Abstract: Printing rollers and sleeves for printing rollers can be provided with a high quality top coat composition which can improve various properties such as solvent resistance, cut resistance, and thermal stability (with respect to dimensional stability and hardness stability), and reduce manufacturing time and costs. A polyurethane top coat composition is used with filler present in an amount of from about 15-70% by weight of the coating. The coatings may also include a low density, high hardness foam underlayer which can be applied without a molding operation.

Abstract: The invention relates to a foamable two-component material based on polyurethane, which can be used, for example, to produce freely foamed seals on a surface or in a groove. Furthermore, the invention relates to specific individual components of this material as well as to objects made of such a material.An essential aspect of the inventive solution is the feature of forming a two-component material of the type in question, such that one component (A) is a polymer which essentially has only two hydroxyl groups per molecule, and the other component (B) is an isocyanate component which likewise is essentially bi-functional. Customary other additives can be provided as necessary.