Abstract
Synopsis: The bio-polyol for the flexible polyurethane foams with high degree of biomass content has been developed, which derived from inedible natural oil in order to prevent petroleum resources waste and carbon dioxide emissions cut. We were able to market in first generation bio-polyol suitable for the standard of the flexible polyurethane foam for seat cushion of a car, but it was difficult to satisfy the physical properties of polyurethane foams for seat cushion with increasing the high degree of the biomass content. We have developed the second generation bio-polyol for molded flexible polyurethane foams with high degree of biomass content by using high purity castor oil fatty acid. This paper describes the effect of purity of castor oil fatty acid and the compatibility with bio and fossil based polyols on the mechanical properties of flexible polyurethane foams.
