| 528 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
|
| * | DD | SYNTHETIC RESINS (Class 520, Subclass 1) {23} |
| 271 | DF | .~ FROM CARBOXYLIC ACID OR DERIVATIVE THEREOF {10} |
| 310 |  | .~.~ From imide- or lactam-containing compound, or from an amino-nitrogen containing carboxylic acid, or derivative of an amino-nitrogen-containing carboxylic acid {9} |
| 312 | DF | .~.~.~> Polymerizing in the presence of a specified material other than reactant {8} |
| 321 | DF | .~.~.~> Phosphorus- or sulfur-containing reactant |
| 322 | DF | .~.~.~> Imide-containing reactant |
| 323 | DF | .~.~.~> Lactam-containing reactant {3} |
| 327 | DF | .~.~.~> Heterocyclic reactant or a reactant which contains a nitrogen atom bonded directly to another nitrogen atom |
| 328 | DF | .~.~.~> From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc. |
| 329.1 | DF | .~.~.~> With two or more reactants one of which is a carboxylic acid or derivative thereof which is devoid of an amine group and one reactant which is a polyamine which is devoid of a carboxylic acid group or carboxylic acid derivative group |
| 330 | DF | .~.~.~> Cycloaliphatic ring-containing reactant |
| 331 | DF | .~.~.~> Aryl-containing reactant |