Patent SG-11201906450T-A (SG)
Title: Lubricants with calcium-containing detergents and their use for improving low-speed pre-ignition
Inventor: CARPENTIER GUILLAUME
IPC: C10N10/04
Filed: 2017-11-09
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 26 July 2018 (26.07.2018) WIPO I PCT omit °nolo mom oimIE (10) International Publication Number WO 2018/136136 Al (51) International Patent Classification: Cl OM 159/20 (2006.01) ClON 40/25 (2006.01) ClON 30/00 (2006.01) ClON 10/04 (2006.01) (21) International Application Number: PCT/US2017/060956 (22) International Filing Date: 09 November 2017 (09.11.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/409,503 18 January 2017 (18.01.2017) US (71) Applicant: AFTON CHEMICAL CORPORATION [US/US]; 500 Spring Street, Richmond, Virginia 23219 (US). (72) Inventors: CARPENTIER, Guillaume; 1 Wyvern Close, Bracknell Berkshire RG12 (GB). RANSOM, Paul; 1 Clough Hey, Manchester Road, Marsden Huddersfield HD76DW (GB). FLETCHER, Kristin; 2616 Cradle Hill Court, Midlothian, Virginia 23112 (US). (74) Agent: DUNLEAVY, Kevin J.; Mendelsohn Dunleavy, P.C., 1500 John F. Kennedy Blvd., Suite 312, Philadelphia, Pennsylvania 19102 (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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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, ST, 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)) 1-1 00 (54) Title: LUBRICANTS WITH CALCIUM-CONTAINING DETERGENTS AND THEIR USE FOR IMPROVING LOW-SPEED PRE-IGNITION (57) : A lubricating oil composition and method of operating a boosted internal combustion engine. The lubricating oil com- position includes greater than 50 wt.% of a base oil, one or more overbased calcium sulfonate detergent(s) and one or more overbased calcium phenate detergent(s). The calcium, boron, nitrogen, and amount of soap are maintained within certain ratios, and the total base number contribution from all detergents to the lubricating oil composition is less than 4.2 mg KOH/g of the lubricating oil composition, as measured by the method of ASTM D-2896. The lubricating oil composition and method may be effective to reduce low-speed pre- ignition events in a boosted internal combustion engine lubricated with the lubricating oil composition relative to capable lubricating oil compositions.