AQUEOUS-DISPERSION TYPE PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE AND PRESSURE -SENSITIVE ADHESIVE SHEET

This invention provides a water-dispersed PSA capable of ensuring adhesion to plastic film without a need for primer coating while not impairing the properties such as adhesive strength, heat resistance, etc. The water-dispersed PSA composition according to this invention comprises: an acrylic polym...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OKADA, MIKA, KITANO, CHIE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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
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Beschreibung
Zusammenfassung:	This invention provides a water-dispersed PSA capable of ensuring adhesion to plastic film without a need for primer coating while not impairing the properties such as adhesive strength, heat resistance, etc. The water-dispersed PSA composition according to this invention comprises: an acrylic polymer (A) obtainable by polymerizing a monomer composition (A) comprising an alkyl (meth)acrylate as a primary component and a reactive functional group-containing monomer, an acrylic polymer (B) obtainable by polymerizing a monomer composition (B) comprising an alkyl (meth)acrylate as a primary component and a reactive functional group-containing monomer, the polymer (B) having a higher glass transition temperature than the polymer (A), and a crosslinking agent (C) reactive with the reactive functional group. In a DSC measurement of a PSA obtainable by drying the water-dispersed PSA composition, glass transition temperature peaks are detected at -25 °C or below, and between +30 °C to +190 °C, respectively.