having heteroatoms other than oxygen

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 > having hetero atoms other than oxygen

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 > having heteroatoms other than oxygen