POLYPROPYLENE FILMS EMPLOYING RECYCLED COMMERCIALLY USED POLYPROPYLENE BASED FILMS AND LABELS
摘要
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.
申请公布号
WO2007076165(A3)
申请公布日期
2008.01.10
申请号
WO2006US60048
申请日期
2006.10.18
申请人
APPLIED EXTRUSION TECHNOLOGIES, INC.;HOSTETTER, BARRY, JASON;WELCH, PHILIP, F.