COLLATION SHRINKAGE FILM HAVING EXCELLENT CLARITY AND SUPERIOR TOUGHNESS

摘要

A multilayer film structure comprising at least three layers, wherein at least one layer comprises ethylene and at least one alpha-olefin is claimed, wherein the ethylene interpolymer is characterized as having an average Mv and a valley temperature between the interpolymer and high crystalline fraction, Thc, such that the average Mv for a fraction above Thc from ATREF divided by average Mv of the whole polymer from ATREF (Mhc/Mhp) is less then about 1.95 and wherein the interpolymer has a CDBI of less than 60%. The interpolymer of ethylene and at least one alpha- olefin can also be characterized as having a high density (HD) fraction and an overall density such that % HD fraction 2 - 29.636x + 13036 where x is the density in grams/cubic centimeter.