| 525 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
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| * | 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} |
| 480 | DF | .~.~ Solid polymer or specified intermediate condensation product derived from at least one phenolic reactant and at least one aldehyde or aldehyde-type reactant or polymer therefrom {10} |
| 481 |  | .~.~.~ Mixed with reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom {6} |
| 482 | DF | .~.~.~.~> Phenolic-aldehyde or phenolic-aldehyde-type reaction product modified with 1,2-monoepoxide prior to mixing with reactant containing more than one 1,2 epoxy group per mole or polymer derived therefrom {2} |
| 485 | DF | .~.~.~.~> With specified material {1} |
| 487 | DF | .~.~.~.~> With silicon-containing reactant or polymer derived therefrom |
| 488 | DF | .~.~.~.~> With carboxylic acid or derivative reactant or polymer derived therefrom |
| 489 | DF | .~.~.~.~> With additional aldehyde or aldehyde-type reactant or polymer therefrom which is distinct from aldehyde or aldehyde-type reactant used in forming solid polymer or SICP; or with nitrogen-containing reactant |
| 490 | DF | .~.~.~.~> Wherein phenolic-aldehyde or phenolic-aldehyde-type solid polymer or SICP contains nitrogen or ethylenic unsaturation |