Nordmann News & Events News CO2NVERGE®: innovative CO2-based polycarbonate polyols
10 June 2024

CO2NVERGE®: innovative CO2-based polycarbonate polyols

Innovative CO2-containing CO2NVERGE® polyols produced by Nordmann partner Aether Industries  - as long term exclusive toll producer and nowadays license holder from Aramco  - are high-performance polyols. They provide the unique combination of improved performance AND sustainability. 


The CO2NVERGE® family of polyols is characterized by a perfectly alternating polypropylene carbonate structure and contains up to 40wt% carbon dioxide in the polymer. By incorporating CO2 into the polymer, these polyols deliver up to 20-50% lower GWI (Global Warming Impact) when compared to benchmark petroleum-based polyols. The unique polymer structure results in higher carbonate density compared to traditional polycarbonate polyols. The structure also unlocks performance advantages while maximizing the CO2 capture in a formulation.

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General applications

CO2NVERGE® formulated products are shown to deliver very high strength adhesives on a wide variety of substrates, high chemical and moisture resistance, and extremely durable coatings making them outstanding choices for the most demanding coating, adhesive, sealant and elastomer applications.

Conctact us for more information: 

Henning Schild
Henning Schild
Business Manager | Adhesives & Sealants
Nordmann, Rassmann GmbH

Use in polyurethane adhesives

CO2NVERGE® polyols are used in polyurethane adhesives applications and exhibit outstanding lap shear strength compared with conventional polyether and polyester based polyurethanes. CO2NVERGE® polyols exhibit very high strength adhesion to a variety of substrates, including aluminum, polycarbonate, polyvinyl chloride and wood.

In addition, the unique CO2NVERGE® structure provides excellent hydrolytic resistance in water immersion tests. CO2NVERGE® polyols retain 100% of their mechanical properties for 90 days in water at 70°C. The combination of these properties makes CO2NVERGE® polyols suitable for applications with demanding environmental stability requirements, such as textile and footwear bonding.

Different Grades

Currently, CO2NVERGE® polyols are available in two grades: CPX2012-112 and CPX2520-56. CPX2012-112 is a high-viscosity, 40 weight% CO2 polycarbonate polyol suitable for hot-melt applications. CPX2520-56 is a 20 weight % CO2 polycarbonate/polyether block copolymer polyol that is used in applications requiring lower viscosity. Combining 2520-56 and 2012-112 allows formulators the ability to fine-tune the polyurethane properties, the carbon dioxide content of a formulation, and viscosity. Combining the two products in a formulation has been shown to deliver unique and unexpected performance as compared to formulating with one product alone.


Nordmann distributes CO2NVERGE® polyols in Germany.