MULTILAYER FILMS HAVING TUNABLE STRAIN HARDENING

MULTILAYER FILMS HAVING TUNABLE STRAIN HARDENING

A multilayer cast film includes a cling layer, a release layer, and at least one core layer disposed between and contacting the cling layer and the release layer. The cling layer includes an ultra low density polyethylene (ULDPE), a propylene interpolymer, or blends thereof. The release layer includ...

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Bibliographische Detailangaben
Hauptverfasser: MA, Eng Kian, GOH, Hwee-Lun, SETYOGROHO, Adit Pradhana Jayusman, PATEL, Rajen M, LEE, Edward L, YAP, Peter
Format: Patent
Sprache:eng
Schlagworte:
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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Zusammenfassung:A multilayer cast film includes a cling layer, a release layer, and at least one core layer disposed between and contacting the cling layer and the release layer. The cling layer includes an ultra low density polyethylene (ULDPE), a propylene interpolymer, or blends thereof. The release layer includes a first linear low density polyethylene (first LLDPE) having a density of from 0.915 to 0.938 g/cc and a melt index of from 0.5 g/10 min to 10 g/10 min. Each of the core layers includes a second linear low density polyethylene (second LLDPE) having a density of from 0.905 to 0.930 g/cc and a melt index of from 0.5 g/10 min to 10 g/10 min. The multilayer cast film includes from 3 wt% to 7 wt%, based on a total amount of polymers present in the multilayer cast film, of the low density polyethylene (LDPE). (Figure 1)