RPU - TECHNOLOGY

Key features of RPU technology

Feasible to get GRS certificate

95% Purity

95% Recovery rate

1/15 CAPEX

ALL Feedstock flexibility

-50% GHGs Reduction

Our technology vs. traditional recycling approaches

Depolymerization Material Separation Patents & Certifications

RPU Depolymerization
Technology

We specialize in polyurethane depolymerization using a low-temperature catalytic process (glycolysis).
This technology allows for the efficient production of high-purity monomers and building blocks with low-cost catalysts,
all within a short reaction time of 1 to 3 hours, ensuring both cost-effectiveness and sustainability.

Catalytic depolymerization of separated polymer (PU) at a low-T (150°C)

Low-cost catalysts

High purity monomer and building blocks products

Short reaction time (1~3 h)

POLYURETHANE

Why is recycling not as easy as it should be?

Polyurethane is a thermoset

that forms a crosslinked 3D network;
once cured, it cannot be remelted, making mechanical recycling impossible

Crosslinked 3D network

Thermoplastics

Thermoplastics can be remelted and
reprocessed multiple times through heat.

Thermosets

Once cured, thermosets
do not melt upon reheating but instead deform or char.

If it doesn’t melt,
the structure must be deconstructed.

A new approach is needed to selectively break bonds
at low temperatures and recover original raw materials.

Process of Polyurethane Depolymerization

Polyurethane

Crushing

Depolymerization

Purification

Crushing REPU-POL

Under low-temperature conditions,
bonds are selectively cleaved to recover reusable raw materials.

Flexible PU

Mattress

Car Seat

Footwear

Rigid PU

Refrigerator Insulation

LNG Carrier Insulation

Pre-insulated Pipe

RPU Material Separation
Technology

Our technology uses a low-cost organic solvent to selectively dissolve polyurethane (PU) and nylon, while polyester remains solid.
High-purity nylon crystals are obtained through recrystallization,
enabling efficient recycling of synthetic fibers and composites in an eco-friendly and cost-effective way.

Inexpensive organic solvent is utilized to adjust the solubility of the polymers in textile blends, mixed plastic wastes

PU and nylon are completely dissolved in the liquid solution, while polyester remains as a solid

Pure nylon granules are obtained by recrystallization

How does it work