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Lubricating oil additive composition and method for producing the same

A technology of lubricating oil additive and lubricating oil composition, applied in lubricating composition, additive, petroleum industry, etc., can solve the problems of filter clogging, sludge accumulation, oil thickening and so on

Inactive Publication Date: 2011-11-30
CHEVRON ORONITE CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Failure to have sufficient particulate matter dispersibility can lead to filter clogging, sludge buildup and oil thickening

Method used

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  • Lubricating oil additive composition and method for producing the same
  • Lubricating oil additive composition and method for producing the same
  • Lubricating oil additive composition and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] Monosuccinimide derived from 1000MW PIBSA and diethylenetriamine

[0147] (Amine: PIBSA charging molar ratio is 0.90:1)

[0148] A 1 L reactor was charged with 549.94 g of 1000 MW PIBSA (available from Chevron Oronite, LLC) and 263 g of Chevron RLOP 100N base oil. A distillation head equipped with a condenser and a 250 mL round bottom flask was connected to the 1 L reactor. The system was placed under nitrogen atmosphere and the mixture was heated to 160 °C. Diethylenetriamine (41.80 g; available from Sigma-Aldrich) was then added to the mixture over a period of 30 minutes. The mixture was heated at 160°C for an additional 90 minutes. Vacuum was then applied at <0 mmHg for 30 minutes. The product has the following properties:

[0149] TBN=31.2mg KOH / g

[0150] Nitrogen = 1.85% by weight

Embodiment 2

[0152] Phthalic anhydride post-treated monosuccinimide derived from 1000MW PIBSA and DETA

[0153] (phthalic anhydride: PIBSA charging molar ratio is 0.80:1)

[0154] The product of Example 1 was heated to 160°C in an apparatus as described for Example 1 under a nitrogen atmosphere. Phthalic anhydride (53.25 g; available from Sigma-Aldrich) was added over the course of 15 minutes. The reaction mixture was heated at 160°C for an additional 90 minutes. Vacuum was then applied at < 0 mm Hg for 30 minutes. The product has the following properties:

[0155] TBN=16.5mg KOH / g

[0156] Nitrogen = 1.85% by weight

Embodiment 3

[0158] Monosuccinimides derived from 1000MW PIBSA and heavy polyamines

[0159] (Amine: PIBSA charging molar ratio is 0.90:1)

[0160] A 2L reactor was charged with 1030.1 g of 1000 MW PIBSA and 321.3 g of Chevron RLOP 100N base oil and placed under nitrogen atmosphere. The mixture was heated to 160°C. Heavy polyamine (208.33 g) was then added to the mixture over a period of 20 minutes. The mixture was heated at 160°C for an additional 90 minutes. Vacuum was then applied at 10 mm Hg for 30 minutes. The product has the following properties:

[0161] TBN=125.3mg KOH / g

[0162] Nitrogen = 4.58% by weight

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PUM

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Abstract

An oil-soluble lubricating oil additive composition comprising reacting succinimide, succinamide, or a mixture thereof with a first aftertreatment agent to produce an initial aftertreatment product, and combining the initial aftertreatment product with a second aftertreatment The preparation is carried out by the reaction method of two post-treatment agents.

Description

field of invention [0001] The present invention relates to improved dispersant additive compositions for use in motor oils; and the present invention also relates to methods of making said dispersant additive compositions. Background of the invention [0002] The use of nitrogen-containing dispersants and / or detergents in the formulation of lubricating oil compositions is known. Many known dispersant / detergent compounds are based on the reaction of alkenyl succinic acids or anhydrides with amines or polyamines to produce alkenyl succinimides or alkenyl succinamic acids, depending on the chosen reaction conditions . One problem faced by lubricant manufacturers is the dispersion of particulate matter within internal combustion engines. Failure to have sufficient particulate matter dispersibility can lead to filter clogging, sludge buildup and oil thickening. [0003] Combinations of certain aromatic anhydrides and ethylene post-treated dispersants have been found to provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M133/16C10M133/56C07D207/40C10N30/04C10N40/25
CPCC10M2207/142C10N2230/70C10N2230/52C10N2260/06C10M2203/1006C10M133/56C10N2240/102C10N2230/041C10M2223/045C10M2215/28C10M2207/028C10N2220/021C10N2020/04C10N2060/06C10N2030/041C10N2030/52C10N2030/70C10N2040/252C10N2010/04C10N2060/00
Inventor W·R·小鲁赫
Owner CHEVRON ORONITE CO LLC