US PATENT SUBCLASS 252 / 88.2 COMPOSITIONS FOR COATING OR IMPREGNATING A SUBSTRATE USED FOR COLLECTING FINE PARTICLES BY ADHERENCE, OR PROCESSES OF PREPARING (E.G., FOR IMPREGNATING DUSTING CLOTHS, DUST FILTERS, ETC.)
Current as of: June, 1999
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COMPOSITIONS FOR COATING OR IMPREGNATING A SUBSTRATE USED FORCOLLECTING FINE PARTICLES BY ADHERENCE, OR PROCESSES OFPREPARING (E.G., FOR IMPREGNATING DUSTING CLOTHS, DUSTFILTERS, ETC.):
(under the class definition) Compositions specialized or designed for collection of fine particles, such as dust, by adherence to a substrate coated or impregnated with the composition, such as furnace filters, or processes of preparing the compositions.
(1) Note. Processes involving the mere use of a claimed composition are included in this subclass. If no composition is claimed or significant process steps are involved in addition to such mere use, the patent is classifiable in other appropriate classes.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning, for dust cloths.
95, Gas Separation: Processes, particularly
273+, for processes of separating solid particles from gas which may include use of a particle adherent composition.
149, Explosive and Thermic Compositions or Charges, 108.4, for waste containing explosives and methods of removing their residues.
