Pressure-sensitive adhesive and pressure-sensitive adhesive sheet

A pressure-sensitive adhesive for performing thick film coating is provided. The pressure-sensitive adhesive is capable of forming not only an adhesive layer that has high transparency, low turbidity and good adherend visibility even in the thick film coating, but also a moisture-resistant and heat-...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUTA, KATSUNORI, ISHIZU, CHIYO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON 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:	A pressure-sensitive adhesive for performing thick film coating is provided. The pressure-sensitive adhesive is capable of forming not only an adhesive layer that has high transparency, low turbidity and good adherend visibility even in the thick film coating, but also a moisture-resistant and heat-resistant adhesive layer that maintains high transparency and low turbidity even when used in a hot and humid environment. The pressure-sensitive adhesive includes a polyurethane polyol (A) that is a reaction product of a plurality of kinds of polyols (x), which contains a bifunctional polyol (x1) and a tri- or more functional polyol (x2), and a polyisocyanate (y); a polyfunctional isocyanate compound (B); and a cellulose ester (C).