Neopolyol Synthetic Ester Lubricant for High-Temperature Food Processing
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Solution Overview
Problem
Current high-temperature lubricants used in food processing equipment degrade due to oxidative and thermal breakdown, leading to poor lubrication, increased maintenance, and safety concerns, as they are not food-grade approved.
Innovation Solution
A food-grade, high-temperature lubricant composition is developed using a polyol polyester base oil reaction product of neopentyl polyhydric alcohol and monocarboxylic acid, providing superior viscosity, oxidation resistance, and friction reduction, and meeting NSF International's H1 rating for safe food contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lubricants are used in food processing equipment at high temperatures, then lubrication is provided, but the lubricants degrade due to oxidative and thermal breakdown leading to poor lubrication, increased maintenance, and safety concerns
Solution Approach 1:
The patent changes the chemical composition parameters of the lubricant by using neopolyol synthetic esters with specific molecular structures (polyols with 3-12 carbon atoms and fatty acids with 6-22 carbon atoms) that provide superior oxidative and thermal stability at high temperatures up to 300°C, preventing degradation while maintaining lubrication effectiveness
Solution Approach 2:
The patent creates a composite lubricant formulation by combining neopolyol synthetic esters with specific additives including antioxidants, anti-wear agents, and extreme pressure agents, resulting in a composition that maintains stability and lubrication performance under high temperature conditions without degrading
2Stability of the object's composition
If neopolyol synthetic esters are used for high temperature performance, then thermal stability is improved, but food grade approval is not obtained
Solution Approach 1:
The patent modifies the chemical parameters of the synthetic ester by selecting specific polyols (with 3-12 carbon atoms and specific hydroxyl group configurations) and fatty acids (with 6-22 carbon atoms) that achieve both high thermal stability for industrial performance and compliance with FDA food additive regulations for food safety approval
3Temperature
If dry lubrication with graphite is used, then high temperature lubrication is achieved, but graphite builds up over time requiring significant cleaning time and lost production
Solution Approach 1:
The patent replaces the mechanical dry lubrication system (graphite particles) with a liquid lubrication system based on neopolyol synthetic esters that maintains effective lubrication at high temperatures without forming solid deposits, eliminating the need for frequent cleaning and reducing production loss
4Reliability
If conventional lubricants are used, then lubrication is provided, but evaporation causes changes in viscosity, oil loss, and excessive smoke production
Solution Approach 1:
The patent changes the molecular weight and chemical structure parameters of the lubricant base oil by using neopolyol synthetic esters with higher molecular weights and more stable chemical bonds, which significantly reduce evaporation rates, maintain consistent viscosity at high temperatures, and prevent oil loss while minimizing smoke production
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 lubricant composition maintains stability at temperatures up to 300°C, reducing maintenance and ensuring food safety by preventing degradation and deposit formation, thus enhancing the operational efficiency and cleanliness of food processing equipment.
Implementation Method 1
The lubricant composition maintains stability at temperatures up to 300°C, reducing maintenance and ensuring food safety by preventing degradation and deposit formation
Implementation Method 2
Lubricants that can maintain their structure under extremes of temperature are useful and essential in many commercial, domestic and industrial food processing applications
Implementation Method 3
Lubricants are necessary for moving parts in food processing equipment, including those subject to high temperatures. To provide adequate lubrication throughout the processes, a liquid film of lubricant must remain between metal parts in rubbing, sliding or rolling contact
Implementation Method 4
Therefore, the lubricant cannot evaporate or solidify at the peak processing temperature
Data Source
AI summary
Methods of lubricating food processing equipment that include applying a food grade, high temperature lubricant composition to the food processing equipment are described. The composition includes a polyol polyester base oil that is a reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid. Also described are methods of preparing a food grade, high temperature composition comprising reacting at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid. The composition may be a lubricant composition. Additionally, the invention provides a food grade, high temperature lubricant composition comprising a polyol polyester base oil that is a reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid.