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H R Polyvinyl Butyral can help you ADD NEW PERFORMANCE to films, adhesives, coatings—and more
Butvar® resins offer many properties all in one molecule quite unlike other film formers. For example: Multi-Functional All Butvar resins carry three functional groups (hydroxyl, acetate and acetal) providing an excellent balance of properties and compatibility. Transparent Films Butvar can be made into a clear, colorless coating with excellent light resistance and aging characteristics. Outstanding Adhesion Butvar resins in your adhesive or coating formulation will help bond practically anything to anything—even glass, nylon, polyethylene. Ail-Purpose Reprographic Resin Butvar provides the perfect base resin for coatings, toners, and inks. Range of Molecular Weights Butvar grades vary from 34,000 to 270,000. What would you give for a tough, non-volatile "permanent" flexibilizer
for your formulations that can also improve a variety of additional properties; for example, timed release by controlled diffusion? Solutions of Butvar resin render fabrics water-proof, stain and abrasion resistant while retaining the advantages of machine laundering. Such fabric coatings are transparent—invisible on any kind of textile fiber base including nylon, viscose, rayon, fibrous glass. When cured, these elastomeric coatings become an integral part of the fabric; the hand stays soft and dry with no tackiness to the touch. As a co-resin, Butvar offers numerous improvements to coatings—barrier, laminating and surface finish types. It cross-links with phenolics, epoxies, ureas, iso-cyanates, melamines to improve coating uniformity and adhesion, increase toughness, and minimize cratering. And, Butvar imparts a permanent flexibility—enough to
make chemically resistant metal finishes that can take post-forming. There are dozens of ways Butvar resins might help you improve the performance of your products. A few examples: excellent tar, asphalt and oil hold-out for barrier coatings. Super toughness and adhesion for surface finishes. Improved hold-out of urethane and polyester topcoats. Strong-bonding structural adhesives for hard-to-glue substrates. More efficient mold release agents for rigid urethane foams. Butvar improves hold-out and hold-in properties for paper. As a high performance pigment binder, it yields coatings that are moisture resistant, tough, flexible, color stable. Tell us what performance you want. There's a good chance Butvar polyvinyl butyral will fill the bill. Let us match a resin to your need. ®Registered trademark of Monsanto Company
Monsanto Plastics & Resins Co. 800 North Lindbergh Boulevard, Dept. 804 A
Monsanto tne science company.
St. L o u i s , Mo. 63166 Please send me additional technical data on Butvar Resins. I am interested in
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A Unit of Monsanto Company
March 28, 1977 C&EN
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