| 简介 |
An adhesive composition containing an emulsion-based copolymer (A), a cross-linking agent (B), a wetting agent (C), and an associative thickening agent (D); wherein the emulsion-based copolymer (A) in the re-peelable emulsion-based adhesive composition is a copolymer containing 70 to 99.5 mass% of component units (a1) derived from a (meth)acrylic acid ester for which the glass transition temperature (Tg) of the homopolymer is -40°C or lower, and 0.5 to 20 mass% of structural units (a2) derived from a monomer containing a functional group, and the copolymer is obtained by emulsification polymerization using an anionic emulsifying agent. In the re-peelable emulsion-based adhesive composition, the average particle diameter of the copolymer is 320 nm or larger, the amount of wetting agent (C) is 0.01 to 2.00 mass parts for 100 mass parts of the emulsion-based copolymer (A), and the re-peelable emulsion-based adhesive composition can form an adhesive layer on an adhesive sheet that has excellent mechanical stability, excellent application properties during high-speed application, and excellent re-peeling properties. |
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