China (Mainland) 
USD $15.00-25.00 / Kilogram
USD $10,000.00-10,000.00 / Metric Ton
USD $10,000.00-10,000.00 / Metric Ton
USD $2,000.00-2,100.00 / Kilogram
vp/va copolymers with different rations of n-vinylpyrrolidone to vinyl acetate,soluble in most organic solvents.which exists in powder,water solution form.vp/va compolymer forms hard,water-removable and glossy films,it has excellent compatibility with many plasticizers and modifiers,an the hydroscopicity decreases in proportion to the ration of vinyl acetate.
vp/va copolymers are the excellent choice as film forming agent and hair-styling agent,which are suitable for fourmulations which used as film forming and viscosity modification,especially in hair styling products, such as hair gels,aerosol gas sprays,wet look sprays.
copovidone(pvp va64) is a copolymer of vinylpyrrolidone with vinyl acetate at the ration of 60:40,
supplied as white to creamy white,free-flowing powder.
chemical name:copolymer of vinylpyrrolidone with vinyl acetate
cas no.:25086-89-9
properties:
*soluble in water and most other organic solvents
*forms hard,glossy,transparent,air-permeable,water removable films
*lower hydroscopicity & better film former than povidone.
main technical parameters:
| appearance | white or creamy white,free-flowing powder |
| solution appearace(5% in water) | colorless and transparent liquid,lighter than b5,r7,by5 |
| aldehyde (as acetaldehyde) ppm max. | 500 |
| peroxide(as h2o2) ppm max. | 400 |
| hydrazine pppm max. | 1 |
| monomers % max. | 0.1 |
| impurity a % max. | 0.5 |
| heavy metals(as pb) ppm max. | 20 |
| moisture % max. | 5.0 |
| sulphated ash % max. | 0.1 |
| k value | 25.2-30.8 |
| va content % | 35.3-42 |
| nitrogen content % | 7.0-8.0 |
applications & benefits
*tablet binder,suitable in wet and dry granulations and direct compression tablet manufacturing processes.
*improves compactability of other binders in direct compression tablet processes.
*film coating,used for film promoters and sugar coatings to prevent splitting,bottom binder to prevent moisture sensitivity.
*improves adhesion of tablet coatings to hydrophobic cores.
*enhances appearance and color stability of tablet film coatings.
*possesses excellent film forming properties and high substantivity to skin.
