Low temperature synthesis of bio-based polyester
Innovative low-temperature polymerization process using carboxylic acid addition to synthesize bio-based polyesters from cashew nut shell liquid, offering sustainable and customizable paint binders.
Overview
This solution leverages a novel polymerization process that utilizes carboxylic acid addition at low temperatures to synthesize bio-based polyesters. Originating from the renewable resource of cashew nut shell liquid (CNSL), this method provides an eco-friendly alternative to traditional polyester synthesis. The resulting polyesters can be tailored to meet specific industrial requirements, such as molecular weight and mechanical properties, making them ideal for applications like paint binders.
Technical specifications
- Low-temperature polymerization: Utilizes carboxylic acid addition catalyzed by Bronsted or Lewis acids.
- Sustainable raw materials: Employs cashew nut shell liquid, a by-product of the cashew industry, as the primary source.
- Customizable properties: Polyesters can be designed to meet specific molecular, mechanical, and chemical property requirements.
- Application in paint binders: The process has successfully synthesized composites suitable for paint binders.
Technology readiness level
The technology is currently at TRL 3, having been validated in a laboratory setting. Future validation efforts will focus on designing and synthesizing polyesters based on industrial requirements in collaboration with partners.
About Université Claude Bernard Lyon 1
Université Claude Bernard Lyon 1 is a large comprehensive public research university with nearly 49,000 students and 88 research units, combining broad academic provision with a strong innovation orientation. Its location in Lyon places corporate R&D teams within a regional ecosystem of hospitals, national research organizations, competitiveness clusters, technology platforms, and industrial companies. Partnership with the Hospices Civils de Lyon supports translational collaboration and access to clinical settings, while LABCOM arrangements create routes for joint research with companies. Research is supported by competitive funding from France’s National Research Agency and European Union programs, with commercialization supported through Lyon Ingénierie Projets, EZUS, SATT Pulsalys, and the IMPULSE university innovation hub.
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