CPC Subgroup
C08G 18/84 by aldehydes
Full Title
Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > Chemically modified polymers > by aldehydes
C08G 18/84 Polymeric products of isocyanates or isothiocyanates > with compounds having active hydrogen > Chemically modified polymers > by aldehydes