Hyperbranched Polymer Coating Rapid Curing Fire Resistance
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Solution Overview
Problem
Existing intumescent, vibration damping, and insulation coatings face challenges such as exposure to weather conditions during application, leading to coating failure, require multiple coats for optimal thickness, and contain volatile organic compounds (VOCs), which are hazardous and increase labor and energy costs.
Innovation Solution
A composition comprising a polymeric binder with a hyperbranched polymer or covalently bonded surfactant, a coagulating agent, and additives like intumescent, vibration damping, or insulation agents, forming a non-sagging, water-resistant coating within 30 seconds of application, suitable for fire resistance, vibration damping, or insulation, without the need for multiple coats or VOCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional intumescent, vibration damping, and insulation coatings are applied, then fire resistance, vibration damping, and insulation properties are improved, but the coatings require multiple coats to achieve desired thickness, increase labor costs, and are prone to cracking upon curing
Solution Approach 1:
The patent modifies the chemical composition parameters of the coating by incorporating a polyol and isocyanate system that enables rapid curing. This parameter change allows the coating to achieve desired thickness and fire resistance in a single application, eliminating the need for multiple coats while maintaining reliability.
Solution Approach 2:
The invention uses a composite coating system combining polyol, isocyanate, and fire retardant additives. This composite formulation provides both the desired fire resistance and vibration damping properties while enabling fast curing and single-coat application, resolving the contradiction between reliability and productivity.
2Speed
If external methods like dryers are used to accelerate curing, then curing speed is improved, but energy costs increase
Solution Approach 1:
The coating system is designed to cure rapidly through its own chemical reaction between polyol and isocyanate components without requiring external energy input. The formulation inherently provides fast curing through self-service chemical mechanisms, eliminating the need for external dryers and reducing energy costs while maintaining high curing speed.
3Reliability
If coatings are applied to exterior surfaces, then fire protection is provided, but weather conditions during application can cause coating failure
Solution Approach 1:
The coating forms a dry-to-touch surface rapidly through fast curing, creating a protective barrier before rainfall or adverse weather can cause failure. This preliminary action of rapid surface formation protects the coating from weather-related damage while maintaining fire protection reliability.
4Reliability
If traditional coatings are used, then fire resistance is achieved, but volatile organic compounds create hazards during application
Solution Approach 1:
The patent changes the chemical composition parameters by using a polyol and isocyanate system that eliminates volatile organic compounds while maintaining fire resistance. This parameter change achieves both safety (reducing VOC hazards) and functional reliability (fire protection) simultaneously.
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 rapid, single-coat application that is dry-to-the-touch and water-resistant, enhancing fire resistance, vibration damping, and insulation while minimizing environmental hazards and reducing application time and costs.
Implementation Method 1
a polymeric binder that includes a hyperbranched polymer or a polymer comprising a covalently bonded surfactant
Implementation Method 2
a second composition that includes a coagulating agent... the first composition and the second composition are configured to form a coating within 30 seconds of application
Implementation Method 3
Intumescent agents/materials are substances that expand on exposure to heat to produce an insulating foam or 'char.'
Implementation Method 4
Chars have low thermal conductivity and a volume many times that of the original coating. The volume expansion and charring protects any underlying substrate as the char acts as a poor conductor of heat
Implementation Method 5
sound damping materials are applied to the vibrating areas to effectively dissipate the vibrational energy
Data Source
AI summary
A coating composition includes a first composition comprising a polymeric binder comprising a hyperbranched polymer or a polymer comprising a covalently bonded surfactant; a second composition comprising a coagulating agent; and an additive comprising an intumescent agent, a vibration damping agent, an insulation agent, or a combination of two or more thereof; wherein: the additive is present in the first composition, the second composition, or both the first and second compositions; the intumescent agent comprises an acid source, a carbon source, and a gas forming agent; the vibration damping agent comprises a first filler; the insulation agent comprises a second filler; and the first composition and the second composition are configured to form a coating within 30 seconds of application to a substrate, and the coating is non-sagging, water-resistant, and dry-to-the touch.