Aircraft deicing fluid with thermal and pH-stable wetting agent

Details Aircraft deicing fluid with thermal and pH-stable wetting agent Aircraft deicing fluid with thermal and pH-stable wetting agent

1993-11-15

1995-02-14

Green, Anthony

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

252 71, 206 13, C09K 318

Patent

active

053892763

ABSTRACT:
Disclosed is an ethylene glycol based deicing/anti-icing composition which contains a thickener comprising a polyacrylic acid having a molecular weight of from about 90,000 to 100,000 and a wetting agent from the group consisting of nonylphenol ethoxylates, alkarylsulfonates, polyoxyethylene phosphates and tetrafunctional block copolymers of EO/PO on an ethylene diamine backbone and demonstrates improvement in anti-icing ability as measured by holdover time while not adversely effecting aerodynamic performance or Newtonian rheology of the deicer measured by passing the minimum requirements of the AMS test for Type I fluids.

REFERENCES:
patent: 3412050 (1968-11-01), Wahlberg
patent: 4358389 (1982-11-01), Konig-Lumer et al.
patent: 4585571 (1986-04-01), Bloom
patent: 4698172 (1987-10-01), Tye et al.
patent: 4744913 (1988-05-01), Salvadore et al.
patent: 4954279 (1990-09-01), Ma et al.
patent: 5064552 (1991-11-01), Oppenlaender et al.
patent: 5118434 (1992-06-01), Meyer et al.
patent: 5118435 (1992-06-01), Nieh
patent: 5273673 (1993-12-01), Ashrawi et al.

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