The injection moulding of articles formed by plastic materials having different characteristics, for example of different colours, is carried out in a single injection cycle in which the first and the second plastic materials are injected into a first and into a second zone of a mould cavity by first and second injectors controlled according to specific modes so as to define a shape and/or a position of a weld line.

The injection moulding of articles formed by plastic materials having different characteristics, for example of different colours, is carried out in a single injection cycle in which the first and the second plastic materials are injected into a first and into a second zone of a mould cavity by first and second injectors controlled according to specific modes so as to define a shape and/or a position of a weld line.

The injection moulding of articles formed by plastic materials having different characteristics, for example of different colours, is carried out in a single injection cycle in which the first and the second plastic materials are injected into a first and into a second zone of a mould cavity by first and second injectors controlled according to specific modes so as to define a shape and/or a position of a weld line.

The mold apparatus disclosed herein is configured for simultaneous communication of a resin having a color and a complementary resin having a complementary color into a mold cavity without intermixing between the resin and the complementary resin in order to form an object wherein the color is essentially separated from the complementary color, in various aspects. In various aspects, the object formed by the mold apparatus may be configured as a fishing lure body, which is a molded portion of a fishing lure. The fishing lure body has a top and a bottom, and the top is of the color and the bottom is of the complementary color, in various aspects. Related methods and manufactures are disclosed.

A method for manufacturing an enclosure for a utility meter is provided, wherein at least two of a main cover part, an exterior terminal cover part, and an interior terminal cover part are at least partly formed jointly as a cover assembly in an injection moulding device. Further provided is a utility meter with an enclosure manufactured by the method.

Provided is a molding system for molding a thermoplastic article. The molding system comprises a first mold half and a second mold half. The first and second mold halves together define a plurality of molding cavities in a first closed position. The plurality of cavities serve to mold a corresponding plurality of article components in a first molding stage. Subsequent the first molding stage, the first mold half is displaceable relative to the second mold half to align the plurality of article components formed during the first molding stage. During a second molding stage, the first and second mold halves are closed to a second closed position, to engage and bond together the plurality of article components into a finished thermoplastic article.

Building panels and methods of making the same are disclosed herein. In one embodiment, a method of injection molding a building panel includes co-mingling a first material and a second material in a molten material, where the second material includes a color that contrasts with the first material. The method also includes injecting the molten material into a cavity of an injection mold, modifying a flow front of the molten material as the molten material flows in the cavity, and cooling the molten material to form a solidified building panel.

A coinjection molded multi-layer container includes an inner layer, an outer layer, and a barrier layer. The inner layer includes a first polymeric material and forms an inside surface of the container. The outer layer includes the first polymeric material and forms an outside surface of the container. The barrier layer is located between the inner layer and the outer layer and includes a second polymeric material less permeable to gas than the first polymeric material. The barrier layer is biased toward the inside surface or the outside surface such that the inner layer and the outer layer have different thicknesses.

A coinjection molded multi-layer container includes an inner layer, an outer layer, and a barrier layer. The inner layer includes a first polymeric material and forms an inside surface of the container. The outer layer includes the first polymeric material and forms an outside surface of the container. The barrier layer is located between the inner layer and the outer layer and includes a second polymeric material less permeable to gas than the first polymeric material. The barrier layer is biased toward the inside surface or the outside surface such that the inner layer and the outer layer have different thicknesses.

Building panels and methods of making the same are disclosed herein. In one embodiment, a method of injection molding a building panel includes co-mingling a first material and a second material in a molten material, where the second material includes a color that contrasts with the first material. The method also includes injecting the molten material into a cavity of an injection mold, modifying a flow front of the molten material as the molten material flows in the cavity, and cooling the molten material to form a solidified building panel.