Polyvinyl alcohol

PVA is used in a variety of medical applications because of its biocompatability, low tendency for protein adhesion, and low toxicity. Specific uses include cartilage replacements, contact lenses, and eye drops. Polyvinyl alcohol is used as an aid in suspension polymerizations. Its largest application in China is its use as a protective colloid to make polyvinyl acetate dispersions.. In Japan its major use is the production of vinylon fiber.