Neutral Phosphorus Anti-Wear Additives for Seal and Oxidative Stability
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Solution Overview
Problem
Traditional anti-wear components in lubricating compositions, which contain acidic organophosphates salted with amines and/or metal ions, suffer from poor seal durability, reduced oxidative stability, and inadequate corrosion inhibition, and are environmentally undesirable due to the presence of amines and metal ions, necessitating the development of novel anti-wear compounds without these substances.
Innovation Solution
Development of novel phosphate and thiophosphate compounds of specific formulas, which are used as anti-wear agents in lubricant compositions, these compounds are designed to provide effective anti-wear protection without amines or metal ions, thereby improving seal durability and oxidative stability while reducing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional anti-wear components containing acidic organophosphates salted with amines and metal ions are used, then good anti-wear protection is provided, but seal durability deteriorates and oxidative stability is reduced
Solution Approach 1:
The patent removes amines and metal ions from the anti-wear additive composition, extracting the harmful components while retaining the essential phosphorus-containing anti-wear functionality. This is achieved by using neutral phosphorus-containing compounds instead of acidic organophosphates that require amine or metal ion salts, thereby improving seal durability while maintaining anti-wear protection.
Solution Approach 2:
The patent changes the chemical parameters of the anti-wear additive by transitioning from acidic organophosphates to neutral phosphorus-containing compounds. This parameter change eliminates the need for amine and metal ion salts, resolving the contradiction between anti-wear effectiveness and seal compatibility.
2Reliability
If traditional anti-wear components containing acidic organophosphates salted with amines and metal ions are used, then good anti-wear protection is provided, but oxidative stability is reduced
Solution Approach 1:
The patent extracts amines and metal ions from the composition, eliminating the sources of oxidative degradation while preserving the anti-wear functionality through neutral phosphorus-containing compounds. This resolves the contradiction between anti-wear protection and oxidative stability.
Solution Approach 2:
The patent changes the acid-base parameter of the additive system from acidic to neutral, eliminating the need for amine salts and thereby improving oxidative stability while maintaining anti-wear performance through the phosphorus-containing active species.
3Reliability
If traditional anti-wear components containing amines and metal ions are used, then adequate corrosion inhibition is provided, but environmental harm increases
Solution Approach 1:
The patent removes amines and metal ions from the anti-wear additive, eliminating the environmentally harmful components while maintaining corrosion inhibition functionality through the neutral phosphorus-containing compound that forms protective films on metal surfaces without requiring amine or metal ion salts.
Solution Approach 2:
The patent changes the compositional parameters by eliminating amine and metal ion content, thereby reducing environmental impact while maintaining corrosion protection through the inherent properties of the neutral phosphorus-containing anti-wear agent.
4Reliability
If acidic organophosphates salted with amines and metal ions are used, then anti-wear protection is achieved, but the presence of amines and metal ions becomes increasingly undesirable due to environmental concerns
Solution Approach 1:
The patent extracts and eliminates amines and metal ions from the anti-wear additive system, removing the environmentally undesirable components while preserving the essential anti-wear functionality through neutral phosphorus-containing compounds that do not require amine or metal ion salts for their anti-wear mechanism.
Solution Approach 2:
The patent fundamentally changes the chemical parameter of the additive from acidic (requiring amine/metal ion salts) to neutral, thereby eliminating environmental concerns associated with amine and metal ion discharge while maintaining effective anti-wear protection through the phosphorus-containing active species.
Data Source
AI summary
The invention relates to phosphorous-containing compounds useful as antiwear additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, methods for making and using the same, including methods of lubricating machines and machine parts and methods of extending the useful life of elastomeric seal components of such machines.