Polymerization of high viscosity materials
AssigneePrinco Middle East FZE
InventorYi-Lin Chu
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Abstract
The present invention relates to a new polymerization process which is suitable for polymerizing high molecular weight products of high viscosity such as polycarbonates and polystyrenes in reasonable time. The present invention achieves the above-identified object by means of a polymerization process, wherein at least in the final stages of the polymerization reaction, two different types of mechanical mixing means are employed as alternatives, designated first and second mixing means. The first mixing means do generate new surfaces in the material to be treated by means of mechanical mixing and by means of gravity driven mixing, while the second mixing means do generate new surfaces in the material to be treated not by means of mechanical mixing and only by means of gravity driven mixing.
Claims14
Process for the preparation of a high viscosity polymeric material, wherein at least in one stage of the process a combination of first mixing means and second mixing means is employed, wherein the first mixing means comprises a rotating disk and wires, said wires being present above the rotating disk, and extending from the center of a rotating shaft, to the outer edge of the rotating disk, wherein the second mixing means has a cylindrical basis that is formed of wires extending from a portion of the rotating shaft to the outer periphery of the cylindrical basis, and wherein the second mixing means does not comprise a rotating disk.
Dependencies are inferred from the claim text.