Dispensing Technologies B.v.

Josephus Cornelius Snijders

Wilhelmus Johannes Joseph Maas

Dominicus Jan Van Wijk

A composite container, comprising a form-retaining outer container comprising a neck, and a flexible inner container, the inner container comprising a dispensing opening mounted in the neck of the outer container is presented. The inner container is connected over a part of its surface area near the dispensing opening to a corresponding surface area of the inside of the outer container near the neck, via adhesive or weld connection, such that there remains a portion of the inner container not connected to the sidewall of the outer container. In response to an overpressure developed by a displacing medium introduced between the inner container and the outer container, a portion of the inner container that is not connected to the outer container moves at least one of: (i) towards the dispensing opening and (ii) within, the portion of the inner container that is connected to the outer container.

Composite container and method for manufacturing same ('multi-layer preform')

A composite container, comprising a form-retaining outer container and a flexible inner container is presented. The inner container comprises a dispensing opening and can be mounted in a neck of the outer container, and the inner container is further connected to the outer container by an adhesive or weld connection over a portion of its periphery. The adhesive or weld connection can take the form of a ring adhesion or weld extending transversely to a central longitudinal axis of the container, or can cover the entire surface area of a defined portion of the respective inner container and outer container walls, such as, for example, the upper one-half of the container. The adhesion or weld can be substantially permanent, or alternatively, the adhesive or weld connection can be adapted to detach in controlled manner under the influence of pressures occurring in the container. Additionally, a method for manufacturing such a composite container is also presented, including forming a form-retaining outer container pre-form comprising a neck, forming a flexible inner container pre-form comprising a dispensing opening, inserting the inner container pre-form into the outer container pre-form and fixing said inner container pre-form to the neck of the outer-container pre-form.

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Liessel, Netherlands

Josephus Cornelius Snijders