Metal corrosion inhibition
AssigneeMomentive Performance Materials Inc.
InventorsShiu-Chin H. Su, Suresh K. Rajamaran
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Abstract
A process is provided for inhibiting the corrosion of metal that comes into contact with a static or flowing aqueous medium which comprises contacting at least a portion of the exposed surface of the metal with aqueous medium containing a metal corrosion inhibiting amount of at least one ureido silane and, optionally, one or more added inorganic and/or other organic materials.
Claims30
A process for inhibiting the corrosion of metal that comes into contact with a static or flowing aqueous medium which comprises contacting at least a portion of the exposed surface of the metal with aqueous medium containing a metal corrosion inhibiting amount of at least one ureido silane and, optionally, one or more added inorganic and/or other organic materials.
The ureido silane metal corrosion inhibitor is at least one compound of the general formula:
- wherein each occurrence of R independently is hydrogen, alkyl of from 1 to 6 carbon atoms, cycloalkyl, alkenyl of from 1 to 6 carbon atoms, arylene or alkarylene;
- R1 is a substituted or unsubstituted aliphatic or aromatic group;
- each R2 independently is a monovalent hydrocarbon group of from 1 to 10 carbon atoms;
- and, each R3 is independently chosen from the group consisting of hydrogen, linear or branched alkyl, linear or branched alkoxy-substituted alkyl, linear or branched acyl.
A corrosion-inhibited metal having at least a portion of its exposed surface in contact with an aqueous medium containing a metal corrosion inhibiting amount of at least one ureido silane and, optionally, one or more added inorganic and/or other organic materials.
Dependencies are inferred from the claim text.