(under subclass 688) Subject matter in which the organic material contains (a) a natural or synthetic elastic polymer commonly known as rubber (e.g., caoutchouc, neoprene, etc.) or (b) a dispersion or emulsion of a natural or synthetic elastic polymer in water commonly known as latex.
SEE OR SEARCH CLASS
516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,
53+, for colloid systems of aqueous continuous phase with discontinuous phase primarily organic liquid (such as latex emulsions, or dispersions) or agents for such systems or making or stabilizing such systems or agents, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.
