PVP/VA S-630 Vinylpyrrolidone/vinylacetate copolymer International Specialty Products Vinyl >> Polyvinylpyrrolidone and Vinylpyrrolidone Copolymers Inks Printing Inks & Varnishes General Industrial /Maintenance Soluble in alcohols, esters and ketones Insoluble in ethers and aliphatic hydrocarbons PVP/VA, thermoplasticity, oxygen permeability, varying hydrophilicity and adhesion Vinylpyrrolidone/Vinylacetate Copolymers PVP/VA copolymers produce transparent, flexible, oxygen permeable films which adhere to glass, plastics and metals. ability to control their hydrophilicity through monomer composition Polyvinylpyrrolidone/vinyl acetate (PVP/VA) resins are linear, random copolymers produced by the free-radical polymerization of the monomers in ratios varying from 70/30 to 30/70 vinyl acetate to vinylpyrrolidone. The PVP/VA copolymers are thermoplastic resins with molecular weights from 20M to 50M. Their glass transition temperatures vary from 55 to 109°C and hydrophilicity increases with vinylpyrrolidone content. industrial, specialty and imaging coatings, printing inks and paints Thermoplastic, linear, random vinylpyrrolidone/vinylacetate copolymer. Used in industrial, specialty and imaging coatings, printing inks and paints. Provides transparency, flexibility, oxygen permeability and adhesion to glass, plastics and metals.