Hydrocarbon Soluble Titanium Compound Friction Modifier

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Solution Overview

Problem

Current lubricant additives, particularly those containing molybdenum, face challenges such as poor oil solubility, corrosion issues, color darkening, and high sulfur and phosphorus levels, which can reduce the effectiveness of pollution control devices in engines.

Innovation Solution

A lubricant composition incorporating a hydrocarbon soluble titanium compound, derived from titanium alkoxide and C6 to C25 carboxylic acid, which is sulfur and phosphorus-free, combined with an organomolybdenum and glycerol ester friction modifier, to reduce friction coefficients while meeting stringent emission standards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If molybdenum additives are used to reduce friction, then friction modification is improved, but sulfur and phosphorus levels increase which reduces pollution control device effectiveness

Engineering Contradiction:

Improvefriction modificationVSAvoidsulfur and phosphorus emissions

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters by replacing molybdenum-based friction modifiers with titanium-based compounds, specifically using titanium alkoxides reacted with carboxylic acids to form soluble titanium soaps that provide friction modification without sulfur and phosphorus

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs readily available titanium alkoxides and common carboxylic acids to create a friction modifier that achieves the desired effect without requiring complex or expensive alternative compounds, making the solution economically viable

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Reliability

If molybdenum additives are used for friction reduction, then friction modification is improved, but oil solubility deteriorates

Engineering Contradiction:

Improvefriction modificationVSAvoidoil solubility

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent changes the chemical structure parameters by selecting specific carboxylic acids with appropriate chain lengths and functionalities that ensure optimal solubility in lubricating oils while maintaining effective friction modification properties

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite chemical structure by reacting titanium alkoxides with carboxylic acids to form titanium soaps that combine the friction modification capabilities of molybdenum compounds with the solubility characteristics of organic esters

Inventive Principle:

Principle #40Composite materials

3Reliability

If molybdenum additives are used for friction reduction, then friction modification is improved, but corrosion resistance deteriorates

Engineering Contradiction:

Improvefriction modificationVSAvoidcopper and lead corrosion

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent uses inexpensive titanium alkoxides and carboxylic acids that naturally provide corrosion protection without requiring additional corrosion inhibitor additives, simplifying the formulation

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The titanium compound serves multiple functions simultaneously: it provides friction modification like molybdenum compounds while also offering corrosion protection, eliminating the need for separate corrosion inhibitor additives

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If molybdenum additives are used for friction reduction, then friction modification is improved, but lubricant color darkening increases

Engineering Contradiction:

Improvefriction modificationVSAvoidlubricant color

Core Design Contradiction:

ReliabilityVSIllumination intensity

Solution Approach 1:

The patent employs simple titanium alkoxide and carboxylic acid reactants that produce a light-colored titanium soap product, avoiding the use of complex precursors that might cause darkening

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The composition effectively reduces friction coefficients and minimizes sulfur and phosphorus levels, ensuring compatibility with pollution control devices and maintaining engine performance without adverse effects on oil solubility or corrosion.

Implementation Method 1

a lubricant composition containing a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble titanium compound effective to provide a reduction in the coefficient of friction

Methodology Applied

Scientific EffectBoundary lubrication: Lubrication

Data Source

PatentEP1788067B1Lubricant formulations for providing friction modification

Publication Date: 2016.05.04 AFTON CHEMICAL CORPORATION

AI summary

Lubricated surfaces, lubricant compositions for lubricating a surface, and methods for reducing friction coefficients in lubricants. The lubricated surface is provided by a lubricant composition containing a base oil of lubricating viscosity and an amount of at least one hydrocarbon soluble titanium compound effective to provide a reduction in the coefficient of friction of the lubricant composition greater than a reduction in the coefficient of friction of the lubricant composition devoid of the hydrocarbon soluble titanium compound.