C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/18 (2006.01)
Patent
CA 2396054
Improved deicing compositions and methods are provided. The invention is directed to deicing compositions which are substantially less corrosive than allowed for use on aircraft metal parts. The subject invention is also directed at deicing compositions which inhibit the corrosive effects of conventional road salt. The inventive deicing compositions comprise effective deicing amounts of succinate salts, such as potassium succinate (trihydrate), ammonium succinate (anhydrous), sodium succinate (hexahydrate), either alone or in combination. Figure 1 is a graph depicting the ice penetration performance of potassium succinate (present invention) and CMA (a conventional road salt).
La présente invention concerne des compositions et des procédés de dégivrage. L'invention concerne des compositions de dégivrage sensiblement moins corrosives que celles utilisées couramment sur des parties métalliques des aéronefs. L'invention concerne également des compositions de dégivrage qui permettent l'inhibition des effets corrosifs du sel de voirie classique. La composition de dégivrage selon l'invention comprend des quantités efficaces de succinates de sels, tels le succinate de potassium (trihydrate), le succinate d'ammonium (anhydre), le succinate de sodium (hexahydrate), soit seul ou en combinaison. La figure 1 présente un graphique représentant l'efficacité de pénétration dans la glace du succinate de potassium de la présente invention et de l'acétate de calcium-magnésium (un sel de voirie traditionnel).
Alizadeh Hasan
Berglund Kris A.
Dunuwila Dilum D.
Applied Carbochemicals Inc.
Bioamber Inc.
Michigan State University
Robic
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