Seauciel LLC

Seauciel LLC is a technology-focused enterprise dedicated to advancing the circular economy by producing value-added materials from comingled plastic waste. The company has developed a patent-pending technology referred to as water-phase chemical mechanical recycling. This innovative process utilizes water heated above its normal boiling point to convert polymer mixtures, such as polyethylene and polypropylene, into a microscopically mixed state without causing polymer degradation. By carefully controlling exposure to high temperatures, this method minimizes the loss of molecular weight, removes pigments, and significantly reduces the volatile organic compounds typically associated with recycled plastics. This approach aims to provide a sustainable alternative to traditional mechanical and chemical recycling methods, offering energy efficiency comparable to mechanical recycling while producing materials with properties closer to virgin plastic.

This technology addresses significant global challenges in plastic waste management, where current recycling rates remain low due to performance loss, contamination, and the difficulty of processing mixed plastics. By enabling the effective reuse of incompatible plastic mixtures, Seauciel’s process offers a solution to reduce environmental impact, including landfill waste and marine pollution. The company collaborates with academic institutions, such as the Worcester Polytechnic Institute and the University of Akron, to refine and scale its technical processes. Its work is focused on making the resulting recycled plastic competitive with virgin materials in terms of quality, price, and sustainability, positioning the firm as a contributor to material science innovation and industrial sustainability.