.~> Anti-oxidants or chemical change inhibitants {2}
DEFINITION
Classification: 252/380
(under the class definition) Compositions specialized and designed for, or peculiar to, use as or in agents or
materials for preventing, inhibiting or reducing chemical or physical changes in other substances or bodies when incorporated or associated therewith, and processes of making the same, excepting compositions and processes of making them which are primarily for use as analytical, testing, or indicating compositions.
(1) Note. This subclass and indented subclasses take old compounds limited to use as preserving agents and also the combination of a preserving agent with the substance preserved where such substance is so broadly claimed as not to afford a basis of classification, e.g., "an organic substance."
(2) Note. For compositions, or processes of making them, each of which contains a main substance and an agent for inhibiting caking of granules of, chemical decomposition of, or other chemical or physical change of, the main substance, search where the main substance is classifiable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71, for compositions specialized and designed for, or peculiar to, use in heat exchanges or which are low-freezing (freezing point depressing) or high-boiling (boiling point elevating), or which are adapted to form mixtures having a lower pour-point or freezing point when mixed with other substances.
601+, for fire-proofing compositions. SEE OR SEARCH CLASS
106, Compositions: Coating or Plastic, for protective coating or impregnating compositions.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, appropriate subclasses for processes for disinfecting, deodorizing, preserving, or sterilizing.
424, Drug, Bio-Affecting and Body Treating Compositions, for a composition for repelling, inhibiting or destroying a pest such as bacteria, fungus, etc.
516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting, appropriate subclasses for subject matter relating to: colloid systems (such as sols*, emulsions, dispersions, foams, aerosols, smokes, gels, or pastes) or wetting agents (such as leveling, penetrating, or spreading); subcombination compositions of colloid systems containing at least an agent specialized and designed for or peculiar to use in making or stabilizing colloid systems; compositions and subcombination compositions specialized and designed for or peculiar to use in breaking (resolving) or inhibiting colloid systems; processes of making the compositions or
systems of the class; processes of breaking (resolving) or inhibiting colloid systems; in each instance, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art; including those instances when a composition would otherwise be proper for this subclass (380) and its indented subclasses.
