Lubricants with improved oxidation and deposit control performance

• Main Authors: KANGA, PASI, R, YEH LISA I, HENDERSON CAMDEN N
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• 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

A method of making an anti-deposition fluid includes combining a base stock with one or more additives to form a blended fluid configured to resist formation of deposits in an oxidizing environment. The base stock has a viscosity index of at least 80, and a kinematic viscosity of at least 320 cSt at 40 DEG C or a kinematic viscosity of at least 14 cSt at 100 DEG C. The base stock includes greater than or equal to about 90% by weight of saturated compounds, less than or equal to about 10% by weight of aromatic compounds, and a total of at least 1.7 terminal/pendant propyl groups and terminal/pendant ethyl groups per 100 carbon atoms. 本发明公开了一种制造抗沉积流体的方法，所述方法包括：将基础油料与一种或多种添加剂合并以形成经配置以抵抗在氧化环境中形成沉积物的共混流体。所述基础油料具有至少80的粘度指数，以及在40℃下至少320cSt的运动粘度或在100℃下至少14cSt的运动粘度。所述基础油料包含大于或等于约90重量％的饱和化合物、小于或等于约10重量％的芳族化合物以及每100个碳原子总共至少1.7个的端基/侧基丙基基团和端基/侧基乙基基团。