Deicing and anti-icing composition for aircraft

Details Deicing and anti-icing composition for aircraft Deicing and anti-icing composition for aircraft

1997-04-16

1998-10-06

Green, Anthony

Compositions

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

106 13, C09K 318

Patent

active

058172521

ABSTRACT:
A deicing and anti-icing composition for aircraft surfaces including a base compound being propylene glycol and/or ethylene glycol in the range of 35.0% to 80.0% by weight of the deicing and anti-icing composition. A diluent is included in the form of water for use as a carrier fluid for the glycol. A first molecular weight non-ionic surfactant agent is included having an HLB in the range of 4 to 17, and a second molecular weight non-ionic surfactant agent is included having an HLB in the range of 5 to 18. The second non-ionic surfactant agent has an HLB at least two (2) units higher than the first non-ionic surfactant agent. An emulsifier is included in the form of a polycarboxylate compound being in the range of 1 ppm to 0.5% by weight of the deicing and anti-icing composition. A pH control agent maintains the pH of the deicing and anti-icing composition between a 6 and 10 value.

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Chemical Abstract No. 109:24348 which is an abstract of European Patent Specification No. 257,720 (Mar. 1988).

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