Tapio Vehmas

Research activity per year

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2020
Method for producing oxidized lignin in kraft pulp mill
Sjögård, P., Poukka, O., Kemppainen, K., Kalliola, A., Liitiä, T., Vehmas, T. & Pehu-Lehtonen, L., 2 Aug 2020, IPC No. D21C 11/ 00 A I, Patent No. FI129846B, Priority date 1 Feb 2019, Priority No. FI20190005065
Research output: Patent › Patent
2017
Alkali-O2 hapetettu ligniini dispergointiaineena;Alkali-O2 oxiderat lignin som dispergeringsmedel
Translated title of the contribution: Alkali-O2 oxidized lignin as dispersantKalliola, A., Liitiä, T., Tamminen, T. & Vehmas, T., 7 May 2017, IPC No. C09C 3/ 10 A I, Patent No. FI20155815, Priority date 6 Nov 2015, Priority No. FI20150005815
Research output: Patent › Patent
2016
Use of oxidized lignin as a dispersant
Kalliola, A., Liitiä, T., Tamminen, T. & Vehmas, T., 25 Aug 2016, IPC No. C04B 24/ 24 A I, Patent No. US2016244364, Priority date 2 Oct 2014, Priority No. WO2014FI50754
Research output: Patent › Patent

Research output