Abstract: A mold-tool system (100), comprising: a body assembly (102); and a stem-guidance assembly (106) configured to maintain guiding movement of a valve-stem assembly (934) through the body assembly (102).

Abstract: There is provided a method (200) for decreasing acetaldehyde level in a molded article. The method (200) of decreasing acetaldehyde content in a molded article to be produced comprises introducing (202) into a feed throat (120) of an injection unit (100) a PET material to be plasticized, the PET material having been dried in a pre-treatment chamber (130); and introducing (204) into the feed throat (120) an un-treated agent (136) configured to increase moisture level of the PET material to be plasticized. In some embodiments of the present invention, the un-treated agent (136) is also configured to provide additional lubrication to the plasticizing screw (106).

Abstract: A mold-tool system (100) configured to accommodate a valve stem (104), the mold-tool system (100) comprising: a nozzle assembly (402) having: a nozzle-output end (408) being configured to support, at least in part, slide movement of the valve stem (104).

Abstract: A mold-tool system (100), comprising: a nozzle housing (102) having a melt passageway (103) extending from an input end (106) to an output end (108). A valve stem (104) is: (i) slide movable along the melt passageway (103), and (ii) slide supported by the input end (106) and by the output end (108).

Abstract: There is provided a neck ring for defining at least a portion of a neck portion of a preform. The neck ring comprises a body having: mounting flange and a molding face, the molding face including a venting structure, the venting structure having: (i) a plurality of air vent grooves for collecting and venting, in use, excess air from a molding cavity as it is being filled with the molding material, and (ii) an air collector groove in fluid communication with the plurality of air vent grooves for providing an evacuation path for the air to be vented from the plurality of air vent grooves.

Abstract: A mold-tool system (100) configured to accommodate a valve stem (104), the mold-tool system (100) comprising: a nozzle assembly (402) having: a nozzle-output end (408) being configured to support, at least in part, slide movement of the valve stem (104).

Abstract: There is provided a neck ring for defining at least a portion of a neck portion of a preform. the neck ring comprises a body having: mounting flange and a molding face, the molding face including a venting structure, the venting structure having: (i) a plurality of air vent grooves for collecting and venting, in use, excess air from a molding cavity as it is being filled with the molding material, and (ii) an air collector groove in fluid communication with the plurality of air vent grooves for providing an evacuation path for the air to be vented from the plurality of air vent grooves.

Abstract: A mold-tool system (100), comprising: a nozzle housing (102) having a melt passageway (103) extending from an input end (106) to an output end (108). A valve stem (104) is: (i) slide movable along the melt passageway (103), and (ii) slide supported by the input end (106) and by the output end (108).

Abstract: There is provided a method (200) for decreasing acetaldehyde level in a molded article. The method (200) of decreasing acetaldehyde content in a molded article to be produced comprises introducing (202) into a feed throat (120) of an injection unit (100) a PET material to be plasticized, the PET material having been dried in a pre-treatment chamber (130); and introducing (204) into the feed throat (120) an un-treated agent (136) configured to increase moisture level of the PET material to be plasticized. In some embodiments of the present invention, the un-treated agent (136) is also configured to provide additional lubrication to the plasticizing screw (106).

Abstract: There is provided a method for decreasing acetaldehyde level in a molded article. The method of decreasing acetaldehyde content in a molded article to be produced comprises introducing into a feed throat of an injection unit a PET material to be plasticized, the PET material having been dried in a pre-treatment chamber ; and introducing into the feed throat an un-treated agent configured to increase moisture level of the PET material to be plasticized. In some embodiments of the present invention, the un-treated agent is also configured to provide additional lubrication to the plasticizing screw.