HTP Polyol Isocyanate Binder for Lignocellulosic Articles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional lignocellulosic article production using isocyanate-based binder compositions requires release agents to prevent adhesion to metal plates, increasing costs and processing steps, and poses fire risks due to elevated temperatures.
Innovation Solution
A method involving a high temperature polymerization (HTP) polyol and an isocyanate component is used to form a binding agent with excellent release properties, eliminating the need for release agents by creating a lignocellulosic article with improved internal bond strength and moisture resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional isocyanate-based binder compositions are used, then adhesive strength and cohesive strength are improved, but release agents are required which increase costs and processing steps
Solution Approach 1:
The patent extracts and eliminates the release agent component from the binder composition system. By modifying the isocyanate-based binder with specific additives and formulation changes, the binding agent achieves sufficient release properties without requiring separate release agent applications, thereby reducing processing steps and costs while maintaining adhesive strength
Solution Approach 2:
The modified binder composition serves multiple functions simultaneously: it provides adhesive bonding between lignocellulosic pieces, enables easy release from metal plates, and maintains structural integrity. This multi-functionality eliminates the need for separate release agent systems while achieving both bonding and release requirements
2Object-generated harmful factors
If release agents are applied on metal plates, then adhesion to equipment is reduced, but fire risks increase due to elevated temperatures
Solution Approach 1:
The patent converts the high temperature processing condition, which traditionally posed fire risks when combined with flammable release agents, into a beneficial factor. The modified binder composition is formulated to be thermally stable at pressing temperatures, eliminating the fire hazard while maintaining release properties. The heat that previously risked igniting release agents now serves to cure the binder effectively
3Ease of operation
If release agents are included in binder composition, then release properties are improved, but production costs increase
Solution Approach 1:
The patent merges the release function with the binder composition itself through formulation modifications. By incorporating specific additives and adjusting the chemical composition of the isocyanate-based binder, the release properties are integrated into the binding agent, eliminating the need for separate release agent materials and reducing overall production costs
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 method produces lignocellulosic articles with enhanced physical properties and reduced adhesion to equipment, decreasing production costs and time, while ensuring safety by eliminating the need for release agents and improving moisture resistance.
Implementation Method 1
providing a high temperature polymerization (HTP) polyol... The HTP polyol has the following chemical structure... mixing the HTP polyol and the isocyanate component to form a binding agent
Data Source
AI summary
A lignocellulosic article comprises a plurality of lignocellulosic pieces and a binding agent disposed on the plurality of lignocellulosic pieces. The binding agent is formed from a high temperature polymerization (HTP) polyol and an isocyanate component. A method of producing the lignocellulosic article is also disclosed.