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 production 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, allowing it to be used in various applications while incorporating carbon dioxide as a raw material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional polyhydroxy polyurethane resins are used as replacements for fossil-based plastics, then carbon dioxide emissions are reduced, but the resin performance is inferior in heat resistance, chemical resistance, and abrasion resistance
Solution Approach 1:
The patent applies composite materials by combining polyhydroxy polyurethane resin with polysiloxane segments to create a modified resin that integrates the environmental benefits of CO2-based resins with the superior performance characteristics of polysiloxane, achieving both reduced emissions and improved reliability
Solution Approach 2:
The patent changes the chemical structure parameters of the polyhydroxy polyurethane resin by introducing polysiloxane modification, which alters the physical and chemical properties to achieve heat resistance, chemical resistance, and abrasion resistance while maintaining the CO2-based origin
2Temperature
If polysiloxane segments are introduced into the polyhydroxy polyurethane resin, then heat resistance and lubricity are improved, but the resin structure becomes more complex
Solution Approach 1:
The patent applies local quality by introducing polysiloxane segments at specific positions within the resin structure (through hydroxyl groups of the polyhydroxy polyurethane) rather than uniformly throughout, achieving localized heat resistance and lubricity enhancement while maintaining overall structural manageability
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 heat resistance, while reducing carbon dioxide emissions and contributing to environmental sustainability.
Implementation Method 1
a polysiloxane-modified polyhydroxy polyurethane resin, which is derived from a reaction between a 5-membered cyclic carbonate polysiloxane compound represented by formula (1) and an amine compound
Data Source
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