Adhesive Composition Using Beta-1,3-Glucan Derivative and Rosin Resin
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Solution Overview
Problem
Adhesive compositions require higher adhesive strength and lower viscosity solutions to improve handling and productivity, while maintaining a thin adhesive layer and excellent external appearance.
Innovation Solution
An adhesive composition combining a β-1,3-glucan derivative with a rosin-based resin, where the rosin-based resin has a softening point of 140° C. or less and an aliphatic hydrocarbon acyl group, is used to enhance adhesive strength and reduce solution viscosity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a β-1,3-glucan derivative is used as an adhesive agent, then environmental load is reduced, but adhesive strength is insufficient
Solution Approach 1:
The patent combines a β-1,3-glucan derivative (biopolymer) with a rosin-based resin (natural resin) to create a composite adhesive system. This combination maintains the environmentally friendly characteristics of the polysaccharide while adding the adhesive strength and bonding properties of the rosin-based resin, thereby resolving the contradiction between environmental load and adhesive strength.
2Ease of operation
If solution viscosity is reduced, then handling and coatability are improved, but adhesive strength may be compromised
Solution Approach 1:
The patent utilizes the specific viscosity characteristics of the rosin-based resin to control the overall solution viscosity. By selecting a rosin-based resin with appropriate viscosity properties, the solution achieves optimal flow characteristics for handling and coating while maintaining sufficient adhesive strength through the synergistic combination of components.
3Productivity
If solids concentration is increased, then productivity is improved, but solution viscosity increases
Solution Approach 1:
The patent employs the rosin-based resin as a vehicle or carrier that can dissolve or disperse the β-1,3-glucan derivative at high concentrations while maintaining acceptable solution viscosity. The rosin-based resin acts as a medium that allows high solids content without excessive viscosity increase, thereby enabling improved productivity.
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 achieves high adhesive strength, reduces solution viscosity, and allows for a thin adhesive layer with improved external appearance and increased solids concentration, enhancing productivity by shortening drying time and improving yields.
Implementation Method 1
the adhesive composition can reduce viscosity of a solution
Implementation Method 2
an adhesive composition, containing a β-1,3-glucan derivative obtained by introducing an acyl group into β-1,3-glucan
Data Source
AI summary
An adhesive composition contains a β-1,3-glucan derivative obtained by introducing an acyl group into β-1,3-glucan; and a rosin-based resin. An adhesive tape (1) includes an adhesive layer (3) formed from the adhesive composition.