Rust inhibitor and compositions thereof

C - Chemistry – Metallurgy – 07 – C

Patent

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253/117, 44/26,

C07C 69/52 (2006.01) C07D 249/18 (2006.01) C10L 1/18 (2006.01) C10L 1/19 (2006.01) C10L 1/222 (2006.01) C10L 1/223 (2006.01) C10L 1/232 (2006.01) C10M 129/76 (2006.01) C10M 133/02 (2006.01) C23F 11/12 (2006.01)

Patent

CA 1095057

ABSTRACT Novel dicarboxylic ester-acids resulting from the condensation of an alkenylsuccinic anhydride with an aliphatic hydroxy acid having from 2 to 18 carbon atoms and amine salts of such ester- acids are useful as rust or corrosion inhibitors in organic compositions. These novel dicarboxylic ester-acids have the formula Image where R is an alkenyl group having from 4 to 24 carbon atoms, and R1 is hydrogen, C1-C16 alkyl, aryl, alkaryl, carboxy or C1-C16 alkyl carboxy, and amine salts thereof.

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