(under subclass 1) Subject matter under Class 520, ... involving polymers derived from a halogenated hydro-carbon reactant or process of polymerizing; polymerizable compositions containing as a reactant a halogenated hydrocarbon reactant or processes of preparing.
(1) Note. Included as halogenated hydro- carbons for purposes of this subclass are those reactants wherein all of the hydro-carbon atoms have been replaced by halogen atoms.
SEE OR SEARCH THIS CLASS, SUBCLASS:
480+, for processes of preparing a polymer not involving a chemical modification of the polymer, by the addition of a material thereto, and for chemically modifying material other
than the polymer. Subclasses 480+ also provide for processes of admixing with a broadly claimed nonreactant material.
