| 简介 |
PROBLEM TO BE SOLVED : To provide a re-release type water-based adhesive composition high in adhesivity, easily releasable from the surface of an adherend even after left to stand for a long period of time after applied to the adherend and also showing high whitening resistance to water even in case of being used in fields requiring whitening resistance, and to provide adhesive products.
SOLUTION : The re-release type water-based adhesive composition comprises polymer particles[X] having carboxy group, 3-30 in acid value and ≤300 nm in mean size, a compound[Y] having at least two oxazoline groups and an acetylenediol-based surfactant[Z], wherein the polymer particles[X] are dispersed in water. A film formed from this adhesive composition has the following characteristics : glass transition temperature is ≤-25°C, gel fraction is ≥80 wt.%, and water extract therefrom is ≤2 wt.%. The adhesive product comprises a substrate layer and this adhesive composition thereon. |
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