Polyvinylpyrrolidone Vinyl Acetate

Acetic acid ethenyl ester polymer with 1 ethenyl 2 pyrrolidinone.

Polyvinylpyrrolidone vinyl acetate.

Federal republic of germany. Copovidone pvp pva is the random linear copolymer of n vinyl 2 pyrrolidone and vinyl acetate in a 60 40 ratio making it a derivative of pvp. Materials science poly vinylpyrrolidinone pvp copolymers. Is supplier for polyvinylpyrrolidone vinyl acetate.

No genotoxicity data are available. The panel on food additives and nutrient sources added to food provides a scientific opinion on the use of polyvinylpyrrolidone vinyl acetate pvp va copolymer in food supplements. Custom manufacturing and co developing new chemicals under signing secret. Polyvinylpyrrolidone vinyl acetate vp va copolymer is a white free flowing powder.

Pvp can be used to screen for phenolic properties as referenced in a 2000 study on the effect of plant extracts on insulin production. Food and drug administration fda has approved this chemical for many uses and it is generally considered safe. 190845 sigma aldrich poly 1 vinylpyrrolidone co vinyl acetate average m w 50 000 gpc vs. Supply high purity organic reagent.

2003 to present p. Pvp va copolymer is poorly absorbed orally and largely excreted intact in the faeces. The main areas of use are the production of polyvinylpyrrolidone and copolymers the preferred comonomers being vinyl acetate and methyl acrylate. In microscopy pvp is useful for making an aqueous mounting medium.

Pvp va polymers produce transparent flexible oxygen permeable films which adhere to glass plastics and metals. 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. Pvp va copolymers are available as white powders or clear solutions. Supply intermediates for pharmaceuticals agrochemicals dyestuff electro chemicals cosmetics perfume etc.

At 50 rh the typical equilibrium moisture content is approximately 10 fig. The major businesses of our company are. In cosmetics and personal care products vp va copolymer is used primarily in the formulation of hair care products but can also be found in skin and nail products. You can also browse global suppliers vendor prices price manufacturers of poly 1 vinylpyrrolidone co vinyl acetate 25086 89 9.

Ullmann s encyclopedia of industrial chemistry. Addition of vinyl acetate to the polymer chain reduces the hydrophilicity and hygroscopicity of the pvp homopolymer.