6 SYNTHETIC OR CHEMICALLY PREPARED MATERIALS FOR USE AS FLOCCULANTS OR IN REMOVING OR REPLACING METALLIC OR NON-METALLIC IONS OR ACID-FORMING CONSTITUENTS FROM FLUIDS; SYNTHETIC THICKENING AGENTS AND WARP SIZING; SYNTHETIC RESINOUS MATERIALS IN SOLID FORM AND/OR IN SOLUTIONS FOR USE IN THE INDUSTRIAL ARTS; INCLUDING WATER EMULSIONS OF SYNTHETIC RESINS FOR USE IN FORMING A PROTECTIVE FILM OR FOR USE AS A BONDING AGENT ON FABRICS; PLASTICS IN THE FORM OF POWDERS, LIQUIDS OR PASTES, AND CHEMICALS FOR USE AS PLASTICIZERS; INSECTICIDES, FUNGICIDES, MITICIDES, HERBICIDES AND AGRICULTURAL DISINFECTANTS; ACRYLIC MODIFIERS FOR RIGID PVC ARTICLES SUCH AS PIPE, SHEET, PANELS, SIDING AND THE LIKE; AND CHEMICAL COMPOUNDS USED IN DYEING, BLEACHING AND TANNING LEATHER, IN THE TEXTILE AND PRINTING INDUSTRIES FOR THE PRECIPITATION OF COLOR LAKES WITH BASIC DYES, FOR STABILIZING CLAY DISPERSIONS, FOR DISPERSING PIGMENTS AND FOR PAPER-MAKING PITCH