PVP Poly(1-vinylpyrrolidone-co-vinyl acetate) VA64 with CAS 25086-89-9

What is PVP Poly(1-vinylpyrrolidone-co-vinyl acetate) VA64 with CAS 25086-89-9? VA64 is a water-soluble polymer resin, which is a white powder, odorless and tasteless, easy to absorb moisture, soluble in water, ethanol and anhydrous alcohols, and has good adhesion, hygroscopicity and film-forming properties. and surface activity. Specification ITEM STANDARD Appearance White or slightly yellow hygroscopic powder or flakes Solubility Soluble in water, 96% ethanol or chloroform Identify A, B Meet the requirments Solution Appearance Clear to cloudy PH 3.0-7.0 Aldehyde ppm ≤500 Peroxide ppm ≤ 400 ppm ≤ 10.0 Vinyl acetate ppm ≤ 5.0 Saponification value mg/g 230-270 Residue on ignition% ≤ 0.1 Vinyl acetate% 35.3-42.0 Hydrazine ppm ≤ 1.0 2-P% ≤ 0.5 Moisture% ≤ 5.0 Heavy metal ppm ≤ 20 Nitrogen content% 7.0-8.0 K value 26.0- 36.0 Application Pharmaceutical field: VA64 is mainly used as a water-soluble adhesive and dry adhesive in granulation and direct compression technology, as a film-forming material in film coating, and as a channel former in taste-masking agents. It is applied to the sugar coating to prevent splintering, and the bottom coating is used to prevent moisture. Industrial fields: VA64 is used in industry as rewetting adhesives, adhesives for paper, adhesives for coatings, thickeners and protective colloids for various inks, emulsifiers commonly used in plant protection agents and protective colloid. Package 25kg/drum