polyvinyl pyrrolidone

polyvinyl pyrrolidone

[¦päl·i′vīn·əl pə′räl·ə‚dōn]
(organic chemistry)
(C6H9NO)x A water-soluble, white, resinous solid; used in pharmaceuticals, cosmetics, detergents, and foods, and as a synthetic blood plasma. Abbreviated PVP.
References in periodicals archive ?
The 2015 Market Research Report on Global Polyvinyl Pyrrolidone (PVP) Industry report presents product specification, manufacturing process, and product cost structure etc.
Four hundred mg of various MW of PEG (MW: 1,000, 4,000, 6,000, 20,000), polyvinyl pyrrolidone (PVP, MW: 10,000) or insoluble polyvinyl polypyrrolidone (PVPP) were also added into the syringes.
25% weight in the nanocomposite coating; and a nanometer powder having 1%-10% weight in the nanocomposite coating; wherein the nanocomposite coating is formed by mixing the nanometer inorganic oxide gel, the organic solvent and the nanometer powder together; wherein the nanometer powder is processed by a surfactant before being mixed with the nanometer inorganic oxide gel and the organic solvent to form the nanocomposite coating; wherein the surfactant is any one of or a mixture of a sodium dodecylsulphonate and a polyvinyl pyrrolidone.
Plastic skin patches that deliver vaccines--Micro-needle patches made from polyvinyl pyrrolidone are being developed that can be mixed with vaccines (including the flu vaccine) and then painlessly applied to skin.
Several polymeric materials with different molecular weights such as polyethylene glycol (PEG), polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), polyurethanes (PU), and others, mainly water soluble, have been used as coatings of silver nanoparticles to enable particle dispersion [33].
Such systems include polyvinyl pyrrolidone homopolymers and polyvinyl pyrrolidone-vinyl acetate copolymers, HPMC and HPMC derivatives and acrylate copolymers.
For example, the 1-Day Acuvue Moist contact lens (Etafilcon A; Vistakon, Johnson & Johnson) uses polyvinyl pyrrolidone (PVP), which is permanently embedded within the Etafilcon A material to act as a 'water holding' agent that limits the rate of lens dehydration during wear.
com)-- ReportsandReports announce Production and Market of Polyvinyl Pyrrolidone in China Market Research Report in its Store.
In this study, the possibility of using polyvinyl pyrrolidone (PVPy) to improve the weathering properties by imparting water repellency and also to reduce the leachability of copper from ammoniacal systems was explored.
com/research/nn69hb/global_polyvinyl) has announced the addition of the "Global Polyvinyl Pyrrolidone (PVP) Industry Report 2015" report to their offering.
The liquid fabric treatment composition is placed in a water soluble container formed from a water soluble polymer selected from the group consisting of polyvinyl alcohols, polyvinyl alcohol copolymers, partially hydrolyzed polyvinyl acetate, polyvinyl pyrrolidone, alkyl celluloses, ethers and esters of alkyl cellulosics, hydroxyl alkyl, carboxy methyl cellulose sodium, dextrin, maltodextrin, water soluble polyacrylates, water soluble polyacry-lamides and acrylic acid/maleic anhydride copolymers.
The encapsulation layer may be crosslinked sodium alginate, crosslinked polyacrylic acid, crosslinked polyvinyl alcohol, crosslinked polyvinyl acetate, silicates, carbonates, sulfates, phosphates, borates, polyvinyl pyrrolidone, thermoionic gels, urea formaldehyde, melamine formaldehyde, polymelamine, crosslinked starch, nylon, and ureas.