Polyvinylpyrrolidone Vinyl Acetate

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Polyvinylpyrrolidone vinyl acetate.

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. Visit chemicalbook to find more poly 1 vinylpyrrolidone co vinyl acetate 25086 89 9 information like chemical properties structure melting point boiling point density molecular formula molecular weight physical properties toxicity information customs codes. Acetic acid ethenyl ester polymer with 1 ethenyl 2 pyrrolidinone. Ullmann s encyclopedia of industrial chemistry.

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. 2003 to present p. 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. Pvp va polymers produce transparent flexible oxygen permeable films which adhere to glass plastics and metals.

Addition of vinyl acetate to the polymer chain reduces the hydrophilicity and hygroscopicity of the pvp homopolymer. Materials science poly vinylpyrrolidinone pvp copolymers. 190845 sigma aldrich poly 1 vinylpyrrolidone co vinyl acetate average m w 50 000 gpc vs. Federal republic of germany.

190845 poly 1 vinylpyrrolidone co vinyl acetate email this page to a friend. At 50 rh the typical equilibrium moisture content is approximately 10 fig. Food and drug administration fda has approved this chemical for many uses and it is generally considered safe. Supply intermediates for pharmaceuticals agrochemicals dyestuff electro chemicals cosmetics perfume etc.

Polyvinylpyrrolidone vinyl acetate vp va copolymer is a white free flowing powder. In microscopy pvp is useful for making an aqueous mounting medium. Pvp can be used to screen for phenolic properties as referenced in a 2000 study on the effect of plant extracts on insulin production. Pvp va copolymers are available as white powders or clear solutions.

The main areas of use are the production of polyvinylpyrrolidone and copolymers the preferred comonomers being vinyl acetate and methyl acrylate. 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. No genotoxicity data are available. Is supplier for polyvinylpyrrolidone vinyl acetate.

Custom manufacturing and co developing new chemicals under signing secret. Pvp va copolymer is poorly absorbed orally and largely excreted intact in the faeces.