Novel Polyester Polyol to Enhance the Physical Properties of R245fa Foams

摘要

As the end of 2002 nears, the task to find a replacement for R-141b intensifies. R-245fa is an available alternative blowing agent. However, because of its high cost, the amount of this material in a typical spray or PIP foam system must be minimized. This presents the system formulator with a significant challenge to meet the physical properties of foams. Terol 708 has been developed to enhance foam physical properties because of its high functionality and high aromatic content. The high functionality will improve compressive strength and reduce demold time. Since high functionality will allow higher loading of this polyester polyol, this will also enhance foam fire properties. We will present actual physical properties of field produced foams in both of these applications.