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US 4,306,988 AGranted
Selected poly(oxyalkylated) 1,3,4-thiadiazoles and their use as corrosion inhibitors
AssigneeOlin Corporation
InventorEugene F. Rothgery
Life of this patent
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Abstract
Disclosed are selected poly(oxyalkylated) 1,3,4-thiadiazoles of the formula: ##STR1## wherein each R is individually selected from hydrogen and methyl; and the sum of y and z is from 2 to about 30. These compounds are shown to be effective corrosion inhibitors in corrosive liquids such as acid metal-treating baths.
Claims10
An acid metal-treating bath comprising an acid and an effective corrosion-inhibiting amount of a poly (oxyalkylated) 1,3,4-thiadiazole having a formula:
- ##STR4## wherein each R is individually selected from either H or CH.sub.3 ;
- and the sum of y and z is from 2 to about 30.
A process for inhibiting corrosion of metal surfaces caused by corrosive aqueous solutions, which comprises
- contacting said metal surfaces with an effective corrosion-inhibiting amount of a poly(oxyalkylated) 1,3,4-thiadiazole having a formula:
- ##STR5## wherein each R is individually selected from either H or CH.sub.3 ;
- and the sum of y and z is from 2 to about 30.
Dependencies are inferred from the claim text.