COMPOSITIONS OF ETHYLENE/ALPHA-OLEFIN MULTI-BLOCK INTERPOLYMER FOR BLOWN FILMS WITH HIGH HOT TACK

The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene/a-olefin interpolymer, wherein the ethylene/a-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point,...

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Bibliographische Detailangaben
Hauptverfasser: CHEUNG, Yunwa, Wilson, GARNETT, John, W., Jr, LIANG, Wenbin
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene/a-olefin interpolymer, wherein the ethylene/a-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm > -2002.9 + 4538.5(d) - 2422.2(d)2.