Polysiloxane-modified polyhydroxy polyurethane resin, method for producing same, heat-sensitive recording material using the resin, imitation leather, thermoplastic polyolefin resin skin material, material for weather strip, and weather strip
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Solution Overview
Problem
Polyhydroxy polyurethane resins that use carbon dioxide as a raw material are inferior in performance and lack the necessary characteristics for industrial applications, such as heat resistance, chemical resistance, and abrasion resistance, making them unsuitable as replacements for fossil-based plastics, and they also contribute to carbon dioxide emissions.
Innovation Solution
A polysiloxane-modified polyhydroxy polyurethane resin is developed through a reaction between a 5-membered cyclic carbonate polysiloxane compound and an amine compound, which enhances the resin's properties like lubricity, heat resistance, and non-tackiness, and allows it to incorporate carbon dioxide, making it suitable for various applications while reducing greenhouse gas emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If polyhydroxy polyurethane resins are used as replacements for fossil-based plastics, then carbon dioxide emissions are reduced, but the resins are inferior in heat resistance, chemical resistance, and abrasion resistance
Solution Approach 1:
The patent creates a composite material by modifying polyhydroxy polyurethane resin with polysiloxane segments. The polysiloxane-modified polyurethane resin combines the environmental benefits of CO2-based resins with the superior thermal and mechanical properties of polysiloxane, achieving both reduced carbon dioxide emissions and improved heat resistance, chemical resistance, and abrasion resistance
Solution Approach 2:
The patent changes the chemical structure parameters of the polyhydroxy polyurethane resin by introducing polysiloxane segments through reaction with cyclic carbonate compounds. This structural modification transforms the resin's properties, enhancing its heat resistance, chemical resistance, and abrasion resistance while maintaining its CO2-based composition
2Loss of substance
If conventional polyhydroxy polyurethane resins are produced using carbon dioxide, then fossil resource consumption is reduced, but the resins lack necessary industrial application characteristics
Solution Approach 1:
The patent develops a composite resin system where polysiloxane segments are incorporated into the polyhydroxy polyurethane structure. This composite approach enables the resin to meet diverse industrial application requirements while maintaining its CO2-based composition, thus reducing fossil resource consumption without compromising adaptability
Solution Approach 2:
The polysiloxane-modified polyurethane resin achieves multi-functionality, making it suitable for various industrial applications including thermal recording media, coating materials, adhesives, and sealing materials. The resin simultaneously provides reduced fossil resource consumption and the necessary characteristics for diverse industrial uses
3Temperature
If a heat-resistant protective layer is formed on thermal recording media, then heat resistance is improved, but lubricity and non-tackiness may deteriorate
Solution Approach 1:
The heat-resistant protective layer is formed using polysiloxane-modified polyurethane resin, which combines the heat resistance of polysiloxane with the lubricity and non-tackiness of polyurethane. This composite material simultaneously achieves improved heat resistance while maintaining excellent lubricity and non-tackiness for thermal recording media
Solution Approach 2:
The protective layer is specifically applied to the back side of the thermal recording media where heat contact occurs, providing localized heat resistance where needed while preserving the lubricity and non-tackiness properties in the thermal recording layer on the front side
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 polysiloxane-modified polyhydroxy polyurethane resin provides improved performance in thermal recording media, imitation leathers, skin materials, and weather strips, offering excellent lubricity, abrasion resistance, and chemical resistance, while also contributing to carbon dioxide reduction and environmental sustainability.
Implementation Method 1
A polysiloxane-modified polyhydroxy polyurethane resin is developed through a reaction between a 5-membered cyclic carbonate polysiloxane compound and an amine compound
Data Source
Figure 1~2
Figure 3
AI summary
Disclosed are a polysiloxane-modified polyhydroxy polyurethane resin characterized by being derived from a reaction between a 5-membered cyclic carbonate polysiloxane compound represented by the below-described formula (1) and an amine compound, and its production process; and a resin composition, thermal recording medium, imitation leather, thermoplastic polyolefin resin skin material, weather strip material, and weather strip, all of which make use of the resin. wherein A means or