Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic phosphorus compound – wherein the phosphorus is...
Patent
1994-08-02
1996-09-03
Willis, Jr., Prince
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic phosphorus compound, wherein the phosphorus is...
508437, C10M13708
Patent
active
055520685
ABSTRACT:
A lubricant oil composition having balanced antiwear/extreme pressure and stability properties while providing friction reduction which comprises:
(1) a major amount of a lubricating oil basestock; and
(2) a minor amount of an amine phosphate salt of the formula: ##STR1## where R.sub.1 is C.sub.9 to C.sub.22, R.sub.2 and R.sub.3 are each independently C.sub.1 to C.sub.4 hydrocarbyl, R.sub.4 is c.sub.10 to c.sub.20 hydrocarbyl, and R.sub.5 is hydrogen to c.sub.10 to c.sub.20 hydrocarbyl; wherein the amine phosphate salt is soluble in the lubricant oil basestock at 25C, is a liquid at 25C, and the ratio of gram-atomic-equivalents of amine to phosphate in said salt is from about 1.0 to 1.2.
REFERENCES:
patent: 4645610 (1987-02-01), Born et al.
patent: 4701273 (1987-02-01), Brady et al.
patent: 4704216 (1987-11-01), Hata et al.
patent: 5094763 (1992-03-01), Tochigi et al.
Allocca Joseph J.
Exxon Research and Engineering Company
Takemoto James H.
Toomer Cephia D.
Willis Jr. Prince
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