Helsingin Yliopisto

Teknologian Tutkimuskeskus Vtt Oy

Aalto University Foundation Sr

Metsa Fibre Oy

Ilkka Kilpeläinen

Michael Hummel

Herbert Sixta

Arno Parviainen

Alistair King

Jussi Helminen

Kadvaël Le Boulch

Alistair Wt King

Sanna Hellsten

Lauri Hauru

Antti Korpela

Anne Michud

Hannes Orelma

Olli Suontausta

Alexander Deutschle

According to an example aspect of the present invention, there is provided a method of joining objects of hydrophilic polymeric biomaterials. In the method, an ionic liquid is applied onto the surfaces of the objects; the surfaces are pressed together; and the ionic liquid is removed. The method produces a product that can consist to 100% of biomaterial, with no synthetic polymer or chemicals remaining in the product.

Method of joining polymeric biomaterials

According to an example aspect of the present invention, there is provided A process for making a cellulose fibre or film comprising the steps of dissolving pulp in an ionic liquid containing a cationic 1,5,7-triazabicyclo[4.4.0]dec-5-enium [TBDH]+ moiety and an anion selected from the group according to Formula a), Formula b) and Formula c), wherein each of R, R, R, R, R, R, R, Rand Ris H or an organyl radical and Xis selected from the group consisting of halides, pseudohalides, carboxylates, alkyl sulphite, alkyl sulphate, dialkylphosphite, dialkyl phosphate, dialkyl phosphonites and dialkyl phosphonates, to provide a spinning dope, extruding the spinning dope through a spinneret to form one or more filaments, and a step selected from the group consisting of spinning cellulose fibres from the solution, and extruding a cellulose film from the solution.

Process for making cellulose fibre or film

The present invention relates to a method of producing a bicyclic guanidine and its derivatives. In particular, the present invention relates to a method of producing triazabicyclodecene (TBD) and its derivatives, particularly alkyl derivatives, such as methyl triazabicyclodecene (MTBD), and MTBD-derived ionic liquids. The invention also relates to the use of said compounds in cellulose dissolution and subsequent processing.

Method for preparing a bicyclic guanidine and its derivatives

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Helsingin Yliopisto, Finland

Ilkka Kilpeläinen