Diglycidyl Ether Reaction Product for Coating Rheology
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Solution Overview
Problem
Current synthetic associative thickeners for waterborne coatings fail to provide a balance of key performance properties such as film build, flow and leveling, and gloss, and often have poor compatibility with paint ingredients, limiting their flexibility and effectiveness in achieving desired rheology requirements.
Innovation Solution
A reaction product derived from a diglycidyl ether component, a difunctional active hydrogen containing component, and a hydrophobic component is developed, allowing for controlled hydrophilic and hydrophobic functionalities and independent selection of hydrophobic groups to achieve a wide range of performance targets in coatings, including improved thickening efficiency and compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If natural thickeners are used, then they are derived from natural products, but they are subject to microbial attack requiring antimicrobial agents
Solution Approach 1:
The invention changes the chemical parameters of the thickener by using synthetic polymers with controlled hydrophilic-lipophilic balance (HLB) values and specific functional groups, transforming the material from natural to synthetic origin to achieve microbial resistance while maintaining thickening functionality
Solution Approach 2:
The invention creates composite thickener molecules combining hydrophilic polymer chains with hydrophobic side groups, forming a composite structure that provides both thickening efficiency and resistance to microbial degradation through the synthetic polymer architecture
2Adaptability or versatility
If synthetic thickeners are used, then they can be tailored for desired properties, but they may have poor compatibility with paint ingredients
Solution Approach 1:
The invention adjusts the HLB parameter of the thickener by varying the ratio of hydrophilic to hydrophobic components and modifying molecular weight, enabling optimization of both compatibility with paint ingredients and desired rheological properties through precise parameter control
Solution Approach 2:
The invention introduces localized hydrophobic side groups on the hydrophilic polymer backbone, creating regions with different properties that enable simultaneous compatibility with both aqueous phases and organic paint ingredients through local interaction optimization
3Productivity
If conventional thickeners are used, then they provide basic thickening, but they fail to provide balanced film build, flow and leveling, and gloss properties
Solution Approach 1:
The invention designs composite thickener molecules with both hydrophilic polymer backbones for thickening efficiency and hydrophobic side groups for film formation and surface properties, achieving a balanced composite structure that simultaneously delivers film build, flow, leveling, and gloss performance
Solution Approach 2:
The invention creates a multi-functional thickener that performs multiple roles: thickening, film building, flow control, and gloss enhancement, through the integrated molecular structure that combines hydrophilic and hydrophobic functionalities in a single polymer system
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 solution provides a balanced thickening effect, enhancing film build, flow, and leveling while ensuring compatibility with paint ingredients, thus addressing the limitations of existing thickeners and achieving superior rheological properties in coatings.
Implementation Method 1
Reaction products of diglycidyl ethers with difunctional active hydrogen containing and hydrophobic components
Data Source
AI summary
A reaction product derived from a reactant comprising a diglycidyl ether component, a difunctional active hydrogen containing component and a hydrophobic component is disclosed. Additionally, the present disclosure relates generally to compositions comprising the reaction products and applications thereof in various industrial areas such as coatings.