C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/18 (2006.01)
Patent
CA 2264882
Disclosed is a composition designed to lower the freezing point of water in particular in order to prevent the formation of ice. The composition contains a thickener, in addition to alcohols that are traditionally known to lower freezing points, in order to inhibit, at least, composition run-off from sloping or vertical surfaces such as car windows, aircraft surfaces and the like. The composition also contains a hydroscopic additive and/or a short- chain aliphatic monovalent alcohol in order to form, on the one hand, a film on at least the surface which is to be de-iced and on the other hand, to facilitate removal of the composition by means of water, for example, after de- icing.
L'invention concerne une composition destinée à abaisser le point de congélation, notamment de l'eau, de façon à empêcher la formation de glace. La composition contient, outre les alcools abaissant le point de congélation classiques connus, un épaississant qui permet au moins de freiner l'écoulement de la composition depuis des surfaces inclinées ou verticales, telles que vitres de véhicules, surfaces d'aéronefs, etc. Elle contient en outre comme additif une substance hygroscopique et/ou un alcool monovalent aliphatique à chaîne courte, de façon d'une part à former une pellicule sur au moins la surface à dégeler et d'autre part à faciliter l'élimination de la composition après dégivrage, par exemple avec de l'eau.
Gowling Lafleur Henderson Llp
Kuyus-Stiftung
LandOfFree
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