| 528 / | HD | SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES |
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| * | DD | SYNTHETIC RESINS (Class 520, Subclass 1) {23} |
| 86 | DF | .~ FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE {15} |
| 87 |  | .~.~ From 1,2-epoxy-containing phenolic reactant or with 1,2-epoxy-containing reactant {12} |
| 88 | DF | .~.~.~> Polymerizing in the presence of a specified material other than reactant {6} |
| 96 | DF | .~.~.~> Phenolic reactant contains a heterocyclic group other than a 1,2-epoxy group per se |
| 97 | DF | .~.~.~> Phenolic reactant contains a fused-or bridged-ring other than as a 1,2 epoxy group fused to carbocyclic or aromatic ring |
| 98 | DF | .~.~.~> Phenolic reactant contains at least three distinct aromatic or carbocyclic rings or mixtures thereof |
| 99 | DF | .~.~.~> Phenolic reactant contains at least one nitrogen, phosphorus, or sulfur atom |
| 100 | DF | .~.~.~> Phenolic reactant contains a carboxylic acid or carboxylic acid derivative thereof |
| 101 | DF | .~.~.~> Phenolic reactant contains ethylenic unsaturation or contains a 1,2-epoxy group fused to a carbocyclic ring |
| 102 | DF | .~.~.~> Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the aryl-oxygen group |
| 103 | DF | .~.~.~> Two or more 1,2-epoxy reactants {1} |
| 104 | DF | .~.~.~> Two or more phenolic reactants |
| 105 | DF | .~.~.~> Phenolic reactant contains only one, 1,2-epoxy group |
| 106 | DF | .~.~.~> With at least one nonepoxy or nonphenolic reactant {9} |