Polyvinylpyrrolidone/PVP

Polyvinylpyrrolidone is abbreviated as PVP, and is the polymer of vinylpyrrolidone. According to the different degree of polymerization, it is further classified into soluble PVP and insoluble PVPP (polyvinyl polypyrrolidone). Molecular weight of the soluble PVP is 8,000 to 10,000.The soluble PVP can be used as a precipitating agent which can be settle down through its action with polyphenols. Using this method, it is easily to have residual PVP in the alcohol. Due to the savings effect of PVP inside the human body, the World Health Organization doesn't recommend to apply this substance. In recent years, the use of soluble PVP has been rare. Insoluble PVPP system had began to be used in the beer industry since the early 1960s. It has a relative molecule weight greater than the relative mass greater than 700,000. It is a insoluble polymer derived from the further cross-linking and polymerization of PVP and can be used as an adsorbent of polyphenols with a good efficacy.

*Suspensant, disperser and emulsifier
   *Glass fiber
   *Detergent
   *Plastics and resin
   *Ink
   *Paint and coating
   *Textile dying and printing
   *Film
   *Adhesive
   *TV tube

PVP are used widely in a wide range in hair care, skin care & oral care products.The products are particularly suitable for formulations where viscosity modification and film forming properties are required. PVP-K products are particularly suited to hair styling products. The medium molecular weights such as PVP K30 are preferred where viscosity is critical in applications, for example, spray. The higher molecular weight products such as PVP K90 are the best choice where high viscosity are required in applications. PVP-K is widely used in cosmetics as followings
   *Hair Gels
   *Hair mousses
   *Liquid hair setting preparations
   *Pump Sprays

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PVP K series products exists as white or milk white powder or colorless or slight yellow transparent liquid. It can dissolve in water and a variety of organic solvents. It has good hygroscopicity, film-forming capability, complexing ability and physiological compatibility.

PVP (Pharmaceutical grade) is a kind of new excellent pharmaceutical excipient. It is mainly used as binder for tablet and granule, dissolving assistant for injection, flow assistant for capsule, dispersant for liquid medicine and pigment, stabilizer for enzyme and heat-sensitive drug, coprecipitant for poorly soluble drugs, lubricator and antitoxic assistant for eye drug. PVP has been used as excipient in more than one hundred drugs.Polyvinyl pyrrolidone (PVP) is a non-ionic polymer compound and the most distinctive, most studied and most extensive fine chemical among N-vinylamide polymers. It has developed into three major categories: non-ionic, cationic and anionic, three specifications: industrial grade, pharmaceutical grade and food grade, and a series of homopolymer, copolymer and cross-linked polymer products with relative molecular weights ranging from thousands to more than one million, and has been widely used for its excellent and unique properties.

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