Non-flammable Contact Adhesive Solvent Blend
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Solution Overview
Problem
Solvent-based contact adhesives offer high shear strength and short dry times but are often flammable, posing safety risks.
Innovation Solution
A non-flammable contact adhesive is developed using a solvent blend of trans-dichloroethylene, hydrofluoroolefin, and hydrofluorocarbon, combined with copolymer rubbers and stabilizing resins, which suppresses the flash point and provides adhesive performance suitable for bonding High Pressure Decorative Laminate to wood-based substrates, available as both bulk and aerosol adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If solvent-based contact adhesives are used to achieve high shear strength and short dry times, then adhesive performance is improved, but flammability increases posing safety risks
Solution Approach 1:
The patent changes the chemical composition parameters of the solvent system by incorporating hydrofluoroolefin and hydrofluorocarbon components with specific flash points above 100°F, transforming the adhesive from flammable to non-flammable while preserving the required shear strength and drying characteristics through optimized solvent ratios
Solution Approach 2:
The patent creates a composite solvent system combining multiple components including hydrofluoroolefin, hydrofluorocarbon, and other co-solvents in specific proportions, where the synergistic interaction of these components achieves both non-flammability and high adhesive performance that cannot be obtained with single solvents alone
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 effectively eliminates flammability while maintaining high adhesive performance, allowing for safe use in various applications, including aerosol sprays, with a solvent composition that balances evaporation rates to ensure non-flammability and meets performance requirements for bonding to wood-based substrates.
Implementation Method 1
a non-flammable contact adhesive including copolymer rubbers, tackifiers, stabilizer resins, and a solvent composed of a mixture of flammable and non-flammable components
Implementation Method 2
the solvent is composed of 40 to 90 weight percent of trans-dichloroethylene, 5 to 20 weight percent of hydrofluoroolefin, and 5 to 20 weight percent of hydrofluorocarbon fluid
Data Source
AI summary
A non-flammable contact adhesive includes copolymer rubbers, tackifiers, stabilizer resins, and a solvent composed of a mixture of flammable and non-flammable components.