Detailed Product Description

Hydroxyl-Modified Vinyl Chloride/Vinyl Acetate Copolymers are manufactured using two different processes. VAH-L are polymers made in a two-step process that yields vinyl alcohol in the backbone.

VAH-L is a medium molecular weight, partially hydrolyzed vinyl chloride/vinyl acetate resin having a composition of approximately 90 percent vinyl chloride, 3 percent vinyl acetate, and 7 percent vinyl alcohol, with a hydroxyl content of approximately 1 percent; VAH-L can be dissolved in relatively strong solvent/diluent combinations, such as 50 percent ketone/50 percent aromatic hydrocarbon, to produce resin solutions of 20 percent solids.

Hydroxyl-modified vinyl chloride/vinyl acetate copolymers are noted particularly for compatibility with other film-forming resins, such as alkyds, urethane elastomers, isocyanate resins, epoxy polymers, and urea and melamine resins. Hydroxyl-modified vinyls are, therefore, often formulated with these and other film-forming materials to improve coating properties, such as adhesion, flexibility, toughness, hardness, and

chemical resistance. Hydroxyl-modified resins are often used to impart snap-dry properties to a coating. The hydroxyl functionality permits crosslinking reactions for thermoset coating systems that exhibit outstanding chemical and water resistance.

VAH-L can be used for a wide range of coatings applications, including industrial maintenance and marine finishes, wood finishes, paper coatings,metal decorative and container coatings, interbedded adhesion, PET ink and as a binder in magnetic tape.