Non-petroleum based metal corrosion inhibitor
OwnerAlvin J. Conner, Sr.inventor
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Abstract
A non-petroleum based metal corrosion inhibitor, a process for preparing the inhibitor, a method of applying it to metal surfaces and advantages of the inhibitor and of surfaces which are coated with it are presented. The inhibitor is a solution of compounds mixed together in particular proportions to form a non-petroleum based coating for preventing, or inhibiting, the oxidation of metals. The solution is prepared from organic monobasic acids, a lubricant, a mixture of amines, and water. The solution is applied by spraying or rolling over the surface of steel or other metal. The coating inhibits oxidation of the metal surface and need not be removed from the surface prior to painting.
Claims16
A non-petroleum based metal corrosion inhibiting composition consisting essentially of a solution of one part by weight of an aqueous concentrate and up to five parts by weight of water, said aqueous concentrate comprising, per 100 parts by weight of the concentrate:
- (a) 5 to 20 parts by weight of a monobasic organic acid having from 8 to 20 carbon atoms;
- (b) 0.5 to 4 parts by weight of a lubricant;
- (c) 0.5 to 4 parts by weight of an alkylaminoalkanolamine of the formula:
- ##STR2## where R.sup.1 and R.sup.2 are independently alkylidene of 1-4 carbon atoms, and R.sup.3 is hydrogen or alkyl of 1-4 carbon atoms;
- (d) 10 to 35 parts by weight of benzoic acid;
- and
- (e) 5 to 20 parts by weight of an amine which forms a water soluble salt with benzoic acid.
Dependencies are inferred from the claim text.