DIFF Subgroup
C08G 18/6666 Full Title
Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > characterised by the compounds used containing active hydrogen > Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen > Compounds of groups C08G18/42, C08G18/48, or C08G18/52
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.