| 摘要 |
<p>Novel alkoxysilane cluster compounds are described having the formula M {OSiÓSi(OR')3!3}a or M {OSiRÓSi(OR')3!2}a wherein a 3 2, 3 or 4; M is a substituted or unsubstituted branched or straight chain hydrocarbon di-, tri- or tetraradical having up to 25 carbon atoms; R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group and each R' is independently selected from the same group as R with the proviso that at least a majority of R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms. The preparation of these novel alkoxysilane cluster compounds is also described. These novel compounds are useful as heat transfer fluids, hydraulic fluids, brake fluids or transmission fluids.</p> |
