PVC Dispersing Agent: Specialty Applications

pvc diagram

Selvol PVOH: Primary PVC Dispersing Agent

Manufacturers have long used polyvinyl alcohol (PVOH) as a primary dispersing agent in polyvinyl chloride (PVC) suspension polymerization. In fact, using specific PVOH grades can influence droplet stability and particle morphology, which contributes to PVC particles’ properties (such as porosity, bulk density and thermal characteristics). PVOH is a clear choice as a PVC dispersing agent.

For the past decade, Selvol 540 has been a mainstay among PVC primary dispersant options. SEKISUI manufactures this medium viscosity, partially hydrolyzed grade in the U.S. and regularly distributes it to customers worldwide.

We’ve added Selvol E605, E635 and recently E640 to our PVC primary dispersant offerings. These Selvol PVOH grades provide the unique properties that PVC suspension polymerization demands via optimized degree of hydrolysis and particle size. Additionally, we’re developing two new grades to better serve the primary dispersant industry.

We look forward to collaborating with you in this growing market and being part of tomorrow’s innovative materials.

pvc availability chart

SEKISUI’s History With CPVC

SEKISUI CHEMICAL Group has been a leading CPVC supplier for over 40 years. We manufacture stable, high-quality products under the Durastream brand.

front view of pvc plant

Durastream is our high-performance CPVC compound product, replacing tin and lead as a safer and more conscientious CPVC compound stabilizer.

In July of 2013, we expanded our CPVC resin production capacity by investing in TOKUYAMA SEKISUI COMPANY (Tokuyama Sekisui). This facility increases our CPVC resin production capacity from 33,000 metric tonnes to 40,000 metric tonnes per year! Tokuyama Sekisui continues to improve its competitiveness through research into compound design technology and efforts to improve CPVC compound quality. Meanwhile, we’ve established a new production and sales company for CPVC compounds in Thailand.

Contact us to learn more or to request samples.

Learn more about product availability, test data and company capabilities in our technical bulletin, Selvol PVOH as a PVC Dispersing Agent.


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