A n o t h e r success story of S h a w i n i g a n a c e t a l resins
textile coatings Shawinigan Resins* Butvar (polyvinyl butyral) is the pri mary ingredient in water-proof c o a t i n g s for high-style rainwear. On virtually any natural or synthetic fabric, the Butvar coating — tough, flexible and lightweight — en hances the hand and drape. The coating is impermeable to moisture — even under pressure — yet will transmit mois ture vapor, thus assuring comfortable, durable rainwear. Because of these outstanding qualities, the U.S. Army has adopted Butvar coated nylon for dress raincoats. This is just one illustration of how acetal resins are being used to advantage in industry. These versatile resins might be the answer to your product improvement problem. Polyvinyl acetal resins. Butvar and Formvar, are un usual polymers because they contain three different func tional groups distributed in the molecular chain. Available in a variety of molecular weights and chemical composi tions, the acetal resins are compatible with a wide range of
resins and plasticizers. This variety of grades allows users great flexibility in the choice of solvents. Under suitable conditions Butvar and For m va ι are re active with phenolics. melamines and other thermosetting resins, and, even in fairly minor quantities, impart signifi cantly improved adhesion, toughness and flexibility. Why not put these unique properties to work in your product. W e l l be glad to help. Write for full information and product literature to Shawinigan Resins Corporation. Dept. 1246, Springfield 1. Mass. Shawinigan does not produce textile coatings . . . we sup ply acetal resins which make them possible.
FORMVAR® polyvinyl formal and BUTVAR^ polyvinyl butyral resins by
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