Claims
- 1. A compound of the formula ##STR2## wherein R.sup.1 is a C.sub.10 hydrocarbyl group; each R.sup.2 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group; each R.sup.3 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group, or the R.sup.3 substituents are joined to form a C.sub.4 -C.sub.6 heteroring with the nitrogen atom; provided that the total number of carbon atoms in the R.sup.1, R.sup.2 and R.sup.3 substituents is from about 10 to about 36.
- 2. A compound according to claim 1 wherein the total number of carbon atoms in the R.sup.1, R.sup.2 and R.sup.3 substituents is from about 12 to about 24.
- 3. A compound according to claim 1 wherein each R.sup.2 is a C.sub.1 -C.sub.8 alkyl group.
- 4. A compound according to claim 1 wherein each R.sup.3 is hydrogen.
- 5. A compound according to claim 4 wherein each R.sup.2 is a C.sub.1 -C.sub.8 alkyl group.
- 6. A compound according to claim 5 wherein R.sup.1 is a C.sub.10 alkyl group and each R.sup.2 is an isopropyl group.
- 7. A lubricant additive composition comprising from about 10% to about 95% by weight of a lubricant additive carrier material and from about 5% to about 90% by weight of a compound of the formula ##STR3## wherein R.sup.1 is a C.sub.10 hydrocarbyl group; each R.sup.2 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group; each R.sup.3 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group, or the R.sup.3 substituents are joined to form a C.sub.4 -C.sub.6 heteroring with the nitrogen atom; provided that the total number of carbon atoms in the R.sup.1, R.sup.2 and R.sup.3 substituents is from about 10 to about 36.
- 8. A lubricant composition comprising a major amount of a base lubricating oil and from about 0.01% to about 2% by weight of a compound of the formula ##STR4## wherein R.sup.1 is a C.sub.10 hydrocarbyl group; each R.sup.2 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group; each R.sup.3 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group, or the R.sup.3 substituents are joined to form a C.sub.4 -C.sub.6 heteroring with the nitrogen atom; provided that the total number of carbon atoms in the R.sup.1, R.sup.2 and R.sup.3 substituents is from about 10 to about 36.
- 9. In a lubricant additive composition comprising from about 10% to about 95% by weight of a lubricant additive carrier material and from about 5% to about 80% by weight of a conventional lubricant additive, the improvement comprising the presence in the composition of from about 5% to about 90% by weight of a compound of the formula ##STR5## wherein R.sup.1 is a C.sub.10 hydrocarbyl group; each R.sup.2 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group; each R.sup.3 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group, or the R.sup.3 substituents are joined to form a C.sub.4 -C.sub.6 heteroring with the nitrogen atom; provided that the total number of carbon atoms in the R.sup.1, R.sup.2 and R.sup.3 substituents is from about 10 to about 36.
- 10. A lubricant additive composition according to claim 9 wherein the carrier mixture is a mineral or synthetic oil, or mixtures thereof.
- 11. A lubricant additive composition according to claim 10 wherein R.sup.1 is a C.sub.8 -C.sub.16 alkyl group, each R.sup.2 is a C.sub.1 -C.sub.8 alkyl group and each R.sup.3 is hydrogen.
- 12. In a lubricant composition comprising a major amount of a base lubricating oil and from about 0.01% to about 30% by weight of a conventional lubricant additive, the improvement comprising the presence in the composition of from about 0.01% to about 10% by weight of a compound of the formula ##STR6## wherein R.sup.1 is a C.sub.10 hydrocarbyl group; each R.sup.2 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group; each R.sup.3 is hydrogen or a C.sub.1 -C.sub.12 hydrocarbyl group, or the R.sup.3 substituents are joined to form a C.sub.4 -C.sub.6 heteroring with the nitrogen atom; provided that the total number of carbon atoms in the R.sup.1, R.sup.2 and R.sup.3 substituents is from about 10 to about 36.
- 13. A lubricant composition according to claim 12 wherein the base lubricating oil is a mineral or synthetic oil, or mixtures thereof.
- 14. A lubricant composition according to claim 13 wherein each R.sup.2 is a C.sub.1 -C.sub.8 alkyl group and each R.sup.3 is hydrogen.
- 15. A crankcase lubricant composition according to claim 14 comprising from about 80% to about 95% by weight of the mineral or synthetic base oil, or mixtures thereof, from about 5% to about 20% by weight of the additive and from about 0.1% to about 2% by weight of the compound.
Parent Case Info
This is a continuation of application Ser. No. 529,899, filed Sept. 6, 1983, which is a continuation of Ser. No. 335,315, Dec. 29, 1981, both abandoned.
US Referenced Citations (15)
Non-Patent Literature Citations (3)
Entry |
Hsu, S. M., "Antiwear and Lubricity Additives for Lubricants", NBS Spec. Publ., 1977, pp. 172-185. |
Rounds, Fred G., "Additive Interactions and Their Effect on the Performance of a Zinc Dialkyl Dithiophosphate", Asle, 1976. |
Smalheer, C. V., et al., "Lubricant Additives", 1967, pp. 1-11. |
Continuations (2)
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Number |
Date |
Country |
Parent |
529899 |
Sep 1983 |
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Parent |
335315 |
Dec 1981 |
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