B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/32 (2006.01) B29B 17/02 (2006.01)
Patent
CA 2626650
A multilayer film includes a core layer having recycled, commercially used plastic therein and opposed skin layers, at least one of said opposed skin layers including a whitening agent or other pigmenting agent therein to mask any undesired coloration created by the recycled plastic. Laminations employing the above multilayer film also form part of this invention. A method of this invention for making a multilayer film including a core layer with recycled plastic therein includes the steps of: separating a plastic film or label from a package of commercial product; pelletizing the plastic film or label into pellets for introduction into an extruder of a film forming device and introducing the pelletized plastic film or label into said extruder for introducing the recycled plastic film or label pellets into a core layer of a multilayer film.
La présente invention concerne un film multicouche comprenant une couche centrale à base de plastique à usage commercial recyclé et des couches actives opposées, au moins une de ces couches actives contenant un agent de blanchiment ou un autre agent de pigmentation pour masquer toute coloration indésirable créée par le plastique recyclé. L~invention concerne également des stratifiés utilisant un tel film multicouche. Un procédé selon l~invention destiné à former un film multicouche comprenant une couche centrale en plastique recyclé consiste à : séparer un film ou une étiquette plastique de l~emballage d~un produit commercial, réduire en grains le film ou l~étiquette plastique et introduire les grains dans une extrudeuse d~un dispositif de formage de film afin d~employer le plastique recyclé dans une couche centrale d~un film multicouche.
Hostetter Barry Jason
Welch Philip F.
Applied Extrusion Technologies Inc.
Ridout & Maybee Llp
LandOfFree
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