Patent SG-11201407692S-A (SG)
Title: Method for improving nitrile seal compatibility with lubricating oils
Inventor: SHOUGH ANNE M
IPC: C10M139/02
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 2014/025525 A1 (51) International Patent Classification: C10M135/04 (2006.01) C10M139/02 (2006.01) C10M135/08 (2006.01) C10M129/42 (2006.01) C10M 135/36 (2006,01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/051602 23 July 2013 (23.07.2013) English (30) Priority Data: 61/679,894 6 August 2012 (06.08.2012) English US (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: SHOUGH, Anne, M.; 414 Charles Arbors Lane, New Castle, DE 19720 (US). BAILLARGEON, David, J.; 112 Morningside Drive, Cherry Hill, NJ 08003 (US). JETTER, Steven, M.; 245 Hickory Corner Road, Hightstown, NJ 08520 (US). DECKMAN, Douglas, Ed­ ward; 5 Peachtree Lane, Mullica Hill, NJ 08062 (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. (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)) CJ CJ o o CJ o & (54) Title: METHOD FOR IMPROVING NITRILE SEAL COMPATIBILITY WITH LUBRICATING OILS (57) Abstract: Provided are a lubricating engine oil and a method of improving nitrile seal compatibility with lubricating a oil in an engine lubricated with such lubricating oil. The method includes using as the lubricating oil a formulated oil comprising a lubricat­ ing oil base stock as a major component and one or more additives selected from the group consisting of (i) a sulfone, sulfolane, or derivative thereof; (ii) a borate ester, boron amide, or mixtures thereof; (iii) sulfurized olefin; a (iv) a thiadiazole or derivative there - of; and (v) a succinic anhydride or derivative thereof, as minor a component. Nitrile seal compatibility is improved as compared to nitrile seal compatibility achieved using a lubricating oil containing minor component other a than the one or more additives.