Patent SG-11201407824W-A (SG)
Title: Method for improving nitrile seal compatibility with lubricating oils
Inventor: DECKMAN DOUGLAS EDWARD
IPC: C10N20/04
Filed: 2013-08-01
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 2014/025596 A1 (51) International Patent Classification: C10M107/02 (2006.01) C10N 20/04 (2006.01) C10N10/04 (2006.01) CI ON 40/04 (2006.01) C10N 20/02 (2006.01) C10N 40/25 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/053121 1 August 2013 (01.08.2013) English (30) Priority Data: 61/679,915 6 August 2012 (06.08.2012) English US (71) Applicant: EXXONMOBIL RESEARCH AND ENGIN­ EERING COMPANY [US/GB]; 1545 Route 22 East, P.O. Box 900, Annandale, NJ 08801-0900 (US). (72) Inventors: DECKMAN, Douglas, Edward; 5 Peachtree Lane, Mullica Hill, NJ 08062 (US). BAILLARGEON, David, Joseph; 112 Morningside Drive, Cherry Hill, NJ 08003 (US). JETTER, Steven, M.; 245 Hickory Corner Road, Hightstown, NJ 08520 (US). SHOUGH, Anne, M.; 414 Charles Arbors Lane, New Castle, DE 19720 (US). (74) Agents: SHANLEY, Matthew, T. 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)) V© 0\ CJ o o CJ o & (54) Title: METHOD FOR IMPROVING NITRILE SEAL COMPATIBILITY WITH LUBRICATING OILS (57) Abstract: Provided is a method of improving nitrile seal compatibility with lubricating a oil in an engine lubricated with the lubricating oil. The method includes using as the lubricating oil a formulated oil comprising lubricating a oil base stock as a major component and an alkylated aromatic base stock as minor a component. Nitrile seal compatibility improved is as compared to nitrile seal compatibility achieved using a lubricating oil containing a minor component other than the alkylated aromatic base stock, e.g., an ester. A lubricating engine oil comprising lubricating a oil base stock as a major component and an alkylated aromatic base stock as a minor component. The alkylated aromatic base stock is present in an amount sufficient for the lubricating oil to exhibit im­ proved nitrile seal compatibility as compared to nitrile seal compatibility achieved using a lubricating oil containing minor a com - ponent other than the alkylated aromatic base stock.