Polyvinylpyrrolidone Vinyl Acetate

The main areas of use are the production of polyvinylpyrrolidone and copolymers the preferred comonomers being vinyl acetate and methyl acrylate.

Polyvinylpyrrolidone vinyl acetate. Pvp va polymers produce transparent flexible oxygen permeable films which adhere to glass plastics and metals. Pvp va copolymer is poorly absorbed orally and largely excreted intact in the faeces. The major businesses of our company are. Ullmann s encyclopedia of industrial chemistry.

190845 sigma aldrich poly 1 vinylpyrrolidone co vinyl acetate average m w 50 000 gpc vs. At 50 rh the typical equilibrium moisture content is approximately 10 fig. Pvp va copolymers are available as white powders or clear solutions. Pvp can be used to screen for phenolic properties as referenced in a 2000 study on the effect of plant extracts on insulin production.

In microscopy pvp is useful for making an aqueous mounting medium. Acetic acid ethenyl ester polymer with 1 ethenyl 2 pyrrolidinone. No genotoxicity data are available. 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.

Federal republic of germany. Supply intermediates for pharmaceuticals agrochemicals dyestuff electro chemicals cosmetics perfume etc. Custom manufacturing and co developing new chemicals under signing secret. Addition of vinyl acetate to the polymer chain reduces the hydrophilicity and hygroscopicity of the pvp homopolymer.

2003 to present p. 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. Polyvinylpyrrolidone vinyl acetate vp va copolymer is a white free flowing powder. 190845 poly 1 vinylpyrrolidone co vinyl acetate email this page to a friend.

Is supplier for polyvinylpyrrolidone vinyl acetate. 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. Food and drug administration fda has approved this chemical for many uses and it is generally considered safe. 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 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. You can also browse global suppliers vendor prices price manufacturers of poly 1 vinylpyrrolidone co vinyl acetate 25086 89 9.