ADHESIVE COMPOSITIONS BASED ON BLENDS OF GRAFTED METALLOCENE CATALYZED AND NON-GRAFTED CONVENTIONAL POLYETHYLENES

摘要

Polyethylene-based adhesive compositions which contain as little as 5 weightpercent, and up to 35 weight percent of an acid-graftedmetallocene polyethylene have superior peel strength to comparablecompositions containing an acid grafted non-metallocene polyethylene.Compositions where the acid-grafted metallocene polyethylene component isbased on a metallocene polyethylene having a melt-flow ratioof less than 6.53 and an Mw/Mn of greater than the melt flow ratio less 4.63are as good adhesive compositions as those based on metalloceneresins falling outside these parameters.