C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
C23F 11/10 (2006.01)
Patent
CA 2202370
Phosphonated cotelomers derived from acrylic acid and 2-acrylamilo-2-methyl propane sulphonic acid have been found to interact synergistically with known phosphonate corrosion inhibitors especially hydroxy ethylidene diphosphonic acid, 2 phosphono butane 1,2,4 tricarboxylic acid and 2-hydroxy phosphono acetic acid. Combinations of these synergistic components can be added to aqueous media to inhibit the corrosion of metal surfaces more efficiently.
On a découvert que des co-télomères phosphoniques dérivés d'acide acrylique et d'acide sulfonique de 2-acrylamino-2-méthyle propane exercent une interaction synergique avec des inhibiteurs de corrosion connus à base de phosphonates, particulièrement, l'acide diphosphonique d'hydroxyéthylidène, l'acide 1,2,4 tricarboxylique de 2-phosphonobutane et l'acide phosphonoacétique 2-hydroxy. On peut incorporer des combinaisons de ces constituants synergiques à des milieux aqueux, afin d'inhiber la corrosion de surfaces métalliques de façon plus efficace.
Fmc Corporation (uk) Limited
Osler Hoskin & Harcourt Llp
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