Methylene Malonate Primer for Fast Curing and Solvent-Free Application
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Solution Overview
Problem
Current construction primers based on epoxy, urethane, and acrylate resins have long curing times, especially at low temperatures or high humidity, and are associated with health hazards due to solvent use, and require complex two-package mixtures.
Innovation Solution
A curable resin composition comprising methylene malonate monomer and polymer, mixed in specific ratios, which can be anionically polymerized on basic substrates like concrete, providing fast curing, excellent adhesion, acid/alkaline resistance, and solvent resistance without the need for extra catalysts or solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If epoxy-based or urethane-based primers are used, then good adhesion and chemical resistance are achieved, but curing time becomes long especially at low temperature or high humidity
Solution Approach 1:
The patent changes the chemical parameters of the resin system by using methylene malonate monomers and polymers with specific functional groups that enable fast curing through anionic polymerization mechanism, while maintaining adhesion and chemical resistance properties through molecular structure design
Solution Approach 2:
The patent creates a composite resin system combining methylene malonate monomer and polymer components that work synergistically to achieve both fast curing and durable performance, replacing traditional epoxy or urethane systems
2Loss of time
If acrylate-based primers are used, then fast curing is achieved, but strong odor is generated
Solution Approach 1:
The patent changes the chemical composition parameters by selecting methylene malonate monomers with specific alkyl groups that provide fast curing through anionic polymerization while having low vapor pressure and minimal odor, replacing acrylate chemistry
3Ease of operation
If solvent-based primers are used, then good penetration and sealing of porous surfaces are achieved, but health hazards are caused by xylene-based or toluene-based chemicals
Solution Approach 1:
The patent extracts and removes the solvent component from the primer formulation entirely, using a 100% solid resin composition that achieves penetration and sealing through the resin's inherent properties without relying on volatile organic solvents like xylene or toluene
Solution Approach 2:
The patent changes the physical state parameters from solvent-containing liquid to 100% solid composition, eliminating VOC emissions while maintaining application performance through careful formulation of the methylene malonate system
4Reliability
If two-package primer products are used, then proper mixing ratio ensures good performance, but handling complexity increases due to strict proportioning requirements
Solution Approach 1:
The patent merges the separate components of two-package systems into a single-component formulation, combining the resin and curing agent functions into one methylene malonate-based composition that cures through anionic polymerization without requiring mixing
Solution Approach 2:
The patent creates a self-sufficient single-component system that automatically cures upon application to the substrate, eliminating the need for user intervention in mixing and ratio control, making the product self-serviceable and easier to handle
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 achieves fast curing, good adhesion, and resistance to solvents and environmental conditions, while being free of volatile organic compounds and simplifying handling with a single-component application.
Implementation Method 1
the methylene malonate monomer and the polymer thereof are mixed in a certain ratio. Such composition can be anionic polymerized with intrinsically basic substrates, e.g. concrete and basic stone surface
Data Source
AI summary
The present invention relates to a curable resin composition. More specifically, the present invention relates to a composition comprising methylene malonate functional reactive resin, to its preparation methods, and to the use of the composition in the construction field.