Multicolor Paint Large Pigment Globules Stability
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Solution Overview
Problem
Existing multicolor paints have limitations in achieving desired color effects and stability, particularly in outdoor applications, due to small pigment particle sizes and high volatile organic compound (VOC) content, which do not meet regulatory standards and are prone to breakdown under shear forces.
Innovation Solution
A method for preparing a multicolor paint composition involving a resin composition, a colloid-forming composition, and dispersed pigment compositions, with pigment globules ranging from 2.5 mm to 20 mm in size, using a combination of water, polymeric resin, thickener, plasticizer, and gelling agents, along with additives like preservatives and surfactants, to create a stable and low-VOC coating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If small pigment particle sizes are used in existing multicolor paints, then the paint can be easily applied and dispersed, but the color effects are insufficient and the pigment particles are prone to breakdown under shear forces
Solution Approach 1:
The patent segments the pigment into large discrete globules (2.5-20 mm) rather than using fine particles. These segmented globules are suspended in the water-in-water matrix, providing both stability against shear forces and distinct color effects when the paint is applied.
Solution Approach 2:
The patent changes the size parameter of pigment particles from conventional fine particles to large globules (2.5-20 mm). This parameter change fundamentally alters the behavior of the pigment, making it resistant to breakdown while maintaining dispensability through the use of gelling agents and specific viscosity control.
2Object-generated harmful factors
If conventional multicolor paints are used, then they provide color variety, but they contain high VOC content that does not meet regulatory standards
Solution Approach 1:
The patent changes the chemical composition parameter by using water-in-water technology, replacing organic solvents with water-based systems. This parameter change eliminates VOC emissions while maintaining coating stability through the use of gelling agents, thickeners, and controlled viscosity formulation.
Solution Approach 2:
The patent creates a composite water-in-water system combining multiple aqueous phases with different functionalities: resin composition for adhesion, gelling agents for structure, thickeners for viscosity control, and pigment suspensions for color. This composite approach achieves low VOC content while ensuring coating stability.
3Reliability
If large pigment globules are used, then the color effects and stability are improved, but the paint formulation becomes more complex
Solution Approach 1:
The patent segments the formulation into distinct functional modules: resin composition, gelling agent composition, pigment suspension, and additive packages. Each module can be independently formulated and then combined, which simplifies the overall formulation process despite the complexity of the final product.
Solution Approach 2:
The patent uses multi-functional ingredients that perform multiple roles: gelling agents provide both structure formation and pigment suspension; thickeners control viscosity and improve stability; resin provides adhesion and film formation. This multi-functionality reduces the total number of ingredients needed despite the complex performance requirements.
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 resulting multicolor paint composition provides stable, durable coatings with large pigment globules, low VOC content, and improved storage stability, suitable for various applications, including exterior use, while meeting regulatory requirements.
Implementation Method 1
providing a colloid-forming composition comprising water and a gelling agent
Implementation Method 2
providing a colloid-forming composition comprising water and a gelling agent
Implementation Method 3
providing a resin composition comprising water, a thickener, a polymeric resin, and a plasticizer
Implementation Method 4
the additive is selected from the group consisting of preservatives, surfactants, stabilizers, and defoaming agents
Data Source
AI summary
In one aspect of the present disclosure is a multicolor paint composition comprising a mixture of a resin composition, a colloid-forming composition, and at least one dispersed pigment composition.