| 526 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
| * | 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} |
| 227 | DF | .~.~.~ Material contains peroxy group compound (-O-O-) {8} |
| 232 | DF | .~.~.~.~ Peroxide contains an aryl group {1} |
| 232.1 | | .~.~.~.~.~ Benzoyl peroxide |