Non-Isocyanate Polyurethane Products and Methods of Making the Same

Tao Dong (Inventor), Philip Pienkos (Inventor)

Research output: Patent


The present disclosure relates to a method for making a non-isocyanate polyurethane (NIPU) foam, where the method includes decomposing a blowing agent having at least one of an amine carbamate salt and/or an amine bicarbonate salt to form a diamine and CO.sub.2 in the presence of a molecule comprising a plurality of cyclic carbonate functional groups and reacting the diamine with at least a portion of the cyclic carbonate functional groups to form the NIPU foam. In some embodiments of the present disclosure, the reacting and the decomposing may occur at substantially the same rate.
Original languageAmerican English
Patent number11,820,876 B2
Filing date21/11/23
StatePublished - 2023

NREL Publication Number

  • NREL/PT-5100-88190


  • amine carbamate salt
  • cyclic carbonate
  • non-isocyanate polyurethane (NIPU) foam


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