Water-Based Adhesive Composition Using Starch and Fatty Acids
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Solution Overview
Problem
Conventional glue sticks contain ecologically harmful and health-damaging solvents, as well as non-natural ingredients, which compromise their environmental and health safety while offering inadequate adhesive properties.
Innovation Solution
An adhesive composition comprising at least 98% by weight of water, starch and/or starch derivatives, glycerol, and fatty acid or fatty acid salt, which is free from organic solvents and synthetic compounds, utilizing potato and/or corn starch, plant-based fatty acids, and natural additives for enhanced adhesive properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional adhesive compositions contain organic solvents and synthetic compounds, then adhesive properties can be improved, but environmental and health safety deteriorates
Solution Approach 1:
The patent removes harmful organic solvents and synthetic compounds from the adhesive composition, extracting only the essential water, starch, glycerol, and fatty acid components. This extraction eliminates the harmful factors while preserving the adhesive functionality through natural ingredients.
Solution Approach 2:
The patent changes the compositional parameters by specifying exact proportions: water (60%), starch (23%), glycerol (10%), and fatty acid (5%). This precise parameter control achieves optimal adhesive properties using only safe, natural ingredients without requiring harmful solvents or synthetics.
2Object-affected harmful factors
If adhesive compositions use natural ingredients like water, starch, glycerol, and fatty acids, then environmental and health safety is improved, but adhesive properties may deteriorate
Solution Approach 1:
The patent achieves excellent adhesive properties with natural ingredients by precisely controlling the parameters: 60% water, 23% starch, 10% glycerol, and 5% fatty acid. This specific composition ratio optimizes the adhesive performance of natural components without requiring synthetic additives.
Solution Approach 2:
The patent creates a composite adhesive system combining multiple natural ingredients (starch as adhesive agent, glycerol as plasticizer, fatty acid as framework former) that work synergistically to achieve superior adhesive properties comparable to or exceeding conventional synthetic adhesives.
3Ease of operation
If adhesive compositions contain solvents with boiling point below 200°C, then application properties can be improved, but environmental harm and health risk increase
Solution Approach 1:
The patent completely removes volatile organic solvents from the formulation, retaining only water as the liquid carrier. This extraction eliminates environmental harm and health risks while maintaining application properties through the water-based starch-glycerol-fatty acid system.
Solution Approach 2:
The patent replaces persistent harmful solvents with water, a benign, readily available, and completely safe carrier that evaporates harmlessly, leaving no toxic residue and posing no environmental or health risks.
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 adhesive composition exhibits excellent adhesive properties, is environmentally friendly, and safe for human use, providing strong, durable bonding with improved handling and application characteristics, while being free from harmful solvents and synthetic materials.
Implementation Method 1
aqueous preparations of an adhesive agent, such as polyvinylpyrrolidone, aqueous polyacrylates, polyvinyl alcohols, and mixtures
Implementation Method 2
Propylene glycol is often added to glue sticks as a plasticizer
Implementation Method 3
framework-forming ingredients, such as fatty acids, which, in the form of a soap gel, give the glue stick its shape-giving consistency
Data Source
AI summary
The invention relates to an adhesive composition which comprises a proportion of water, starch and/or starch derivatives, glycerine and at least one fatty acid and/or a salt of a fatty acid of at least 98 % in wt.