| 525 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
|
| * | DD | SYNTHETIC RESINS (Class 520, Subclass 1) {4} |
| 50 | DF | .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32} |
| 55 | DF | .~.~ At least one solid polymer derived from ethylenic reactants only {25} |
| 374 |  | .~.~.~ Chemical treating agent is a nitrogen-containing compound {5} |
| 375 | DF | .~.~.~.~> Contains nitrogen atom in a heterocyclic ring |
| 376 | DF | .~.~.~.~> Nitrogen-containing compound has at least one nitrogen-to-nitrogen bond |
| 377 | DF | .~.~.~.~> Nitrogen-containing compound contains at least one nitrile or isonitrile group; or a nitrogen-to-oxygen bond which is other than as an amine or ammonium salt |
| 378 | DF | .~.~.~.~> Ammonia, ammonium hydroxide, or salts thereof |
| 379 | DF | .~.~.~.~> Organic amine {3} |