(under subclass 515.1) Subject matter wherein the means includes devices containing neutron absorption material.
(1) Note. A composition of neutron absorption material made into a structural element shall be classified here.
SEE OR SEARCH CLASS
252, Compositions,
478, for compositions used as neutron shielding material.
376, Induced Nuclear Reactions: Processes, Systems, and Elements,
219+, for nuclear reactors having moderator structure including neutron moderators.
428, Stock Material or Miscellaneous Articles, appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet which may have the function of absorbing neutrons. 523, Synthetic Resins or Natural Rubbers, for organic compounds used as neutron shielding equipment, particularly
136+, for resins with filler, dyes or pigments.
554, Organic Compounds,
77, for esters containing boron type acids.
585, Chemistry of Hydrocarbon Compounds, for certain compositions containing hydrocarbons, and especially
944, for a collection of patents which disclose radiation-resistant compositions.
