Copolymer Silane Coating for Siliceous Surfaces
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Solution Overview
Problem
Existing compositions for protecting siliceous surfaces from soil and stain accumulation are inadequate in providing long-lasting protection and are often reliant on silica nanoparticles, which may not be effective in all scenarios.
Innovation Solution
A composition comprising a water-soluble copolymer of an ethylenically unsaturated acidic monomer and an ethylenically unsaturated monomer with a nitrogen-containing terminal group, combined with a hydrophilic zwitter-ionic silane compound, and a surfactant, all dispersed in a liquid phase, without silica nanoparticles, to provide both cleaning and protection properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silica nanoparticles are used in the composition, then protection against soil and stain accumulation is provided, but the composition does not provide long-lasting protection and may not be effective in all scenarios
Solution Approach 1:
The patent changes the chemical parameters of the composition by replacing silica nanoparticles with a copolymer system containing ethylenically unsaturated acidic monomers and ethylenically unsaturated monomers with nitrogen-containing terminal groups. This parameter change transforms the protection mechanism from particle-based to polymer-based, enabling long-lasting protection through covalent bonding and crosslinking reactions that create a durable protective layer on siliceous surfaces.
Solution Approach 2:
The patent creates a composite protective system by combining multiple polymer components (acidic monomer polymer and nitrogen-containing monomer polymer) that work synergistically. The acidic monomer provides anchoring to the siliceous surface while the nitrogen-containing monomer forms crosslinked networks, creating a composite material structure that delivers both effectiveness and long-lasting protection.
2Reliability
If higher concentration of hydrophilic silane is used, then protection properties are improved, but the composition complexity and formulation difficulty increase
Solution Approach 1:
The patent changes the concentration parameter of hydrophilic silane from high to low by introducing the copolymer system. The polymer components provide the necessary protection properties through their molecular structure and crosslinking capability, allowing the formulation to achieve effective protection at lower silane concentrations, thereby reducing composition complexity.
3Reliability
If silica nanoparticles are included in the composition, then protection is provided, but the composition relies on a mechanism that is not effective in all scenarios
Solution Approach 1:
The patent creates a versatile protective coating by combining multiple polymer components with different functional groups that can adapt to various siliceous surfaces and environmental conditions. The acidic monomer provides surface anchoring capability while the nitrogen-containing monomer creates crosslinked networks, forming a composite material system that delivers reliable protection across different应用场景.
Solution Approach 2:
The copolymer system provides multi-functional protection by combining surface anchoring (through acidic groups), crosslinking (through nitrogen-containing groups), and hydrophilic silane bonding (through silane groups). This multi-functional design makes the composition universally effective across different siliceous surfaces and protection scenarios, replacing the scenario-limited silica nanoparticle approach.
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 effectively reduces the concentration of hydrophilic silane required, enhances protection properties by improving the number of cycles before removal, and provides long-lasting protection against soil and stain accumulation on siliceous surfaces.
Implementation Method 1
a hydrophilic zwitter-ionic silane compound
Implementation Method 2
a water-soluble polymer, or salt thereof... a copolymer of an ethylenically unsaturated acidic monomer and an ethylenically unsaturated monomer comprising a nitrogen-containing terminal group
Implementation Method 3
a water-soluble polymer, or salt thereof... a copolymer of an ethylenically unsaturated acidic monomer and an ethylenically unsaturated monomer comprising a nitrogen-containing terminal group
Implementation Method 4
a surfactant, all dispersed in a liquid phase
Data Source
Figure 1
AI summary
Compositions include a water-soluble copolymer, a hydrophilic silane compound, and in some embodiments surfactant dispersed in a liquid phase. Methods of using the compositions to coat and optionally clean a substrate are also disclosed.