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US 4,360,443 AGranted
Storage fire resistant hydraulic fluid
AssigneeConoco Inc.
InventorAlbert M. Durr, Jr.
Life of this patent
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AssigneeConoco Inc.
InventorAlbert M. Durr, Jr.
Estimating the term…
A static storage stable fire resistant hydraulic fluid composition is provided which comprises (a) from about 40 to about 50 volume percent water together with (b) from about 50 to about 60 volume percent of a combination of (1) a lubricating oil (2) an emulsifier system containing succinic esters of hydrocarbon substituted succinic acid, polyhydric alcohols and alkaline earth salts of a fatty acid, and (3) at least one material selected from the group consisting of polyoxyethylene derivatives of alcohols and acids. Most preferred materials are the ether derivatives of polyoxyethylene containing from 10 to 20 oxyethylene units formed from 10 to 20 saturated carbon atom normal alcohols. The most preferred material is the ether derivative of a polyoxyethylene containing 10 oxyethylene units formed from stearyl alcohol.
A composition for forming an oil in water emulsion consisting essentially of from about 0.2 to about 10 parts of a succinic ester of a hydrocarbon substituted succinic acid having at least about 50 aliphatic carbon atoms in the substituent, a polyhydric alcohol from about 0.1 to 5 parts of an alkaline earth metal salt of a fatty acid having at least about 12 aliphatic carbon atoms in the fatty radical and from about 0.1 to about 5.00 parts of at least one material selected from the group consisting of polyoxyethylene ethers containing from 8 to 14 oxyethylene units derived from saturated and unsaturated normal alcohols containing from 10 to 20 carbon atoms and organic acids containing from 6 to 22 carbon atoms when adducted with from 8 to 14 oxyethylene units.
a stable water and oil emulsion suitable for use as a lubricant and a flame resistant hydraulic fluid consisting essentially of from about 1 to about 80 parts of water, from about 20 to about 99 parts of mineral oil, from about 0.2 to about 10 parts of a succinic ester of a hydrocarbon substituted succinic acid having at least about 50 aliphatic carbon atoms in the substituent, polyhydric alcohol from about 0.1 to 5 parts of an alkaline earth metal salt of a fatty acid having at least about 12 aliphatic carbon atoms in the fatty radical and from about 0.25 to about 1.00 parts of at least one material selected from the group consisting of polyoxyethylene ethers containing from 8 to 14 oxyethylene units derived from saturated and unsaturated normal alcohols containing from 10 to 20 carbon atoms and organic acids containing from 6 to 22 carbon atoms when adducted with from 8 to 14 oxyethylene units.
A stable water and oil emulsion consisting essentially of from about 20 to about 50 parts of water, from about 50 to about 80 parts of a mineral oil, from about 1 to about 5 parts of a succinic ester of a hydrocarbon substituted succinic acid having at least about 50 aliphatic carbon atoms in the substituent, a partially acylated polyhydric alcohol from about 0.1 to about 5 parts of an alkaline salt of a fatty acid having at least about 12 aliphatic carbon atoms in a fatty radical and having a metal ratio of from about 1 to about 20 and from about 0.1 to about 5.00 parts of at least one material selected from the group consisting of polyoxyethylene ethers containing from 8 to 14 oxyethylene units derived from saturated and unsaturated normal alcohols containing from 10 to 20 carbon atoms organic acids containing from 6 to 22 carbon atoms when adducted with from 4 to 14 oxyethylene units.
Dependencies are inferred from the claim text.