| 528 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
|
| * | DD | SYNTHETIC RESINS (Class 520, Subclass 1) {23} |
| 86 | DF | .~ FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE {15} |
| 212 | DF | .~.~ Phenolic reactant contains a single phenolic -OH group or a single inorganic phenolate thereof {2} |
| 214 | DF | .~.~.~ Polymerizing in the presence of a specified material other than a reactant and other than Group IA or Group IIA material as sole metal atom {2} |
| 215 |  | .~.~.~.~ Material is a nitrogen-containing compound {1} |
| 216 | DF | .~.~.~.~.~> Nitrogen-containing material is a heterocyclic compound containing at least one nitrogen atom as a ring member |