Mid-soluble phthalocyanine colourants for improved plastic recycling
Innovative mid-soluble phthalocyanine colourants enable easier recycling of coloured plastics without compromising pigment stability. This technology aims to enhance recycling processes while maintaining colour integrity.
Overview
The challenge of recycling coloured plastics, such as those containing copper phthalocyanines (CuPcs), is addressed by engineering mid-soluble phthalocyanine colourants. These innovative colourants maintain the stability and characteristics of pigments while incorporating partial solubility, facilitating easier extraction from plastics during recycling processes. The technology aims to support sustainable recycling practices without altering the aesthetic and functional properties of coloured plastics.
Technical specifications
Key features:
- Mid-solubility design: Engineered to be partially soluble, allowing for effective recycling while retaining pigment properties.
- Nanoparticle integration: Utilizes nanoparticles to ensure long-term stability and consistent colour performance.
- Versatile application: Applicable to a wide range of plastics, including polyurethane and polypropylene.
- Synthesis of alternative Pcs: Incorporates unique substituents to achieve desired solubility and stability characteristics.
Technology readiness level
This technology is currently at Technology Readiness Level 3, indicating that it has been proven in principle and is in the early stages of experimental validation in a laboratory setting. Further development and industrial feedback are sought to refine the solubility and stability characteristics for broader applications and commercial viability.
About University of Toronto
The University of Toronto is a comprehensive public research university with three campuses in the Toronto region and a globally scaled research enterprise. Its downtown footprint is embedded within a major academic health network and an adjacent innovation district, enabling co-located labs, clinical trials, and rapid testing with end users. Companies connect through co-op and long-duration internships, sponsored research, and access to shared core facilities and prototyping resources. Research is supported by Canada’s Tri‑Agency (NSERC, CIHR, SSHRC) and the Canada Foundation for Innovation, alongside provincial programs and industry partnerships. A dedicated technology transfer office provides IP management, licensing, and startup support through a coordinated entrepreneurship network.
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