DIFF Subgroup
C08G 18/717 Full Title
Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > characterised by the isocyanates or isothiocyanates used > Monoisocyanates or monoisothiocyanates
C08G 18/717 Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > characterised by the isocyanates or isothiocyanates used > Monoisocyanates or monoisothiocyanates