Polyvinylpyrrolidone (PVP): A Water‑Soluble Polymer Supporting Pharmaceuticals, Cosmetics, and Electronic Materials
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Polyvinylpyrrolidone (PVP) is a biocompatible, nonionic polymer that was developed in Germany in the late 1930s and was originally used in medical applications as a plasma volume expander. Today, owing to its high level of safety, PVP is widely used not only in general industrial products but also in pharmaceuticals, cosmetics, and many other fields. PVP is a unique water soluble polymer that dissolves not only in water but also in many polar solvents such as alcohols, and it exhibits excellent compatibility with other materials. As a result, it provides a wide range of functionalities, including dispersibility, protective colloid behavior, solubilization, film forming properties, and adhesion.
In pharmaceutical applications, PVP is used as a carrier material for iodine in povidone iodine gargle formulations, as well as a tablet binder and a solubilizing agent for poorly soluble active pharmaceutical ingredients. In cosmetics, its film forming and adhesive properties are effectively utilized in hair styling products such as hair sprays.
PVP is also widely used in industrial applications as a water based dispersion and suspension stabilizer, including dispersants for chemical mechanical polishing (CMP) slurries in semiconductor processing and suspension stabilizers for metal oxide powders used in ceramics.
From everyday consumer products to advanced materials, PVP can be regarded as a key polymer supporting a broad range of industries.
We launched domestic commercial production of PVP in 2002, establishing a stable supply system as an alternative to imported products while actively expanding new applications. Today, we offer a wide range of PVP products covering general industrial uses, cosmetic applications, and pharmaceutical grades.
PVP products are classified by a viscosity index related to molecular weight, known as the K value, with grades such as K-17, K-30, and K-90. Our lineup spans a wide range, from low molecular weight grades such as K-17 to high molecular weight grades up to K-120. Low K value (low molecular weight) grades are suitable for applications requiring low viscosity, such as liquid inks and sprays, while high K value (high molecular weight) grades are used in applications that require higher viscosity or film strength, including thickeners and binders.
Depending on application needs, our PVP products are available in both powder form (PITZCOL series) and aqueous solution form (PITZCOL L series).
Another key strength lies in our ability to flexibly respond to customer requirements through customization and molecular design, supported by polymer synthesis technologies refined over many years. Conventionally, low K value grades tended to exhibit inferior color clarity and increased viscosity under alkaline conditions. We have addressed these challenges by developing proprietary grades such as K-30A, which offer excellent color clarity and reduced thickening even under alkaline conditions. In recent years, we have also focused on the development of new, even lower molecular weight grades, including K-17A.
Looking ahead, performance requirements for PVP are expected to become increasingly advanced, particularly in electronic materials such as semiconductors and in pharmaceutical applications. Leveraging our diverse product portfolio, long established synthesis expertise, and stable domestic manufacturing system, we remain committed to developing higher performance PVP products.
As a water soluble polymer, polyvinylpyrrolidone will continue to contribute to solving our customers’ technical challenges.
Surfactants Group
Core Materials R&D Department
Core Materials Business Division
Business Headquarters
YAMADA Takuya