DIFF Subgroup
C08G 18/8003 Full Title
Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > characterised by the isocyanates or isothiocyanates used > Polyisocyanates or polyisothiocyanates > Masked polyisocyanates
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.