Hot melt adhesive with functionalized metallocene catalyzed polyolefins

Abstract A hot melt adhesive composition containing a functionalized polymer, namely, a metallocene catalysed polyolefin elastomer grafted with maleic anhydride, together with a non functionalized secondary polymer, namely, a metallocene catalysed random or black polyolefin elastomer having a melt i...

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Bibliographische Detailangaben
Hauptverfasser:	Kanderski, Monina D, Vitrano, Michael D
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS POLISHES USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	Abstract A hot melt adhesive composition containing a functionalized polymer, namely, a metallocene catalysed polyolefin elastomer grafted with maleic anhydride, together with a non functionalized secondary polymer, namely, a metallocene catalysed random or black polyolefin elastomer having a melt index equal to or greater than 15, a first tackifying resin having a softening point of at least 95'C, and a wax. The composition may optionally include an aromatic reinforcing resin having a softening point equal to or higher than 115'C, and a plasticizer. These hot melts provide superior hot tack, excellent adhesion, flexibility, and heat resistance above 150'F in applications such as rigid packaging, hot fill packaging, and bottle labelling.