Abstract:
A HYDRAULIC FLUID CONTAINING AS THE BASE COMPONENT AT LEAST ONE ALKYL (POLYALKOXY) SILANE OF THE FORMULA:
(R(O-R'''')YO)ZSIR''4-Z
WHEREIN R IS AN ALKYL GROUP OF 1 TO 10 CARBON ATOMS OR AN ARYL GROUP OF 6 TO 10 CARBON ATOMS; R'' IS AN ALKYL GROUP OF 1 TO 4 CARBON ATOMS, R'''' IS ALKYLENE OF FROM 2 TO 4 CARBON ATOMS, Y IS AN INTEGER OF 1 TO 5 AND Z IS AN INTEGER OF 1 TO 3. ADDITIONALLY, THE HYDRAULIC FLUID OF THIS INVENTION MAY CONTAIN A BASE COMPONENT MADE UP OF A MIXTURE OF SELECTEE ALKYL (POLYALKOXY) SILANES, AS DEFINED ABOVE, AND SELECTED BORATE ESTERS.
Abstract:
A low water-sensitive hydraulic fluid composition which contains from about 20 to about 96 percent by weight of at least one borate ester as the base fluid. Such low-water sensitive hydraulic fluids are high boiling compositions particularly useful as brake fluids.
Abstract:
1. AN OXYGEN-SCAVENGING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF HYDRAZINE CONTAINING A CATALYTIC PROPORTION OF A MIXTURE OF (A) AN ARYL AMINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) AMINOPHENOL (2) N-ALKYL AMINOPHENOL WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO ABOUT 4 CARBON ATOMS (3) TOLUENE DIAMINE (4) PHENYLENE DIAMINE, AND (5) SULFATED OF SAID ARYL AMINE COMPOUND OF A (1)-A(4) (B) A QUINONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) QUINONE (2) NAPHTHOQUINONE (3) ANTHRAQUINONE, AND (4) HYDROXY SUBSTITUTED QUINONE OF B (1)-B(3) (C) WHEREIN THE WEIGHT RATIO OF SAID ARYL AMINE COMPOUND TO SAID QUINONE COMPOUND IS FROM ABOUT 10:1 TO ABOUT 300:1, AND (D) THE WEIGHT RATIO OF SAID HYDRAZINE TO SAID QUINONE COMPOUND IS FROM ABOUT 2000:1 TO ABOUT 10,000:1.
Abstract:
This invention relates to a low water-sensitive hydraulic fluid composition which contains from about 20 to about 96 percent by weight of at least one borate ester as the base fluid and additionally, from about 2 to about 40 percent of a bis (glycol ether) formal. Such low water-sensitive hydraulic fluids are high boiling compositions which also have desirable properties at low temperatures, particularly viscosity, and thus are useful under a wide variety of climatic and operational conditions.
Abstract:
Low water-sensitive hydraulic fluid compositions which contain at least one borate ester as the base fluid and from about 0.1 to about 8 percent by weight of monoethanolamine as an alkaline buffering agent. Such low water-sensitive hydraulic fluids are high boiling and have a low rate of corrosivity.