Hydroxyphosphono carboxylic acids

C - Chemistry – Metallurgy – 07 – F

Patent

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31/59, 260/501.1

C07F 9/38 (2006.01) C02F 5/14 (2006.01) C07F 9/655 (2006.01) C09K 15/32 (2006.01) C10M 137/12 (2006.01) C10M 173/02 (2006.01) C23F 11/00 (2006.01) C23F 11/167 (2006.01)

Patent

CA 1289145

Hydroxyphosphono carboxylic acids Abstract of the Disclosure New compounds have the formula I: Image wherein R is a C1-C12 straight or branched chain alkyl residue, a C2-C12 straight or branched chain alkenyl residue, a C5-C12 cycloalkyl residue, a C6-C10 aryl residue or C7-C12 aralkyl residue; and X is a C1-C10 straight or branched alkylene residue, a C2-C10 straight or branched chain alkenylene residue or a C6-C10 arylene residue; as well as derivatives of the compounds of formula I; and enantiomers, racemic mixtures, and mixtures of diastereomers. The new compounds are useful e.g. as corrosion inhibitors in aqueous systems.

541198

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