Extruder screw

• Main Authors: NEUBAUER ANTHONY C, DUNCHUS NEIL W
• Format: Patent
• Language: English
• Published: 07.01.2015
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Embodiments of the present disclosure include an extruder screw, (200-1, 200-2) an extruder screw system (254) having a least one of a first extruder screw (200-1, 200-2) and at least one of a second extruder screw, (200-1, 200-2) an extruder system (250) having the extruder screw system (254), a continuous process for the production of an aqueous dispersion using the extruder system, and an aqueous dispersion formed by the process. For the various embodiments, the extruder screw (200-1, 200-2) includes a mixing and melting segment (266); a high internal phase emulsion segment (268) that includes a kneading block having a plurality of disks with surfaces that define a plurality of channels; a distributing and pumping segment (270); a first seal segment (272) between the mixing and melting segment (266) and the high internal phase emulsion segment (268); a second seal segment (274) between the high internal phase emulsion segment (268) and the distributing and pumping segment (270); and a third seal segment (276) at an end distal the distributing and pumping segment (270) relative the high internal phase emulsion segment (268).