Research and Development

For the polymer and plastics industry

Talc has long been one of the most important fillers for adjusting the thermal and mechanical properties of plastics and is remarkable in many aspects.

  • High aspect ratio
  • Low water absorption and hydrophobic character
  • high surface area and particle fineness

When used in paints and coatings, the distribution and wetting of the pigment and filler particles with the low viscosity binder can be controlled relatively easily by increasing the mixing time and agitator speed over a wide range.

Changing the formulation by adding auxiliaries is also done much easier than in the production of plastic parts by injection molding or extrusion.

The full potential of this filler can therefore rarely utilized in the manufacturing of plastic parts. High viscosities and limited shear rates in the extruder, as well as high temperatures and limited dwell times, make it difficult to process the polymers and the functional filler talc.

In order to minimize these procedural difficulties, Nobelmin GmbH has launched a number of development and research projects.

The main approach is to further improve the functionality of Nobelmin talc products and the basis of MicroNobelizing by:

  • The continued optimization of the process of delaminating micronization of talc to further reduce the particle size and to further improve the aspect ratio. The aim here is to achieve the highest functionalities and optimum weight savings with reduced input quantity and lowest weight input, thanks to the high surface area and the anisotropic structures.
  • The chemical-physical modification of the particle surface and the associated optimization of the interaction and adsorption of the polymers at the filler-polymer interface. This interaction enhances the mechanical properties of the filled plastic, as well as, for example, the so-called crystal nucleation.
  • An optimal surface leads to a very high adsorption strength, which does not lead to adhesion failure, or rather not as quickly, even when stretched. The detachment of the polymer from the filler surface and the internal destruction of the composite (comparable with a foam, which has much poorer strength and in whose bubbles the filler particles are located) is prevented.

Optimize product qualities

NOBELMIN talc is known for its nucleating effect in conventional thermoplastics such as polypropylene. Talc particles modify the polymer morphology during the crystallization phase by increasing the number and type of nuclei in the polymer melt.

Micronized MinTalc products from NOBELMIN GmbH are highly efficient nucleating and reinforcing agents and in this way increase stiffness and crystallization. This behavior is given if the lamellar structure is maintained during the micronization process.

Experts collaborate with experts

Our development projects are carried out in cooperation with universities and internationally active development partners. In this way, practical experience is supplemented by scientific investigations and methods.

As NOBELMIN GmbH, we also carry out publicly funded research projects independently or as a research partner (e.g. with the Institute of Polymer Research, a well-known partner of German industry).

Outsourcing R&D ensures that the company remains at the cutting edge of technology and has a high degree of flexibility when it comes to rapidly changing research topics. At the same time, unnecessary infrastructure costs are avoided, so that the competitive disadvantages for Nobelmin GmbH as a medium-sized company can be reduced.

In the area of marketing and product development, Nobelmin also makes use of its international network and cooperation with a globally active, renowned insider in the industrial minerals sector.

Bioplastics and future projects

The environmental awareness of the population (also due to the millions of tons of plastic waste produced annually) is constantly increasing. Now the plastics industry is looking for ways to optimize its ecological footprint by developing environmentally friendly bioplastics.

Bioplastics such as polylactic acid (PLA), cellulose, starch, polyhydroxyalkanoates (PHA) and polybutylene succinate (PBS), or blends and modifications of these polymers, are possible avenues for this desired transition in materials.

These polymers are made from renewable raw materials and, without the persistence of polymers made from petroleum (long-term environmental durability), are much more environmentally friendly due to their faster biodegradability.

Used on a large scale, bioplastics could significantly reduce carbon emissions and the carbon footprint of the chemical industry.


Our NOBELMIN in-house laboratory, fitted with the most modern equipment, permanently ensures development and production monitoring.

Our team of R&D experts aims to embrace innovative developments as technology advances and provide technical support to a global customer base. Chemists and engineers work together in various disciplines to drive new products, new processes, and new applications.

Do you have questions about our products?
Our product data sheets provide even more information.
Duesseldorf 2022

Meet us at the K 2022 in Düsseldorf!

We are expecting you in Hall 7.2, E14 and are looking forward to your visit at our booth!