Vorrichtung zur Herstellung von Kunststoff-Formteilen und deren Verwendung

WO 2011006648 A1 UPAB: 20110214 NOVELTY - The device comprises an extruder (2) and a molding tool (4) arranged downstream of an outlet opening of the extruder, where a screw (5) is guided in the extruder such that it is rotated and also axially displaced to transfer liquid polymers, prepolymers or monomers located in the extruder into the molding tool. A non-return valve is arranged in the region of the free end of the screw. A locking ring of the non-return valve seated against the inner circumferential wall of the extruder comprises a seal, which is applied to a part of the outer circumference. USE - Device for manufacturing plastic molded parts (claimed). ADVANTAGE - The device directly manufactures the plastic molded parts of very low viscous liquid polymers, prepolymers and monomers in any desired geometry