DIFF Subgroup
C08G 18/4244 Full Title
Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > characterised by the compounds used containing active hydrogen > High-molecular-weight compounds > Polycondensates having carboxylic or carbonic ester groups in the main chain
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.