Hydrocarbonoxy-containing silicone fluids useful as hydraulic fl

Details Hydrocarbonoxy-containing silicone fluids useful as hydraulic fl Hydrocarbonoxy-containing silicone fluids useful as hydraulic fl

1976-07-30

1977-11-01

Pitlick, Harris A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252 783, C10M 346, C10M 344

Patent

active

040565467

ABSTRACT:
A silicone polymer fluid useful as a brake fluid comprising a polymer or monomer having 0 to 100 mole percent of polymeric or monomeric units selected from R.sub.2 Si(OM).sub.2 units, ##STR1## AND R.sub.2 SiO units, 0 to 100 mole percent of polymeric and monomeric units selected from RSi(OM).sub.3 units, ##STR2## AND RSiO.sub.3/2 units, 0 to 10 mole percent of units selected from the class consisting of (MO).sub.3 SiO.sub.1/2 units, (MO).sub.2 SiO units, (MO)SiO.sub.3/2 units and SiO.sub.2 units and 0 to 5 mole percent of units selected from R.sub.3 SiO.sub.1/2 units wherein the viscosity of the polymer may vary from 2 to 400 centistokes at 25.degree. R is a monovalent hydrocarbon radical, M is selected from alkyl, alkoxy, alkylene, alkoxyalkyleneoxyalkylene and alkyl polyether substituent radicals, wherein the preferred substituent for M is 2-methoxy-2-ethoxy-ethylene or higher and R is preferably methyl.

REFERENCES:
patent: 3821114 (1974-06-01), Brown
patent: 3984449 (1976-10-01), Brown

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