ALKOXYSILANE DOUBLE CLUSTER COMPOUNDS WITH SILICONE BRIDGES AND THEIR PREPARATION AND USE
ABSTRACT Novel alkoxysilane cluster compounds are described having the formula: wherein n is an integer from 0 to 300; R is hydrogen, alkyl, alkenyl; aryl, aralkyl or -OSi(OR')3; each R' is independently selected from alkyl, alkenyl, aryl or ar-alkyl with the proviso that at least a majori...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | ABSTRACT Novel alkoxysilane cluster compounds are described having the formula: wherein n is an integer from 0 to 300; R is hydrogen, alkyl, alkenyl; aryl, aralkyl or -OSi(OR')3; each R' is independently selected from alkyl, alkenyl, aryl or ar-alkyl with the proviso that at least a majority of R' radi-cals are sterically hindered alkyl groups having at least 3 carbon atoms; and R" and R''' are independently selected from hydrogen, alkyl, alkenyl, aryl, aralkyl, hydroalkyl, and halo or cyano substituted alkyl, alkenyl, aryl, ar-alkyl, and hydroalkyl. The preparation of these alkoxy-silane cluster compounds is also described. The compounds are useful in the operation of a fluid operating system which uses a hydraulic pressure transmission fluid or a heat transfer fluid. |
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