| abstract |
Hydraulic fluids containing novel compounds of the general formula ##STR1## wherein: (a) each R 1 is a hydrocarbyl group, or a group of the formula: ##STR2## and each R 1 may be the same as, or different from, any other group R 1 . n (b) R 2 is a group as defined for R 1 , or a group of the formula: n n --O(R.sup.5 O).sub.n Si(R.sup.1).sub.3 (iv) n n and each group R 2 may be the same as, or different from, any other group R 2 . n (c) each of R 3 and R 4 is independently a group of the formula: ##STR3## (d) R 5 is an alkylene or an arylene group and each R 5 may be the same as, or different from, any other group R 5 , n (e) R 6 is a hydrocarbyl group of hydrogens and each group R 6 may be the same as, or different from, any other group R 6 , n (f) n is zero or an integer and each n may be the same as, or different from, any other n. |