US 11,866,671 B2
Base oil or lubricant additive
George A. Kraus, Ames, IA (US); Kyle Podolak, Ames, IA (US); Derek Lee White, Lakewood, CO (US); and Sriram Sundararajan, Ames, IA (US)
Assigned to Iowa State University Research Foundation, Inc., Ames, IA (US)
Filed by Iowa State University Research Foundation, Inc., Ames, IA (US)
Filed on Nov. 23, 2022, as Appl. No. 18/058,635.
Application 18/058,635 is a division of application No. 17/380,766, filed on Jul. 20, 2021, granted, now 11,542,454.
Claims priority of provisional application 63/059,623, filed on Jul. 31, 2020.
Prior Publication US 2023/0167375 A1, Jun. 1, 2023
Int. Cl. C10M 129/70 (2006.01); C10M 169/04 (2006.01); C10N 30/06 (2006.01)
CPC C10M 129/70 (2013.01) [C10M 169/04 (2013.01); C10M 2203/003 (2013.01); C10M 2207/281 (2013.01); C10M 2207/284 (2013.01); C10N 2030/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A base oil or lubricant additive having the structure:

OG Complex Work Unit Chemistry
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—.