| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive and an adhesive tape, exhibiting an adequate adhesiveness to a component which can be recovered or reused, peelable without a special treatment such as heating when peeled off from the component, and useful for a variety of products to be adhered such as plastics, metals, and urethane foams. SOLUTION: The adhesive is prepared by cross-linking an adhesive composition composed of (a) 100 pts.wt. of an acrylic copolymer composed of at least 50 pts.wt. of n-butyl acrylate, 1-5 pts.wt. of a vinyl monomer of a high polarity, and a vinyl monomer having a functional group reactive with a cross-linking agent as required components; and (b) 10-40 parts weight of a tackifier. The peak of tanδof the adhesive agent is at 5°C or lower; the storage elastic modulus G' at 50°C is over 6×10<SP POS="POST">4</SP>(Pa) and at most 2×10<SP POS="POST">5</SP>(Pa); and tanδat 130°C is at most 1. COPYRIGHT: (C)2013,JPO&INPIT |
