Biopolyol Polyester Resin Toner Branching

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Solution Overview

Problem

Current toner systems rely on petroleum-based reagents, which are not environmentally friendly and have a negative impact on the environment, prompting the need for sustainable, bio-based alternatives that can reduce carbon footprint and reliance on fossil fuels.

Innovation Solution

Development of a polyester resin using a biopolyol with multiple hydroxyl groups, obtained from plant, microbial, or animal sources, which enhances branching and crosslinking in toner particles, enabling the production of eco-friendly toner particles for imaging devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If petroleum-based reagents are used to produce polyester resin for toner particles, then the resin can be manufactured with established processes and materials, but the environmental impact increases and carbon footprint grows

Engineering Contradiction:
Improvemanufacturability of polyester resinVSAvoidenvironmental impact
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent substitutes the chemical origin parameter of the polyol from petroleum-based to bio-based sources while maintaining the functional requirements for toner resin production. This parameter change enables eco-friendly toner particles to be produced with reduced environmental impact while preserving manufacturing feasibility through established polyester resin synthesis processes

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite polyester resin system combining bio-based polyol with polyacid components to produce toner particles. This composite approach integrates renewable biological materials with conventional polymer chemistry to achieve both environmental benefits and functional performance in imaging toner applications

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If bio-based polyol is used to produce polyester resin, then the environmental friendliness and carbon footprint reduction improve, but the manufacturing process complexity may increase

Engineering Contradiction:
Improveenvironmental impactVSAvoidmanufacturing process complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent employs bio-based polyol that serves multiple functions: it acts as a renewable feedstock, provides necessary hydroxyl groups for polyester formation, enables branching and crosslinking, and delivers desired toner properties. This multi-functionality reduces the need for additional specialized components or processes, thereby limiting manufacturing complexity despite using bio-based materials

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If biopolyol is used to enhance branching and crosslinking in polyester resin, then the toner particle properties improve, but the reliance on bio-based materials increases potential supply limitations

Engineering Contradiction:
Improvetoner particle performanceVSAvoidavailability of bio-based polyol
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent uses bio-based polyol at optimized concentrations to achieve the necessary degree of branching and crosslinking for reliable toner performance. By applying partial action (using sufficient but not excessive amounts), the patent achieves desired functional properties while conserving bio-based material resources and reducing supply chain pressure

Inventive Principle:
Principle #16Partial or excessive action

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 use of biopolyol-based polyester resin in toner systems results in environmentally friendly toner particles with improved properties, such as enhanced branching and crosslinking, reducing the carbon footprint and dependence on fossil fuels while maintaining performance.

Implementation Method 1

the biopolyol can enhance branching, crosslinking or both of the growing and formed polymers

Methodology Applied
Scientific EffectCrosslinking: Chemical Bonding

Data Source

PatentUS8518624B2Polyester resin comprising a biopolyol
Publication Date: 2013.08.27 XEROX CORP
  • US8518624B2 patent drawing
  • US8518624B2 patent drawing
  • US8518624B2 patent drawing

AI summary

A polyester resin toner-forming composition containing a biopolyol is described. The biopolyol can enhance branching, crosslinking or both.