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Infineum International Limited

一种润滑油组合物、添加剂包的技术，应用在润滑组合物、添加剂、发动机的润滑等方向，能够解决稳定性问题等问题

Pending Publication Date: 2017-12-12
INFINEUM INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, additive packages that include monoglyceride friction modifiers, such as glyceryl monooleate, have stability issues when overbased detergents, such as overbased calcium salicylate detergents, are also present

Method used

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  • Infineum International Limited
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0164] Block Copolymer 1 (0.5%) was blended into an oil of lubricating viscosity consisting of YUBASE 4 (59.9%) and YUBASE 6 (18.91%), a viscosity modifier (9.60%), and an oil containing overbased alkyl salicyl Calcium acid detergent, dispersant, antiwear agent, antioxidant and antifoam additive package (11.09%).

Embodiment 2

[0166] Blending Block Copolymer 1 (0.25%) and Solvent Neutral 100 Group I base oil (0.25%) into an oil of lubricating viscosity consisting of YUBASE 4 (59.9%) and YUBASE 6 (18.91%), viscosity modified agent (9.60%) and additive package (11.09%) including overbased calcium alkyl salicylate detergent, dispersant, antiwear agent, antioxidant and antifoaming agent.

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PUM

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Abstract

An additive package is disclosed for preparing an automotive crankcase lubricating oil composition for an internal combustion engine. The additive package is made by admixing: (i) 50 mass % or less of an oil of lubricating viscosity; (ii) 50 mass % or less of at least one overbased metal detergent, preferably at least one overbased metal hydroxybenzoate detergent; (iii) 50 mass % or less of an oil-soluble block or graft co-polymer of at to least one polymeric block A which is derived from a hydroxycarboxylic acid and at least one polyalkylene block B which is a residue of a polyalkylene glycol, and (iv) optionally, at least one further additive selected from a dispersant, an antioxidant and / or an antiwear agent. The additive package includes less than 2.00 mass % preferably less than 1.50 mass %, of a friction modifier which is a monoester of a C5 to C30 carboxylic acid and which is free of nitrogen. Component (ii) is preferably an overbased metal hydroxybenzoate detergent. Component (iii) acts as a friction modifier and can be used as a replacement for a friction modifier such as glycerol monooleate. The additive package exhibits improved stability.

Description

technical field [0001] The present invention relates to additive packages and lubricating oil compositions made therefrom. Lubricating oil compositions, more particularly automotive lubricating oil compositions for crankcase lubrication of piston engines, especially gasoline (spark ignition) and diesel (compression ignition), are known as crankcase lubricants. Background of the invention [0002] Crankcase lubricants are prepared from additive packages including, for example, detergents and friction modifiers. It is well known that there are stability problems between detergents and friction modifiers in additive packages, which can lead to, for example, deposits, haze or gels. This problem can be overcome by using two separate additive packages: one including the detergent and the other including the friction modifier. However, a single additive package is preferred. A stable additive package should result in a stable finished lubricating oil composition. [0003] Furth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10M167/00C10N30/04C10N30/06C10N40/25
CPCC10M161/00C10M167/00C10M2209/102C10M2209/109C10M2207/144C10N2020/02C10N2030/06C10N2030/04C10N2040/25C10M165/00C10M2209/112C10M2207/262C10M169/06C10M169/04C10N2040/252C10N2040/255C10N2020/04C10N2030/10C10N2030/12C10N2030/18C10N2030/52C10M129/44C10M129/54C10M129/70C10M137/10C10M145/28C10M2207/128C10M2207/281C10M2209/104C10M2223/045F01M9/02
Inventor A·J·斯特朗P·J·伍德沃德
Owner INFINEUM INT LTD