KURARAY POVAL™ L grades let you do more with PVC

Polyvinyl alcohol (PVOH) plays a key role in the production of PVC. During polymerization, this polymer acts as a protective colloid, which significantly improves the properties of PVC. L grades of KURARAY POVAL™ polyvinyl alcohol – PVOH polymers with low hydrolysis and very good solubility in water – are marketed by Kuraray, a world-leading producer of PVOH. Use this unique PVA to enhance the quality and efficiency of your PVC production.

Improved properties for demanding PVC

KURARAY POVAL™ L grades are polyvinyl alcohols with a very low degree of hydrolysis, so they dissolve completely in water. KURARAY POVAL™ L grades are therefore excellent primary suspending agents in vinyl chloride suspension polymerization. These PVOH products regulate grain formation during production, resulting in improved PVC properties such as more uniform structure, morphology and particle size distribution.

Optimal viscosity for more efficient processes

Another advantage of KURARAY POVAL™ L grades is their particularly low viscosity. With 70-80 mol% hydrolysis, the viscosity of these Kuraray polymers ranges from 5 mPas to 8 mPas (measured in a 4% aqueous solution). These PVOH polymers are easy to remove, which helps reduce production waste and makes production processes more efficient. For use as a secondary dispersing agent, Kuraray offers PVC producers KURARAY POVAL™ LM grades

Use KURARAY POVAL™ L grades to optimize the quality and efficiency of PVC production – and benefit from PVOH polymers that set global standards.


  • Improve PVC properties (high porosity, narrow particle size distribution, high bulk density, improved grain size)
  • Improve production efficiency (monomer is easy to remove, low production waste)

  • Primary suspending agent in suspension polymerization of PVC

  • Low viscosity
  • Low hydrolysis
  • Completely soluble in water
Contact Kuraray

Please contact us if you would like more information on KURARAY POVAL™.

Phone: +49 69 305 85 343