| 528 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
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| * |  | SYNTHETIC RESINS (Class 520, Subclass 1) {23} |
| 1 | DF | .~> FROM PLANT MATERIAL OF UNKNOWN CONSTITUTION {2} |
| 4 | DF | .~> FROM BORON REACTANT HAVING AT LEAST ONE BORON TO HYDROGEN OR BORON TO CARBON BOND {4} |
| 9 | DF | .~> FROM HEAVY METAL OR ALUMINUM REACTANT HAVING AT LEAST ONE HYDROGEN-TO-HEAVY METAL OR -ALUMINUM BOND OR AT LEAST ONE CARBON-TO-HEAVY METAL OR -ALUMINUM BOND |
| 10 | DF | .~> FROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BOND {12} |
| 44 | DF | .~> FROM REACTANT HAVING AT LEAST ONE -N=C=X GROUP (WHEREIN X IS A CHALCOGEN ATOM) AS WELL AS PRECURSORS THEREOF, E.G., BLOCKED ISOCYANATE, ETC. {17} |
| 86 | DF | .~> FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE {15} |
| 220 | DF | .~> FROM KETONE OR KETENE REACTANT {4} |
| 230 | DF | .~> FROM ALDEHYDE OR DERIVATIVE THEREOF AS REACTANT {12} |
| 271 | DF | .~> FROM CARBOXYLIC ACID OR DERIVATIVE THEREOF {10} |
| 367 | DF | .~> FROM REACTANT HAVING A NITROGEN ATOM DIRECTLY BONDED TO THE CARBON ATOM OF A CARBONYL GROUP, I.E., N-C(=O)- {2} |
| 370 | DF | .~> FROM REACTANT HAVING A HALOGEN ATOM OR OXYGEN SINGLE BONDED TO A CARBONYL GROUP, E.G., HALO-C(=O)-, -O-C(=O)-O, ETC. {2} |
| 373 | DF | .~> FROM SULFUR-CONTAINING REACTANT {5} |
| 392 | DF | .~> POLYMER OF AN ETHYLENICALLY UNSATURATED REACTANT WITH A SATURATED REACTANT {1} |
| 394 | DF | .~> FROM BORON-CONTAINING REACTANT |
| 395 | DF | .~> FROM ALUMINUM- OR HEAVY METAL-CONTAINING REACTANT |
| 396 | DF | .~> FROM HYDROCARBON REACTANT |
| 397 | DF | .~> FROM HALOGENATED HYDROCARBON REACTANT |
| 398 | DF | .~> FROM PHOSPHORUS-CONTAINING REACTANT {2} |
| 401 | DF | .~> FROM FLUORINE-CONTAINING REACTANT {1} |
| 403 | DF | .~> FROM HETEROCYCLIC REACTANT CONTAINING AS RING ATOMS OXYGEN, SELENIUM OR TELLURIUM, E.G., EPOXY, ETC. {7} |
| 422 | DF | .~> NITROGEN-CONTAINING REACTANT {1} |
| 425 | DF | .~> FROM ORGANIC OXYGEN-CONTAINING REACTANT |
| 480 | DF | .~> TREATING POLYMER CONTAINING MATERIAL OR TREATING A SOLID POLYMER OR A RESINIFIABLE INTERMEDIATE CONDENSATION PRODUCT {14} |