Patent SG-11201407691T-A (SG)
Title: Improved anti-wear performance of lubricants using carbon nanoplatelets
Inventor: HAQUE TABASSUMUL
IPC: C10M125/02
Filed: 2013-07-23
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 13 February 2014 (13.02.2014) WIPOIPCT (10) International Publication Number WO 2014/025523 A1 (51) International Patent Classification: C10M125/02 ( 2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/051592 23 July 2013 (23.07.2013) English English (30) Priority Data: 61/679,872 6 August 2012 (06.08.2012) (71) Applicant: EXXONMOBIL RESEARCH AND ENGIN EERING COMPANY [US/US]; 1545 Route 22 East. P.O. Box 900, Annandale, NJ 08801-0900 (US). (72) Inventors: HAQUE, Tabassumul; 186 Mary Court, Bridgewater, NJ 08807 (US). WEBSTER, Martin, N.; 5 Harbourton Ridge Drive, Pennington, NJ 08534 (US). TSOU, Andy, H.; 3381 Pheasant Hill Drive, Allentown, PA 18104 (US). (74) Agents: MIGLIORINI, Robert A. et al.; Exxonmobil Re­ search And Engineering Company, 1545 Route 22 East, P.O. Box 900, Annandale, NJ 08801-0900 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. Ug (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: IMPROVED ANTI-WEAR PERFORMANCE OF LUBRICANTS USING CARBON NANOPLATELETS 0.08 0.07 c <D 0.06 O 0.05 <D O o 0.04 c o 0.03 o b 0.02 Li. 0.01 0 CJ CJ o o CJ o & Study of Friction Performance on DLC Coating using Nanographene Platelets (NGP) in PAO — PA06 —PA06+NGP 50 100 150 Time (minutes) 200 250 (57) Abstract: Provided are a lubricating engine oil and method of improving a wear protection in an engine lubricated with such lubricating oil. The method includes using as the lubricating oil a formulated oil comprising lubricating a oil base stock as a major component, an antiwear additive as a first minor component, and carbon nanoplatelets as a second minor component. The carbon nanoplatelets are dispersed in said lubricating oil base stock. Wear protection improved is as compared to wear protection achieved using a lubricating oil not containing carbon nanoplatelets as a second minor component. A synergy exists between carbon nano - platelets and other major components of lubricants, especially with zinc dialkyldithiophosphate (ZDDP) or other phosphate antiwear additives, that helps to form nano-composite a wear resistant and low friction tribofilm both on ferrous and non-ferrous surfaces (e.g., carbon coatings, ceramic coatings, polymeric coatings, and the like) of engines/machines.