In nitrile reactions or packaging film, Polymeric Acrylonitrile spurs new R & D ideas. This Du Pont polymer is both an intermediate and a resin. Polymeric acrylonitrile— the intermediate: takes part in many nitrile reactions, converting to amides, carboxy groups, esters, and amines. It can be hydrolyzed to an anionic, water-soluble poly mer which will coagulate particles or increase the viscosity of water. Polymeric acrylonitrile— the resin: can be cast from a solvent and biaxially oriented to produce a transparent, heat-resis tant film which is impermeable to oxygen and other gases, suggest ing its utility as a protective food wrap* This strong, durable film is also resistant to acids, ultraviolet light, brine and most common solvents. O t h e r facts about polymeric acrylonitrile: • A white powder, stable to 150°C. • Soluble in several polar organic solvents and aqueous salt solutions. • Two grades available: Type A-Homopolymer, Molecular Wt.-150,000 Type A-7-Copolymer with 6% methyl acrylate, Molecular Wt.-100,000 • Available in commercial quantities. To evaluate Du Pont polymeric acrylonitrile for your R&D work, write on your company letterhead for technical information or a sample. Du Pont Co., Room G39552, Wilmington, DE 19898. *Food wrappings require F.D.A. approval.
another Du Pont Idea Intermediate"
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