Crosslinkable Ester Urethane Resins Plastic Waste Recycling
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Solution Overview
Problem
The recycling of plastics, particularly polyethylene, polypropylene, PVC, and PET, is inefficient, resulting in only about 9% of all plastic ever produced being recycled, with the majority ending up in landfills or the environment, where they degrade into microplastics and release toxic additives.
Innovation Solution
Development of crosslinkable ester and urethane resins through compounds of specific formulas, which can participate in polymerization reactions, allowing for the recycling of polymers into high-value resins or prepolymers, and subsequent production of plastics with improved properties through crosslinking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional recycling methods (melting) are used, then recycling process is simple, but the physical and mechanical properties deteriorate due to oxidation and molecular weight reduction
Solution Approach 1:
The patent changes the chemical parameters of the recycling process by using chemical reagents (compounds of formula I, II, III, IV, or V) to facilitate polymerization reactions, transforming the recycling mechanism from simple melting to chemical transformation, thereby improving material properties while maintaining process feasibility
Solution Approach 2:
The patent creates composite resin compositions by combining recycled polymer with specific chemical compounds (formulas I-V) that contain functional groups capable of polymerization, resulting in materials with enhanced physical and mechanical properties compared to virgin plastics
2Reliability
If chemical recycling methods are used to produce high-value resins, then material properties improve, but the process complexity increases
Solution Approach 1:
The patent introduces chemical compounds (formulas I-V) as intermediaries that mediate between the recycled polymer and the desired resin product. These compounds contain functional groups that initiate polymerization reactions, simplifying the overall process by providing a clear chemical pathway from waste polymer to high-value resin
Solution Approach 2:
The patent modifies chemical parameters by introducing specific functional groups (carboxylic acid, ester, urethane) through compounds of formula I-V, enabling controlled polymerization reactions that transform recycled polymer into resin with tailored properties and standardized process parameters
3Ease of manufacture
If conventional recycling is used, then processing is straightforward, but environmental harm increases due to microplastic formation and toxic additive release
Solution Approach 1:
The patent converts the harmful waste polymer into beneficial resin material through controlled chemical transformation. By using compounds of formula I-V to initiate polymerization, the process transforms waste plastic into valuable resin products, eliminating microplastic formation and toxic additive release while maintaining processing feasibility
Solution Approach 2:
The patent changes the chemical state of the polymer from waste form to resin form through controlled polymerization reactions using compounds of formula I-V, fundamentally altering the material's properties to eliminate harmful effects while maintaining ease of processing
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 proposed solution enables the effective recycling of plastics into high-quality resins and plastics, overcoming the limitations of traditional recycling methods by producing materials with superior properties compared to virgin plastics, while reducing environmental impact.
Implementation Method 1
wherein, for at least one of Q1 and Q2, at least one of R1 and R2 can participate in a polymerization reaction
Implementation Method 2
a method of producing a plastic comprising crosslinking the compound of Formula I
Data Source
AI summary
Disclosed herein are crosslinkable ester and urethane resins and methods of making the same. Also disclosed are methods of recycling plastic waste by converting them to crosslinkable ester and urethane resins.