Plastics recycling: replacing raw materials with made-to-measure recompounds
High-quality recyclable plastics to customer specifications: Interseroh’s award-winning “Recycled-Resource” process closes the waste plastic loop – conserving valuable resources and protecting the environment.

Experts for closed-loop resource recycling: our innovative Recycled-Resource process has perfected the compounding of waste plastics. At our plastic reprocessing plants – in Eisenhüttenstadt in Brandenburg, for example – we use waste packaging and production scrap to manufacture new, market-quality recycled plastic materials.
Additionally, we combine our research and development activities in the field of plastics recycling in our centre of competence in Maribor, Slovenia. In March 2020 we received the official international accreditation. This makes our centre of competence the only recognized research institution in the EU specializing in the development and analysis of recycled plastics. It thus sets standards throughout Europe in the implementation of uniform quality standards.
Interseroh recycled plastics: high-quality and customer-specific solutions
Recythen and Procyclen – two strong recycled plastics

We source the raw materials for our two recycled plastic products from domestic-quality waste collection, which mostly consists of polyethylene (PE) and polypropylene (PP) packaging. Our granulate, Recythen, can be used for manufacturing products such as cable reels, garden furniture, drainage pipes and cable conduits.

Procyclen is an award-winning, customisable “recompound”. By altering its formulation, Procyclen can be matched to customers’ exact requirements in terms of fluidity, stability, UV/thermal resistance and colouration. Just like a new, petroleum-based raw material, Procyclen is able to meet the same kinds of rigorous requirements for new products or packaging, and can also be used in injection moulding or extrusion processes.
Manufacturers using Recythen or Procyclen in their plastics products can apply for the “Blue Angel” eco-label – and thus acquire a key differentiator.
Customer benefits from Recycled Resource:
Certified, reproducible material quality
Exact documentation of all material data
Upcycling and full compliance with the REACH Regulation
Technical support for production
Planning security and security of supply
An effective contribution to conserving resources and the environment
Saving the environment with Recythen and Procyclen
With recycled plastics from Interseroh, you help conserve resources while also reducing greenhouse gas emissions: as shown in a recent study by Fraunhofer Institute UMSICHT, based on data from 2020, Procyclen and Recythen improve your environmental footprint.*

If Recythen is used instead of primary plastic made from crude oil, 1,100 kg of greenhouse gases are saved per tonne – a 61 per cent reduction in climate-damaging emissions. Consumption of primary energy also falls by 22,254 kilowatt hours per tonne – equivalent to 14,836 loads of laundry.**

If Procyclen is used, 1,002 kg of greenhouse gases are saved per tonne (around 56 percent***) and primary energy savings are 21,199 kWh – around 14,133 loads of laundry.
* A recent study by the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT compared the production of primary granulates from crude oil with that of Recythen and Procyclen from recycled materials with respect to their primary energy usage and greenhouse gas balance. The calculation is based on the life cycle assessment environmental management standards IS0 14040 and 14044. The technologies compared reflected the latest state of the art. All results relate to a tonne of granulate.
** Assuming a consumption of 0.50 kWh per wash. This corresponds to energy efficiency class "A".
*** The slightly lower savings with Procyclen are a result of the additional materials used.
Increasingly eco-efficient and cost-effective
Impressive figures – and we are working hard on further improvements to these positive environmental effects: with the latest generation of Procyclen, greenhouse gas savings can now be as high as 50 per cent, since manufacturing now takes place in just a single process step and also requires less energy. This conserves resources and makes the process even more cost-effective.
Technological Innovation
This all ist possible due to the innovtive cascade extrusion system COREMA®, which allows the manufacturing of customised recycling compounds for exceptionally high-quality applications in just one processing step. And this innovation is already award-winning: In April 2019, the PRSE Award in the category “Recycling Machinery Innovation of the Year” was given to the environmental services provider Interseroh and the technology manufacturer EREMA.

Award-winning performance
Interseroh’s plastics recycling has not only attracted an impressive and steadily growing number of manufacturers and dealers: our Recycled-Resource process and our Procyclen recycled plastic are already multiple award winners.
Plastics Recycling Awards Europe 2020
- Nominated in the category “Household & Leisure Product of the Year” for FALK Chair together with HOUE Design ApS
Plastics Recycling Awards Europe 2018
Nominated in the category “Best Recycled Plastic Packaging Product” for reusable mail system "memo Box" from the memo AG
- Nominated in the category “Plastics Recycling Ambassador of the Year ” – Individuals who have made an outstanding contribution to plastics recycling – is Dr. Manica Ulcnik-Krump, head of BU Recycled-Resource
GreenTec Awards 2013
Nominated in the “Recycling” category for the project Recycled-Resource
INDUSTRIEPREIS 2013
Award winner for Recycled-Resource and Procyclen in the “Services” category (as part of the “SME Initiative”)
EPRO Best Recycled Plastic Product 2012
- “Best Recycled End Consumer Product” award for Ecolife from Curver, a product range that is manufactured entirely from Procyclen
BHB Customer Service Prize 2012
- Special sustainability prize awarded to the company for developing the Recycled-Resource process
Trusting partners of Interseroh
Our expert for
Plastics recycling

Dr. Manica Ulcnik-Krump
Head of Sales Recycled-Resource
Frequent questions of our customers
- How are the recycled plastics Recythen and Procyclen made?
We create our regranulates by recycling end-of-life packaging from household collections. They are also known as “post-consumer” regranulates.
- Which processes are Recythen and Procyclen designed for?
Our polypropylene (PP) is suitable for use in injection moulding, while our HD polyethylene (HDPE) is used in extrusion applications.
- Are recythen and procyclen compatible with “Blue Angel” applications?
Interseroh is EuCertPlast-certified, so Blue Angel applications can be made for products manufactured from our regranulates.
- What advantages do post-consumer recyclates have compared to post-industrial recyclates?
Our regranulates are manufactured from packaging waste and are continuously available in large quantities. Since businesses are now increasingly moving to waste-free production, this is shrinking the volume of industrial production waste. Accordingly, post-industrial waste is available in increasingly smaller quantities. We have specialised in providing consistent product quality in large quantities.
Download Section
- TDS_recythen_R__PO_AGG_EN.pdf (PDF 558 KB)
- TDS_procyclen_R__PP_50_M12_C05_EN.pdf (PDF 406 KB)
- TDS_recythen_R__HDPE_EN.pdf (PDF 559 KB)
- TDS_recythen_R__PP_10_EN.pdf (PDF 558 KB)
- TDS_procyclen_R__PP_30_M12_C05_EN.pdf (PDF 406 KB)
- TDS_procyclen_R__PP_30_M14_C04_EN.pdf (PDF 406 KB)
- TDS_procyclen_R__PP_06_M60_C08_GF30_EN.pdf (PDF 406 KB)
- TDS_procyclen_R__PP_11_M11_C07_EN.pdf (PDF 406 KB)
- TDS_procyclen_R__PP_10_M10_C09_EN.pdf (PDF 406 KB)
- Katalog_Kompetenzzentrum_DE_EN.pdf (PDF 378 KB)