ADHESIVE COMPOSITION AND USE OF SAME

Provided is a hot melt-type adhesive composition that, while having transparency, brings about a reduction in an adhesion increase, an adhesive residue on an adherend, and contamination of the adherend after aging in a high-temperature and high-humidity environment. The adhesive composition includes...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: TSUKUDA, Hideki
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Provided is a hot melt-type adhesive composition that, while having transparency, brings about a reduction in an adhesion increase, an adhesive residue on an adherend, and contamination of the adherend after aging in a high-temperature and high-humidity environment. The adhesive composition includes: an acrylic block copolymer having a triblock structure; and a fluorine-based surfactant, the triblock structure having a polymer block having a glass transition temperature higher than 40°C and a polymer block having a glass transition temperature lower than 20°C, the fluorine-based surfactant having a weight average molecular weight of not less than 3,000, a ratio of fluorine atoms/carbon atoms, measured by X-ray photoelectron spectroscopy, on a surface of the adhesive composition that has been peeled off from the adherend after aging in a high-temperature and high-humidity environment being not less than 1.70 × 10-1.