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Title: Alkoxysilane double cluster compounds with silicone bridges and their preparation and use
Claims: I claim: 1. In a functional fluid method comprising converting a first mechanical effort to pressure at a first location, transmitting said pressure from said first location to a second location through use of a hydraulic fluid, and converting said pressure at said second location to a second mechanical effort, the improvement characterized by using a hydraulic fluid comprising an effective amount of a compound having the formula: ##STR10## wherein n is an integer from 0 to 300; R is hydrogen, alkyl, alkenyl, aryl, aralkyl or --OSi(OR').sub.3 ; each R' is independently selected from alkyl, alkenyl, aryl or aralkyl with the proviso that at least a majority of R' radicals 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, aralkyl, and hydroalkyl. 2. The method of claim 1 wherein at least a majority of the R' groups are sterically hindered alkyl groups having about 3 to about 24 carbon atoms. 3. The method of claim 2 wherein the R' groups are sterically hindered alkyl groups having about 4 to about 12 carbon atoms. 4. The method of claim 1 wherein n is an integer from 0 to 5. 5. The method of claim 4 wherein n is an integer from 0 to 3. 6. The method of claim 1 wherein R is hydrogen, alkyl or alkenyl having about 1 to about 18 carbon atoms or aryl or aralkyl having about 6 to about 24 carbon atoms, and each R' is independently selected from alkyl or alkenyl having about 1 to about 24 carbon atoms or aryl or aralkyl having about 6 to about 24 carbon atoms, subject to the proviso that at least a majority of the R' groups are sterically hindered alkyl groups having about 3 to about 24 carbon atoms. 7. The method of claim 6 wherein R is hydrogen, alkyl or alkenyl having about 1 to about 8 carbon atoms or aryl or aralkyl having about 6 to about 14 carbon atoms, and each R' is independently selected from alkyl or alkenyl having about 1 to about 12 carbon atoms or aryl or aralkyl having about 6 to about 14 carbon atoms, subject to the proviso that at least a majority of the R' groups are sterically hindered alkyl groups having about 4 to about 12 carbon atoms. 8. The method of claim 1 wherein R" and R'" are independently selected from lower alkyl and alkenyl of about 1 to about 4 carbon atoms. 9. The method of claim 7 wherein R" and R'" are independently selected from lower alkyl and alkenyl of about 1 to about 4 carbon atoms, and n is an integer from 0 to 5, and the R' groups are all sterically hindered alkyl groups of about 4 to about 12 carbon atoms. 10. The method of claim 1 wherein R is methyl, R' is sec-butyl, R" and R'" are selected from hydrogen, methyl, ethenyl and phenyl, and n is an integer from 0 to 3. 11. In a functional fluid method comprising passing heat from a first heat conductor to a heat transfer fluid at a first location, transmitting the heat from said first location to a second location through use of said heat transfer fluid, and passing said heat from said heat transfer fluid to a second heat conductor at said second location, the improvement characterized by using a heat transfer fluid comprising an effective amount of a compound having the formula: ##STR11## wherein n is an integer from 0 to 300; R is hydrogen, alkyl, alkenyl, aryl, aralkyl or --OSi(OR').sub.3 ; each R' is independently selected from alkyl, alkenyl, aryl or aralkyl with the proviso that at least a majority of R' radicals 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, aralkyl, and hydroalkyl. 12. The method of claim 11 wherein at least a majority of the R' groups are sterically hindered alkyl groups having about 3 to about 24 carbon atoms. 13. The method of claim 12 wherein the R' groups are sterically hindered alkyl groups having about 4 to about 12 carbon atoms. 14. The method of claim 11 wherein n is an integer from 0 to 5. 15. The method of claim 14 wherein n is an integer from 0 to 3. 16. The method of claim 11 wherein R is hydrogen, alkyl or alkenyl having about 1 to about 18 carbon atoms or aryl or aralkyl having about 6 to about 24 carbon atoms, and each R' is independently selected from alkyl or alkenyl having about 1 to about 24 carbon atoms or aryl or aralkyl having about 6 to about 24 carbon atoms, subject to the proviso that at least a majority of the R' groups are sterically hindered alkyl groups having about 3 to about 24 carbon atoms. 17. The method of claim 16 wherein R is hydrogen, alkyl or alkenyl having about 1 to about 8 carbon atoms or aryl or aralkyl having about 6 to about 14 carbon atoms, and each R' is independently selected from alkyl or alkenyl having about 1 to about 12 carbon atoms or aryl or aralkyl having about 6 to about 14 carbon atoms, subject to the proviso that at least a majority of the R' groups are sterically hindered alkyl groups having about 4 to about 12 carbon atoms. 18. The method of claim 11 wherein R" and R'" are independently selected from lower alkyl and alkenyl of about 1 to about 4 carbon atoms. 19. The method of claim 17 wherein R" and R'" are independently selected from lower alkyl and alkenyl of about 1 to about 4 carbon atoms, and n is an integer from 0 to 5, and the R' groups are all sterically hindered alkyl groups of about 4 to about 12 carbon atoms. 20. The method of claim 11 wherein R is methyl, R' is sec-butyl, R" and R'" are selected from hydrogen, methyl, ethenyl and phenyl, and n is an integer from 0 to 3. Other info: Inventors: Knollmueller, Karl O. (Hamden, CT, US) Application Number: 822852 Filing Date: 1977-08-08 Publication_date: 1978-09-26 Assignee: Olin Corporation (New Haven, CT) Primary Class(es): 252/78.3 252/67 Other Classes: US Patent Ref:
Other Refs: Primary Examiner: Pitlick, Harris A. Assistant Examiner: Attorney: Feltovic; Robert J., O'Day; Thomas P. |
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