C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/18 (2006.01)
Patent
CA 2563638
A nontoxic deicing/anti-icing fluid includes a freezing point depressant selected from short chain polyols having 3 to 5 carbons atoms, and mixtures thereof, a wetting agent, an antioxidant/preservative, and water. The fluid has an LD50 greater than about 10,000 mg/L. Another deicing/anti-icing fluid includes the freezing point depressant, a vinylpyrrolidone polymer having a molecular weight between about 10,000 and about 700,000, and water. A runway deicing fluid includes glycerol, a buffer, an antioxidant/preservative, and water. Another deicing/anti-icing fluid includes a freezing point depressant having hydrophobic character, a wetting agent comprising an organophosphorus compound capable of producing an organic wettable surface, and water.
L'invention concerne un fluide de dégivrage/d'anti-givrage non toxique contenant un inhibiteur de point de gel sélectionné parmi des polyols à chaîne courte ayant 3 à 5 atomes de carbone, et leurs mélanges ; un agent mouillant ; un anti-oxydant/conservateur et de l'eau. Le fluide a un LD¿50? supérieur à environ 10.000 mg/L. Un autre fluide de dégivrage/d'anti-givrage contient un inhibiteur de point de gel, un polymère de vinylpyrrolidone au poids moléculaire situé entre 10.000 et environ 700.000, et de l'eau. Un fluide de dégivrage de piste contient du glycérol, un tampon, un anti-oxydant/conservateur et de l'eau. Un autre fluide de dégivrage/d'anti-givrage contient un inhibiteur de point de gel à caractère hydrophobe, un agent mouillant contenant un composé organophosphorus permettant d'obtenir une surface mouillable organique, et de l'eau.
Chauhan Satya P.
Conkle Nicholas H.
Frye John G.
Kuczek Sara F.
Monzyk Bruce F.
Battelle Memorial Institute
Ridout & Maybee Llp
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