Claims
- 1. A lubricant composition comprising a major proportion of a lubricating oil or grease and a friction-reducing amount of a borated mixture of a hydrocarbyl vicinal diol, or mixtures thereof, and a hydroxyl-containing aliphatic carboxylate or mixture of said carboxylates.
- 2. The composition of claim 1 wherein the diol has the formula
- R(OH).sub.2
- wherein R is a hydrocarbyl group containing 10 to 30 carbon atoms.
- 3. The composition of claim 2 wherein the hydrocarbyl group is an alkyl group.
- 4. The composition of claim 3 wherein the alkyl group is a hexyl, decyl, dodecyl, tetradecyl, pentadecyl, octadecyl or mixed C.sub.15 -C.sub.18 alkyl group.
- 5. The composition of claim 1 wherein the carboxylate has the formula
- R.sup.I (COOR.sup.2)n
- wherein R.sup.I is an aliphatic or hydroxy aliphatic group containing 3 to 10 carbon atoms and R.sup.2 is an aliphatic or hydroxy aliphatic group containing 8 to 20 carbon atoms and n is 1 to 3, there being present in the carboxylate at least one hydroxy group.
- 6. The composition of claim 5 wherein the carboxylate is 1,2-dihydroxypropyl monooleate, sorbitan dioleate, mannitol dioleate, glycerol monooleate, glycerol dioleate, trimethylolpentane monooleate, trimethylolpentane dioleate, pentaerythritol monooleate, pentaerythritol dioleate or pentaerythritol trioleate.
- 7. The composition of claim 1 wherein the mixture for boration is borated with boric oxide or a compound of the formula
- (R.sup.4 O)xB(OH)y
- wherein R.sup.4 is a C.sub.1 to C.sub.6 alkyl group, x is 0 to 3 and y is 0 to 3 their sum being 3.
- 8. The composition of claim 1 wherein the mixture for boration is borated with boric acid.
- 9. The composition of claim 1 wherein the mixture for boration is a mixture of glycerol monooleate and 1,2-hexadecanediol and the borating agent is boric acid.
- 10. The composition of claim 1 wherein the lubricant is (1) a mineral lubricating oil, (2) a synthetic lubricating oil or a mixture of such oils, (3) a mixture of (1) and (2), or (4) a grease of any of these.
- 11. The composition of claim 10 wherein the lubricating oil is a mineral oil.
- 12. The composition of claim 10 wherein the lubricating oil is a synthetic oil.
- 13. The composition of claim 1 wherein the lubricant is a grease.
- 14. The composition of claim 1 wherein the lubricant is a mixture of mineral and synthetic oils.
Parent Case Info
This is a division of copending application Ser. No. 414,281, filed Sept. 3, 1982, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
2979459 |
Darling et al. |
Apr 1961 |
|
2989468 |
Darling et al. |
Jun 1961 |
|
4406802 |
Horodysky et al. |
Sep 1983 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
414281 |
Sep 1982 |
|