the Secretary of
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