TACKIFIER DISPERSIONS WITH IMPROVED HUMID AGE PERFORMANCE

This invention pertains to water based pressure sensitive adhesive label and tape formulations containing tackifier dispersions, with greater than about 2 % by weight of non-neutralized low molecular weight carboxylic acid containing compounds, that show improved retention of adhesive properties in...

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Bibliographische Detailangaben
1. Verfasser:	MILLER, PETER, JAMES
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON DYES GENERAL PROCESSES OF COMPOUNDING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES WORKING-UP
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Beschreibung
Zusammenfassung:	This invention pertains to water based pressure sensitive adhesive label and tape formulations containing tackifier dispersions, with greater than about 2 % by weight of non-neutralized low molecular weight carboxylic acid containing compounds, that show improved retention of adhesive properties in conditions of elevated temperature and relative humidity. The low molecular weight carboxylic acid containing compounds serve as scavenger species for migrating multivalent cations such as calcium that are liberated from paper facestocks and backings containing calcium carbonate fillers. L' invention concerne des formulations de bande et d'étiquette adhésives sensibles à la pression, à base d'eau, contenant des dispersions d'agent poisseux, avec plus d'environ 2% en poids d'acide carboxylique à faible poids moléculaire non neutralisé, qui présente une rétention améliorée des propriétés adhésives dans des conditions de température et d'humidité relative élevées. Des composés contenant de l'acide carboxylique à faible poids moléculaire servent d'épurateurs dans la migration de cations multivalents, tels que le calcium, qui sont libérés des films pour étiquettes et des fonds en papier qui renferment des charges de carbonate de calcium.