摘要:
A method for transmitting power by traction wherein the traction fluid is a borate ester having the general formula: wherein R, is a saturated or unsaturated mono-cyclic group with from 1 to 5 side groups having from 1 to 20 carbon atoms, and R 2 and R 3 are the same or different cyclic groups as defined for R 1 or alkyl groups with from 1 to 20 carbon atoms. A traction drive mechanism utilising such a borate ester as the traction fluid.