Factory Supply CAS 9003-39-8 PVP Polyvinylpyrrolidone K90

Polyvinylpyrrolidone (PVP) is a water soluble polyamide. Commercially available PVP is divided into four viscosity grades according to its press K value (Fikentscher K value): K-15, K-30, K-60, K-90, with the average molecular weight being 10,000, 40000,160000, and 360000, respectively. K value or molecular weight is an important factor which decides the various properties of PVP.
Polyvinylpyrrolidone (PVP) and its copolymer cap are important raw materials for cosmetics. They are mainly used as hair retainers. The film formed by PVP on hair is elastic and glossy. It has excellent carding performance and does not touch dust. Different specifications of resins can meet various relative humidity and climate conditions. Therefore, it is an indispensable raw material for styling hair emulsion, hair gel and mousse.

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