Biodegradable corrosion inhibitors

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 233/47 (2006.01) C07C 237/22 (2006.01) C09K 8/528 (2006.01) C09K 8/54 (2006.01) C10L 1/14 (2006.01) C10L 1/224 (2006.01) C10L 1/238 (2006.01) C10L 1/24 (2006.01) C10L 10/04 (2006.01) C10M 133/16 (2006.01) C23F 11/14 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/26 (2006.01)

Patent

CA 2332836

Compounds of formula (I), wherein R is the .alpha.-side chain of an amino acid, R1 is a straight or branched chain alkyl or alkenyl residue containing 1 to 30 carbon atoms or a cycloalkyl or aryl residue having from 5 to 12 carbon atoms; R2 is hydrogen or aryl or a straight chain alkyl or alkenyl residue having from 1 to 30 carbon atoms or together with R is the .alpha.-side chain of an amino acid; X is a linking moiety and Y is a suitable backbone moiety on which to append the N-acylated amino acid moieties via X linkages; and n is a number between 1 and the total number of available reactive substituents on Y; are corrosion inhibitors and/or scale inhibitors.

L'invention porte sur des composés de formule (I) dans laquelle: R est la chaîne latérale .alpha. d'un acide aminé; R1 est un groupe alkyle ou alcényle C¿1-30? à chaîne droite ou ramifiée, ou un groupe cycloalkyle ou aryle C¿5-12?; R2 est H ou aryle ou un groupe alkyle ou alcényle C¿1-30? à chaîne droite ou ramifiée ou forme avec R la chaîne latérale .alpha. d'un acide aminé; X est un fragment de liaison; Y est un fragment de squelette sur lequel peuvent se fixer les fragments d'acides aminés N-acétylés par l'intermédiaire de liaisons X; et n est un nombre compris entre 1 et le nombre total des substituants réactifs disponibles sur Y. Lesdits composés sont des inhibiteurs de corrosion et/ou des inhibiteurs scalaires.

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