A core member for a sandwich panel and a method of forming the core member for the sandwich panel which are capable of attaining a desired profile, a desired pattern on their surfaces, and a desired inner structure in accordance with an application of the sandwich panel. There is provided a thermoplastic resin core member interposed between two resin skin sheets comprising a closed hollow portion located to be inside of a desired position in accordance with an application of the sandwiched panel, and it is formed by clamping parison of a molten thermoplastic resin positioned to be between two split molds so as to exhibit a desired profile and/or a surface shape, two surfaces against each of which the molten parison is pressed to form an adhesive surface on which the corresponding resin skin sheet is formed.

In one embodiment, an apparatus and a method of manufacturing a paperboard tray therewith is provided. In particular, a hub is configured to rotate about a shaft. On the hub, a plurality of first molds are formed in the hub. Conversely, a plurality of second molds are each disposed above each of the plurality of first molds respectively and rotate above the first molds. In this configuration, the plurality of second molds are configured to move in unison with the plurality of first molds as the hub and second molds rotate and to move orthogonally towards and then away from the first molds as the second molds rotate.

A method for manufacturing packaging comprises the steps of: temperature conditioning one or more selected portions of at least one preform; and blowing and/or stretching the at least one temperature conditioned preform into a blow mold to form a container including an offset neck finish. Containers, packaging systems and packaging products are disclosed.

Manufacturing techniques are provided for dispenser containers. An external container is formed from a dimensionally stable material. A preform is provided that has a cup-like molded body constructed from at least two portions. A first portion is made of a blow moldable elastic plastic that is intended for the formation of an internal-container body. A second portion is made of a dimensionally stable plastic for the formation of an internal-container dispensing portion. The second portion has on its outer surface a slot-like recess to provide a vent duct. The preform is heated thereby introducing the preform into the external container and introducing a stretch blow molding pin into the preform. The blow molding is stretched in order to form an internal container with expulsion of the air contained in the space located between the preform and the external container such that the air escapes into the environment via the vent duct.

A blow molded article of manufacture includes first and second battery enclosures each having respective first and second laterally outward extending flanges, and a parison made of a polymeric material. The first and second battery enclosure components are disposed facing each other and with their respective first and second laterally outward extending flanges registered with each other and spaced apart from each other by an offset. The parison is sandwiched between and connects together the first and second battery enclosure components, such that the parison conforms with interior surfaces of the battery enclosure components and with the parison substantially filling the offset. The article of manufacture may be cut along a cut line through the parison and within the offset around an outer perimeter of the article of manufacture, thereby separating the article of manufacture into first and second battery enclosure assemblies. Methods of formation are also disclosed.