Compositions of ethylene/α-olefin multi-block interpolymer for blown films with high hot tack
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United States of America Patent
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Nov 30, 2010
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app pub date -
Jul 24, 2009
filing date -
Mar 17, 2004
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Abstract
The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene/.alpha.-olefin interpolymer, wherein the ethylene/.alpha.-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.
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