Succinic acid
Succinic acid
110-15-6
disodium succinate
Phthalocyanine pigment
Compound dyes
Compound green
Composite blue
Succinic acid(cas:110-15-6) esters and hydraulic fluids therefrom
Release time:2016/7/21 9:42:15

SUMMARY OF THE INVENTION
It is accordingly one object of the present invention to provide an aqueous based hydraulic fluid composition which is particularly suitable for use in hard water based systems and provides excellent stability in such systems.


A further object of the present invention is to provide a dispersant composition comprising the reaction product of an alkenyl succinic acid succinic anydride and a polyethoxylated alcohol and use of such dispersant compositions in aqueous based hydraulic fluids.


An even further object of the present invention is to provide novel esters which are made by the reaction of a hydrocarbyl succinic anhydride and succinic acid(cas:110-15-6) wherein the hydrocarbyl substituent contains unsaturation, with an excess of a polyethoxylated alcohol under such conditions that a high percentage of the anhydride reactant is converted to the corresponding diester, and the use of such reaction products as surface active agents or dispersants to stabilize high water content hydraulic fluids, particularly, when used in water of significant hardness.


Other objects and advantages of the present invention will become apparent as the description thereof proceeds.

In satisfaction of the foregoing objects and advantages, there is provided by the present invention ethoxylated esters of succinic acid(cas:110-15-6) succinic anhydride which are useful as dispersants and more particularly, ester reaction products of long chain hydrocarbyl substituted succinic anhydride with polyethoxylated alcohols and use of these compositions as dispersants or surface active agents.


The present invention also provides an aqueous based hydraulic fluid having characteristics making it particularly suitable for use in water of significant hardness, which composition comprises a dispersant which is an ester reaction product of a hydrocarbyl substituted succinic anhydride with an excess of a polyethoxylated alcohol, a surfactant, corrosion inhibitors and water.


Also provided by the present invention are methods for preparation of the novel dispersant and hydraulic fluid and methods for use of the aqueous based hydraulic fluid of this invention.


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