| 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} |
| 286 | | .~.~ From S-containing monomer {3} |
| 287 | DF | .~.~.~> From monomer containing three or more oxygen atoms bonded to a single sulfur atom, e.g., sulfonate, etc. |
| 288 | DF | .~.~.~> From sulfur monomer containing nitrogen atom |
| 289 | DF | .~.~.~> From sulfide-containing monomer |