With Polycarboxylic Acid Or Derivative As Reactant Patents (Class 528/176)
- Nitrogen reactant having at least one amino-nitrogen atom contains a carboxylic acid group or is a derivative thereof (Class 528/184)
- Phenolic reactant contains at least two aryl rings and two diverse phenolic to oxygen bonds (Class 528/185)
- Nitrogen reactant contains at least three amino-nitrogen atoms bonded to one or more carbon atoms (Class 528/186)
- Reactant contains three or more carboxylic acid groups or is derivative thereof (Class 528/188)