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Huainan Kingcham New Materials Co., Ltd., was founded on May 15, 2017, and it located at Anhui(Huainan) Modern Coal Chemical Industry Park, covering an area of more than 33000 square meters.
The company has been committed to investing in technological innovation and industrial upgrade. Over the past decade years, throughout close cooperation between industry, academia, and research, we have fully utilized the advantages of organic solvent systems as green products, optimizing the production process and performance parameters of Polyvinylpyrrolidone(PVP, a high biocompatible polymer)products. To become our R&D achievements into industrialization, we have invested in a project with an annual production capacity of 6000 tons of PVP series products, hopefully it will make a great contribution to the promotion of PVP industry as well as environment protection around the world.
PVP (Polyvinylpyrrolidone)
PVP (polyvinylpyrrolidone) is a completely synthesized water-soluble polymer compound and it is a series of polymer fine chemical products obtained from N-vinylpyrrolidone (NVP) by homopolymerization, copolymerization and cross-linking polymerization. With its excellent solubility, physiological compatibility, bonding ability, complexation, film forming, adhesion and moisture absorption and other properties, acting as accessory ingredients, additives and pharmceutical excipients, PVP has been widely used in the field of medicine, brewing beverages, daily chemicals and new energy. Concerning the different requirements on its quality, purity and application, PVP has been developed into industrial, cosmetic, food and pharmaceutical grade specifications.
Relying on the molecular weight, the specifications of PVP can be classified into different viscosity levels for example K-12, K-15, K-17, K-30, K-60, K-90, etc. Theoretically the K-value and molecular weight of PVP is higher, and its viscosity, solubility, and thermal stability is also higher accordingly. 
Category K-Value Viscosity-Average Molecular Weight(Mv) Application
K-12 10.2-13.8 3000-7000 Solvent Enhancer and Dispersant
K-15 12.75-17.25 8000-12000 Crystallization Inhibitor
K-17 15.3-18.36 10000-16000 Solvent Enhancer and Dispersant
K-30 27-32.4 45000-58000 Adhesive, Film Forming Agent
K-60 54-64.8 270000-400000 Adhesive and Thickening Agent
K-90 81-97.2 1000000-1500000 Mixed Stabilizer
Polyvinylpyrrolidone cross-linked (PVPP) exists as white or slight yellow, free flowing hydroscopic powder with odorless or faint smell, which is not soluble in water, alkali, acid and common organic reagents. PVPP swells easily in water and is able to complex with polypbenol, carboxylic acids and other compounds of low molecular weight. PVPP is a kind of insoluble cross-linked polymer, therefore this substance has a special capability to reshape its structure and repair the application limitation to the good solubility of PVP itself. PVPP is not soluble in acid, alkali and common organic solvent but PVP itself is the opposite, meanwhile PVPP has a good performance of physiological safety, insolubility and complexation ability, It is widely used in the field of medicine, food-making and brewing.

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