Chemical products for the plastics and reprographics industries, namely polyvinyl acetate and polyvinyl acetate copolymers for providing improved viscosity, flowability and thickening of plastic resins, improved surface quality, durability and reduced shrinkage in plastic composites, improved viscosity, flowability and adhesion of adhesives and coatings, and improved viscosity and adhesion of printing inks; chemicals used in industry, namely polyvinyl alcohols and partially hydrolysed polyvin...