摘要 |
PURPOSE:The titled film or sheet without detriment to a pressure-sensitive adhesive due to UV, prepd. by placing a layer of an UV absorber or an antioxidant-contg. ethylene copolymer between a polyolefin resin substrate layer and a pressure-sensitive adhesive layer. CONSTITUTION:The titled film or sheet prepd. by placing an ethylene copolymer layer 2 such as an ethylene/acrylic acid copolymer layer contg. an UV absorber such as 2,4-dihydroxybenzophenone and/or an antioxidant such as 2,4,5- trihydroxybutyrophenone between a polyolefin resin substrate layer 1 such as PE or PP and a pressure-sensitive adhesive layer 3 such as one primarily consisting synthetic rubber. The pressure-sensitive adhesive is not deteriorated in spite of the absence of a colored substrate.
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