| 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} |
| 55 | DF | .~.~ At least one solid polymer derived from ethylenic reactants only {25} |
| 242 | DF | .~.~.~ Polymer derived from ethylenic reactants only mixed with ethylenic reactant {21} |
| 244 |  | .~.~.~.~ Contacting a solid polymer derived from ethylenic reactants only with an ethylenic reactant in the presence of a specified material {14} |
| 245 | DF | .~.~.~.~.~> Specified material contains transition metal atom {2} |
| 248 | DF | .~.~.~.~.~> Specified material contains a carbon or hydrogen atom bonded directly to a metal atom {2} |
| 251 | DF | .~.~.~.~.~> Specified material contains a boron atom |
| 252 | DF | .~.~.~.~.~> Specified material is a carbohydrate or is a solid synthetic polymer not intended to be in the final product {1} |
| 254 | DF | .~.~.~.~.~> Specified material contains silicon atom |
| 255 | DF | .~.~.~.~.~> Specified material contains a phosphorus atom |
| 256 | DF | .~.~.~.~.~> Specified material contains a heterocyclic ring |
| 257 | DF | .~.~.~.~.~> Specified material contains a ketone group |
| 258 | DF | .~.~.~.~.~> Specified material contains an ether group |
| 259 | DF | .~.~.~.~.~> Specified material contains an organic nitrogen compound {1} |
| 261 | DF | .~.~.~.~.~> Specified material contains an organic sulfur compound |
| 262 | DF | .~.~.~.~.~> Specified material contains a carboxylic acid or derivative |
| 263 | DF | .~.~.~.~.~> Specified material contains a peroxy group, i.e., -O-O- {2} |
| 266 | DF | .~.~.~.~.~> Specified material contains an organic chalcogen compound |