Self-Cleaning Coating Composition for Cooking Appliances
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Solution Overview
Problem
Current methods for cleaning cooking appliances, such as pyrolysis and highly alkaline chemical cleaners, pose safety hazards and require high temperatures, leading to inefficiencies and surface damage.
Innovation Solution
A composition comprising a reaction product of a metalloid alkali metal compound, a metal oxide or hydroxide catalyst, and an optional polymer, which forms a durable, self-cleaning coating that can withstand high temperatures and easily remove baked-on contaminants at lower temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If highly alkaline chemical cleaners are used, then baked-on food removal effectiveness is improved, but safety hazards increase due to caustic substances
Solution Approach 1:
The patent changes the chemical parameters of the cleaning composition by using alternative active ingredients (peracetic acid, hydrogen peroxide, organic peroxides) with different chemical properties than traditional alkaline cleaners. This maintains cleaning effectiveness while eliminating caustic hazards, directly resolving the contradiction between effectiveness and safety
Solution Approach 2:
The cleaning composition is designed as a single-use application that decomposes into safe byproducts (water, oxygen, acetic acid) after use. The active ingredients are consumed during the cleaning process, leaving no hazardous residue, thus providing effective cleaning without long-term safety hazards
2Object-affected harmful factors
If pyrolysis method is used, then safety hazards are reduced, but energy consumption increases due to high temperature requirements
Solution Approach 1:
The patent changes the temperature parameter from high-temperature pyrolysis (>500°C) to mild-temperature chemical cleaning (ambient to moderate temperatures). The chemical reaction parameters are optimized to achieve effective cleaning at much lower temperatures, reducing energy consumption while maintaining safety
Solution Approach 2:
The patent replaces the thermal-mechanical pyrolysis process with a chemical cleaning mechanism. Instead of using heat to carbonize and remove baked-on food, the composition uses chemical reactions (oxidation, decomposition) to break down and remove contaminants at lower temperatures
3Object-affected harmful factors
If pyrolysis method is used, then safety hazards are reduced, but coating durability worsens due to craze and flake off
Solution Approach 1:
The patent changes the temperature parameter from extreme high temperature pyrolysis to mild temperatures, preventing thermal stress that causes coating crazing and flaking. The coating is designed to withstand the cleaning process temperatures without degradation, maintaining integrity while ensuring safety
4Productivity
If frequent cleaning is avoided, then productivity is improved, but cleaning difficulty increases due to baked-on food buildup
Solution Approach 1:
The cleaning composition is formulated to work effectively on baked-on food that has been building up over time, without requiring frequent preventive cleaning. The strong chemical action (peracetic acid, hydrogen peroxide) breaks down even heavily baked-on residues in a single application, allowing extended periods between cleanings while maintaining ease of operation
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 allows for effective cleaning of cooking appliances at reduced temperatures, maintaining surface integrity and safety while avoiding the hazards of traditional methods.
Implementation Method 1
During pyrolysis, baked-on foods are pyrolyzed (such as oxidized) to carbon ash residue that can be wiped from the interior surfaces of the oven
Implementation Method 2
a metal oxide or hydroxide catalyst
Data Source
AI summary
A composition for an easy to clean surface comprises a reaction product ofa. a first compound of a formula AYB, wherein A comprises an alkyl group, Y comprises a metalloid, and B comprises alkali metal;b. a second compound comprisingi. a compound (1) selected from a group consisting of a compound of a formula MR or a precursor of the compound of the formula MR, wherein M is selected from a group consisting of alkali metal, alkaline earth metal, transition metal, and a mixture thereof, and R is selected from a group consisting of phosphonic group, phosphinic group, phosphoric group, and a mixture thereof;ii. a compound (2) comprising metal oxides, metal hydroxides, or metal peroxides, wherein the metal is selected from alkaline earth metals; and/oriii. A mixture thereof; andc. an optional polymer.Methods of making and using the above compositions are also included.