Unichema Chemie B.v.

Abraham Cornelis De Mooij

Arie Dick Kardol

Thomas Friedrich B&uuml;nemann

The invention relates to compositions comprising an ester of a polyol and a mixture of fatty acids, wherein at least a part (I) the esterified fatty acids has a chain length of 5-12 carbon atoms and another part (II) of the esterified fatty acids has a chain length of 16-22 carbon atoms, and wherein the composition has a viscosity of 7000 mm /s or less, when tested according to ASTM (D2531). Such compositions have unexpected good low temperature properties, in particular a good rheology after having been kept for a prolonged time at a low temperature (e.g. at &minus;30&deg; C.). These compositions are suitable for use as (part of) hydraulic fluid in applications at low temperatures.

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RS Gouda, Netherlands

Abraham Cornelis De Mooij