(under the class definition) Compositions which contain substances for, or peculiar to, use in chemically absorbing or binding extraneous metals, ammonia, alkalis, or other extraneous bases, or in making substances for such use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
179, for base exchange compositions for water softening or scale inhibiting.
SEE OR SEARCH CLASS
210, Liquid Purification or Separation,
696+, for liquid treating processes which prevent, decrease or delay precipitation.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes, appropriate subclasses for setting bath compositions disclosed to be solely for the purpose of precipitation or formation of articles, e.g., filaments from a spinning or article forming composition extruded or spun thereinto, for example, see 183+,.
423, Chemistry of Inorganic Compounds,
700+, for zeolites and appropriate subclasses for aluminosilicate compounds having base-exchange capabilities.
510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions, appropriate subclasses, particularly
253, 255, 257, 258+, 269+, etc., for cleaning compositions containing an acid component.
521, Synthetic Resins or Natural Rubbers,
25+, for solid polymeric ion-exchange materials, processes of preparing or regenerating them.
