CPC Subgroup
C08G 12/428 Full Title
Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (aminophenols C08G8/16) > of aldehydes > Chemically modified polycondensates > by etherifying
C08G 12/428 Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (aminophenols C08G8/16) > of aldehydes > Chemically modified polycondensates > by etherifying