1 The current raw material situation is not satisfying in terms of availability of renewable resource based products if it comes to water-based technology. In case of polyurethane dispersions one can find a wide selection of bio-based polyols or at least pre-cursors. In our company, we do also have a long history in terms of modifying natural oils for specific captive use in water-based resins, which is a clear asset and gives us the opportunity to leverage synergies in this field. One of the bio-based raw materials we use in synthesis is (modified) castor oil which offers various advantages compared ...