Phosphono paraffins
AssigneeThe Boeing Company
InventorsMathew John Ballard, Philip Stephen Casey, Susan Wan-Yi Holmes, Cameron David Way
Life of this patent
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Abstract
Aspects described herein generally relate to methods of making a phosphono paraffin comprising forming a reaction mixture by mixing a haloparaffin, a phosphite, and sodium iodide. Methods comprise heating the reaction mixture to form the phosphono paraffin. Aspects described herein further relate to a phosphono paraffin represented by formula (I): wherein each instance of R1 is independently —H or wherein each instance of R2 and R3 is independently linear or branched C1-20 alkyl, C1-20 cycloalkyl, or aryl; the number of instances where R1 is of formula (I) is between about 2 and about 8; and n is an integer between 4 and 22.
Claims20
A method of making a hydraulic fluid, comprising:
- mixing components of a hydraulic fluid composition, wherein the components of the hydraulic fluid are comprised of:
- a phosphono paraffin represented by formula (I):
- wherein:
- each instance of R1 is independently —H or
- each instance of R2 and R3 is independently C1-20 alkyl, cycloalkyl of C20 or less, or aryl;
- n is an integer of 4 to 22;
- and
- the number of instances where R1 is
- of formula (I) is about 2 to about 8,
- a phosphate,
- an epoxide modifier, and
- an additive.
A method of making a hydraulic fluid, comprising:
- mixing components of a hydraulic fluid composition, wherein the components of the hydraulic fluid are comprised of:
- a phosphono paraffin represented by formula (II):
- wherein:
- each instance of R1 is independently —H or
- each instance of R2 and R3 is independently C1-20 alkyl, cycloalkyl of C20 or less, or aryl;
- n is an integer of 4 to 22;
- and
- the number of instances where R1 is
- of formula (I) is about 2 to about 8,
- a phosphonate,
- an ester, and
- an additive.
A method of making a hydraulic fluid comprising:
- mixing components of a hydraulic fluid composition, wherein the components of the hydraulic fluid are comprised of:
- a phosphono paraffin represented by formula (IV):
- wherein:
- each instance of R1 is independently —H or
- each instance of R2 and R3 is independently C1-20 alkyl, cycloalkyl of C20 or less, or aryl;
- n is an integer of 4 to 22;
- and
- the number of instances where R1 is
- of formula (I) is about 2 to about 8,
- a siloxane, and
- an additive.
Dependencies are inferred from the claim text.