| 526 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
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| * | DD | SYNTHETIC RESINS (Class 520, Subclass 1) {8} |
| 72 | DF | .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43} |
| 89 | DF | .~.~ Polymerizing in the presence of a specified material other than monomer {28} |
| 90 | DF | .~.~.~ Material contains transition metal or compound thereof {15} |
| 123.1 | DF | .~.~.~.~ Material contains compound of Group IA (Li, Na, K, Rb, Cs, Fr) or Group IIA (Be, Mg, Ca, Sr, Ba, Ra) metal wherein IA or IIA metal is not bonded to hydrogen or to carbon {1} |
| 124.1 | DF | .~.~.~.~.~ Contains nontransition elemental metal, hydride thereof, or carbon to non-transition metal atom bond {1} |
| 124.2 | DF | .~.~.~.~.~.~ Contains a magnesium compound as the Group IIA metal compound {1} |
| 124.3 | DF | .~.~.~.~.~.~.~ Contains at least one additional specified material {6} |
| 124.9 |  | .~.~.~.~.~.~.~.~ Contains organic non-metal containing B, Si, N, P, or chalcogen material {5} |
| 125.1 | DF | .~.~.~.~.~.~.~>.~.~ Contains organic Al compound containing no H to aluminum or C to aluminum bonds |
| 125.2 | DF | .~.~.~.~.~.~.~>.~.~ Contains compound containing only C, H and halogen atoms or only C and halogen atoms |
| 125.3 | DF | .~.~.~.~.~.~.~>.~.~ Contains organic non-metal containing B or Si material |
| 125.4 | DF | .~.~.~.~.~.~.~>.~.~ Contains at least one inorganic material having no H to metal bonds {1} |
| 125.6 | DF | .~.~.~.~.~.~.~>.~.~ Contains at least two organic non-metal containing N, P, or chalcogen materials |