Self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin, resin material containing same, method for producing same, artificial leather comprising same, and thermoplastic polyolefin skin material comprising same
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Solution Overview
Problem
Polyhydroxy polyurethane resins, which utilize carbon dioxide as a raw material, are inferior in performance compared to similar polyurethane-based resins, limiting their industrial applications and environmental benefits, particularly in reducing global warming and resource depletion.
Innovation Solution
A self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin is developed through a reaction of a 5-membered cyclic carbonate polysiloxane compound and an amine compound, incorporating polysiloxane segments and masked isocyanate groups, which undergo self-crosslinking upon heat treatment to enhance heat resistance, chemical resistance, and abrasion resistance, while fixing carbon dioxide within the resin structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If polyhydroxy polyurethane resins are used as base materials, then carbon dioxide fixation and environmental benefits are achieved, but heat resistance, chemical resistance, and abrasion resistance are insufficient
Solution Approach 1:
The patent creates a composite resin system by combining polyhydroxy polyurethane resin (containing fixed carbon dioxide) with polysiloxane segments and masked isocyanate groups. This composite structure integrates the environmental benefits of CO2 fixation with the superior heat and chemical resistance of polysiloxane components, resolving the contradiction between environmental performance and material reliability
Solution Approach 2:
The patent modifies the chemical structure of polyhydroxy polyurethane resin by incorporating polysiloxane segments and masked isocyanate groups, changing the physical and chemical parameters of the resin. This structural modification transforms the resin from having poor heat and chemical resistance to exhibiting enhanced durability while maintaining CO2 fixation capability
2Reliability
If conventional polyurethane-based resins are used, then heat resistance, chemical resistance, and abrasion resistance are improved, but carbon dioxide fixation and environmental benefits are lost
Solution Approach 1:
The patent merges two previously separate concepts: polyhydroxy polyurethane resin (environmentally beneficial with CO2 fixation) and polysiloxane-modified resin (performance-enhancing with heat and chemical resistance). This merging creates a unified resin system that simultaneously achieves both environmental sustainability and superior material performance
3Object-generated harmful factors
If polyhydroxy polyurethane resins are developed for industrial applications, then environmental conservation is achieved, but performance characteristics remain inferior to similar resins
Solution Approach 1:
The patent incorporates masked isocyanate groups that enable self-crosslinking of the resin system. This self-service mechanism allows the resin to automatically enhance its own structural integrity and performance characteristics through crosslinking, eliminating the need for additional complex processing steps while improving industrial applicability
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 resulting resin provides improved performance in heat resistance, chemical resistance, and abrasion resistance, making it suitable for industrial applications and contributing to environmental conservation by reducing carbon dioxide emissions, thus addressing global warming and resource depletion issues.
Implementation Method 1
having been derived from a reaction of a 5-membered cyclic carbonate polysiloxane compound (1) and an amine compound
Implementation Method 2
masked isocyanate groups in a structure thereof, which undergo self-crosslinking upon heat treatment
Implementation Method 3
fixing carbon dioxide within the resin structure
Data Source
AI summary
Provided are a self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin derived from a reaction of a 5-membered cyclic carbonate polysiloxane compound represented by the following formula (1) and an amine compound and having polysiloxane segments and masked isocyanate groups in its structure: wherein A means and its production process. The present invention can provide a polyhydroxy polyurethane resin, the development of applications of which has not moved ahead in the prior art, as a novel self-crosslinking polyhydroxy polyurethane resin that enables to provide products excellent in lubricity, abrasion resistance, chemical resistance, non-tackiness, heat resistance and the like, is useful from the viewpoint of the reduction of warming gas, and is responsive to the environment.