Biofoam™:

In the cake mix that makes up a polyurethane blank, homeblown now manufactures a blank in which about 50% of the cake mix ingredients are from agricultural products. This new Biofoam™ blank takes advantage of new chemistries in which the bio-materials are converted from natural plant oils into materials that provide functionality beyond petrochemicals at a similar cost. Biofoam™ is a true bio-based product from renewable, agricultural resources. Link