Vapor lock resistant hydraulic fluids

A composition suitable for use as a hydraulic fluid comprises: (a) a lubricating oil preferably in an amount of from 20 to 80% by weight; (b) a minor amount of oil-soluble borate ester; (c) an amine which prevents deposition of oil-insoluble hydrolysis products of the borate ester; and optionally (d) an oil soluble orthoester of the formula: см. иллюстрацию в PDF-документе wherein R7, R8, R9 and R10 are specified groups.

Hydraulic fluids containing baron-silicon compounds

Hydraulic fluids containing novel compounds of the general formula см. иллюстрацию в PDF-документе wherein: (a) each R1 is a hydrocarbyl group, or a group of the formula: см. иллюстрацию в PDF-документе and each R1 may be the same as, or different from, any other group R1. (b) R2 is a group as defined for R1, or a group of the formula: --O(R5 O)n Si(R1)3 (iv) and each group R2 may be the same as, or different from, any other group R2. (c) each of R3 and R4 is independently a group of the formula: см. иллюстрацию в PDF-документе (d) R5 is an alkylene or an arylene group and each R5 may be the same as, or different from, any other group R5,5, (e) R6 is a hydrocarbyl group of hydrogens and each group R6 may be the same as, or different from, any other group R6,6, (f) n is zero or an integer and each n may be the same as, or different from, any other n.

Silane derivatives

Novel silane derivatives having the general formula: см. иллюстрацию в PDF-документе wherein: (A) R is a group of the formula R4 --(OR5)m --OR6 --; (b) each of R1 and R2 is independently alkyl, alkenyl, aryl, alkaryl or aralkyl, a group of the formula --OR3 or a group of the formula R4 --(OR5)m --OR6 --; (c) R3 is a group of the formula R4 --(OR5)m -- or a group of the formula: см. иллюстрацию в PDF-документе (D) R4 is alkyl, alkenyl, aryl, alkaryl or aralkyl; (E) R5 is alkylene; (f) R6 is alkylene; (g) m is zero or an integer; (h) each of R7 and R8 is independently alkyl, alkenyl, aryl, alkaryl or aralkyl, a group of the formula --OR9 or a group of the formula R4 --(OR5)m --OR6 --; and (i) R9 is a group of the formula R4 --(OR5)m --. Also disclosed are hydraulic fluids containing the novel compounds.

Boron-silicon compounds suitable for use as hydraulic fluids

Novel compounds of the general formula: см. иллюстрацию в PDF-документе wherein: (a) each R1 is a hydrocarbyl group, or a group of the formula: см. иллюстрацию в PDF-документе and each R1 may be the same as, or different from, any other group R1. (b) R2 is a group as defined for R1, or a group of the formula: --O(R5 O)n Si(R1)3 (iv) and each group R2 may be the same as, or different from, any other group R2. (c) each of R3 and R4 is independently a group of the formula: см. иллюстрацию в PDF-документе --(R5 O)n --R6 (vii) (d) R5 is an alkylene or an arylene group and each R5 may be the same as, or different from, any other group R5,5, (e) R6 is a hydrocarbyl group of hydrogen and each group R6 may be the same as, or different from, any other group R6,6, (f) n is zero or an integer and each n may be the same as, or different from, any other n. The compounds are useful as water scavengers, particularly for hydraulic fluids, as well as in paints, lubricating oils and electrical oils.

Hydraulic fluids

Oxysilane functional fluids

CANADA ABSTRACT OF THE DISCLOSURE "FUNCTIONAL FLUIDS " A functional fluid having particular application as hydraulic fluid, refrigerant oil, electrical oil or heat transfer fluid comprises a major amount of a hydrocarbon oil and a minor amount of an oxysilane compound having the general formula:- wherein:-Rl is alkyl, alkenyl, aryl, alkaryl, aralkyl oralicyclic; R2 and R3 are each independently a group as defined for Rl or a group of the formula - (oR5) - oR6; R4 is a group cf the formula - (OR )n - OR or a group of the formula:-

Hydraulic fluids containing baron-silicon compounds

Hydraulic fluids containing novel compounds of the general formula ##STR1## wherein: (a) each R 1 is a hydrocarbyl group, or a group of the formula: ##STR2## and each R 1 may be the same as, or different from, any other group R 1 . (b) R 2 is a group as defined for R 1 , or a group of the formula: --O(R.sup.5 O).sub.n Si(R.sup.1).sub.3 (iv) and each group R 2 may be the same as, or different from, any other group R 2 . (c) each of R 3 and R 4 is independently a group of the formula: ##STR3## (d) R 5 is an alkylene or an arylene group and each R 5 may be the same as, or different from, any other group R 5 , (e) R 6 is a hydrocarbyl group of hydrogens and each group R 6 may be the same as, or different from, any other group R 6 , (f) n is zero or an integer and each n may be the same as, or different from, any other n.

Hydraulic fluid comprising borate ester and orthoester and amine

" HYDRAULIC FLUIDS " ABSTRACT OF THE DISCLOSURE A composition suitable for use as a hydraulic fluid comprises: (a) a lubricating oil preferably in an amount of from 20 to 80% by weight; (b) a minor amount of oil-soluble borate ester; (c) an amine which prevents deposition of oil-insoluble hydrolysis products of the borate ester; and optionally (d) an oil soluble orthoester of the formula: