PVP ( Polyvinylpyrrolidone)

is α film former, protective colloid and suspending agent, dye-receptive agent binder and stabilizer, detoxicant, complexing agent

physiologically acceptable polymer··· and more!

PVP is a film-forming poly­mer which accounts for many of its uses. It also ex­hibits a high degree of com­patibility with inorganic salt solutions, natural and syn­thet ic resins, and other chemicals.

PVP forms molecular adducts with many other substances. This can result in solubilization or in preci­pitation, depending on the compound involved. Chemi­cal complexes of practical importance are formed, for example, with tannins that are useful in beverage clari­fication, and with iodine for use in improved pharma­ceuticals. Physiological ef­fects, such as toxicity may be modified, pharmacologi­cal act ion of drugs en­hanced, and durat ion of effect prolonged.

PVP is a water-solu­ble, nonionic polymer that is unique because it is also freely soluble in many or­

ganic solvents. In aqueous solutions, the concentration is limited only by the viscos­ity.

Representative organ­ic solvents for the polymer include alcohols, organic acids, some chlorinated hy­drocarbons, nitroparaffins, and amines. The use of an­hydrous material or of a mutual solvent considerably extends this list.

We'd like to tell you more about this very un­usual polymer. Just take a moment and fill out the cou­pon. We'll send you a free sample and technical litera­ture.

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