Chemicals for industrial purposes; chemical additives for use as binding agents in plastics; compatibilizing chemical additives to improve polymer blending; chemicals for dispersing organic and inorganic materials in plastics; chemical additives to apply as chain extender for polycondensates; chemically modified plastic and clay composition for use in the manufacture of plastics; polyamides; styrene; anhydrides; methacrylic acid; surface active compounds for general use in the industrial arts...