ADDITIVE FOR CAUSTIC REMOVABLE HOT MELT ADHESIVES AND FORMULATIONS CONTAINING THE SAME

An additive composition for imparting caustic removability to a hot melt adhesive includes an ester functionalized polymer having a polymeric backbone and, pendent thereon, one or more dicarboxylic acid moieties in at least partial ester form. The polymeric backbone has a weight average molecular we...

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Bibliographische Detailangaben
Hauptverfasser:	DOUGHERTY, WILLIAM, R, HANSEN, NESTOR, P
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES ADVERTISING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CRYPTOGRAPHY DISPLAY DISPLAYING DYES EDUCATION LABELS OR NAME-PLATES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PHYSICS POLISHES SEALS SIGNS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	An additive composition for imparting caustic removability to a hot melt adhesive includes an ester functionalized polymer having a polymeric backbone and, pendent thereon, one or more dicarboxylic acid moieties in at least partial ester form. The polymeric backbone has a weight average molecular weight less than 50,000. The ester functionalized polymer may be, for example, an at least partial ester of a maleated hydrocarbon. The additive may further include a low molecular weight α, ethylenically unsaturated anhydride-containing or acid-containing polymer. A caustic removable hot melt adhesive composition comprises a hot melt adhesive additive and a conventional hot melt adhesive resin. A caustic removable adhesive label comprises a substrate and a caustic removable hot melt adhesive composition which includes an additive composition. The caustic removable hot melt adhesives can be used on labels for articles, such as glass bottles.