Water-based hydraulic fluids containing hydroxyalkylated...

C - Chemistry – Metallurgy – 10 – M

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C10M 173/02 (2006.01) C10M 133/42 (2006.01)

Patent

CA 1199906

WATER-BASED HYDRAULIC FLUIDS CONTAINING HYDROXYALKYLATED ISOCYANURATES Abstract of the Disclosure Disclosed are water-based, fire resistant hydraulic fluids which comprise: (a) about 20% to about 60% by weight water; (b) a sufficient amount of a hydroxyalkylated isocyanurate to form a hydraulic fluid with a viscosity from about 100 SUS to about 400 SUS at 100°F, said hydroxyalkylated isocyanurate having the formula: Image wherein x, y and z are each from about 3 to about 15, and each R is individually selected from hydrogen and methyl; (c) about 0.01% to about 5% by weight of a liquid phase corrosion inhibitor; and (d) about 0.01% to about 5% by weight of a vapor phase corrosion inhibitor. These water-based isocyanurate fluids are comparable to known water-based glycol fluids in important operating properties such as lubricity and fire resistance, and have the additional advantage of offering a substantial reduction in the flammability of the residual material resulting from loss of water content.

410516

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