polyisocyanate

https://doi.org/10.1351/goldbook.15253
Polymer prepared from an isocyanate.
Note: An isocyanate monomer can be transformed into polymers belonging to various structure-based classes, such as a polyisocyanurate (by cyclopolymerization), polycarbodiimide (by decarboxylation), polyurea (by reaction with water), or polycarbamate (by reaction with a diol or a polyol).
Source:
PAC, 2009, 81, 1131. (Glossary of class names of polymers based on chemical structure and molecular architecture (IUPAC Recommendations 2009)) on page 1141 [Terms] [Paper]