Abstract:
A method of forming a plastic container from a preform that includes cooling and optionally providing counter pressure to a finish (32) of a preform (20) during forming of a container. During the method, an injection nozzle (14) directs a cooling medium is directed into a receiving space (80) into which the finish (32) is received.
Abstract:
An injection nozzle (14) for cooling and providing counter pressure to a neck (32) of a preform (20) during forming of a container from the preform (20). The injection nozzle (14) includes a manifold (48) that defines a receiving space (80) into which the neck (32) of the preform is received. A cavity (74) is also defined in part by an inner wall (65) and an outer wall (72) of the manifold (48) and a plurality of ports (76, 78) are provided through the inner wall (65) to communicate the cavity (74) with the receiving space (80). When a cooling medium is received into the cavity (74), the cooling medium is directed through at least some of the ports (76, 78) toward the neck (32) of the preform (20) located within the receiving space (80).
Abstract:
A resin precursor composition for use in the production of composite components includes an isocyanate component comprising a material selected from the group consisting of diphenylmethane diisocyanate, a polymeric isomer of diphenylmethane diisocyanate, and combinations thereof. The resin precursor composition also includes at least one polyether polyol having a functionality of three in an amount such that the ratio of the isocyanate component to the at least one polyol is between approximately 80% and 115% of stoichiometric. The resin precursor composition also includes a mold release material and a filler material.
Abstract:
A system (100) for producing a pultruded component (50) includes an impregnation die (150) for wetting yarns (110) of fiber with a polymeric resin precursor (141). The die (150) includes a first chamber (154) for coating external surfaces of the yarns (110) and a second chamber (156) for coating fibers within the yarns (110). The second chamber (156) has a cross-sectional area that decreases between an entrance to the second chamber (156) and an exit from the second chamber (156). The system (100) also includes a member (151) for spacing the yarns (110) apart prior to entering the first chamber (154) to allow the polymeric resin precursor (141) to flow around the external surfaces of the yarns (110).
Abstract:
A method for producing a pultruded component (50) includes providing a plurality of fiber tows (110) each formed of a plurality of fibers. The method also includes providing a first chamber (154) and a second chamber (156) for wetting the plurality of fiber tows (110) with a polymeric resin precursor (141). The method further includes pulling the plurality of fiber tows (110) through a first chamber (154) to wet their exterior surfaces with the polymeric resin precursor (141), pulling the plurality of fiber tows (110) through a second chamber (156) to wet the plurality of fibers within each tow, and pulling the wetted plurality of tows (110) and fibers through a curing die (160) to form the pultruded component (50).
Abstract:
A pultruded composite component includes a matrix material comprising a thermosetting polyurethane resin, and fibers provided within the resin matrix. All of the fibers within the resin matrix are oriented in substantially a single direction and the matrix material has an elongation-to-failure that exceeds that of the fibers.