Tyre maker Continental and Turkish reinforcer specialist Kordsa have started making passenger car tyres with a new sustainable adhesive.

The two partners have been working together on this new eco-friendly dip technology since 2017.
 
The technology enables the bonding activation of textile reinforcing materials with rubber compounds without the use of resorcinol and formaldehyde in the textile dip.

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Textile reinforcing materials are widely used in tyre manufacturing, as well as in the production of mechanical rubber goods such as hoses and conveyor belts.
 
Since the first announcement of Cokoon as an open innovation technology in March 2019, it has attracted attention within the industry. Forty companies (tyre manufacturers, converters, and textile suppliers) have expressed interest in testing the material and are considering joining the licensing pool.

Twenty have already received samples. Now, all of the interested parties have been invited to join the pool and obtain free licensing in order to contribute to the development of this new green technology.

"The sampling process was a big success and exceeded our expectations. Feedback from the industry encouraged us to proceed with the integration of Cokoon into our tyres and to begin series production of the first tyres back in 2019. Expanding use of the technology in our tyre production in 2020 and in the following years is a high priority for us," said Andreas Topp, head of material and process development and industrialisation at Continental.

The technology does not require any changes in process equipment.

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