WATER-BASED NONSTICK HYDROPHOBIC COATINGS

THERE is a considerable demand for materials that have surfaces to whi ch other substances mill not easily stick. Coatings with these propert ies might be used to make surfaces non-adhesive towards soil, ice, bio logical foulants, graffiti and other unwanted contaminants. Here we de scribe a class of water-based non-stick Coatings prepared by self-asse mbly and immobilization of reactive polymeric surfactants(1,2). These polymer surfactants contain pendant perfluoroalkyl groups which become oriented so as to yield surfaces with very low energy. Immobilization by crosslinking increases non-stick performance and film toughness. T hese hard, clear coatings release adhesives and cannot bk wetted or at tacked by solvents.