Synthetic resins or natural rubbers -- part of the class 520 series

SECTION I - CLASS DEFINITION

Class 526 provides for all processes of preparing polymers from only ethylenically unsaturated monomers and for all products thereof when such products and processes are not provided in higher subclasses in the Class 260 schedule hierarchy.

In addition, Class 526 provides for certain polymerization processes which are applicable to any type of reactant or monomer.