LOW SHRINK TENSION FILM

LOW SHRINK TENSION FILM

A film includes a core layer including a linear random alpha-olefin/vinyl aromatic copolymer; and first and second outer layers including an olefinic polymer; the film having Young's modulus between 50,000 and 200,000 psi, fre e shrink between 40 and 80% at 240~F, and shrink tension of between...

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Bibliographische Detailangaben
1. Verfasser: CHILDRESS, BLAINE C
Format: Patent
Sprache:eng ; fre
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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Beschreibung
Zusammenfassung:A film includes a core layer including a linear random alpha-olefin/vinyl aromatic copolymer; and first and second outer layers including an olefinic polymer; the film having Young's modulus between 50,000 and 200,000 psi, fre e shrink between 40 and 80% at 240~F, and shrink tension of between 50 and 400 psi, or a shrink force of between 20 and 180 grams, at 240~F. First and seco nd intermediate layers including an ethylene copolymer having a melt index less than 2.0 can be optionally included. Alternatively, a film includes a core layer including an ethylene copolymer having melt index less than 2.0; first and second intermediate layers including a linear random alpha-olefin/vinyl aromatic copolymer; and first and second outer layers including an olefinic polymer; the film having properties as disclosed above.