Bio-based Polyester Toner Resins from Cardanol
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Solution Overview
Problem
There is a need for environmentally friendly and health-safe alternatives to petroleum-based reagents in toner production to reduce environmental impact and health risks associated with traditional toner manufacturing processes.
Innovation Solution
The use of polyhydroxylated cardanol derivatives, derived from cardanol by reacting it with glycerine carbonate, to create a polyester resin suitable for toner production, which can be copolymerized with polyacidic monomers to produce bio-based toner resins with properties similar to conventional polyester resins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If petroleum-based reagents are used in toner production, then performance characteristics of toner resins are achieved, but environmental impact and health risks increase
Solution Approach 1:
The patent changes the chemical origin parameter of the polyol from petroleum-based to bio-based cardanol derivative, transforming the molecular structure while maintaining the functional properties required for toner resin performance. This parameter change enables the resin to achieve both environmental benefits and performance requirements.
Solution Approach 2:
The patent creates a composite polyester resin system combining bio-based cardanol derivative polyol with conventional polyacidic monomers. This composite approach allows the resin to exhibit both the desirable performance characteristics of traditional toner resins and the environmental benefits of bio-based materials.
2Adaptability or versatility
If conventional polyester resins are used, then toner performance is maintained, but reliance on petroleum-based reagents increases
Solution Approach 1:
The patent changes the source parameter of the polyol component from petroleum-based to renewable bio-based cardanol derivative, reducing dependence on fossil fuels while maintaining the quantitative and qualitative properties needed for effective toner resin formulation.
Solution Approach 2:
The patent utilizes cardanol, a by-product of the cashew industry, as a renewable resource that can be self-sufficiently sourced, reducing the need for petroleum-based reagents and enabling a more sustainable toner production process.
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
This approach results in bio-based toner resins that offer reduced environmental and health hazards while maintaining the performance characteristics of conventional toner resins, providing a sustainable solution for imaging devices.
Implementation Method 1
reacted with glycerine carbonate to form a polyhydroxylated cardanol derivative
Implementation Method 2
copolymerized with polyacidic monomers to produce bio-based toner resins
Data Source
AI summary
The present disclosure provides a polyester toner resin comprising a polyhydroxylated cardanol derivative, that may be used in manufacturing an emulsion aggregation (EA) toner for imaging devices.