Solutions of polymeric, natural, and/or synthetic substances in organic solvents, e. g., vinyl polymers, natural rubber, synthetic rubbers of low polarity. Uses: paper, plastics, silicate-containing materials, wood.
Solutions of natural and synthetic high molecular mass substances in water, e. g., starch, dextrins, casein, cellulose ethers, water-soluble derivatives of poly(acrylic acid), poly(vinyl alcohol), poly(vinyl pyrrolidone) (adhesive sticks). Uses: paper, fiberboard. Glutins (glues of animal origin). Uses: wood, paper, fiberboard, moistenable adhesive tapes.