125 years of Rhein Chemie

Know-how and High-Performance Additives Deliver Lasting Success

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The present-day Rhenogran products are currently the company’s number one sales generator. Among other things, they reduce the amount of energy required to produce rubber compounds and help improve the quality and thus the durability of rubber items.

Rhenogran CNT will be the newest addition to this ever larger range of innovative polymer-bound additives. It has been shown to facilitate handling of carbon nanotubes – a highly promising development – and the market launch is scheduled before the end of 2014.

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Constant Focus on Sustainability

Rhein Chemie was also quick to move into the plastics sector. The first antihydrolysis agents for polyurethanes were launched in the early 1970s under the brand name Stabaxol and this product, too, has benefited from ongoing optimization ever since. Available in liquid, solid and masterbatch form, the additive now protects a whole host of polymers with important technical applications – including polyurethane, TPE, TPU, PET, PA and EVA – against premature aging caused by hydrolysis.

By doing so, Stabaxol extends the service life of plastics that are susceptible to hydrolysis, especially in demanding applications such as spring elements made of cellular polyurethane for the automotive industry and screen fabrics made of PET monofilaments that are used in paper-making machines. Here, as in many other applications, Stabaxol not only helps conserve resources but also makes production more cost-efficient, for example by lengthening maintenance intervals.

Over recent decades, Stabaxol has become Rhein Chemie’s most important product for the plastics industry. It even offers a product line called BioAdimide to protect biopolymers against hydrolysis.

The lubricant experts at Rhein Chemie also make a point of using sustainable products. This started back in the 1990s with the development of complete formulations of lubricant additives based on renewable raw materials. Special additives in the current Additin portfolio are designed specifically for the formulation of biolubricants.

For example, lubricant specialists are currently working hard on a new additive package for hydraulic fluids that complies with the latest European Ecolabel guidelines. “From a very early stage, it was important to us to provide our customers with products that meet the strict requirements of national environmental labels in Europe. And this has remained a key aspect of our development right up to the present day,” states Borkowsky.