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 longchain aliphatic polyamides, and a method of producing the same. The production method utilizes a nylon salt preparation method of controlling the stoichiometric ratio between the diamine and dicarboxylic acid, resulting in polyamides with high purity, high number average molecular weight (≥37,000 g⋅mol-1) and narrow polydispersity. Furthermore, these novel polyamides display superior water barrier/adsorption, higher number average molecular weights, better retention of physical properties at elevated temperature (≥Tg) and easier processability and polyolefin-compat- ibility than conventional polyamides. The polyamides are suitable for use in packaging films, furniture, appliances, consumer goods, wire and cable, and automotive components.

Original languageEnglish
Patent numberWO2018046800
IPCC08G 69/ 30 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/ 30 A I. POLYAMIDES AND METHOD FOR PRODUCING THE SAME. (Patent No. WO2018046800).