엔진 침착물에 대한 저항성을 갖는 윤활유 조성물

• Main Authors: GARELICK KENNETH, DEVLIN MARK, DVORAK TODD
• Format: Patent
• Language: Korean
• Published: 13.08.2024
• Subjects: CHEMISTRY; FUELS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

윤활유 조성물로서, 50 중량% 초과의 윤활 점도 기유(base oil), 및 a) 하나 이상의 아연 다이알킬 다이티오포스페이트(ZDDP 화합물)와 하나 이상의 분산제를 포함하는 첨가제로서, ZDDP 화합물에 의해 윤활유 조성물에 제공되는 아연(Zn)의 중량%에 윤활유 조성물의 총 염기 수(TBN)에 대한 분산제의 TBN의 기여도를 곱한 값인 곱셈 계수 Zn*TBNDisp가 약 0.06 이상인, 상기 첨가제; 또는 b) 하나 이상의 ZDDP 화합물과 하나 이상의 분산제를 포함하는 첨가제로서, ZDDP 화합물에 의해 윤활유 조성물에 제공되는 인(P)의 중량%에 윤활유 조성물의 총 염기 수(TBN)에 대한 분산제의 TBN의 기여도를 곱한 값인 곱셈 계수 P*TBNDisp가 약 0.051 이상인, 상기 첨가제를 포함하는, 윤활유 조성물. A lubricating oil composition comprising greater than 50 wt. % of a base oil of lubricating viscosity, and either: a) an additive composition comprising: one or more zinc dialkyl dithiophosphates (ZDDP compounds) and one or more dispersants, wherein the amount of zinc (Zn) in weight percent provided to the lubricating oil composition by the one or more ZDDP compounds multiplied by the contribution of the total base number (TBN) of the one or more dispersants to the TBN of the lubricating oil composition is a multiplication factor Zn*TBNDisp of at least about 0.06; or b) an additive composition comprising: one or more zinc dialkyl dithiophosphates (ZDDP compounds) and one or more dispersants, wherein the amount of phosphorus (P) in weight percent provided to the lubricating oil composition by the one or more ZDDP compounds multiplied by the contribution of the total base number (TBN) of the one or more dispersants to the TBN of the lubricating oil composition is a multiplication factor P*TBNDisp of at least about 0.051.