Jukka Seppälä (Inventor), Steven Spoljaric (Inventor), Phan Huy Nguyen (Inventor), Tomi Nyman (Inventor), Perttu Koskinen (Inventor)

Research output: Patent


The present invention relates to the preparation of novel sulphur-containing polyamides from renewable sources, and methods for producing the same. The production method involves the preparation of sulphur-containing functional monomers, which can subsequently undergo polycondensa- tion to from either AB- or AABB-type sulphur-containing polyamides. Furthermore, these novel polyamides display superior water barrier/adsorption, better retention of physical properties at elevated temperature (≥Tg) and easier processability and polyolefin-compatibility than conventional polyamides. Potential applications for these novel polyamides include high-end electronic devices, organic light- emitting diode devices, components for charge-coupled devices (CCDs) and image sensors (CISs), films and coatings, food packaging films, furniture, appliances, sports equipment, consumer goods, wire and cable, and automotive components.

Original languageEnglish
Patent numberWO2018046801
IPCC08G 69/ 42 A I
Priority date08/09/2016
Publication statusPublished - 15 Mar 2018
MoE publication typeH1 Granted patent

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    Seppälä, J., Spoljaric, S., Nguyen, P. H., Nyman, T., & Koskinen, P. (2018). IPC No. C08G 69/ 42 A I. SULPHUR-CONTAINING POLYAMIDES AND METHODS FOR PRODUCING THE SAME. (Patent No. WO2018046801).