Patent SG-11201809496W-A (SG)
Title: Lubricant compositions for reducing timing chain stretch
Inventor: Fletcher Kristin
IPC: C10M161/00
Filed: 2017-02-28
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1111111111111 01111111111111111111111111 0 1111111111110111101111101111111111111 011111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\"\" WO 2017/192202 Al 09 November 2017 (09.11.2017) W I P0 I P C T (51) International Patent Classification: C/OM 141/10 (2006.01) C/OM 161/00 (2006.01) Published: — with international search report (Art. 21(3)) (21) International Application Number: PCT/US2017/019892 (22) International Filing Date: 28 February 2017 (28.02.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/147,211 05 May 2016 (05.05.2016) US (71) Applicant: AFTON CHEMICAL CORPORAION [US/US]; 500 Spring Street, Richmond, VA 32319 (US). (72) Inventors: FLETCHER, Kristin; 2616 Cradle Hill Court, Midlothian, VA 23112 (US). LAM, William Y.; P.O. Box 2311, Glen Allen, VA 23058 (US). _ (74) Agent: DUNLEAVY, Kevin J.; Mendelsohn Dunleavy, P.C., 1500 John F. Kennedy Blvd., Suite 312, Philadelphia, PA 19102 (US). — = Designated States (unless otherwise indicated, for every (81) 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, 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. = = = 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, — (84) = = _ _ 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). = 1-1 ..! (54) Title: LUBRICANT COMPOSITIONS FOR REDUCING TIMING CHAIN STRETCH ei (57) : A method for reducing timing chain stretch in an engine comprising a step of lubricating said timing chain with a 0 el lubricating oil composition that includes a major amount of a base oil; and a minor amount of an additive package including (a) at ei least one overbased calcium detergent, (b) at least one borated dispersant, (c) a metal dialkyl dithiophosphate, and (d) at least one ON molybdenum compound. The lubricating oil composition has a TBN value of at least 7.5 mg KOH/g of the lubricating oil composition, 1-1 --.... at least 80 ppm of molybdenum, based on the total weight of the lubricating oil composition, a weight ratio of total calcium in the Ir ----- lubricating oil composition to total molybdenum in the lubricating oil composition of less than 8.4; and a weight ratio of nitrogen from 1-1 C the dispersant in the lubricating composition to total boron in the lubricating oil composition of from 2.6 to 3.0. ei C