Bemis Company, Inc.

Teknologian Tutkimuskeskus Vtt Oy

Kalle Ilmari Nättinen

Tuomo Hjelt

Karita Kinnunen

Kaisa Putkisto

Antti Ojala

Hanna-Mari Lahti

Hannu Minkkinen

Jani Lehmonen

Andrew J Lischefski

Petri Jetsu

Ossi Ilari Syvänne

Lisa Wikström

An ovenable tray composite comprises a polymeric based liner and a fiber based component. The polymeric based liner incorporates polyolefin materials for performance in both adhesion (during use) and separation (for disposal) from the fiber based component, as well as high temperature resistant polymers that allow for the entire tray composite to be ovenable. Packages made from the lined trays described herein can be used for packaging food items intended to be heated for cooking or reheating the contents.

Ovenable package

Resealable packages having a pressure sensitive adhesive (PSA) layer that is fully integrated into the packaging film and a removable portion easily accessed by a peel tab at the edge of the package, adjacent to a score. Removal of a portion of the package exposes the pressure sensitive adhesive layer and allows for access to the product in the package interior. The package is easily resealed by folding the exposed pressure sensitive adhesive layer to adhere to the outer surface of the package.

Flexible resealable packages

The present invention concerns a process for producing a thermoformable porous web using a mixture of cellulosic fibers and one or more thermoplastic materials, particularly by foam forming said mixture into a composite foam, and applying the foam into one or more layers on a support to obtain a porous pre-form web. The thus produced porous composite web can be further processed by compression molding to give a rigid high-strength composite structure, which is suitable for use in producing, e.g. panels or plates, packages or hygiene products, insulators or filters, or printed intelligence, electronics or microcellulose products.

Production of high performance thermoplastic composites

Growing community of inventors

Tampere, Finland

Kalle Ilmari Nättinen