Liquid Brominated Rubber for Non-Solvent Flame Protection
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Solution Overview
Problem
Current flame retardant compositions are difficult to apply as they require cutting and often use solvents, and there is a need for non-chlorinated, easy-to-apply solutions suitable for the electronics industry and non-toxic environments like schools and hospitals.
Innovation Solution
A liquid brominated rubber polymeric composition that can be applied without cutting, made by dissolving ethylene propylene ethylidene norbornene rubber polymer in hexane with myrcene, and incorporating bromine through N-bromo-succinimide, which can be used in various forms including insulating foams and fabrics, and does not require solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solid flame retardant compositions are used, then flame protection is provided, but application requires cutting which increases complexity and time
Solution Approach 1:
The patent changes the physical state parameter of the flame retardant composition from solid to liquid form. This allows the composition to be applied by coating or spraying methods without cutting, significantly improving ease of operation while maintaining flame protection effectiveness
Solution Approach 2:
The liquid composition enables hydraulic or pneumatic application methods such as spraying or pumping into sealed spaces, replacing mechanical cutting operations and simplifying the application process for complex geometries
2Ease of operation
If solvent-based processes are used, then application is easier, but toxicity increases and environmental safety decreases
Solution Approach 1:
The patent extracts and eliminates harmful solvents from the flame retardant composition, achieving a solvent-free formulation that maintains ease of application through liquid consistency while removing toxicity and environmental hazards
Solution Approach 2:
The patent converts the potential harm of requiring solvents for liquid consistency into a benefit by developing a solvent-free composition that achieves comparable or superior application properties while eliminating toxic effects on health and environment
3Reliability
If chlorinated flame retardants are used, then flame retardancy is effective, but environmental safety and non-toxicity are compromised
Solution Approach 1:
The patent uses a composite material system combining brominated rubber polymer with specific additives to achieve effective flame retardancy without chlorine, creating a non-chlorinated composition that maintains fire protection while improving environmental safety and non-toxicity
Solution Approach 2:
The patent changes the chemical composition parameter by substituting chlorinated compounds with brominated rubber-based compounds, maintaining flame retardant effectiveness while eliminating the harmful environmental and toxicological effects associated with chlorinated flame retardants
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 comprehensive and complete flame protection that can flow into small spaces, is non-toxic, and suitable for electronics and sensitive environments, offering effective flame retardancy without the need for solvent-based processes.
Implementation Method 1
flows into small spaces
Implementation Method 2
incorporating bromine through N-bromo-succinimide
Data Source
AI summary
A flame retardant brominated rubber polymeric composition, wherein the composition can include ethylene propylene ethylidene norbornene rubber polymer and from 12 weight percent to 55 weight percent of bromine covalently bonded thereto. The method can include dissolving a liquid ethylene propylene ethylidene norbornene rubber polymer in hexane with myrcene, forming the composition. The method can include dissolving ethylene propylene ethylidene norbornene rubber polymer in hexane, forming a solution, and adding bromine, or blending N-bromo-succinimide into the solution, forming a suspension. The method can include heating the suspension and stifling the suspension until all bromine in the N-bromo-succinimide has reacted with the ethylene propylene ethylidene norbornene rubber polymer, forming the composition as a solid in a liquid. The method can include removing the liquid from the solid, and flashing off the hexane from the liquid to extract the composition.