Best price of 95%min 25249-54-1 Crospovidone (XL/PVPP) in bulk supply CAS NO.25249-54-1

Polyvinylpyrrolidone cross-linked Usage And Synthesis

Indications and Usage Polyvinylpyrrolidone (PVP) is a polymer of vinyl pyrrolidone. It is divided based on degree of polymerization into soluble PVP and insoluble polyvinyl polypyrrolidone (PVPP). Commercially available PVPs are divided into four viscosity grades by K value (Fikentscher K): K-15, K-30, K-60, K-90, with respective molecular masses of 10000, 40000, 160000, and 360000. K value or relative molecular mass is one of the important factors determining the various properties of PVP.

Polyvinylpyrrolidone is one of the three major new medicinal materials. It can be used for tablets, granules, a cosolvent for injections, glidant for capsules, liquid preparation and dispersant for colorants, stabilizer for enzymes and thermosensitive drugs, precipitant for poorly soluble drugs, and a removal agent and lubricant for eye drops, etc. The combination of PVP with toxins, drugs, and chemical agents can reduce their toxicity. Complexes with iodine are very stable, with good bactericidal effects, reducing toxicity.

Used in industry as a foaming polystyrene additive, gelling agent, stabilizer, fiber treatment agent, paper processing aid, adhesive, and thickener. Some dyes can also be strongly complexed with PVP, which is the basis for polyvinylpyrrolidone PVP as a dye bleaching agent.

Polyvinylpyrrolidone PVP and its copolymer is an important raw material for cosmetics, mainly used for hair styling agents. The film it forms on hair is flexible and shiny, with good combing performance, without attracting dust. Different resins can satisfy different relative humidity and climatic conditions, so it is an indispensable raw material for styling hair cream, hair gel, and mousse. It can also be used as a cosmetic skin care moisturizing agent, base material of grease, hair coloring dispersant, and foam stabilizer. It can improve the consistency of shampoo. Insoluble PVP is a stabilizer for beer, fruit juice, vinegar, wine and so on, improving its clarity, color and taste.

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NKY has and will always strive to deliver the highest quality products to our customers. NKY is continuously

updating and implementing the best technology to manufacture our products, improving and updating our

quality management systems and investing in our R&D capabilities.

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NKY has been a supplier of PVP-based excipients to the pharmaceutical industry.

Presently, NKY offers the

complete range of PVP excipient products to the global pharmaceutical market. All our products are of the

highest quality and meet all regulatory specification. In addition, our comprehensive technical support

group, our continuing updated quality management system and meticulous after-sales service allows our

customers the peace of mind that they have chosen the right partner for their material needs.

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NKY is committed to the development of new pharmaceutical excipients and new innovative preparation

techniques to provide new solutions and extra value for our customers. We will continue to work diligently

to build our presence in the pharmaceutical industry. It is our mission to not only stay a dependable

supplier of high quality pharmaceutical products, but to become a trusted partner that global

pharmaceutical companies will want to work with in developing new opportunities and growth.