Abstract: The pressure sensitive adhesive sheet of the present invention is characterized by a pressure sensitive adhesive sheet in which a pressure sensitive adhesive layer is formed on at least one surface of a base material and in which a surface of the above pressure sensitive adhesive layer at a side opposite to the base material is brought into contact with a release agent layer, wherein the pressure sensitive adhesive layer and the release agent layer do not substantially contain a silicone-based compound, and the pressure sensitive adhesive layer contains an antioxidant. It has a good releasing performance from the release agent layer and is excellent in a releasing stability after ageing.

Abstract: An adhesive sheet comprising a substrate and an adhesive layer formed on at least one side of the substrate, characterized in that an adhesive agent contained in the adhesive layer comprises an acrylic ester copolymer and a citrate plasticizer; the acrylic ester copolymer has a glass transition temperature of ?45° C. or less; the citrate plasticizer is contained in an amount of 1.0 to 50.0 parts by mass (solid content), with respect to 100 parts by mass (solid content) of the acrylic ester copolymer; and a rate of a gel content in the adhesive agent in the adhesive layer is 70% or more, is disclosed. The adhesive sheet according to the present invention has a slightly-adhesive property and a removable property, and can be suitably used, for example, as a carrier sheet.

Abstract: There is disclosed an adhesive sheet comprising an adhesive agent layer formed on a support film containing a plasticizer, and composed of an emulsion which is obtained by subjecting a mixture of ethylenically unsaturated monomers containing components (a) at least 48% by mass of butyl(meth)acrylate, (b) 6 to 22% by mass of methyl methacrylate and (c) 0.5 to 5% by mass of an ethylenically unsaturated carboxylic acid to emulsion polymerization in the presence of a reactive emulsifier in an amount of 0.5 to 5.0 parts by mass based on 100 parts by mass of the mixture of ethylenically unsaturated monomers, and which comprises a polymer having an average particle diameter in the range of 100 to 300 nm.

Abstract: A recyclable transparent adhesive tape comprising a transparent paper substrate having water degradability, provided with a release layer on one surface and an adhesive layer having water degradability or alkali degradability on the other surface is disclosed. The adhesive layer comprises 3-5 wt % of a water-soluble plasticizer.