US 11,753,565 B2
Method of joining polymeric biomaterials
Lauri Hauru, Helsingin yliopisto (FI); Alistair King, Helsingin yliopisto (FI); Ilkka Kilpeläinen, Helsingin yliopisto (FI); Antti Korpela, VTT (FI); and Hannes Orelma, VTT (FI)
Assigned to Teknologian tutkimuskeskus VTT Oy, Espoo (FI)
Appl. No. 16/624,918
Filed by Helsingin yliopisto, Helsingin yliopisto (FI); and Teknologian tutkimuskeskus VTT Oy, Espoo (FI)
PCT Filed Jun. 21, 2018, PCT No. PCT/FI2018/050486
§ 371(c)(1), (2) Date Dec. 20, 2019,
PCT Pub. No. WO2018/234638, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. 20175596 (FI), filed on Jun. 22, 2017.
Prior Publication US 2021/0403760 A1, Dec. 30, 2021
Int. Cl. C09J 5/06 (2006.01)
CPC C09J 5/06 (2013.01) [C09J 2400/283 (2013.01); C09J 2400/303 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of joining objects of a hydrophilic polymeric biomaterial to one another, the method comprising:
applying an ionic liquid onto at least one surface of the objects, the at least one surface comprising the hydrophilic polymeric biomaterial; and
pressing the surfaces together to join the objects together,
wherein the ionic liquid is selected from the group consisting of:
[DBUH]OAc (1,8-diazabicyclo[5.4.0]undec-7-enium acetate),
[DMPH]OAc (1,2-dimethyl-1,4,5,6-tetrahydropyrimidinium acetate),
[TMGH]OAc (1,1,3,3-tetramethylguanidium acetate),
[MTBDH]OAc (1-methyl-1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidinium acetate),
corresponding formates or propionates thereof, and mixtures thereof.