Abstract: The present invention relates to a compacted polymer-based filler material having a top cut particle size d98 of <500 ?m, a process for producing said compacted polymer-based filler material, a rotomoulded product obtained from the compacted polymer-based filler material, a process for producing said rotomoulded product as well as the use of said compacted polymer-based filler material as additive in a rotomoulded product

Abstract: The present invention relates to a process for producing an extrusion-coated material, an extrusion-coated material produced by the process, an article comprising the extrusion-coated material as well as the use of the extrusion-coated material in a lamination process.

Abstract: The present invention relates to a process for producing a compacted material comprising the steps of providing a powder material and a polymer binder, simultaneously or subsequently feeding the powder material and the polymer binder into a high speed mixer unit, mixing the powder material and the polymer binder in the high speed mixer unit until formation of a compacted material, and reducing the temperature of the obtained compacted material below the melting point or glass transition temperature of the polymer binder.

Abstract: An element with periodic structure for guiding electromagnetic waves propagating along a longitudinal axis of the structure at a speed below the velocity of light is disclosed. The structure includes a series of metal polar expansions aligned with the mentioned axis and forming a plurality of resonant metal cavities. The polar expansions have respective apertures aligned with each other so as to form a freeway for electron flow. First and second conductors are provided for cooperating with the polar expansions. The polar expansions each further respectively have first and second apertures for receiving first and second conductors that are preferably positioned diametrically opposed to each other with respect to the mentioned longitudinal axis.

Abstract: A klystron oscillator has an input cavity resonant in a TM.sub.010 mode and a larger output cavity resonant in a TM.sub.OnO mode where n is an integer greater than 1, preferably equal to 2. The input cavity, with re-entrant bosses defining a buncher gap, projects into the output cavity to form one of two re-entrant bosses thereof defining a catcher gap.