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US 11,866,671 B2Granted
Base oil or lubricant additive
AssigneeIowa State University Research Foundation, Inc.
InventorsGeorge A. Kraus, Kyle Podolak, Derek Lee White, Sriram Sundararajan
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Abstract
The present invention is toward a base oil or lubricant additives, methods of using the same, lubricant compositions including the same, and methods of forming the lubricant compositions. A base oil or lubricant additive has Structure I or Structure II as described herein.
Claims20
A base oil or lubricant additive having the structure:
- wherein
- R1, R2, R3, and R4 are independently chosen from —H, —(C1-C5)hydrocarbyl and —Rb,
- the base oil or lubricant additive comprises at least one Rb,
- at each occurrence, Rb is independently chosen from —C(O)—O—Rc, —O—Rc, —S—Rc, and —NH—Rc, and
- at each occurrence, Rc is independently (C6-C30)hydrocarbyl that is unsubstituted or substituted with —O—(C6-20)aryl, wherein the (C6-C30)hydrocarbyl is interrupted by 0, 1, 2, 3, 4, or 5 groups independently chosen from —O— and —S—.
2 more elements
A method of lubricating comprising:
- applying a base oil or lubricant additive, or a lubricant composition comprising the same, to an apparatus to lubricate the apparatus, wherein the base oil or lubricant additive has the structure:
- wherein
- R1, R2, R3, and R4 are independently chosen from —H, —(C1-C5)hydrocarbyl and —Rb,
- the base oil or lubricant additive comprises at least one Rb,
- at each occurrence, Rb is independently chosen from —C(O)—O—Rc, —O—Rc, —S—Rc, and —NH—Rc, and
- at each occurrence, Rc is independently (C6-C30)hydrocarbyl that is unsubstituted or substituted with —O—(C6-20)aryl, wherein the (C6-C30)hydrocarbyl is interrupted by 0, 1, 2, 3, 4, or 5 groups independently chosen from —O— and —S—.
3 more elements
Dependencies are inferred from the claim text.